阅读说明：本技术 用于加快车辆停机的系统及方法 (For accelerating the system and method for vehicle shutdown ) 是由 艾德·M·杜道尔 于 2019-05-24 设计创作，主要内容包括：本公开提供了“用于加快车辆停机的系统及方法”。提供了用于在车辆关闭事件中快速冷却车辆的发动机系统的方法及系统。在一个示例中,一种方法可以包括经由基于与第二方向相比所述发动机系统的温度是否在其中冷却风扇沿第一方向旋转的条件下以更快速率衰减的指示来选择是沿所述第一方向还是沿所述第二方向旋转所述冷却风扇来冷却所述发动机系统,反之亦然。通过这种方式,依赖于静态低噪声条件的诊断可以针对车辆关闭状况进行,所述车辆关闭状况的时间长度不足以在所述车辆关闭状况的时间范围内允许充分的发动机系统冷却。(Present disclose provides " for accelerating the system and method for vehicle shutdown ".Provide the method and system of the engine system for being quickly cooled down vehicle in vehicle close event.In one example, whether a kind of method may include under conditions of wherein cooling fan is rotated in a first direction selecting to rotate the cooling fan along the first direction or along the second direction to cool down the engine system with the instruction of faster rate attenuation via based on the temperature of the engine system described compared with second direction, and vice versa.In this way, situation can be closed for vehicle dependent on the diagnosis of static low noise conditions to carry out, the time span that the vehicle closes situation is not enough to allow sufficient engine system cooling in the time range that the vehicle closes situation.)

1. a kind of method, comprising:

Via based on compared with second direction engine system temperatures rate of decay whether wherein cooling fan along first direction It is indicated faster under conditions of rotation to select to rotate the cooling wind along the first direction or along the second direction Fan carrys out the engine system of the cooling vehicle under vehicle close event, and vice versa；And

It is diagnosed in the cooling period or later.

2. the method as described in claim 1, wherein carrying out the diagnosis in response to the cooling includes in response to the hair Motivation system is cooled in the threshold temperature of environment temperature and carries out the diagnosis.

3. the method as described in claim 1, wherein the vehicle is just participating in Car sharing model.

4. the method as described in claim 1, wherein the vehicle is able to carry out autonomous vehicle operation.

5. the method as described in claim 1, wherein the diagnosis depends on low noise static state engine system condition.

6. the method as described in claim 1, wherein the instruction is based at least partially on about the vehicle close event Known information.

7. the method as described in claim 1, wherein indicate to be based at least partially under the vehicle close event one A or multiple Parking conditions, one or more of Parking conditions include and influence which cooling fan direction of rotation will will lead to Whether the degree of approach of the structure of the faster engine system temperatures rate of decay and/or the vehicle are parked with tilt angle So that the front end of the vehicle is located at height above sea level more higher than the rear end of the vehicle.

8. the method as described in claim 1, wherein the vehicle for indicating to be based at least partially under the vehicle close event To vehicle communication, wherein from the vehicle group in the preset distance of the vehicle wirelessly obtain about be along the first direction also It is the data that the cooling fan is rotated along the second direction by will lead to the faster engine system rate of decay.

9. the method as described in claim 1, wherein the instruction is based at least partially on the first engine coolant temperature and declines The rate of deceleration and the second engine coolant temperature rate of decay, described first and second engine coolant temperature decaying speed Rate reaches predetermined lasting time simultaneously along the first direction rotation cooling fan respectively via under the vehicle close event The cooling fan is rotated up to the predetermined lasting time along the second direction to measure.

10. method as claimed in claim 9, wherein the engine is via along described first compared with the second direction Direction rotates the cooling fan and the probability quickly cooled down is less than threshold value, and vice versa.

11. a kind of system for hybrid vehicle, comprising:

Engine system；

Cooling fan can be operated along first direction and second direction rotation；

Cooling system comprising electronic coolant pump and electric thermostat apparatus and engine coolant temperature including thermostatic valve Sensor；And

Controller, has the computer-readable instruction being stored on non-transitory memory, and the computer-readable instruction exists Being performed makes the controller:

Under vehicle close event, order starts the electronic coolant pump, the activation electric thermostat apparatus to open the perseverance Warm valve, and the cooling fan is rotated up to predetermined lasting time and via the engine coolant temperature along the first direction Sensor records the first engine system temperatures rate of decay, then rotates the cooling fan described in along the second direction Predetermined lasting time simultaneously records the second engine system temperatures rate of decay；

The first engine system temperatures rate of decay is compared with the second engine system temperatures rate of decay；

By decaying according to whether the first engine system temperatures rate of decay is faster than second engine system temperatures Rate along the threshold value that a direction rotates that the engine system is cooled to environment temperature by the cooling fan, otherwise also So；And

It is cooled in the threshold value of environment temperature, carries out static dependent on engine system in response to the engine system With the diagnosis of low noise conditions.

12. system as claimed in claim 11, further includes:

Autonomous driving system；And

Wherein the controller storage is further instructed via vehicle described in the autonomous driving system operatio.

13. system as claimed in claim 11, further includes:

Grid blind system comprising grid shutter；And

Wherein the controller storage is further instructed to order and fully open the grid shutter to close in the vehicle Both first direction described in event lower edge and the second direction rotate the cooling fan.

14. system as claimed in claim 11, further includes:

One or more solar battery cells can be operated to convert solar radiation into electric energy；And

Wherein controller storage further instruction by being supplied via one or more of solar battery cells Electric energy operates the electronic coolant pump, the electric thermostat apparatus and the cooling fan.

15. system as claimed in claim 11, wherein controller storage is further instructed according to Car sharing model To operate the vehicle.

Technical field

This specification relate generally to reduce cooling vehicle engine system so as to carry out onboard diagnostics program when The method and system of the area of a room.

Background technique

Autonomous vehicle undertakes the certain vehicle tasks handled originally by conventional truck driver.Autonomous vehicle can be by logical Cross dependent on sensor or other resources detect in neighbouring vehicle, pedestrian and road or the object of near roads come control turn To, accelerate, braking etc. and navigate to specific destination.Autonomous vehicle is controlled according to the signal exported by sensors with auxiliary electrode.

Following autonomous vehicle is envisioned for participating in Car sharing or multiplies model altogether.Therefore, total when being included in such automobile When enjoying in model, it is contemplated that following vehicle will add up to travel longer than 250,000 mile in 3 years.It, can be in such example The limitation vehicle dwell time that wherein vehicle does not operate.Such situation may be for following reasons problematic for onboard diagnostics : it is expected that in the noiseless static environment after vehicle closing, (such as 6 to 8 hours) execute certain onboard diagnostics.Carrying out this Time after the vehicle in front of class diagnosis is closed referred to as " shuts down " time, and the downtime allows engine cool and makes to fire Material temperature degree is stablized.More steady and accurate onboard diagnostics test result may be facilitated by carrying out diagnosis under such conditions.Although Such method is effective for the vehicle for having neither part nor lot in Car sharing model, but if before realizing noiseless static environment It is diagnosed, then the autonomous vehicle for participating in Car sharing lacks enough downtimes and may cause that completion rate is low or result is inaccurate Really.Therefore, it is necessary to the system and methods for accelerating vehicle downtime.

Summary of the invention

Inventor has realized that problem mentioned above herein, and has developed system and method and come at least portion It solves these problems with dividing.In one example, a kind of method is included under vehicle close event via being based on and second direction Whether indicated faster under conditions of wherein cooling fan is rotated in a first direction compared to engine system temperatures rate of decay To select to rotate the cooling fan along the first direction or along the second direction to cool down the engine system of vehicle System, vice versa, and is diagnosed in response to the cooling.In this way, the vehicle of Car sharing model is participated in Engine system can be quickly cooled down under vehicle close event, allow to carry out before vehicle operates again dependent on low The diagnosis of noise static conditions.

As an example, the engine system temperatures rate of decay whether wherein cooling wind compared with the second direction Faster the instruction of (vice versa) can be based at least partially on about the vehicle fan under conditions of first direction rotation The known information of close event, one or more Parking conditions being based at least partially under the vehicle close event, extremely The vehicle under the vehicle close event is at least partly based on to vehicle communication, and/or is based at least partially on the first engine Coolant temperature rate of decay and the second engine coolant temperature rate of decay.

From it is following individually or in conjunction with the specific embodiment that attached drawing obtains, the above-mentioned advantage of this specification and other advantages with And feature will be apparent.

It should be understood that foregoing invention content is provided for simple form introduction in a specific embodiment The selection of the concept further described.This is not meant to the key or essential characteristic that indicate theme claimed, described The range of theme is uniquely limited by the claim after specific embodiment.In addition, theme claimed is unlimited In the embodiment for solving any disadvantage in the mentioned above or any part of the disclosure.

Detailed description of the invention

Fig. 1 shows the schematic diagram of the cooling system for hybrid vehicle system.

Fig. 2 shows the schematic diagrames of the fuel system and evaporative emissions system that are connected to engine system.

Fig. 3 A to Fig. 3 B depicts exemplary H-bridge circuit, and the H-bridge circuit can be used for rotating along first or second direction Cooling fan.

Fig. 4 shows the schematic diagram of the circuit for cooling fan activation.

Fig. 5 schematically shows the block diagram of exemplary autonomous driving system.

Fig. 6 shows the high level flow chart of the illustrative methods of the machine learning for usual drive route.

Fig. 7 shows the schematic diagram of the temperature change during recycling in the daytime.

Fig. 8 A to Fig. 8 B depicts exemplary Parking condition, wherein making cooling fan edge to be quickly cooled down engine system One direction rather than opposite direction rotation may be more effective.

Fig. 9, which is depicted using V2V/V2I2V communication, to indicate whether it is possible that rotation cooling fan will in one direction Lead to the high level flow chart than rotating in mutually opposite directions faster engine cool rate.

Figure 10, which is depicted, will will lead to for predicting whether to be possible to rotation cooling fan in one direction than along Xiang Fanfang There is faster engine cool rate to rotation and via the high level flow chart of the cooling engine of proper method.

Figure 11 depict the flow chart described from Figure 10 continue with for initiatively determine will will lead to it is most fast The high level flow chart of the cooling fan direction of rotation of engine cool rate.

Figure 12, which is depicted, to be continued from Figure 10 and shows the additional step between the method for Figure 10 and the method for Figure 11 High level flow chart.

Figure 13 is depicted for carrying out the exemplary of driving engine system cooling down operation according to the method for Figure 10 to Figure 12 Timeline.

Specific embodiment

It is described below and is related to the system and method for the engine system for being quickly cooled down vehicle under vehicle close event. Being quickly cooled down engine system may include operating cooling fan along one of first direction or second direction, which this depends on The most rapid rate that a direction causes engine system temperatures to decay.Therefore, Fig. 1 is depicted including cooling fan and cooling system Vehicular system.Such method can allow for the diagnosis dependent on static low noise conditions, and the diagnosis includes being used for Indicate depositing for the non-required discharge vaporization for being originated from the vehicle evaporative emissions system such as described in Fig. 2 and/or fuel system Or the diagnosis that is not present.Edge can be realized via H-bridge circuit (H-bridge circuit such as described in Fig. 3 A to Fig. 3 B) is used First direction or second direction rotate cooling fan.In one example, solar energy can be used for schematically retouching via in Fig. 4 The circuit drawn is cooling fan operation power under vehicle close event.

The rapid cooling of engine system can for participating in the vehicle (vehicle of such as autonomous operation) of Car sharing model It can be useful.Therefore, Fig. 5 depicts autonomous vehicle systems.Selection is via cold along first direction or second direction rotation But fan can be based at least partially on the known information including particular vehicle close event to cool down engine system, wherein can To obtain such known information via the method described in Fig. 6.In some instances, it can be requested in specific time of day Fast engine is cooling, and in other time of day, it can be via circulation (circulation in the daytime such as described in Fig. 7) in the daytime Natural cooling effect is cooling to carry out fast engine.Selection is via along first direction or second direction rotation cooling fan To cool down Parking condition that engine system can be based at least partially under vehicle close event (such as in Fig. 8 A to Fig. 8 B The Parking condition of description).Selection is to cool down engine system via cooling fan is rotated along first direction or second direction The vehicle carried out under vehicle close event via the method described in Fig. 9 can be based at least partially on to vehicle communication.Figure 10 depict be used to indicate compared with second direction engine system can via be rotated in a first direction cooling fan come it is most fast Whether the probability of quickly cooling but (vice versa) is greater than the illustrative methods of threshold value.If probability is not more than threshold value, in Figure 11 The method of description is determined for the most fast or maximum rate which cooling fan direction of rotation causes engine system cooling. In some instances, Figure 10 may include two additional steps described in Figure 12.Figure 13 is depicted for closing in vehicle The exemplary time line of engine system is quickly cooled down under event.

Turning now to Fig. 1, it is schematically shown that the motor vehicle systems including internal combustion engine 10 and cooling system 102 100 exemplary embodiment.Internal combustion engine 10 includes air inlet 44 and exhaust outlet 48.Cooling system 102 makes coolant circulation By internal combustion engine 10 with absorb waste heat and respectively via coolant lines 82 and 84 will heat after coolant distribution to radiate Device 80 and/or heater core 90.

Specifically, Fig. 1 shows cooling system 102, and the cooling system 102 is connected to engine 10 and via engine Engine coolant is recycled to radiator 80 from engine 10 by the water pump 86 of driving, and makes the engine coolant via cold But agent pipeline 82 returns to engine 10.Engine-driven water pump 86 can drive (FEAD) 36 to be connected to via frontal attachments Engine, and proportionally rotated via band, chain etc. with engine speed.Specifically, engine-driven water pump 86 makes Coolant circulation absorbs heat of engine by the channel in engine cylinder body, cylinder cap etc., then the heat of engine passes through Surrounding air is transmitted to by radiator 80.In the example that wherein pump 86 is centrifugal pump, generated pressure (and gained flow) Can be proportional to speed of crankshaft, the speed of crankshaft is directly proportional to engine speed in the example of fig. 1.The temperature of coolant It can be adjusted by the thermostatic valve 38 (being also referred to as thermostat 38 herein) being located in cooling line 82, the thermostatic valve 38 can be with It remains turned-off until coolant reaches threshold temperature.In some instances, thermostat 38 may include electronically actuated thermostat. The temperature of coolant can be measured via engine coolant temperature sensor 191.

