Engine starting method and device, medium, equipment and vehicle
阅读说明：本技术 发动机的起动方法和装置、介质、设备、车辆 (Engine starting method and device, medium, equipment and vehicle ) 是由 胡文泽 于 2020-04-10 设计创作，主要内容包括：本公开涉及一种发动机的起动方法和装置、介质、设备、车辆,应用于P2动力结构的混合动力车辆。方法包括：在混合动力车辆进入并联模式的情况下,控制离合器的压力逐渐增大并达到传扭与不传扭的临界点压力；控制驱动电机通过离合器带动发动机运转,直至发动机的转速达到预定转速,其中,在离合器的压力从临界点压力增大到与预定转速对应的目标压力的过程中,根据离合器的压力调节驱动电机扭矩的增量,以使驱动电机扭矩的增量与离合器的压力满足预定的对应关系；在发动机的转速达到预定转速的情况下,控制发动机点火并调速至与输入轴转速一致。这样,驱动电机的扭矩增量部分应用于发动机的拖拽,从而减小了发动机起动时造成的冲击。(The disclosure relates to a starting method and device of an engine, a medium, equipment and a vehicle, which are applied to a hybrid vehicle with a P2 power structure. The method comprises the following steps: under the condition that the hybrid vehicle enters a parallel mode, the pressure of the control clutch is gradually increased and reaches the critical point pressure of torque transmission and torque non-transmission; controlling a driving motor to drive an engine to operate through a clutch until the rotating speed of the engine reaches a preset rotating speed, wherein in the process that the pressure of the clutch is increased from the critical point pressure to the target pressure corresponding to the preset rotating speed, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch, so that the increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation; and controlling the engine to ignite and regulate the speed to be consistent with the rotating speed of the input shaft under the condition that the rotating speed of the engine reaches a preset rotating speed. Thus, the torque increment portion of the drive motor is applied to the drag of the engine, thereby reducing the shock caused at the time of engine start.)
1. An engine starting method applied to a hybrid vehicle of a P2 power structure, characterized by comprising:
under the condition that the hybrid vehicle enters a parallel mode, the pressure of a control clutch is gradually increased and reaches the critical point pressure of torque transmission and torque non-transmission;
controlling a driving motor to drive an engine to run through a clutch until the rotating speed of the engine reaches a preset rotating speed, wherein in the process that the pressure of the clutch is increased from the critical point pressure to a target pressure corresponding to the preset rotating speed, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch so that the increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation;
and controlling the engine to ignite under the condition that the rotating speed of the engine reaches the preset rotating speed, and regulating the speed of the engine to be consistent with the rotating speed of the input shaft after ignition.
2. The method of claim 1, wherein adjusting the increment of the drive motor torque based on the pressure of the clutch such that the increment of the drive motor torque and the pressure of the clutch satisfy a predetermined correspondence comprises:
searching the increment of the torque of the driving motor corresponding to the current pressure of the clutch according to the preset corresponding relation between the increment of the torque of the driving motor and the pressure of the clutch;
and controlling the increment of the torque of the driving motor to be the searched increment.
3. The method of claim 1, further comprising:
determining a drag torque required by the engine from rest to the predetermined speed;
determining the target pressure of the clutch according to the drag torque.
4. The method of claim 3, wherein determining a drag torque required by the engine from rest to the predetermined speed comprises:
acquiring the water temperature of the engine;
and determining the dragging torque corresponding to the acquired water temperature according to the preset corresponding relation between the dragging torque and the water temperature of the engine, wherein the dragging torque is used as the dragging torque required by the engine from rest to the preset rotating speed.
5. The method of claim 1, wherein controlling ignition of the engine and governing the engine to coincide with an input shaft speed after ignition if a speed of the engine reaches the predetermined speed comprises:
controlling the pressure of the clutch to decrease to the critical-point pressure in a case where the rotational speed of the engine reaches the predetermined rotational speed;
controlling the engine to ignite and then ramping the engine to match the input shaft speed after ignition if the clutch pressure reaches the threshold point pressure.
6. The method of claim 1, further comprising:
acquiring a target torque of the engine and a target torque of the driving motor under the condition that the engine is regulated to be consistent with the rotating speed of an input shaft;
controlling the pressure of the clutch to increase to a pressure corresponding to the greater of the target torque of the engine and the target torque of the drive motor.