In addition, cooling fan 92 can be connected to radiator 80 so as to slow while vehicle 100 is in engine operation The air-flow by radiator 80 is maintained when mobile or stopping.In some instances, rotation speed of the fan can be controlled by controller 12.It changes Sentence is talked about, and cooling fan 92 can be electronically actuated.Optionally, fan 92 can be connected to engine-driven water pump 86. One or more additional cooling fans can be connected in enging cabin, and be configured as directing air into enging cabin Heater element in 103 and/or it is conducted through the heater element.Cooling fan 92 can be configured as reversible.For example, When cooling fan 92 is rotated in a first direction, air-flow can be drawn into or pull to enging cabin 103 from atmosphere.Optionally, When cooling fan 92 rotates in a second direction, air-flow can push atmosphere to from enging cabin 103.It is described herein, work as cooling When fan 92 is rotated in a first direction, air-flow, which is sucked into enging cabin, is referred to as " pull-type cooling (pull cooling) ". Optionally, when cooling fan 92 rotates in a second direction, air-flow pushes atmosphere to from enging cabin and is referred to as " pushing-type cooling (push cooling)".In other words, when cooling fan is operated along first direction, air is directed into via cooling fan Enging cabin, and when cooling fan operates in a second direction, air is directed into radiator 80.Again in other words, along first Direction operation cooling fan includes the typical direction of rotation that cooling fan rotates in engine combustion air and fuel.Along second The rotation in direction includes reversely rotating.The rotation that H-bridge circuit (referring to Fig. 3 A to Fig. 3 B) may be used to cooling fan is reversed.This Text is discussed that being rotated in a first direction cooling fan may include rotating cooling fan along forward direction, and revolve in a second direction Turning cooling fan may include rotating in mutually opposite directions cooling fan.

It is appreciated that rotating in a second direction cooling fan can be used at least partly removing dust from radiator 80 And/or clast.For participate in Car sharing model vehicle, such cleaning of radiator may be it is especially desirable, wherein this Class vehicle can add up to travel a long section distance in a short time.

As described above, coolant can flow through coolant lines 82, and/or flow through cooling after through engine 10 Agent pipeline 84 reaches heater core 90, and in the heater core, heat can be passed to passenger compartment 104, then cold But agent can flow back into engine 10.In some instances, engine-driven pump 86 can operate so that coolant circulation is logical Both supercooling agent pipelines 82 and 84.In the example that wherein vehicle 100 has hybrid electric propulsion system, in addition to starting Except the pump of machine driving, electronic auxiliary pump 88 also may include in a cooling system.Therefore, auxiliary pump 88 can be used for starting Heater core 90 is circulated the coolant through during the occasion of the closing of machine 10 (for example, pure electric vehicle operation) and/or in engine The pump 86 of assisted engine driving when positive operation.As engine-driven pump 86, auxiliary pump 88 can be centrifugal pump；So And the pressure (and gained flow) generated by pump 88 can be supplied to the quantity of power of pump with by energy storage device (ESD) 26 It is proportional.

Motor vehicles 100 can also include grid 172, and the grid 172 provides opening (for example, grid mouth, bumper are opened Mouthful etc.) with receive pass through or close to vehicle front end 101 and enter enging cabin air-flow.Then, such air-flow can be dissipated Hot device 80 and other component are using keeping the engine and/or speed changer cooling.In addition, air-flow can be discharged because of vehicle air tune It saves the heat generated and turbocharging/mechanically-sapercharged engine performance equipped with intercooler can be improved, it is described Intercooler is lowered into the temperature of inlet manifold/engine air.Other hood lower component (fuel system, electricity Pond, fuel vapo(u)r filter tank etc.) it also can benefit from cooling air-flow.Therefore, grid blind system 170 can be with auxiliary coolant system 102 cooling internal combustion engines 10.Grid blind system 170 includes one or more grid shutters 174, one or more A grid shutter 174 is configured as adjustment and passes through the received throughput of grid 172.

Grid shutter 174 can operate between an open position and a closed, and can maintain its any position Or in multiple middle positions.In other words, the aperture of adjustable grid shutter 174 beats 174 part of grid shutter It opens, part closing, or recycles between an open position and a closed, to be mentioned in the smallest situation of fuel economy penalty For the air-flow for cooling down engine compartment components.Pass through this is because closing and/or part closing grid shutter 174 reduce The received throughput of grid 172, therefore reduce the aerodynamic drag on vehicle.

In some embodiments, control system 14 can be configured as the aperture of adjustment grid shutter 174.Adjust grid The aperture of shutter 174 may include turn on one or more grid shutters, close one or more grid shutters, part It opens one or more grid shutters, partially turn off one or more grid shutters, adjustment opening and closing timing in ground Deng.As an example, controller 12 can be communicatively connected to grid blind system 170, and can have storage Instruction on it is to adjust the aperture of grid shutter 174.

Furthermore, it is possible to adjust grid blind system 170 during non-driving vehicle condition.Therefore, one or more is adjusted The aperture of a grid shutter 174 can be in response to non-driving vehicle condition.Non- driving vehicle condition can be deceleration conditions, system Dynamic situation, loose accelerator pedal situation, their combination, or signal non-driving vehicle condition or will occur Another type of situation.For example, it is also possible to use auto-cruising control brake signal.Further, it can be used complete The slower region in office's positioning signal instruction front, close to descending etc..In some instances, grid shutter 174 can be closed in key It is electronically activated during closing situation.

In this exemplary embodiment, hybrid propulsion system includes energy conversion device 24, the energy converting means Setting 24 may include motor, generator etc. and their combination.Energy conversion device 24 is further shown as being connected to energy Storage device 26 is measured, the energy storage device 26 may include battery, capacitor, flywheel, pressure vessel etc..Energy converting means It sets and is operable to absorb energy from vehicle movement and/or engine and is converted into being suitable for by energy stores by the energy of absorption The form of energy of device storage (in other words, generator operation is provided).Energy conversion device can also be operated with to driving wheel 160, the supplies such as engine 10 (for example, providing motor operation), auxiliary pump 88, cooling fan 92 export (power, function, torque, speed Degree etc.).It should be understood that in some embodiments, energy conversion device may include only motor, only generator or motor and Both generators, and turn for providing energy appropriate between energy storage device and driving wheel of vehicle and/or engine The various other components changed.

It may include full hybrid power system that hybrid electric, which promotes embodiment, and wherein vehicle can rely only on and start Machine relies only on energy conversion device (for example, motor) or relies on the combination of the two to run.It can also be main using engine The auxiliary or light hybrid of source of torque configure, and hybrid propulsion system is for for example stepping on accelerator pedal or other shapes Increased torque is selectively conveyed under condition.Further, starter/generator and/or intelligent AC can also be used to send out Electric system.In addition, above-mentioned various parts can be controlled by vehicle control device 12.

From the foregoing it will be appreciated that exemplary hybrid electric propulsion system can have various operation modes.It is mixing entirely It closes in powered embodiment, for example, energy conversion device 24 (for example, electric motor) can be used as propulsion vehicle in propulsion system Source of torque operated.Being somebody's turn to do " pure electric vehicle " operation mode can use during braking, low speed, and in traffic lights It stops using at place.In another mode, engine 10 is activated with combustion air and fuel, and serves as propulsion driving wheel 160 unique source of torque.In another mode that referred to as " can assist " mode, hybrid propulsion system can be supplemented The torque that there is provided by engine 10 simultaneously acts synergistically with the torque.As indicated above, energy conversion device 24 can be with Generator mode operation, wherein absorbing torque from engine 10 and/or speed changer.In addition, energy conversion device 24 can be used for (for example, between spark ignition modes and compression ignition mode during transformation of the engine 10 between different combustion modes Transformation during) increase or absorb torque.

Energy storage device 26 can be as indicated by arrow 184 periodically from outside vehicle is resided in (for example, not being vehicle A part) power supply 180 receive electric energy.As a non-limiting example, Vehicular system 100 can be configured as plug-in Formula hybrid electric vehicle (PHEV), wherein electric energy can be supplied to energy from power supply 180 via electric energy transmission cable 182 and deposit Storage device 26.During energy storage device 26 carries out recharging operation from power supply 180, power transmission cable 182 can be with Electricity Federation Connect energy storage device 26 and power supply 180.When vehicle propulsion system is operated to promote vehicle, power transmission cable 182 can In the separated of power supply 180 and energy accumulating device 26.Control system 14, which can be identified and/or be controlled, is stored in energy stores dress Electric flux in setting, the electric flux can be referred to as state-of-charge (SOC).Power supply 180 may include a part of power grid.

In other embodiments, it is convenient to omit power transmission cable 182, wherein can be in energy storage device 26 from electricity Source 180 wirelesslys receive electric energy.For example, energy storage device 26 can be via in electromagnetic induction, radio wave and electromagentic resonance One of or more persons from power supply 180 receive electric energy.It is to be appreciated, therefore, that any suitable method can be used never to include The power supply of a part of vehicle recharges energy storage device 26.In this way, motor can be removed by utilizing Energy source except the fuel that engine 10 is utilized promotes vehicle.

In some instances, Vehicular system 100 may include that can operate so that incident solar radiation is converted into electric energy One or more solar battery cells 108.Solar battery cell 108 is electrically coupled to solar-electricity via charge controller 32 Pond 30.Solar battery cell 108 and charge controller 32 can be operable for answering electric current for charging to solar battery 30. In this example, solar battery 30 is contained in energy storage device 26 and is electrically coupled to thereon, but in other configurations, Solar battery 30 can be electrically coupled to energy storage device 26 in independent accommodate, or can be with 26 object of energy storage device The isolation of reason ground and electric isolution.Therefore, solar battery 30 can be configured as according to engine operating condition, charged state and one Or multiple batteries need to provide charge to energy storage device 26 or receive from it charge.

Solar battery 30, which can be configured as, independently direct supplies to Vehicular actuator and device for charge, such as cold But fan 92, auxiliary pump 88, thermostatic valve 38 (its may include can electric actuation valve) and grid shutter 174.In some instances, Charge controller 32 can be used for directly powering to Vehicular actuator and device, without storing a charge in solar energy first In battery 30.By the way that solar battery cell 108 is directly coupled to vehicle via charge controller 32 and/or solar battery 30 Device and actuator, can activate related to weather and temperature control in response to the sunlight illumination on solar battery cell Vehicle fitting and actuator.For example, passenger cabin air can be activated to adjust, vehicle window can be aerated, it can be to intelligence Vehicle window colour or otherwise configure to stop UV, IR and/or visible light etc..As herein and with reference to figures 10 to Figure 12 It is described, cooling fan 92, electronic auxiliary pump 88 and thermostatic valve 38 can during key-off situation by dependent on from The power that solar battery cell 108 conveys controls.

As shown in fig. 1, solar battery cell 108 may be mounted on any convenient and fast outer surface of vehicle, such as Roof, hood, luggage compartment etc..However, additionally or alternatively, solar battery cell 108 may be mounted at the interior of vehicle Portion is such as mounted on other passenger compartment surfaces of instrument board or neighbouring vehicle window or body light light bulb.Generally, solar battery Unit can be operated so that incident solar radiation on it is converted into electric energy.In some embodiments, solar battery cell 108 It may include a series of photovoltaic cells unit formed by amorphous semiconductor material (such as silicon).In addition, individual photovoltaic electric Pool unit can interconnect to provide the electric energy of constant flow rate to public output cable 110, and the public output cable 110 will too Positive energy battery unit 108 is electrically coupled to charge controller 32 and solar battery 30.

In order to carry out the operation of the above-mentioned type, as discussed, control system 14 can use.Control system 14 can wrap Controller 12 is included, the controller 12 can receive information from various sensors 16 and can be to various actuators 81 (such as Above with reference to those of Fig. 1 description actuator) send signal.Various actuators may include grid shutter, auxiliary pump, cooling Fan etc..

Fig. 2 shows the schematic diagrames of Vehicular system 206.The Vehicular system that Vehicular system 206 can be and describe in Fig. 1 100 identical Vehicular systems.Vehicular system 206 includes engine system 208, and the engine system 208 is connected to discharge control System 251 and fuel system 218 processed.Emission control systems 251 include the fuel steaming that can be used for capturing and storing fuel vapo(u)r Gas container or filter tank 222.

Engine system 208 may include the engine 210 (for example, identical as 10) with multiple cylinders 230.Engine 210 include engine intake 223 and engine exhaust port 225.Engine intake 223 includes flowing via inlet channel 242 Body it is connected to the air throttle 262 of motor intake manifold 244 (for example, identical as 44).Engine exhaust port 225 includes leading to Exhaust is directed to atmosphere by the exhaust manifold 248 (for example, identical as 48) of exhaust passage 235, the exhaust passage 235.Start Machine exhaust outlet 225 may include one or more emission control systems 270,270 row of may be mounted at of emission control system At close-coupled position in port.One or more emission control systems may include three-way catalyst, dilute NOx trap, Diesel particulate filter, oxidation catalyst etc..It should be understood that other component (such as various valves and sensor) may include sending out In motivation.

Gas handling system hydrocarbon trap (AIS HC) 224 can be placed in the inlet manifold of engine 210, with Absorption unburned fuel, the fuel oozed out from bursting device from inlet manifold generate during engine off-time section Fuel vapo(u)r and/or crankcase ventilation discharge in fuel vapo(u)r.AIS HC may include with HC vapor sorption/desorption material The stacking of the continuous stratification polymer sheet of dipping.Optionally, absorption/desorption material can be filled between polymer sheet layers Region in.Absorption/desorption material may include one of carbon, active carbon, zeolite or any other HC adsorption/desorption material Or it is a variety of.When power operation leads to air-distributor vacuum and gained air-flow by AIS HC, the steam of trapping is from AIS HC It passively desorbs and burns within the engine.Therefore, during power operation, charge-air fuel steam is stored and from AIS HC 224 is desorbed.In addition, the fuel vapo(u)r stored during tail-off can also be during power operation from AIS HC Middle desorption.In this way, AIS HC 224 continuously can be loaded and be extracted, and even if engine 210 is closed, trapping Device can also reduce the discharge vaporization from inlet channel.

Fuel system 218 may include the fuel tank 220 for being connected to fuel pump system 221.Fuel pump system 221 can wrap One or more pumps are included for the combustion to the injector (exemplary sparger 266 shown in such as) for being transported to engine 210 Material pressurizes.Although illustrating only single injector 266, additional injector is provided for each cylinder.It should be bright White, fuel system 218 can be the fuel system of return-less fuel system, return fuel system or various other types.Fuel Case 220 can save pluralities of fuel mixture, including a series of fuel with determining alcohols, such as various gasoline-ethanol mixing Object, including E10, E85, gasoline etc. and their combination.Fuel level sensor 234 in fuel tank 220 can be to The instruction (" fuel level input ") of the offer fuel level of controller 212.As depicted, fuel level sensor 234 can be with Float including being connected to variable resistance.It is alternatively possible to use other kinds of fuel level sensor.

The steam generated in fuel system 218 can return before being drawn into engine intake 223 via steam Closed tube line 231 is directed into evaporative emission control system 251, and the evaporative emission control system 251 includes fuel vapo(u)r filter tank 222.Vapor recovery pipeline 231 can be connected to fuel tank 220 via one or more conduits, and may include at certain One or more valves of fuel tank are isolated during a little situations.For example, vapor recovery pipeline 231 can be via conduit 271,273 and One or more of 275 or their combination be connected to fuel tank 220.

In addition, in some instances, one or more tank venting valves are in conduit 271,273 or 275.In addition to other Except function, the fuel vapo(u)r filter tank that tank venting valve can permit emission control systems maintains low pressure or vacuum, without increasing The fuel vaporization rate (otherwise, if fuel tank pressure reduce will this thing happens) of refuelling case.For example, conduit 271 It may include gradient ventilation valve (GVV) 287, conduit 273 may include that filling limits ventilation valve (FLVV) 285, and conduit 275 It may include gradient ventilation valve (GVV) 283.In addition, in some instances, recovery line 231 can be connected to fuel systems 219.In some instances, fuel systems may include for sealing fuel systems with the fuel tank cap with atmospheric isolation 205.Fuel systems 219 are connected to fuel tank 220 via fuel filler tube or neck 211.

In addition, fuel systems 219 may include refuelling lock 245.In some embodiments, refuelling lock 245 can be with It is fuel tank cap locking mechanism.Fuel tank cap locking mechanism, which can be configured as, is automatically locked in close stance for fuel tank cap It sets, prevent fuel tank cap is from opening.For example, when in fuel tank pressure or vacuum degree be greater than threshold value when, fuel tank cap 205 can To keep locking via refuelling lock 245.It is requested in response to refuelling, such as the request that vehicle driver initiates, fuel tank can Pressure or vacuum degree to be depressurized, and in fuel tank can unlock fuel tank cap after dropping to threshold value or less.Combustion Hopper lid locking mechanism can be latch or clutch, and the latch or clutch prevent from removing fuel tank cap in engagement.Door bolt Lock or clutch can for example be determined by solenoid by electric lock, or for example can mechanically be locked by pressure diaphragm.

In some embodiments, refuelling lock 245 can be the filling pipe valve at the oral area of fuel filler tube 211. In such embodiments, refuelling lock 245 can not prevent the removal of fuel tank cap 205.More precisely, refuelling lock 245 can To prevent in refuelling pump insertion fuel filler tube 211.Filling pipe valve can for example be determined by solenoid by electric lock, such as It is mechanically locked by pressure diaphragm.

In some embodiments, refuelling lock 245 can be bunkering port cover lock, the vehicle body cover that such as locking is located at vehicle The latch or clutch of refuelling lid in plate.Bunkering port cover lock can for example be determined or example by solenoid by electric lock Such as it is mechanically locked by pressure diaphragm.

In the embodiment for wherein using electric mechanism locking refuelling lock 245, such as when fuel tank pressure is reduced to pressure When below force threshold, refuelling lock 245 can be unlocked by the order from controller 212 (for example, identical as 12).At it In the middle embodiment using mechanical mechanism locking refuelling lock 245, such as when fuel tank pressure is reduced to atmospheric pressure, refuelling Lock 245 can be unlocked via barometric gradient.

Emission control systems 251 may include one or more emission control systems, such as filled with appropriate adsorbent One or more fuel vapo(u)r filter tanks 222, the filter tank are configured as temporarily being captured in the combustion during fuel tank refueling operation Expect steam (hydrocarbon including vaporization) and " running losses " (that is, the fuel vaporized during vehicle operation).One In a example, used adsorbent is active carbon.Emission control systems 251 can also include filter tank ventilating path or ventilation duct Line 227, when storing or trapping from the fuel vapo(u)r of fuel system 218, the filter tank ventilating path or draft tube liner 227 can Gas is discharged to atmosphere from filter tank 222.

Filter tank 222 may include (or the buffer area) buffer 222a, and each of the filter tank and buffer include inhaling Attached dose.As indicated, the volume of buffer 222a can be less than the volume (for example, sub-fraction of the volume) of filter tank 222.It is slow The adsorbent rushed in device 222a can be identical or different (for example, both of which may include charcoal) with the adsorbent in filter tank.It is slow Rushing device 222a can be positioned in filter tank 222, so that fuel tank steam is attracted to buffer first during filter tank loads Interior, then when buffer is saturated, fuel tank steam in addition is attracted in filter tank.In contrast, during filter tank extracts, Fuel vapo(u)r desorbs (for example, reaching threshold quantity) first from filter tank, then desorbs from buffer.In other words, buffer Loading and unloading and the loading of filter tank and the no linear relationship of unloading.Therefore, the effect of filter tank buffer is inhibited from fuel Case flows to any fuel vapo(u)r spike of filter tank, thus reduces a possibility that any fuel vapo(u)r spike enters engine.

It is usually exothermic reaction (release heat) that fuel vapo(u)r, which is adsorbed onto filter tank adsorbent bed,.Similarly, it is adsorbed from filter tank Agent bed desorption fuel vapo(u)r is usually the endothermic reaction (absorbing heat).Therefore, one or more temperature sensors 290 can couple To filter tank 222 (and/or buffer 222a).Temperature sensor 290 monitors filter tank during can be used, for example, in refueling operation Temperature can be further used for monitoring filter tank temperature for example during extraction operation to infer to infer that filter tank loads Into the fuel charge of engine intake.

When the fuel vapo(u)r of storage is drawn into engine from fuel system 218 via extracting pipeline 228 and extract valve 261 When air inlet 223, draft tube liner 227 can also allow for fresh air to be sucked into filter tank 222.It can for example, extracting valve 261 It to be normally closed, but can be opened during certain situations, so that the vacuum from motor intake manifold 244 is provided to Fuel vapo(u)r filter tank is to be extracted.In some instances, draft tube liner 227 may include the sky that 222 upstream of filter tank is arranged in Air cleaner 259.

In some instances, the air between filter tank 222 and atmosphere and vapor stream can be by being connected in exhaust line 227 Interior canister vent valve (CVV) 297 is adjusted.When being included, canister vent valve 297 can be normally open valve, so that fuel Case isolating valve 252 (FTIV) can control the ventilation of fuel tank 220 Yu atmosphere.FTIV 252 can be located at combustion in conduit 278 Between hopper and fuel vapo(u)r filter tank.FTIV 252 can be normally close valve, allow fuel vapo(u)r from fuel tank 220 when opening It is discharged into filter tank 222.Then can be by fuel vapor emission into atmosphere, or via filter tank valve 261 is extracted by fuel vapo(u)r It is drawn into engine aspirating system 223.

By selectively adjusting various valves and solenoid, fuel system 218 can be by controller 212 (for example, with 12 phases It operates in different modes together).For example, fuel system can be operated in fuel vapo(u)r memory module (for example, adding combustion in fuel tank During material operation and engine is not run), wherein controller 212 can open isolating valve 252 and simultaneously close off filter tank extraction valve (CPV) 261 to be introduced directly into filter tank 222 for refuelling steam, while fuel vapo(u)r being prevented to be directed into inlet manifold.

As another example, fuel system can be operated in filling mode (for example, when vehicle driver requests combustion When hopper refuelling), wherein controller 212 can open isolating valve 252, while keeping filter tank to extract valve 261 and closing to permit Perhaps it realizes tank depressurization before adding fuel in fuel tank.Therefore, isolating valve 252 can be protected during refueling operation Opening is held to allow refuelling vapor storage in filter tank.After refuelling completion, isolating valve can be closed.

As another example, fuel system can be operated in filter tank decimation pattern (for example, having reached discharge control After device initiation temperature processed and engine operation), wherein controller 212 can open filter tank extraction valve 261 and simultaneously close off Isolating valve 252.Herein, it can be used for through draft tube liner 227 and led to by the vacuum that the inlet manifold of operation engine generates It crosses fuel vapo(u)r filter tank 222 and sucks fresh air, the fuel vapo(u)r of storage is drawn into inlet manifold 244.In the mode In, the fuel vapo(u)r extracted from filter tank burns within the engine.It can continue to extract, until the fuel vapo(u)r being stored in filter tank Amount is lower than threshold value.

Filter tank draft tube liner 297 can be used for adjusting air and vapor stream between filter tank 222 and atmosphere.CVV can be with For diagnostic program.When being included, CVV can be during fuel vapo(u)r stores operation (for example, in the fuel tank refuelling phase Between and when engine is not run) open, allow to be pushed out in the air by having removed fuel vapo(u)r after filter tank Atmosphere.Equally, during extraction operation (for example, during filter tank regeneration and when engine operation), CVV can be opened to allow Flow of fresh air removes the fuel vapo(u)r being stored in filter tank.In some instances, CVV 297 can be solenoid valve, wherein institute Opening or closing via the solenoidal actuating of filter tank ventilation for valve is stated to execute.Specifically, canister vent valve can be in filter tank The normally open valve closed when divulging information solenoid-actuated.In some instances, can be configured as can lock-up solenoid valve by CVV 297.It changes Sentence is talked about, and when valve, which is in, closes in configuration, its locking in the case where not needing extra current or voltage is closed.For example, valve It can be closed with 100ms pulse, then be opened in later time point with another 100ms pulse.In this way, reduce maintenance CVV closes required amount of battery power.

Controller 212 may include a part of control system 214 (for example, identical as 14).Control system 214 is illustrated as Information is received from multiple sensors 216 (for example, identical as 16) (its various example is being described herein) and sends control signal To multiple actuators 281 (for example, identical as 81) (its various example is being described herein).As an example, sensor 216 can To include fuel tank pressure sensor (FTPT) 291, environment temperature sensor 299 and filter tank temperature sensor 290.Such as it is vented The other sensors such as lambda sensor 233, exhaust gas temperature sensor 237 and other pressure, temperature, oxygen, hydrocarbon, sky Combustion is than that can be connected to each position in Vehicular system 206 with component sensor.As another example, actuator can wrap It includes cooling fan 92, electronic auxiliary pump 88, electric thermostat apparatus (for example, 38), canister vent valve 297, filter tank and extracts valve 261 and combustion Hopper isolating valve 252.Controller 212 can be converted between suspend mode and awakening mode to obtain additional energy efficiency. During suspend mode, controller can save energy by closing onboard sensor, actuator, accessory, diagnosis etc.. Starting can be maintained during suspend mode but can be to reduce power mode operation basic function, such as clock and control Device and battery maintenance operation.During suspend mode, controller will than consumed during awakening mode less current/voltage/ Power.During awakening mode, controller can be with full power operation, and the component operated by controller can be grasped according to operating condition Make.Controller can various sensors from Fig. 1 to Fig. 2 receive signal, handle the signal, and in response to processed signal Based on instruction corresponding with one or more programs or it is programmed in code therein and triggers the various actuators of Fig. 1 to Fig. 2. Exemplary control process is described herein with respect to Fig. 6 and Fig. 9 to Figure 12.

Non-required discharge vaporization detection program can be by controller 212 in fuel system 218 and evaporation control system 251 On intermittently execute and do not deteriorated with confirmation system.It therefore, can be in tail-off using due to the temperature in fuel tank Change after tail-off with pressure and the engine-off natural vacuum (EONV) that generates and/or from vacuum pump The vacuum of (for example, 295) supplement detects program to execute non-required discharge vaporization.It is alternatively possible to just run in engine When executed by operated vacuum pumps and/or using motor intake manifold vacuum discharge vaporization detection program.

Non-required discharge vaporization testing and diagnosing can be by being communicably connected to the evaporation horizon check mould of controller 212 Block (ELCM) 295 executes.ELCM 295 can be connected between filter tank 222 and atmosphere in ventilation opening 227.ELCM 295 can To include the vacuum pump for applying negative pressure to fuel system when being evaporated emission test.In some embodiments, vacuum Pump, which can be configured as, to be reversible.In other words, vacuum pump can be configured as in evaporative emissions system 251 and fuel system Apply negative pressure or positive pressure on 218.ELCM 295 can also include referring to aperture (such as 0.02 ") and pressure sensor 296.Therefore Can execute with reference to check, wherein can reference aperture both ends aspirate vacuum, obtained in vacuum level include instruction not There are the vacuum levels of non-required discharge vaporization.For example, after reference inspection, fuel system 218 and evaporative emissions system 251 can be emptied by ELCM vacuum pump.In the case where non-required discharge vaporization is not present, vacuum can descend to reference Check vacuum level.Optionally, there are non-required discharge vaporization, vacuum may not drop to reference to inspection Vacuum level.

As an example, such diagnosis can be at the appointed time (for example, in key-off event or vehicle close event 6 to 8 hours later) it initiates, to allow (low) the noise static conditions reduced (for example, stable fuel temperature is in specific environment In temperature threshold, stable engine temperature is in specific environment temperature threshold etc.) to be diagnosed.It carries out under such conditions Diagnosis can provide more acurrate and steady result.In such example, controller can enter dormant state, and can ring Ying Yu such as timer expires and is triggered at the appointed time to wake up to be diagnosed.However, as discussed above and It will be discussed in further detail below, it, may be without enough vehicle shut-in times for participating in the vehicle of Car sharing model Such specified time to make it possible to be fully cooled in engine system and fuel system carries out such diagnosis.Accordingly, it is possible to Wish to be quickly cooled down the engine system (and fuel system and evaporative emissions system) of such vehicle to grasp again in vehicle Such diagnosis is initiated in the earlier time that vehicle closes situation before work.