7. An engine starting apparatus applied to a hybrid vehicle of a P2 power structure, characterized by comprising:
the control device comprises a first control module, a second control module and a third control module, wherein the first control module is used for controlling the pressure of a clutch to gradually increase and reach the critical point pressure of torque transmission and torque non-transmission when the hybrid vehicle enters a parallel mode;
the adjusting module is used for controlling a driving motor to drive an engine to operate through the clutch until the rotating speed of the engine reaches a preset rotating speed, wherein in the process that the pressure of the clutch is increased from the critical point pressure to a target pressure corresponding to the preset rotating speed, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch so that the increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation;
and the second control module is used for controlling the engine to ignite under the condition that the rotating speed of the engine reaches the preset rotating speed, and regulating the speed of the engine to be consistent with the rotating speed of the input shaft after ignition.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
9. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 6.
10. A hybrid vehicle of P2 power architecture, comprising a drive motor, an engine, and a controller for performing the steps of the method of any of claims 1-6.
Technical Field
The present disclosure relates to the field of hybrid vehicle control, and in particular, to a method and apparatus for starting an engine, a medium, a device, and a vehicle.
Background
Compared with the traditional fuel vehicle, the hybrid vehicle has the advantages of saving oil consumption to a great extent and having multiple driving modes such as pure electricity, series connection, parallel connection and the like. When the vehicle runs in the pure electric mode, the driving motor consumes the electric quantity of the power battery to provide power for the whole vehicle, and an engine does not need to participate. Series and parallel modes require the engine to be either indirectly or directly involved in the drive.
In the industry, hybrid technologies are classified into the following according to the architecture of an electrification part and the position of a motor: p0, P1, P2, P3, P4, ps (power split) configuration. Where P is defined as the position of the motor. The P2 architecture refers to that an electric motor is arranged between an internal combustion engine and a gearbox, and the electric motor can be used for intervention (hybrid power) when the internal combustion engine works and can also be used for driving the gearbox alone to realize pure electric driving when the internal combustion engine is closed.
In the hybrid vehicle with the P2 architecture, when the engine is required to participate in driving, the engine can be started by adopting the starter motor, then the engine can participate in driving by combining the clutch, and if the connection is not proper in the process, the whole vehicle is easy to shake or impact, so how to ensure the smoothness from starting the engine to the process that the engine participates in driving is an important link of the whole vehicle controller which needs to be researched and designed.
Disclosure of Invention
The purpose of the present disclosure is to provide a reliable and highly practical engine starting method and device, medium, device, and vehicle.
In order to achieve the above object, the present disclosure provides a starting method of an engine applied to a hybrid vehicle of a P2 power structure. The method comprises the following steps:
under the condition that the hybrid vehicle enters a parallel mode, the pressure of a control clutch is gradually increased and reaches the critical point pressure of torque transmission and torque non-transmission;
controlling a driving motor to drive an engine to run through a clutch until the rotating speed of the engine reaches a preset rotating speed, wherein in the process that the pressure of the clutch is increased from the critical point pressure to a target pressure corresponding to the preset rotating speed, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch so that the increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation;
and controlling the engine to ignite under the condition that the rotating speed of the engine reaches the preset rotating speed, and regulating the speed of the engine to be consistent with the rotating speed of the input shaft after ignition.
Optionally, adjusting the increment of the driving motor torque according to the pressure of the clutch so that the increment of the driving motor torque and the pressure of the clutch satisfy a predetermined corresponding relationship, including:
searching the increment of the torque of the driving motor corresponding to the current pressure of the clutch according to the preset corresponding relation between the increment of the torque of the driving motor and the pressure of the clutch;
and controlling the increment of the torque of the driving motor to be the searched increment.
Optionally, the method further comprises:
determining a drag torque required by the engine from rest to the predetermined speed;
determining the target pressure of the clutch according to the drag torque.
Optionally, determining a drag torque required by the engine from rest to the predetermined speed comprises:
acquiring the water temperature of the engine;
and determining the dragging torque corresponding to the acquired water temperature according to the preset corresponding relation between the dragging torque and the water temperature of the engine, wherein the dragging torque is used as the dragging torque required by the engine from rest to the preset rotating speed.
Alternatively, controlling ignition of the engine and governing the engine to coincide with an input shaft speed after ignition in a case where the engine speed reaches the predetermined speed, includes:
controlling the pressure of the clutch to decrease to the critical-point pressure in a case where the rotational speed of the engine reaches the predetermined rotational speed;
controlling the engine to ignite and then ramping the engine to match the input shaft speed after ignition if the clutch pressure reaches the threshold point pressure.