Although discussed above is diagnosis as one kind (for example, diagnosing the presence of non-required discharge vaporization or not depositing ), but (this can benefit from there may be the issuable static low noise conditions after shutdown in 6 to 8 hours are also relied on Engine system, fuel system and/or evaporative emissions system more rapidly cool down) any amount of other diagnosis.It can manage Solution, any vehicle that the system and method being discussed herein can be applied to can benefit from low noise static conditions close diagnosis.

As discussed above, Vehicular system 206 (for example, identical as 100) can be hybrid vehicle, the mixing Power car has the multiple source of torque (for example, identical as 160) that can be used for one or more wheels 292.The example shown in In, Vehicular system 206 may include motor 293 (for example, identical as 24).Motor 293 can be motor or motor/generator. When the engagement of one or more clutches 272, the crankshaft 294 and motor 293 of engine 210 are connected to vehicle via speed changer 254 Wheel 292.In discribed example, first clutch is arranged between crankshaft 294 and motor 293, and second clutch is set It sets between motor 293 and speed changer 254.Controller 212 can send signal to the actuator of each clutch 272 to engage Or separation clutch, so that crankshaft 294 and motor 293 and component connected to it are connected or disconnected, and/or by motor 293 It is connected or disconnected with speed changer 254 and component connected to it.Speed changer 254 can be gearbox, planetary gear system or another A type of speed changer.Power drive system can configure by various modes, including be configured as in parallel, series connection or mixed connection Formula hybrid vehicle.

Motor 293 receives electrical power from traction battery 258 (for example, identical as 26) to provide torque to wheel 292.Motor 293, which also can be used as generator operation, is charged with providing electric power for example during brake operating to traction battery 258.

Vehicular system 206 can be configured with the S/S feature 298 for being communicably connected to control system 214 (herein Referred to as S/S system), wherein control system 214 can not receive driving if meeting selected idle-stop condition Member input automatically turns off internal combustion engine 210 (making internal combustion engine idle-stop) in the case where closing engine.These Threshold value can be less than for example including torque demand, engine speed is less than threshold engine revolving speed, speed is lower than threshold value speed (example Such as, 5mph), energy storage device be sufficiently charged, be not received by air conditioning request etc..Equally, engine can be rung Threshold value, battery request charging, request operation air conditioning compressor etc. should be higher than in torque demand and automatically restarted.In In one example, engine can in response to after (for example, at traffic signals) stop certain duration driver answer It is subsequently restarted with accelerator pedal.Engine can turn via the motor or motor for being connected to engine crankshaft without refuelling Dynamic to start, until reaching required engine speed, hereafter motor or motor can be disabled and can restore engine and add Fuel.Hereafter, engine combustion can support engine rotation.Due to automatic starting/stopping, it is possible to reduce fuel consumption It is discharged with exhaust gas.

Controller 212 can be connected to wireless communication device 256 for keeping Vehicular system 206 and network cloud 260 direct Communication.250 are carried out wireless communication using via wireless communication device 256, Vehicular system 206 can be retrieved from network cloud 260 Data about current and/or upcoming environmental aspect (ambient humidity, temperature, pressure etc.).In one example, When driving cycle is completed, the database 213 in controller 212 can use including driving behavior data, engine operating condition, Date and time information, traffic information, the route information of travel route has updated.

As known in fields, controller 212 can be used the communication technology appropriate and be communicably coupled to other vehicles Or infrastructure.For example, control system 214 can be connected to other vehicles or infrastructure via wireless communication 250, it is described Wireless network may include Wi-Fi, bluetooth, a type of cellular service, wireless data transmission protocols etc..By vehicle to vehicle (V2V), vehicle are to infrastructure to vehicle (V2I2V) and/or vehicle to infrastructure (V2I or V2X) technology, control system 214 can broadcast (and reception) about vehicle data, vehicle diagnostics, traffic condition, vehicle position information, vehicle operation program etc. Information.The communication exchanged between vehicle and/or infrastructure and information can be directly between vehicle and/or infrastructure It carries out, or can be multi-hop.In some instances, telecommunication (for example, WiMax) can be used instead of V2V, V2I2V Deng or be used in combination so that overlay area is extended several miles with them.In other other examples, vehicle control system 214 250 can be carried out wireless communication via network cloud 260 and internet and other vehicles or infrastructure.

Vehicular system 206 can also include onboard navigation system 284 (for example, global positioning system).Navigation system 284 can To include one or more position sensors for assisting estimation speed, vehicle altitude, vehicle location/place etc..As above It is discussed, control system 214 can be additionally configured to via internet or other communication networks receive information.From GPS receiver The information that can obtain via internet of information for reference to determine local weather condition, on-site vehicle supervision etc..One In a little examples, the information from GPS can enable to collect vehicle position information, traffic information etc. via vehicle.

As discussed above, cooling fan (for example, 92) can be reversible, along first direction or second direction rotation Turn (referring to Fig. 1).Such ability can be realized via H-bridge circuit.Therefore, Fig. 3 A to Fig. 3 B, which is shown, can be used for inverting cooling The exemplary circuit 300 of the rotational orientation of fan.Such circuit can be used for along first direction or second direction rotation cooling wind Fan.Circuit 300 includes first side (LO) 320 and second side (HI) 330.Side 320 includes transistor 321 and 322, and side 330 is wrapped Include transistor 331 and 332.Circuit 300 further includes power supply 340.

In figure 3 a, transistor 321 and 332 is activated (excitation), and transistor 322 and 331 is turned off.In the configuration In, the left lead 351 of motor 310 is connected to power supply 340, and the right lead 352 of motor 310 is connected to ground connection.Pass through this side Formula, motor 310 and then cooling fan can be run along first direction.

In figure 3b, transistor 322 and 331 is activated (excitation), and transistor 321 and 332 is turned off.In the configuration In, the right lead 352 of motor 310 is connected to power supply 340, and the left lead 351 of motor 310 is connected to ground.Pass through this side Formula, motor 310 and then cooling fan can be run in a second direction.

Turning now to Fig. 4, as discussed above, cooling fan can be activated during vehicle closing situation, and Solar energy can be depended on during such situation.Optionally, such as when power operation is with combustion air and fuel During vehicle working condition, cooling fan be may rely on from vehicle-mounted energy storage device (such as battery 426 (for example, 12V battery)) The power of supply.For the graphical representation of exemplary 400 described in Fig. 4, it shows control system 214 and scene or workshop 430, The scene includes physics cooling fan 92, and the scene and control system are separated by dotted line 401.

Control system 214 further includes controller 212, the first field effect transistor (FET) 405 and the 2nd FET 415.First FET 405 can be motivated only during key ON situation, and wherein therefore cooling fan 92 can be powered by battery 426.One In a little examples, rotate key with activate vehicle, remote starter is initiated via key chain or press activation on Vehicular instrument panel by Button can cause the first FET 405 to be enabled under the input 420 from controller 212 from battery 426 by excitation with defeated Voltage 440 powers to power supply cooling fan 92 out.Optionally, in response to key-off event, the first FET 405 can be deactivated It encourages, and the 2nd FET 415 can be motivated, so that solar panel 108 can carry out automatic control via charge controller 32 It is powered with output voltage 440 to cooling fan 92 under the input of device 212 processed.As discussed above, in some instances, it comes from The power of solar panel can come from solar battery (for example, 30).

The system and method being discussed herein may be particularly suitable for participating in the autonomous vehicle of Car sharing model.Therefore, turn To Fig. 5, it depicts the frame that can operate the exemplary autonomous driving system 500 of the Vehicular system 100 described in Fig. 1 above Figure.Herein, Vehicular system 100 will be called " vehicle " for short.As indicated, autonomous driving system 500 includes user interface device 510, navigation system 515 (for example, identical as 284), at least one autonomous driving sensor 520 and autonomous mode controller 525.

User interface device 510 can be configured as is in vehicle occupant under the situation wherein there may be vehicle occupant Existing information.However, it is to be appreciated that vehicle can the autonomous operation in the case where vehicle occupant is not present during certain situations. The information presented may include audible information or visual information.It is used in addition, user interface device 510 can be configured as reception Family input.Therefore, user interface device 510 can be located in the passenger compartment (not shown) of vehicle.In some possible methods, User interface device 510 may include touch-sensitive display panel.

Navigation system 515 can be configured as using such as global positioning system (GPS) receiver and determine working as vehicle Front position, the GPS receiver are configured as position of the triangulation vehicle relative to satellite or ground launch tower.Navigation system 515 can be additionally configured to form the route from current location to selected destination, and via such as user interface device 510 Simultaneously the drive route for leading to destination is presented in display map.

Autonomous driving sensor 520 may include any amount of dress for being configurable to generate the signal for helping navigation vehicle It sets.The example of autonomous driving sensor 520 may include radar sensor, laser radar sensor, inertial sensor, vision biography Sensor (for example, camera), ultrasonic sensor, infrared camera, vehicle are to vehicle infrastructure network etc..Autonomous driving sensor 520 can allow the vehicle to " seeing " road and vehicle-periphery, and/or get over when vehicle 100 is operated with autonomous mode Cross various barriers.Autonomous driving sensor 520, which can be configured as, is output to such as autonomous mode control for sensor signal Device 525.

Autonomous mode controller 525 can be configured as when vehicle is operated with autonomous mode via controller LAN 531 (being indicated by bilateral arrow) control one or more subsystems 530.The subsystem that can be controlled by autonomous mode controller 525 The example of system 530 may include brake subsystem, suspension subsystem, turn to subsystem and power drive system subsystem.Independently Mode controller 525 can be by controlling these subsystems 530 to control unit output signal associated with subsystem 530 Any one or more of.In one example, brake subsystem may include anti-lock braking subsystem, the anti-lock Brake subsystem is configured as applying retardation force to one or more wheels (for example, 160).In order to automatically control vehicle, Autonomous mode controller 525 can export order appropriate to subsystem 530.These order can make subsystem according to select Driving mode associated driving performance operate.For example, driving performance may include the positive journey that vehicle accelerates and slows down Degree, vehicle reserve how many space, frequency of autonomous vehicle lane change etc. behind front truck.

Therefore, a kind of system for hybrid vehicle, institute may be implemented above for Fig. 1 to Fig. 5 system described The system of stating includes: engine system；Cooling fan can be operated along first direction and second direction rotation；Cooling system, Including electronic coolant pump and including the electric thermostat apparatus of thermostatic valve；And Engine Coolant Temperature Sensor.Such system It may include controller, the controller has the computer-readable instruction being stored on non-transitory memory, the calculating Machine readable instruction makes the controller under vehicle close event when executed, and order starts the electronic coolant pump, swashs The electric thermostat apparatus living rotates the cooling fan up to when making a reservation for continue along the first direction to open the thermostatic valve Between and via the engine coolant temperature sensor record the first engine system temperatures rate of decay, then along described the Two directions rotate the cooling fan up to the predetermined lasting time and record the second engine system temperatures rate of decay.It is described Controller can store further instruction with by the first engine system temperatures rate of decay and second engine system System temperature damping's rate is compared.Controller can store further instruction by declining according to the first engine system temperatures Whether the rate of deceleration, which is faster than the second engine system temperatures rate of decay, rotates cooling fan for engine system along a direction It is cooled in the threshold value of environment temperature, vice versa.Controller can store further instruction in response to engine system quilt It is cooled in the threshold value of environment temperature and is diagnosed, the diagnosis is dependent on engine system static state and low noise conditions.

In the example of the system, the system can also include autonomous driving system, and controller can store Further instruction is to operate vehicle via the autonomous driving system of a part as Car sharing model.

In such systems, the system can also include grid blind system, and the grid blind system includes Grid shutter, and the controller can store further instruction and fully open the grid shutter in vehicle to order Cooling fan is rotated along both first direction and second direction under close event.

In such systems, the system can also include that can operate to convert solar radiation into the one of electric energy or more A solar battery cell 108, and the controller can store further instruction by via one or more sun Can the electric energy of battery unit supply operate electronic coolant pump, electric thermostat apparatus and cooling fan.

As by about being discussed in further detail the method that Fig. 8 describes into Fig. 9, vehicle control device may need below Learn usual travel route.The study of such route may determine whether to be possible under specific vehicle close event by along the One direction rather than second direction operation cooling fan quickly cools down engine system, vice versa.In other words, which Cooling fan direction of rotation leads to most fast engine system temperatures rate of decay.Therefore, it turning now to Fig. 6, shows and is used for Learn the high-level example method 600 of the usual drive route of vehicle drive.More specifically, method 600 can be used for learning leading to Normal drive route, and can be further used for study/prediction when compared with rotating in a second direction cooling fan along first party Which will lead to engine to vehicle closing situation when rotation along particular course more rapidly to cool down, vice versa.As one Example, vehicle can travel in particular course always in the morning, and wherein vehicle then stops as follows: when operation cools down The cooling of engine is most when fan is to push air to atmosphere (for example, cooling fan rotates in a second direction) from enging cabin Fast.In later time, vehicle can travel in particular course again, wherein it is known when vehicle is closed, it is cooled down in operation The cooling of engine system when fan is to pull to enging cabin (for example, cooling fan is rotated in a first direction) from atmosphere for air It is most fast.This type of information related with known route can store in the one or more lookups being stored in vehicle control device In table, and selection proper method can be used at least partially for most rapidly to cool down engine system under vehicle close event System.

Method 600 will be with reference to being described herein and the system shown in Fig. 1 to Fig. 5, but it is to be understood that is not departing from this In the case where scope of disclosure, similar approach can be adapted for other systems.Method 600 can be by controller (in such as Fig. 2 Controller 212) it executes, and can be used as executable instruction and be stored in non-transitory memory.It can be based on by controller The instruction that is stored on the memory of controller and combine from the sensor of engine system (such as above with reference to Fig. 1 to Fig. 2 and Fig. 5 description sensor) received signal come execute for execute method 600 instruction and herein include remaining method.Control Device processed can use the actuators such as cooling fan (for example, 92), electronic auxiliary pump (for example, 88), thermostat (for example, 38) To change the unit state in physical world according to method as described below.

Method 600 starts from 605, and may include indicating whether to indicate key ON event.Key ON event can To start vehicle including the use of firing key with engine start mode or pure electric vehicle operation mode.In other examples, key Spoon connection event may include the button ignition switch for example pressed on instrument board.Other examples may include key chain (or including intelligence Other remote-control devices of energy mobile phone, tablet computer etc.) with engine start mode or pure electric vehicle operation mode starting vehicle.Such as Fruit does not indicate key ON event at 605, then method 600 may be advanced to 610, and may include maintaining current vehicle behaviour Make parameter.For example, method 600 may include tieing up engine system, fuel system and evaporative emissions system component at 610 It holds in its present construction and/or current mode.Method 600 can then terminate.

Back to 605, in response to indicating key ON event, method 600 may be advanced to 615, and may include visiting Ask vehicle location, driver information, day of week (DOW), time of day (TOD) etc..The identity of driver is (if there is driving Member) it can be inputted by driver, or it is based on driving habit, seat position, driver's cabin climate controlling preference, voice-activated commands Etc. inferring.However, it is to be appreciated that driver or vehicle operators may be not present for autonomous vehicle.Vehicle location can be with It is accessed via onboard navigation system (such as via GPS) or other modes (such as being carried out wireless communication via with internet).

620 are proceeded to, method 600 may include the vehicle recorded during the driving cycle since key ON event Route information.Vehicle control device can be collected continuously from various sensing systems and external source about vehicle operating/situation, position It sets, the data of traffic information, local weather information etc..The data can be for example, by GPS (for example, 284), inertia sensing Device, ultrasonic sensor, laser, radar, sonar, acoustic sensor etc. (for example, 520) are collected.It can also be read from vehicle Other feedback signals, such as input from vehicle typical sensors.Illustrative sensors may include tire pressure sensor, Engine temperature sensing unit, braking heat sensor, brake(-holder) block state sensor, tire tread sensor, fuel sensor, oil Position and mass sensor, and the air quality sensor etc. for detecting temperature, humidity.Further, at 620, vehicle Controller can also retrieve various types of non-real-time datas, such as the information from detailed map, and the information can deposit It stores up in the controller or can wirelessly retrieve.

Therefore, it during the process that vehicle drives along particular vehicle drive route, can obtain about the particular course Or stroke vector data and store it in vehicle control device.Proceed to 625, method 600 may include processing data with Establish prediction/known drive route.It is for instance possible to obtain many stroke vector sum corresponding informations and storing it in vehicle In controller, allow to high accuracy realize prediction/known drive route.In some instances, vehicle can go Sail one or more route seldom travelled (for example, not " common itinerary ").It is, therefore, to be understood that can periodically forget Note or from vehicle control device remove with the not significant relevant route information of usual travel route, so as to prevent accumulation and vehicle row Sail the related excessive data of convention.

In some instances, it can be applied to be fed to one from the data that the vehicle driving convention for including GPS data is collected With the algorithm of the usual route or travel by vehicle of determination in a or multiple machine learning algorithms.

Learning drive route at 625 can include determining that vehicle is carried out at the end of particular course closes engine cool The specific drive route of operation, and which kind of result determination has (for example, cooling fan is cold the particular course cooling down operation Which rotated when but operating along direction).For example, learning drive route at 625 for the particular vehicle along the known route Close event may include following information: including the engine system when cooling fan is rotated in a first direction compared with second direction More rapidly, vice versa for the cooling of system.This type of information can with other information (such as current weather condition (including environment temperature, The existence or non-existence of rainfall (for example, rain, snow)), with may influence the structure of engine system cooling down operation result The degree of approach etc.) it is related.In this way, can with known particular vehicle close event whether may include when and second direction When being rotated in a first direction compared to cooling fan engine system cooling may faster (vice versa) probability be greater than threshold value.

630 are proceeded to, method 600 may include will be about the information storage of known drive route discussed to vehicle control In one or more look-up tables in device processed.Such look-up table, which can be at least partly used to indicate in vehicle close event, works as Cooling fan is along first direction rather than whether engine system is cooling it is possible that faster, vice versa when second direction rotates.

Depending on vehicle drive and the time of day that needs in vehicle close event fast engine cooling, may The case where in the presence of that can be activated (in either direction) to avoid cooling fan.Such example may include that the vehicle at night closes thing Part, wherein the natural cooling effect of daytime temperature circulation can effectively be quickly cooled down engine system and allow to taken Between diagnosed in range.By relying on such natural cooling effect, the power of battery can be saved.

Turning now to Fig. 7, the curve graph of the function of the solar energy intensity and temperature as time of day is shown in the daytime The graphical representation of exemplary of circulation 700.Incident solar radiation 702 starts to increase in sunrise 704, and just before sunset 706 Maximum value is risen to when near the noon.Therefore, when sunrise 704 indicates that nearby thermal enhancement circulation is in the same day of its maximum value Between, and sunset 706 indicates time of day of the heat loss circulation in its maximum value nearby.Correspondingly, environment temperature is shown Degree 708, the environment temperature 708 show that temperature is increased from the minimum temperature 710 near sunrise 704 and temperature is from sunset Maximum temperature 712 near 706 reduces.Therefore, if near sunset or post sunset heat loss recycles the instruction of maximum time Vehicle close event, then natural cooling effect can effectively be quickly cooled down engine system in the case where not operating cooling fan System, this can save vehicle-mounted energy storage.Optionally, during thermal enhancement circulation, solar panel (for example, 108) has can Enough energy can be provided to operate cooling fan, auxiliary pump, electric thermostat apparatus etc..

As discussed above, it is understood that there may be certain situations that vehicle stops as follows: operated with along first direction Cooling fan (pull-type cooling) is compared, and faster engine system can be led to by operating cooling fan (pushing-type is cooling) in a second direction System cooling.In some instances, such Parking situation may include known vehicle close event, and/or can via GPS, Inertial sensor, in-vehicle camera, one or more ultrasonic sensors, infrared camera (for example, for inferring surface temperature) etc. To indicate.Turning now to Fig. 8 A, the exemplary diagram 800 of one of such Parking situation is parked in inclination including wherein vehicle 100 Situation on 801 ground 805.In the case where vehicle 100 is parked in this way, when the front of vehicle 803 relative to When the rear portion 804 of vehicle tilts, heat of engine rises and flows to front 803 along the direction of arrow 802.If cooling fan (for example, 92) are rotated in a first direction, then hot-air can be pulled engine.Optionally, if cooling fan is along second party To rotation, then it can push hot-air to atmosphere from enging cabin, to effectively cool down enging cabin.

Turning now to Fig. 8 B, another graphical representation of exemplary 850 of Parking situation is shown, wherein the edge compared with first direction It may be more effective in terms of engine system cooling that second direction, which rotates cooling fan,.Specifically, vehicle 100 can be parked At making the deeper inside in parking structure 855 compared with rear end 804 of front end 803.In such example, the entrainment air 865 of delay It can be hotter than the air 870 at the rear portion 804 of vehicle.Therefore, by the way that heat of engine is discharged to the outside 875 and entrainment is discharged Air 865, with along first direction operate cooling fan (pull-type cooling) compared with, in a second direction operate cooling fan (pushing-type It is cooling) it can more effectively and rapidly cool down engine system.

As discussed above, vehicle control system (for example, 214) can via V2V, V2I2V (V2X) technologies broadcast and Receive the information about vehicle data, vehicle diagnostics, vehicle position information, vehicle operating program etc..Such technology can be at least It relies partially on and determines to be along first direction under vehicle close event or operation cooling fan can be quick in a second direction Cooling engine system.More specifically, turn to Fig. 9, show for determined using V2V/V2I2V technology in a second direction Operation cooling fan is compared along whether first direction operation cooling fan can cool down engine system (on the contrary also more quickly High-level example method 900 so).Method 900 can be executed by controller (controller 212 in such as Fig. 2), and can be with It is stored in non-transitory memory as executable instruction.It can be by controller based on the memory for being stored in controller It instructs and combines sensor (such as sensor above with reference to described in Fig. 1 to Fig. 2 and Fig. 5) received signal from Vehicular system To execute the instruction for executing method 900.

Method 900 starts from 901 and may include indicating whether to indicate vehicle close event.It can be via key-off Event deactivates Vehicular system etc. using key chain to indicate vehicle close event.If not indicating that vehicle closes thing at 901 Part, then method 900 may be advanced to 902.At 902, method 900 may include maintaining current vehicle operating condition.For example, if vehicle It is operated in the case where engine combustion air and fuel, then can maintain such vehicle operating.Method 900 can then be tied Beam.

Back to 901, if instruction vehicle close event, method 900 may be advanced to 905.At 905, method 900 It may include generating vehicle group via V2V/V2I2V technology.The vehicle group can be referred to as the vehicle group of selection, more vehicles, a team Vehicle, one group of vehicle etc..In order to generate vehicle group, the vehicle including vehicle close event (is referred to as vehicle in the illustrative methods ) can one into wireless communication or in the predetermined threshold distance or radius of vehicle or the transmission of more vehicles wirelessly ask It asks.Wireless request may include the request to the information from one or more vehicle, and whether the information includes and led It moves cooling down operation and utilizes the related data of which kind of method (for example, pushing-type cooling or pull-type cooling).This type of information can be with Including carry out active cooling operation time, carry out cooling down operation when weather condition, with may influence active cooling operation The engine before ground composition and/or surface temperature, active cooling operation during the degree of approach of structure, active cooling operation Runing time, fuel level, vehicle brand/type information, the existence or non-existence of the fuel system of sealing, fuel tank pressure number According to, fuel cell temperature data, engine system temperatures data etc..Can select for vehicle mass selection only includes that situation is similar (for example, class As vehicle brand/model, similar Parking condition, active cooling when similar weather conditions, similar ground composition/temperature Degree, carries out active cooling at the similar engine on time before carrying out active cooling operation, similar fuel system state Similar moment recycled in the daytime etc. of operation) one or more vehicles.Other vehicles can be excluded except vehicle group.

910 are proceeded to, method 900 may include from Che Qunzhong retrieval about the group which kind of method to carry out cooling down operation using Volume data.For example, being using pushing-type cooling or to use pull-type cooling.

Proceed to 915, method 900 may include processing colony data with provide most likely result in the most effective of vehicle and The high confidence level instruction of the cooling method of quick engine system.

920 are proceeded to, method 900 may include considering the population data to determine (pushing-type is cold using which kind of program But or pull-type cooling) efficiently and quickly cool down engine system.For example, population data can be in conjunction with described in Figure 10 Method 1100 that method 1000 and/or be incorporated in is described in Figure 11 uses.

Turning now to Figure 10, show for predict expectation along first direction operation cooling fan (pull-type cooling) rather than Operation cooling fan (pushing-type is cooling) will lead to the exemplary of faster cooling (vice versa) of engine system in a second direction The high level flow chart of method 1000.If operation cooling fan is general better than operation cooling fan in opposite direction in one direction Rate is greater than threshold value, then can be cooling via driving engine system is carried out along instruction direction operation cooling fan appropriate.It can Selection of land, if probability is not more than threshold value, method 1000 may be advanced to the method 1100 described in Figure 11.

Method 1000 will be with reference to being described herein and the system shown in Fig. 1 to Fig. 5, but it is to be understood that is not departing from In the case where the scope of the present disclosure, similar approach can be adapted for other systems.Method 1000 can be by controller (such as Fig. 2 In controller 212) execute, and can be used as executable instruction and be stored in non-transitory memory.It can be by controller (such as extremely above with reference to Fig. 1 based on the instruction on the memory for being stored in controller and in conjunction with the sensor from engine system Fig. 2 and Fig. 5 description sensor) received signal come execute for execute method 1000 instruction and herein include remaining side Method.Controller can according to method as described below using such as cooling fan (for example, 92), electronic auxiliary pump (for example, 88), The actuators such as thermostat (for example, 38).

Method 1000 starts at 1005, and may include assessment current working.Operating condition can be estimated, measure and/ Or infer, and may include that one or more vehicle conditions (speed, vehicle location etc.), various engine conditions are (all Such as engine condition, engine loading, engine speed, air-fuel ratio), various fuel system situations (such as fuel level, combustion Expect type, fuel temperature etc.), various evaporative emissions system situations (load of fuel vapo(u)r filter tank, fuel tank pressure etc.) with And various environmental aspects (environment temperature, humidity, atmospheric pressure etc.).1010 are proceeded to, method 1000 may include instruction Whether vehicle close event is detected.Vehicle is closed situation and can be parked by key-off event, user leaving Vehicle alert is set after vehicle, and vehicle closing situation is initiated via key chain or is approximately equivalent to key-off in autonomous vehicle Other suitable indicators in the case where event indicate.If vehicle, which is not detected, closes situation, method 1000 is advanced To 1015.At 1015, method 1000 includes maintaining current vehicle operating condition.For example, if vehicle in engine combustion air and It is operated in the case where fuel, then can maintain such vehicle operating.Method 1000 can then terminate.

Back to 1010, if detecting that vehicle closes situation, method 1000 proceeds to 1020.At 1020, method 1000 include indicating whether to meet to carry out the cooling condition of driving engine for the operation via cooling fan (for example, 92). Meeting the condition cooling for driving engine may include the instruction that vehicle is just participating in Car sharing model.The item met Part can additionally or alternatively include in the thermal enhancement part recycled in the daytime rather than send out during the heat loss part recycled in the daytime Raw vehicle closes the instruction of situation.The condition met can additionally or alternatively include during vehicle close event request according to Rely in the instruction of the diagnosis of engine system static state and low noise conditions.The condition met can additionally or alternatively include such as Lower instruction: if request diagnosis, predicts that the time duration of vehicle close event may be sufficient to make and be able to respond in hair Motivation system is effectively cooled and is diagnosed.Such instruction can be provided via for example known route (referring to Fig. 6), or In some instances, timetable can be stored in the controller and as a part of Car sharing model continually more Newly.The condition met at 1020 can additionally or alternatively include following instruction: the level of vehicle-mounted energy storage device is big In the threshold quantity cooling for driving engine, it is cooling for driving engine that there are the energy of enough solar energy forms, or Person's Vehicular system is inserted into power grid.The condition met at 1020 can additionally or alternatively include engine in vehicle close event The instruction operated in driving cycle shortly before.