Optionally, the method further comprises:
acquiring a target torque of the engine and a target torque of the driving motor under the condition that the engine is regulated to be consistent with the rotating speed of an input shaft;
controlling the pressure of the clutch to increase to a pressure corresponding to the greater of the target torque of the engine and the target torque of the drive motor.
The present disclosure also provides an engine starting apparatus applied to a hybrid vehicle of a P2 power structure, the apparatus including:
the control device comprises a first control module, a second control module and a third control module, wherein the first control module is used for controlling the pressure of a clutch to gradually increase and reach the critical point pressure of torque transmission and torque non-transmission when the hybrid vehicle enters a parallel mode;
the adjusting module is used for controlling a driving motor to drive an engine to operate through the clutch, and the rotating speed of the engine reaches a preset rotating speed, wherein in the process that the pressure of the clutch is increased from the critical point pressure to a target pressure corresponding to the preset rotating speed, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch, so that the increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation;
and the second control module is used for controlling the engine to ignite under the condition that the rotating speed of the engine reaches the preset rotating speed, and regulating the speed of the engine to be consistent with the rotating speed of the input shaft after ignition.
The present disclosure also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method provided by the present disclosure.
The present disclosure also provides an electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the above-described method provided by the present disclosure.
The present disclosure also provides a hybrid vehicle of a P2 power architecture including a drive motor, an engine, and a controller for performing the steps of the above method provided by the present disclosure.
Through the technical scheme, a starting motor does not need to be independently configured, and the driving motor is directly adopted to start the engine through the sliding friction of the clutch. The increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation, and the increment of the torque of the driving motor corresponding to the pressure of the clutch can be completely used for the dragging torque required by the engine according to the corresponding relation. Therefore, in the process of increasing the pressure of the clutch, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch, so that in the process of engaging the clutch, the increment of the torque of the driving motor is applied to dragging of the engine, and the part of the torque used for driving by the driving motor is relatively stable, so that the impact caused when the engine is started is reduced, and the driving process is smoother.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart of a method for starting an engine provided by an exemplary embodiment;
FIG. 2 is a schematic diagram of vehicle speed variation without compensating torque of the drive motor when starting the engine according to an exemplary embodiment;
FIG. 3 is a schematic illustration of vehicle speed variation with compensation torque of the drive motor when starting the engine according to an exemplary embodiment;
FIG. 4 is a block diagram of a starting apparatus of an engine provided in an exemplary embodiment;
FIG. 5 is a block diagram of an electronic device, shown in an exemplary embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
The method of the present disclosure is applied to a hybrid vehicle of a P2 power configuration. FIG. 1 is a flow chart of a method for starting an engine provided by an exemplary embodiment. As shown in fig. 1, the method may include the steps of:
step S11, in the case where the hybrid vehicle enters the parallel mode, the pressure of the control clutch is gradually increased and reaches a critical point (KP) pressure of the transmission and non-transmission.
And step S12, controlling the driving motor to drive the engine to run through the clutch until the rotating speed of the engine reaches a preset rotating speed, wherein in the process that the pressure of the clutch is increased from the critical point pressure to the target pressure corresponding to the preset rotating speed, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch, so that the increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation.
In step S13, in the case where the rotation speed of the engine reaches a predetermined rotation speed, ignition of the engine is controlled and the engine is throttled to coincide with the rotation speed of the input shaft after the ignition.
The target driving mode of the hybrid power vehicle can be decided according to the requirements of a driver and the current state of the whole vehicle, and the hybrid power vehicle can work in the most economic mode as far as possible while the dynamic property of the whole vehicle is ensured. The driver's demand may include an instruction input by the driver through an accelerator pedal, a brake pedal, a Human Machine Interface (HMI), and the like, and the current state of the entire vehicle may include a vehicle speed, a power battery SOC, a driving motor capacity limit value, diagnostic information, and the like. It will be appreciated by those skilled in the art that the determination of the target driving mode may be derived by applying relevant strategies and will not be described in detail here.
In the parallel mode, the driving motor can drive the engine to run through the clutch. The preset rotating speed of the engine is the engine rotating speed calibrated in advance, and the ignition and the speed regulation of the engine can be controlled under the condition that the rotating speed of the engine reaches the preset rotating speed.
The target pressure of the clutch is a pressure corresponding to a predetermined rotational speed of the engine, i.e., if the pressure of the clutch reaches the target pressure, the engine will reach the predetermined rotational speed. The target pressure may be determined based on a predetermined rotational speed of the engine.