If not indicating the condition for meeting the active cooling for engine system, method 1000 be may be advanced to 1025, wherein controller can enter dormant state, and can update for carrying out the diagnosis dependent on low noise conditions Timetable.In one example, it is closed in response to vehicle occurs at 1020 because during the heat loss part recycled in the daytime Event and do not indicate to meet condition, can be arranged in prediction engine system by the threshold value for being cooled to environment temperature (for example, Within 12 ℉ of environment temperature) specified time diagnosed.It is vaporous that such prediction may rely on current and prediction day Condition (for example, temperature, rainfall, wind in the presence/absence of etc.), present engine system temperature, fuel level, fuel temperature etc.. In such example, controller can be arranged at the appointed time to wake up to be diagnosed, on condition that vehicle is not at the appointed time It reactivates and is operated before.

Optionally, at 1025, the cooling condition of driving engine is used for and in the daytime wherein meeting without instruction In the example that vehicle close event occurs during the thermal enhancement part of circulation, updating the timetable for being diagnosed may include It is used for the diagnosis of vehicle close event next time.Method 1000 can then terminate.

Back to 1020, in response to meeting the condition cooling for driving engine, method 1000 may be advanced to 1030. At 1030, method 1000 may include indicating that pull-type cooling (operating cooling fan along first direction) or pushing-type are cooling (along the Two direction operation cooling fans) one of be predicted to be and more have in terms of fast and effeciently cooling down engine system than another one Whether the probability of effect is greater than threshold value.As discussed above, such instruction can based on vehicle close event whether include and habit The corresponding vehicle close event of route (referring to Fig. 6) is known, wherein known cooling for engine system over time A kind of method will probability more more effective than another method it is very high.Via the method described in Fig. 9 is used, such instruction can It is communicated with being additionally or alternatively based on V2V/V2I2V.Such instruction can be additionally or alternatively based on for example via GPS, inertia The Parking condition of the instructions such as sensor, ultrasonic sensor, in-vehicle camera, infrared camera.For example, such as above for Fig. 8 A to figure What 8B was discussed, if vehicle close event include vehicle parking on the slope, cooling (the operation cooling in a second direction of pushing-type Fan) it is cooling for fast engine possible more effective.In another example, if vehicle close event includes that vehicle is stopped Putting into its front end has the aeriferous inside configuration of folder, then pushes cooling that can be quickly cooled down hair by discharge entrainment air Motivation system.

If being not more than threshold value using a kind of probability of cooling means compared with another cooling means, then at 1030 Method 1000 can carry out active cooling according to method 1100 depicted in figure 11.Optionally, if using a kind of cooling Probability of the method compared with another cooling means is greater than threshold value, then method 1000 may be advanced to 1035.At 1035, method 1000 may include activating electronic auxiliary pump (for example, 88) and electric actuation thermostat (for example, 38) is to allow coolant to flow through Thermostat (in other words, electronically opens thermostat valve).1040 are proceeded to, method 1000 may include along appropriate direction Rotation/rotation cooling fan.For example, if at 1030 instruction be rotated in a first direction cooling fan will will lead to it is the fastest The probability of engine cool is greater than threshold value, then at 1040, cooling fan can be rotated in a first direction.Optionally, if At 1030 instruction rotate in a second direction cooling fan will lead to most fast engine cool probability be greater than threshold value, then 1040 Place, cooling fan can rotate in a second direction.

At 1040, rotating cooling fan along appropriate direction may include rotating cooling at a predetermined velocity in some instances Fan.In other examples, cooling fan rotation speed can be engine temperature, vehicle be activated again operated before it is pre- The driving cycle product of surveying, known or scheduled time, fuel temperature, driving cycle shortly before vehicle close event Polarity, the level of vehicle-mounted energy storage device or can be via the function of the obtainable quantity of power of the sun.In some instances, cooling The revolving speed of fan can be related to for engine system to be cooled to the required duration in the threshold value of environment temperature.This Outside, although not explicitly shown, it will be appreciated that order grid shutter can be fully opened so that cooling fan at 1040 It is rotated along appropriate direction.

In the case where cooling fan rotation, method 1000 may be advanced to 1045.At 1045, method 1000 includes referring to Show engine coolant temperature whether in the threshold value of environment temperature (for example, within 12 ℉).If it is not, then method 1000 can To return to 1040, wherein cooling fan can maintain to rotate along appropriate direction.Optionally, in response to engine coolant temperature It is indicated in the threshold value of environment temperature, method 1000 may be advanced to 1050.At 1050, method 1000 may include interrupting Cooling fan rotation.In other words, can order cooling fan stopping rotated along appropriate direction.1055 are proceeded to, method 1000 It may include deactivating auxiliary pump and deactivating thermostat (for example, 38) (in other words, thermostatic valve control is configured to closing).

In the case where in engine cool to threshold value, 1060 are proceeded to, method 1000 may include carrying out via control The particular diagnosis dependent on engine system static state low noise conditions of device request.As an example, if diagnosis includes using In the evaporative emissions system test presence or absence of non-required discharge vaporization, then as discussed, pump (example can be used Such as, 295) evaporative emissions system is emptied to be tested.Although discharge vaporization testing and diagnosing is provided as an example, can be with Understand, any diagnosis dependent on engine system static state and low noise conditions can be carried out at 1060, on condition that in the presence of into The request of the such diagnosis of row.

It is stored in controller it is appreciated that carrying out any such diagnosis at 1060 and may rely on as nonvolatile Another method or submethod of instruction in property memory.

In response to the particular diagnosis carried out, vehicle operating parameter can be updated according to diagnostic result.For example, if via There are non-required discharge vaporizations for diagnosis instruction, then malfunction indicator lamp can be lighted at Vehicular instrument panel, alert vehicle drive The request that member repairs vehicle.Method 1000 can then terminate.

Turning now to Figure 11, show for being carried out via cooling fan is rotated along both first direction and second direction Driving engine system cooling down operation is shown with the advanced of most rapid rate for determining which direction of rotation causes engine system cooling Example property method 1100.Method 1100 will be with reference to being described herein and the system shown in Fig. 1 to Fig. 5, but it is to be understood that not In the case where being detached from the scope of the present disclosure, similar approach can be adapted for other systems.Method 1100 can be by controller (such as Controller 212 in Fig. 2) it executes, and can be used as executable instruction and be stored in non-transitory memory.It can be by controlling Device is based on the instruction on the memory for being stored in controller and combines the sensor from engine system (such as above with reference to Fig. 1 The sensor described to Fig. 2 and Fig. 5) received signal come execute instruction for executing method 1100 and herein include remaining Method.Controller can according to method as described below using such as cooling fan (for example, 92), electronic auxiliary pump (for example, Etc. 88) actuators change the physical states of one or more devices in the real world.

Method 1100 continues from step 1030, and is included at 1105 and activates auxiliary pump (for example, 88) and electrically activate electricity Sub- thermostat (for example, 38).Proceed to 1110, method 1100 include be rotated in a first direction cooling fan up to first continue when Between.The duration may include the time quantum that can determine engine system cooling rate.As an example, described to hold The continuous time may include less than 5 seconds, 5 seconds, 10 seconds, 15 seconds, 20 seconds, be greater than 20 seconds but less than 40 seconds, be greater than 40 seconds but less than 1 point Clock etc..Proceed to 1115, method 1100 include when cooling fan is rotated in a first direction periodically (such as once per second, Every five seconds clock one is inferior) obtain engine coolant temperature measured value.In this way, it can determine cold with engine system Corresponding first engine coolant temperature rate of decay.

1120 are proceeded to, expire in response to the first duration and has been determined that the decaying of the first engine coolant temperature is fast Rate, method 1100 may include rotating in a second direction cooling fan up to the second duration.It although not explicitly shown, but can To understand, it is being rotated in a first direction cooling fan and is rotating in a second direction between cooling fan, cooling can be deactivated first Fan.When cooling fan be rotated in a first direction cooling fan and rotate in a second direction between cooling fan deactivate when, it is auxiliary Help pump (for example, 88) that can maintain to activate together with electronically actuated thermostat (for example, 38).It was appreciated that for the first duration It may include the duration identical with the second duration.Furthermore, it is to be understood that turn that cooling fan is rotated in a first direction Speed can be identical as the revolving speed rotated in a second direction.For example, such speed may include predetermined speed.

When activating cooling fan at 1120 to rotate in a second direction, method 1100 proceeds to 1125, and can wrap Include the second engine coolant temperature rate of decay of monitoring.Can by with such as above for step 1115 discussed first hair The identical mode of motivation coolant temperature rate of decay determines the second engine coolant temperature rate of decay.

In response to the second engine coolant temperature rate of decay determined at 1125, method 1100 be may be advanced to 1130.At 1130, method 1100 may include via controller by the first engine coolant temperature rate of decay and second Engine coolant temperature rate of decay is compared.By the first engine coolant temperature rate of decay and second at 1130 It may include indicating which engine coolant temperature rate of decay is bigger that engine coolant temperature rate of decay, which is compared, Or faster.

1135 are proceeded to, method 1100 may include which cooling fan direction of rotation causing faster engine cold according to But agent temperature damping rate rotates cooling fan.For example, if cooling fan first along first direction then in a second direction Rotation indicates the first engine coolant temperature to determine the first and second engine coolant temperature rates of decay respectively Rate of decay is most fast, then at 1135, method 1100 may include stopping rotating in a second direction cooling fan, and start edge First direction rotates cooling fan.Optionally, if then cooling fan is rotated in a second direction along first direction to divide first Not Que Ding the first and second engine coolant temperature rates of decay, and indicate the second engine coolant temperature rate of decay Most fast, then at 1135, cooling fan of engine can continue to rotate in a second direction.Although method 1100 is depicted as first It is rotated in a first direction cooling fan and then rotates in a second direction cooling fan, it will be appreciated that not departing from the disclosure Range in the case where, cooling fan can be rotated in a second direction and then be rotated in a first direction first.

1140 are proceeded to, method 1100 may include monitoring engine coolant temperature.1145 are proceeded to, method 1100 can To include instruction engine coolant temperature whether in the threshold value of environment temperature (for example, within 12 ℉ of environment temperature). If it is not, then method 1100 may return to 1135, wherein cooling fan can continue along being instructed to cause most fast engine The direction of coolant temperature rate of decay rotates.Optionally, if engine coolant temperature is indicated on environment at 1145 In the threshold value of temperature, then method 1100 may be advanced to 1150.At 1150, method 1100 may include interrupting cooling fan rotation Turn.In other words, controller can send signal to the actuator of cooling fan, and the cooling fan is activated and is closed.Advance To 1155, method 1100 may include deactivating auxiliary pump (for example, 88) and deactivating electronically actuated thermostatic valve (for example, 38).

In the case where in engine cool to threshold value, 1160 are proceeded to, method 1100 may include carrying out via control The particular diagnosis dependent on engine system static state low noise conditions of device request.As an example, if diagnosis includes using In the evaporative emissions system test presence or absence of non-required discharge vaporization, then as discussed, pump (example can be used Such as, 295) evaporative emissions system is emptied to be tested.Although discharge vaporization testing and diagnosing is provided as an example, can be with Understand, any diagnosis dependent on engine system static state and low noise conditions can be carried out at 1160, on condition that in the presence of into The request of the such diagnosis of row.

It is stored in controller it is appreciated that carrying out any such diagnosis at 1160 and may rely on as nonvolatile Another method or submethod of instruction in property memory.

In response to the particular diagnosis carried out, vehicle operating parameter can be updated according to diagnostic result.For example, if via There are non-required discharge vaporizations for diagnosis instruction, then malfunction indicator lamp can be lighted at Vehicular instrument panel, alert vehicle drive The request that member repairs vehicle.Method 1100 can then terminate.

Although not being explicitly illustrated in method 1100, it will be appreciated that cooling fan is swashed in either direction wherein In step living, it can order and fully open grid shutter (for example, 174).

In addition, although not being explicitly illustrated in method 1100, in some instances in step 1030 and step 1105 Between may exist multiple steps, the multiple step can include determining that compared with second direction whether engine cool has can Can be when cooling fan be rotated in a first direction faster, vice versa.It is appreciated that can be when pushing-type cooling or pull-type cooling Indicate such possibility (referring to step 1030) under conditions of when will lead to the probability most cooled down fastly no more than threshold value.Therefore, turn To Figure 12, such additional step is indicated as a part of method 1000a at step 1032 and 1034.Specifically, if The probability is not more than the threshold value at 1030, then the method may be advanced to 1032 and may include instruction with along the Two directions rotate cooling fan compared to whether being possible to be rotated in a first direction cooling fan and will lead to faster engine system Cooling, vice versa.Similar to for described in step 1030, the instruction at step 1032 place can be based on the next item down or more : whether vehicle close event includes vehicle close event corresponding with known route, based on describing in Fig. 9 via using Method carry out V2V/V2I2V communication, based on such as via GPS, inertial sensor, ultrasonic sensor, in-vehicle camera The vehicle parking condition of instruction.In other words, the confidence level in one or more above methods may be not enough to by with one Direction, which is compared, rotates cooling fan along another direction to start engine cool, but still is possible to: with a side Engine can be quickly cooled down via along another direction rotary engine to comparing.

Due to the fact that such instruction may be useful, that is, if instruction is possible to along second at step 1032 Direction, which rotates cooling fan and will lead to, has faster engine cool than rotating cooling fan along first direction, then can carry out Method 1100, wherein then cooling fan is rotated in a second direction along first direction first, is allowed in response to along second party Lead to the instruction (via method 1100) of most fast engine cool to rotation cooling fan and maintains cooling wind in a second direction Fan rotation.It in other words, can be to avoid the additional switching on cooling fan direction of rotation.Which does not indicate above-mentioned example and wherein The case where a cooling fan direction of rotation is more likely to result in faster engine cool is compared.If cooling fan edge first First direction rotation, then rotates in a second direction, and indicate that cooling fan is rotated in a first direction and will lead to faster hair Motivation is cooling, then cooling fan direction of rotation must switch back into first direction again to be cooled down, and uses so as to cause additional Energy.

Therefore, 1034 are proceeded to, the method may include arrange cooling fan edge to be first likely to result in most fast hair The direction of motivation cooling rate rotates, and then rotates along the direction for being likely to result in most fast engine cool rate.Such arrangement May include at method 1100 update step 1110 and 1120 with reflection wish first along which direction rotate cooling fan with Which and subsequently desire to direction to rotate cooling fan along.

Therefore, a kind of method is included under vehicle close event via based on the engine system temperatures compared with second direction Whether rate of decay indicates faster to select to be along described first under conditions of wherein cooling fan is rotated in a first direction Direction still rotates the cooling fan along the second direction to cool down the engine system of vehicle, and vice versa, and responds It is diagnosed in the cooling.

In such method, it may include in response to the engine system that the diagnosis is carried out in response to the cooling It is cooled in the threshold temperature of environment temperature and carries out the diagnosis.

In such method, the vehicle can just participate in Car sharing model.The vehicle can carry out autonomous vehicle Operation.The diagnosis may rely on low noise static state engine system condition.

In such method, the instruction can be based at least partially on the known letter about the vehicle close event Breath.

In such method, the instruction can be based at least partially on the one or more under the vehicle close event Parking condition, one or more of Parking conditions include with influence which cooling fan direction of rotation will will lead to it is described faster Engine system temperatures rate of decay structure the degree of approach and/or the vehicle whether parked with tilt angle so that described The front end of vehicle is located at height above sea level more higher than the rear end of the vehicle.

In such method, the vehicle for indicating to be based at least partially under the vehicle close event is logical to vehicle Letter, wherein wirelessly obtaining from the vehicle group in the preset distance of the vehicle about being along the first direction or along described the Two directions, which rotate the cooling fan, will will lead to the data of the faster engine system rate of decay.

In such method, the instruction can be based at least partially on the first engine coolant temperature rate of decay and Second engine coolant temperature rate of decay, the first and second engine coolant temperatures rate of decay is via described The cooling fan is rotated up to predetermined lasting time and along the second party along the first direction respectively under vehicle close event It is measured to the cooling fan is rotated up to the predetermined lasting time.

Another example of method, which is included in, is rotated in a first direction cooling fan with described colder than rotating in a second direction But the cooling fan is rotated along the first direction during the condition of the cooling engine of the faster rate of fan, and along institute It states second direction and rotates the cooling fan than rotating the cooling fan faster rate cooling institute along the first direction The cooling fan is rotated along the second direction during stating the condition of engine.

In an example of the method, rotating the cooling fan along the first direction or the second direction can Based on the engine described compared with the second direction cooling fan will be rotated come faster via along the first direction Whether the cooling probability in ground is greater than threshold value, and vice versa.In such method, the method can also include when the probability is small When the threshold value, the second engine coolant temperature of the first engine coolant temperature rate of decay and measurement based on measurement It spends rate of decay and rotates the cooling fan along one of the first direction or second direction, and wherein can be via edge The first direction rotates the cooling fan up to predetermined lasting time to measure the first engine coolant temperature decaying Rate, and wherein the cooling fan can be rotated up to the predetermined lasting time to measure via along the second direction State the second engine coolant temperature rate of decay.In such method, the probability can be based on following one or more: practise Know information, be instructed to influence with the second direction compared with engine cool via along the first direction rotation cooling wind Fan whether can faster (vice versa) one or more Parking conditions and/or vehicle to vehicle communication, in the vehicle to vehicle Obtained in communication about with the second direction compared with engine cool via along the first direction rotation cooling wind Fan whether can faster (vice versa) data.

The cooling in such method, for rotating the cooling fan along the first direction or second direction The revolving speed of fan can change according to following one or more: engine temperature, the vehicle fuel system temperature and/ Or it is described by the requested duration in the threshold value of engine cool to environment temperature.

In such method, rotating the cooling fan along the second direction can be from the radiator of the vehicle Except dust and clast.

In such method, the vehicle may include the vehicle for capableing of autonomous operation, and the vehicle can just join With Car sharing model.

Turning now to Figure 13, show for carrying out driving engine system according to the method described in Figure 10 into Figure 12 The exemplary time line 1300 of cooling down operation.Timeline 1300 includes: curve 1305, indicates whether to indicate key-off (vehicle Close) event (yes/no)；Curve 1310 indicates whether that the condition for meeting the active cooling for engine system (is Or no)；Curve 1315 indicates the state of electronic supplement heat rejecter agent pump (for example, 88) (electrical coolant pump)；And become at any time The curve 1320 of change indicates electromic thermostat (for example, 38) state (opening or closing).Timeline 1300 further includes at any time The curve 1325 of variation indicates the mode of operation of cooling fan (for example, 92).Cooling fan can close, or along first Direction or second direction rotation.Timeline 1300 further includes the curve 1330 changed over time, indicates engine coolant temperature It spends (ECT).Timeline 1300 further includes the curve 1335 changed over time, indicates whether to meet and start for depend on The condition of the onboard diagnostics (OBD) of machine static system and low noise conditions.

In time t0, key-off event (curve 1305) is not indicated, and is unsatisfactory for cold for driving engine system But condition (curve 1310).Electron assistant pumps (for example, 88) and closes (curve 1315), and electromic thermostat closes (curve 1320) (thermostatic valve closing), and cooling fan operates (curve 1325) via being rotated in a first direction.In other words, vehicle when Between t0 be in operation in.Engine coolant temperature be in the consistent temperature of power operation (curve 1330), and not yet Meet the condition (curve 1335) for carrying out the onboard diagnostics dependent on static low noise conditions.

It in time t1, indicates key-off event (curve 1305), and cooling fan is deactivated (curve 1325).When Between t2, instruction meets the condition (curve 1310) cooling for driving engine system.Such condition is described in detail above.Letter For it, the condition met may include carrying out the request of the diagnosis dependent on static low noise conditions, but vehicle is just joined Make with Car sharing model in order to realize static low noise conditions, engine system is dependent on active cooling so as in vehicle Close situation time range in diagnosed.Illustrate although being not known, the item of active cooling is used in response to meeting The instruction of part indicates that pull-type cooling (operating cooling fan along first direction) or pushing-type cooling (operate cooling wind in a second direction Fan) one of be predicted to be fast and effeciently cool down engine system in terms of probability more more effective than another one whether be greater than Threshold value is (with reference to the step 1030) of method 1000.In this example, it will be understood that the probability is not more than the threshold value, but Via the method 1000a described in Figure 12, instruction, which is possible to rotate in a second direction cooling fan, will lead to most fast start Machine system cooling rate.Therefore, the method 1100 described in Figure 11 be updated so that cooling fan along first direction then along the Two directions rotate, to determine which direction of rotation leads to most fast engine system cooling rate.In this way, described Diagnosis can be partial to make cooling fan is rotated along direction needed for engine cool which direction determined when completing diagnosis Lead to most fast engine system cooling rate.

In the case where meeting condition at time t2, in time t3, auxiliary pump (for example, 88) (curve 1315) is activated, And electromic thermostat (for example, 38) (curve 1320) is activated (thermostatic valve opening).In time t4, cooling fan be activated with It is rotated in a first direction (curve 1325).In the case where cooling fan is activated to be rotated in a first direction, engine is monitored Coolant temperature reaches the first duration indicated by line 1331 (including in time t4 to the duration between t5).Via prison Engine coolant temperature is controlled up to the first duration, recording the first engine coolant temperature reduces rate and store it in In controller.

In time t5, cooling fan is deactivated, and in time t6, cooling fan is reactivated to revolve in a second direction Turn.It is appreciated that the speed phase that the speed that cooling fan is rotated in a first direction can be rotated in a second direction with cooling fan Together.Cooling fan rotate in a second direction up to indicated by line 1332 the second duration (including in time t6 between t7 Duration).It is appreciated that may include identical as the duration indicated by line 1332 by the duration that line 1331 indicates Duration.In the case where cooling fan is activated to rotate in a second direction, monitoring engine coolant temperature is up to the Two duration.Via monitoring engine coolant temperature up to the second duration, the second engine coolant temperature drop is recorded Low rate simultaneously stores it in controller.

In time t7, the first engine coolant temperature, which is reduced rate and the second engine coolant temperature, reduces rate It is compared.In the exemplary time line, engine coolant temperature fall off rate is during the second duration than the It is bigger during one duration.In other words, compared with when cooling fan is operated along first direction, when cooling fan is along second party To when rotation, engine cool is more rapidly and effectively.

Therefore, cooling fan is rotated in a second direction in time t7 to maintenance between t8, rather than must be switched again cold But fan rotates, so that engine system to be cooled in the threshold value of environment temperature.In time t8, engine coolant temperature becomes Threshold value for the environment temperature indicated by dotted line 1333.It is no longer full since engine system is by effectively active cooling Condition (curve 1310) of the foot for the active cooling of engine system, therefore, cooling fan is deactivated (curve 1325), electronics Thermostat is deactivated (curve 1320), and auxiliary pump is deactivated (curve 1315).In addition, instruction, which meets, to be used in time t8 Request the condition of diagnosis, the diagnosis is diagnosed dependent on static noise-free environment.Although not explicitly shown, It will be appreciated that after time t 8, in the case where vehicle is still in key-off situation, particular diagnosis can be carried out.

In this way, for autonomous vehicle or any other vehicle operated in Car sharing model, Ke Yi Engine system is quickly cooled down in the case where not needing to grow very much the downtime of (for example, 6 to 8 hours) to carry out dependent on quiet The diagnosis of state noise free conditions.By rapid cooling engine system, such diagnosis can be carried out before vehicle operates again, This can be improved the completion rate of the diagnosis and reduces the problem related to deterioration.

Technical effect is to recognize that in some instances when cooling fan operates (pull-type cooling) Shi Fadong along first direction The cooling of machine system can faster, and in other examples, when cooling fan operates (pushing-type is cooling) in a second direction, engine System cooling can be faster.Therefore, technical effect is to recognize that, in order to indicate which direction closes situation for specific vehicle May be more effective, then cooling fan can be rotated along another direction in one direction first, to compare in both situations The cooling rate of lower engine system.When determining which cooling fan direction of rotation is most effective or most efficient, then cooling wind Fan can continue to be operated in the direction to be quickly cooled down engine system.

Another technical effect is to recognize that, may have an opportunity to predict or learn specific vehicle close event can with Second direction compares that carry out more rapidly engine system cooling associated via cooling fan is rotated in a first direction, otherwise also So.Another technical effect is to recognize that in some cases, can use the V2V/V2I2V communication technology to indicate along a side It is more cooling than along the faster engine system of another direction operation cooling fan to whether operation cooling fan is likely to result in. Another technical effect is to recognize that the onboard sensor of GPS, ultrasonic sensor (for example, parking sensor) etc. can be with It is used to indicate specific vehicle and closes situation and whether to rotate cooling fan in one direction and be likely to result in than along Xiang Fanfang It is cooling to the faster engine system of rotation cooling fan.

In another expression, a kind of method includes: to carry out the diagnostic test phase during the first engine-off condition Between or very recently, along advance or first direction rotate cooling fan；During the second engine-off condition, diagnosed During test or very recently, cooling fan is rotated along opposite or second direction；And during third engine-off condition, During carrying out diagnostic test or very recently, cooling fan is rotated along both advance and opposite direction.

As an example, the first engine-off condition may include surface temperature be higher than first threshold temperature make by Air is drawn into the instruction that can be used for being quickly cooled down engine system in enging cabin.Surface temperature can for example by via Be configured as recognizing and indicate ground composition whether include pitch rather than concrete, soil, grass, sand etc. another The in-vehicle camera on surface and/or infer via the infrared camera for being positioned such that can to obtain accurate surface temperature estimated value Ground is constituted to indicate.In some instances, ground can be constituted and is compared with environment temperature based on the ground after deduction Face constitutes with environment temperature the temperature for inferring ground.

In another example, the second engine-off condition may include the finger that surface temperature is lower than second threshold temperature Show, second threshold temperature predetermined amount lower than first threshold temperature.

In another example, third engine-off condition may include that surface temperature is higher than second threshold temperature but small In the instruction of first threshold temperature.

In another example, the first engine-off condition may include with how it is most effective and rapid cooling engine The instruction of system relevant population data will be most effective and rapidly cool down engine system along direction of advance rotation cooling fan Instruction.

In another example, the second engine-off condition may include with how it is most effective and rapid cooling engine System relevant population data instruction rotates in mutually opposite directions cooling fan will be most effective and rapidly cool down engine system Instruction.

In another example, third engine-off condition may include with how it is most effective and rapidly cooling start The instruction of the relevant population data of machine system and indecisive conclusion (for example, confidence level is lower than predetermined confidence level).

In another example, the first engine-off condition may include the instruction of vehicle parking on the sloped surface, Wherein the rear end of vehicle increases compared with front end.

In another example, the second engine-off condition may include the instruction of vehicle parking on the sloped surface, Wherein the front and rear end of vehicle is compared to raising.

In another example, third engine-off condition may include vehicle parking on flat surfaces (not tilting) Instruction.

In another example, the first engine-off condition may include rear end and front end phase of the vehicle parking at vehicle Than the finger of the deeper inside (in other words, front and rear end is compared to the outside air for being more exposed to surrounding) in parking structures Show.

In another example, the second engine-off condition may include front and rear end phase of the vehicle parking at vehicle Than the finger of the deeper inside (in other words, the outside air that rear end is more exposed to surrounding compared with front end) in parking structures Show.

In another example, the first and second engine-off conditions can include that vehicle stops in the case where there Instruction: including known Parking, instruction is along direction of advance rotation cooling fan (for the first situation) or along Xiang Fanfang It will will lead to for specific known Parking to rotation cooling fan (for the second situation) in the presence of most fast and most effective The cooling probability of engine system is greater than threshold value, and it is not including known that third engine-off condition, which may include vehicle, The instruction that Parking and/or probability stop in the case where being less than threshold value.

In another example, the first engine-off condition includes along direction of advance rotation cooling fan without edge first Other one or more directions rotate cooling fan, wherein the second engine-off condition includes rotating in mutually opposite directions cooling wind Fan is without along one or more, other directions rotate cooling fan first.

One or more systems and one or more methods may be implemented in the system and method being discussed herein.In an example In, a kind of method be included under vehicle close event via based on compared with second direction engine system temperatures rate of decay be The no instruction faster under conditions of wherein cooling fan is rotated in a first direction is to select along the first direction or edge The second direction rotates the cooling fan to cool down the engine system of vehicle, and vice versa, and in response to the cooling And it is diagnosed.In first example of the method, the method also includes: it is wherein carried out in response to the cooling described Diagnosis includes being cooled in the threshold temperature of environment temperature in response to the engine system and carrying out the diagnosis.The side Second example of method optionally includes first example, and further include wherein the vehicle just participating in Car sharing model. The third example of the method optionally includes any one of described first and second example or more persons or each, and also Autonomous vehicle operation is able to carry out including the wherein vehicle.4th example of the method optionally includes described first to Any one of three examples or more persons or each, and further include the wherein diagnosis dependent on low noise static state engine system System condition.5th example of the method optionally includes any one of described first to fourth example or more persons or each Person, and further include that the wherein instruction is based at least partially on the known information about the vehicle close event.The side 6th example of method optionally includes any one of the described first to the 5th example or more persons or each, and further includes it Described in indicate one or more Parking conditions for being based at least partially under the vehicle close event, it is one or more of Parking condition includes and influences which cooling fan direction of rotation will will lead to the faster engine system temperatures decaying speed Whether the degree of approach of the structure of rate and/or the vehicle are parked with tilt angle so that the front end of the vehicle is located at than the vehicle The higher height above sea level in rear end.7th example of the method optionally include any one of the described first to the 6th example or More persons or each, and further include wherein described indicating the vehicle that is based at least partially under the vehicle close event to vehicle Communication, wherein wirelessly obtaining from the vehicle group in the preset distance of the vehicle about being along the first direction or along institute It states second direction and rotates the cooling fan and will will lead to the data of the faster engine system rate of decay.The method The 8th example optionally include any one of the described first to the 7th example or more persons or each, and further include wherein The instruction is based at least partially on the first engine coolant temperature rate of decay and the decaying of the second engine coolant temperature Rate, the first and second engine coolant temperatures rate of decay via under the vehicle close event respectively along described First direction rotates the cooling fan and rotates the cooling fan described in up to predetermined lasting time and along the second direction Predetermined lasting time measures.

Another example of vehicle cooling means, which is included in, is rotated in a first direction cooling fan than revolving in a second direction The cooling fan is rotated along the first direction during turning the condition of the cooling engine of the faster rate of the cooling fan, with And the cooling fan is being rotated than rotating the faster speed of the cooling fan along the first direction along the second direction The cooling fan is rotated along the second direction during the condition of the cooling engine of rate.In first example of the method In, the method also includes wherein rotating the cooling fan along the first direction or the second direction to be based on and described the Two directions will be via the probability for rotating the cooling fan along the first direction quickly to cool down compared to the engine No to be greater than threshold value, vice versa.Second example of the method optionally includes first example, and further includes when described When probability is less than the threshold value, the second engine of the first engine coolant temperature rate of decay and measurement based on measurement is cold But agent temperature damping rate rotates the cooling fan along one of the first direction or second direction；And wherein via The cooling fan is rotated along the first direction to decline up to predetermined lasting time to measure first engine coolant temperature The rate of deceleration, and it is wherein described to measure up to the predetermined lasting time via the cooling fan is rotated along the second direction Second engine coolant temperature rate of decay.The third example of the method optionally includes in first and second example Any one or more persons or each, and further include wherein the probability be based on it is following one or more: known information is referred to Show influence engine cool compared with the second direction rotates the cooling fan whether can be more via along the first direction One or more Parking conditions and/or vehicle of (vice versa) are to vehicle communication fastly, in the vehicle to obtaining in vehicle communication Take about compared with the second direction engine cool via along the first direction rotate the cooling fan whether can be more The data of (vice versa) fastly.4th example of the method optionally include described first to any one of third example or More persons or each, and further include wherein for making the cooling fan along the first direction or the institute of second direction rotation The revolving speed for stating cooling fan can change according to following one or more: engine temperature, the vehicle fuel system temperature It spends and/or described by the requested duration in the threshold value of engine cool to environment temperature.5th example of the method Any one of described first to fourth example or more persons or each are optionally included, and further includes wherein along described second Direction rotates the cooling fan and removes dust and clast from the radiator of the vehicle.6th example of the method is optionally Including any one of the described first to the 5th example or more persons or each, and further include wherein the vehicle include can The vehicle of autonomous operation；And wherein the vehicle is just participating in Car sharing model.

A kind of system for hybrid vehicle includes: engine system；Cooling fan can be operated along first party It is rotated to second direction；Cooling system comprising electronic coolant pump and the electric thermostat apparatus including thermostatic valve, and start Machine coolant temperature sensor；And controller, there is the computer-readable instruction being stored on non-transitory memory, institute Stating computer-readable instruction when executed makes the controller: under vehicle close event, order starts the electronic cooling Agent pump activates the electric thermostat apparatus to open the thermostatic valve, and rotates the cooling fan up in advance along the first direction Determine the duration and record the first engine system temperatures rate of decay via the engine coolant temperature sensor, then The cooling fan is rotated up to the predetermined lasting time along the second direction and records the decaying of the second engine system temperatures Rate；The first engine system temperatures rate of decay and the second engine system temperatures rate of decay are compared Compared with；By whether being faster than the second engine system temperatures decaying speed according to the first engine system temperatures rate of decay Rate along the threshold value that a direction rotates that the engine system is cooled to environment temperature by the cooling fan, otherwise also So；And be cooled in the threshold value of environment temperature in response to the engine system, it carries out dependent on engine system Static and low noise conditions diagnosis.In the first example of the system, the system also includes autonomous driving systems；And Wherein the controller storage is further instructed to grasp via the autonomous driving system of a part as Car sharing model Make vehicle.Second example of the system optionally includes first example, and further includes grid blind system, described Grid blind system includes grid shutter；And wherein the controller storage, which is further instructed, fully opens lattice to order Grid shutter is to rotate cooling fan along both first direction and second direction under vehicle close event.The third of the system Example optionally includes any one of described the first to the second example or more persons or each, and further includes one or more Solar battery cell, the solar battery cell can be operated to convert solar radiation into electric energy；And the wherein control Further instruction is described to be operated by the electric energy supplied via one or more of solar battery cells for device storage processed Electronic coolant pump, the electric thermostat apparatus and the cooling fan.

Note that exemplary control included by this paper and estimation program can combine various engines and/or Vehicular system Configuration is used together.Control method and program disclosed herein can be used as executable instruction and be stored in non-transitory memory In, and can be by including that the control system of controller is executed in conjunction with various sensors, actuator and other engine hardwares. Specific procedure as described herein can indicate one or more of any amount of processing strategie, it is such as event driven, in Disconnected driving, processing strategie etc..Therefore, various movements, operation or function shown in can be shown suitable Sequence is executed, is executed parallel, or is omitted in some cases.Equally, processing sequence, which is not necessarily, realizes as described herein show Example property embodiment feature and advantage required for, but for ease of description with description and provide.Shown in one or more Movement, operation and/or function can depend on used specific policy and be repeatedly carried out.In addition, the movement, operation And/or the non-transitory of computer-readable storage media that function can be graphically programmed into engine control system is deposited Code in reservoir, wherein the movement is by executing the instruction combination electronics in the system for including various engine hardware components Controller executes.It should be understood that configuration disclosed herein and program were exemplary in nature, and these specific embodiments It is not be considered in a limiting sense, because many modifications are possible.For example, above-mentioned technology can be applied to V-6, I-4, I- 6, V-12, opposed 4 cylinder and other engine types.The theme of the disclosure include various systems disclosed herein and configuration and its All novel and non-obvious combination and sub-portfolio of his feature, function and/or property.As used herein, unless separately It is described, otherwise term " about " is interpreted to indicate ± the 5% of the range.

Following following claims, which particularly points out, is considered as certain combinations and sub-combinations that are considered novel and non-obvious.These power Benefit requires to may relate to "an" element or " first " element or its equivalent.These claims should be understood to include one Or the combination of multiple such elements, both two or more neither requiring nor excluding such elements.Disclosed feature, function Other combinations of energy, element and/or property and sub-portfolio can be by the revisions of present claims or by the application or phase It closes and proposes new claim in application and be claimed.Such claim compared with former claim no matter in range more It is wide, narrower, equivalent or different be considered to include in the theme of the disclosure.

According to the present invention, a kind of method is included under vehicle close event via based on the engine system compared with second direction Whether temperature damping's rate of uniting indicates faster to select to be along institute under conditions of wherein cooling fan is rotated in a first direction It states first direction and still rotates the cooling fan along the second direction to cool down the engine system of vehicle, vice versa, And it is diagnosed in response to the cooling.

According to one embodiment, it includes in response to the engine system quilt that the diagnosis is carried out in response to the cooling It is cooled in the threshold temperature of environment temperature and carries out the diagnosis.

According to one embodiment, the vehicle is just participating in Car sharing model.

According to one embodiment, the vehicle is able to carry out autonomous vehicle operation.

According to one embodiment, the diagnosis depends on low noise static state engine system condition.

According to one embodiment, the instruction is based at least partially on the known information about the vehicle close event.

It is described to indicate that the one or more being based at least partially under the vehicle close event is stopped according to one embodiment Spoke part, one or more of Parking conditions include with influence which cooling fan direction of rotation will will lead to it is described faster Whether the degree of approach of the structure of engine system temperatures rate of decay and/or the vehicle are parked with tilt angle so that the vehicle Front end be located at height above sea level more higher than the rear end of the vehicle.

According to one embodiment, the vehicle for indicating to be based at least partially under the vehicle close event is logical to vehicle Letter, wherein wirelessly obtaining from the vehicle group in the preset distance of the vehicle about being along the first direction or along described the Two directions, which rotate the cooling fan, will will lead to the data of the faster engine system rate of decay.

According to one embodiment, the instruction is based at least partially on the first engine coolant temperature rate of decay and the Engine with two coolant temperature rate of decay, the first and second engine coolant temperatures rate of decay is via in the vehicle The cooling fan is rotated up to predetermined lasting time and along the second direction along the first direction respectively under close event The cooling fan is rotated up to the predetermined lasting time to measure.

According to the present invention, a kind of vehicle cooling means, which is included in, is rotated in a first direction cooling fan than in a second direction The cooling fan is rotated along the first direction during rotating the condition of the cooling engine of the faster rate of the cooling fan, And the cooling fan is being rotated with more faster than rotating the cooling fan along the first direction along the second direction The cooling fan is rotated along the second direction during the condition of the cooling engine of rate.

According to one embodiment, along the first direction or the second direction rotate the cooling fan be based on it is described Second direction compares the probability that the engine will quickly be cooled down via the cooling fan is rotated along the first direction Whether threshold value is greater than, vice versa.

It is of the invention to be further characterized in that according to one embodiment, when the probability is less than the threshold value, based on measurement First engine coolant temperature rate of decay and the second engine coolant temperature rate of decay of measurement are along the first party To or one of the second direction rotation cooling fan, and wherein rotate the cooling wind via along the first direction Fan measures the first engine coolant temperature rate of decay up to predetermined lasting time, and wherein via along described second Direction rotates the cooling fan up to the predetermined lasting time to measure the second engine coolant temperature rate of decay.

According to one embodiment, the probability is based on following one or more: known information is instructed to influence and described the Whether two directions rotate the cooling fan can faster (vice versa) compared to engine cool via along the first direction One or more Parking conditions and/or vehicle are to vehicle communication, in the vehicle to being obtained in vehicle communication about with described the Whether two directions rotate the cooling fan can faster (vice versa) compared to engine cool via along the first direction Data.

It is described cold for rotating the cooling fan along the first direction or second direction according to one embodiment But the revolving speed of fan changes according to following one or more: engine temperature, the vehicle fuel system temperature and/or It is described by the requested duration in the threshold value of engine cool to environment temperature.

According to one embodiment, the cooling fan is rotated from the radiator of the vehicle along the second direction and is removed Dust and clast.

According to one embodiment, the vehicle includes the vehicle for capableing of autonomous operation；And wherein the vehicle just participates in Car sharing model.

According to the present invention, a kind of system for hybrid vehicle is provided, the system includes engine system； Cooling fan can be operated along first direction and second direction rotation；Cooling system comprising electronic coolant pump and including The electric thermostat apparatus and engine coolant temperature sensor of thermostatic valve；And controller, have and is stored in non-transitory Computer-readable instruction on memory, the computer-readable instruction make the controller when executed: closing in vehicle Under event, order starts the electronic coolant pump, the activation electric thermostat apparatus to open the thermostatic valve, and along described the One direction rotates the cooling fan up to predetermined lasting time and via engine coolant temperature sensor record first Then engine system temperatures rate of decay rotates the cooling fan along the second direction and reaches the predetermined lasting time simultaneously Record the second engine system temperatures rate of decay；The first engine system temperatures rate of decay is started with described second Machine system temperature rate of decay is compared；It is described by whether being faster than according to the first engine system temperatures rate of decay Second engine system temperatures rate of decay rotates the cooling fan along a direction and is cooled to the engine system In the threshold value of environment temperature, vice versa；And the threshold value of environment temperature is cooled in response to the engine system It is interior, carry out the diagnosis dependent on engine system static state and low noise conditions.

It is of the invention to be further characterized in that autonomous driving system according to one embodiment, and the wherein controller storage Further instruction is to operate vehicle via the autonomous driving system of a part as Car sharing model.

It is of the invention to be further characterized in that grid blind system, the grid blind system packet according to one embodiment Grid shutter is included, and wherein further instruct of controller storage fully opens grid shutter in vehicle to order Cooling fan is rotated along both first direction and second direction under close event.

It is of the invention to be further characterized in that one or more solar battery cells, the solar energy according to one embodiment Battery unit can be operated to convert solar radiation into electric energy, and wherein controller storage further instruction with pass through through The electronic coolant pump, the electric thermostat apparatus are operated by electric energy that one or more of solar battery cells are supplied With the cooling fan.