The pressure increase of the clutch can be divided into two phases: a precharge phase and an augmentation phase. When the clutch is in a disconnected state, no hydraulic oil exists in the clutch cavity, and pressure cannot be provided, so that torque is not transmitted, and the pre-charging stage is oil charging until the pressure of the clutch reaches KP pressure, which is a preparation stage. The increasing stage is a stage in which the clutch pressure is increased from the KP pressure. Starting from the KP pressure, the clutch is gradually engaged.
In the parallel mode, a portion of the torque of the drive motor is applied to the towing of the engine and a portion is used for the driving of the vehicle. During the gradual engagement of the clutch, the drive motor loses a portion of the torque originally used for driving to drag the engine. Therefore, in the present aspect, the increase amount of the drive motor torque is determined according to the pressure of the clutch, so that the increase amount of the drive motor torque can be applied to the towing engine, thereby less affecting the torque for driving the vehicle. Correspondingly, the increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation, which can be obtained by tests and stored in advance. Under the ideal condition, according to the corresponding relation, the increment of the torque of the driving motor corresponding to the pressure of the clutch can be completely used for the dragging torque required by the engine, so that the part of the torque of the driving motor used for driving the vehicle is not influenced, the engine is not impacted when being started, and the vehicle speed is relatively stable.
Through the technical scheme, a starting motor does not need to be independently configured, and the driving motor is directly adopted to start the engine through the sliding friction of the clutch. The increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation, and the increment of the torque of the driving motor corresponding to the pressure of the clutch can be completely used for the dragging torque required by the engine according to the corresponding relation. Therefore, in the process of increasing the pressure of the clutch, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch, so that in the process of engaging the clutch, the increment of the torque of the driving motor is applied to dragging of the engine, and the part of the torque used for driving by the driving motor is relatively stable, so that the impact caused when the engine is started is reduced, and the driving process is smoother.
In another embodiment, on the basis of fig. 1, the step of adjusting the increment of the torque of the driving motor according to the pressure of the clutch so that the increment of the torque of the driving motor and the pressure of the clutch satisfy a predetermined correspondence (step S12) may include:
searching the increment of the torque of the driving motor corresponding to the current pressure of the clutch according to the preset corresponding relation between the increment of the torque of the driving motor and the pressure of the clutch;
the increment of the torque of the driving motor is controlled to the searched increment.
The increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation, and can be obtained according to experiments and stored in advance. In each detection period, the current pressure of the clutch is detected, the corresponding increment of the torque of the driving motor is determined in a table look-up mode, and the torque of the driving motor is controlled to increase by the found increment.
In the embodiment, the torque increment of the driving motor is determined in a mode of calibrating the corresponding relation in advance, detecting the pressure in real time and looking up a table, and the method is simple and practical and has high reliability.
FIG. 2 is a schematic diagram illustrating vehicle speed variation without compensating torque of the drive motor when starting the engine according to an exemplary embodiment. In fig. 2, the torque of the drive motor is not increased from the KP pressure to the target pressure, so that a part of the torque of the drive motor is used for dragging the engine during the gradual engagement of the clutch, resulting in large up-and-down fluctuation of the vehicle speed.
FIG. 3 is a schematic diagram illustrating vehicle speed variation with compensation torque of the drive motor when starting the engine according to an exemplary embodiment. In fig. 3, the clutch pressure starts from the KP pressure to the target pressure, and the driving motor torque has an increased torque (torque increase) Δ T, so that during the gradual engagement of the clutch, the increased torque of the driving motor can be used for dragging the engine, and the rising rate of the clutch pressure determines the increasing rate of the torque of the driving motor, and ensures that the increased torque is almost completely used for dragging the engine, so that the vehicle speed is relatively smooth.
In the disclosure, under the condition that the driving motor drives the vehicle and simultaneously drags the engine, the problem of smoothness of the whole vehicle is solved. When the pressure of the clutch is increased, the torque is increased and compensated for a certain degree for the driving motor, and the acceleration of the whole vehicle is enabled to be less affected.
In yet another embodiment, the method may further comprise: determining a drag torque required by the engine from a standstill to a predetermined rotational speed; and determining the target pressure of the clutch according to the dragging torque.
That is, the target clutch pressure is determined based on the drag torque required by the engine from rest to a predetermined speed. The drag torque may be a predetermined value or may be determined in real time based on a parameter (e.g., water temperature of the engine).
In the embodiment, the drag torque and the target pressure of the clutch can have a pre-calibrated corresponding relation, the target pressure of the clutch is determined in a table look-up mode, and the method is simple, practical and high in reliability.
In yet another embodiment, the step of determining the drag torque required by the engine to reach a predetermined speed from rest may comprise: acquiring water temperature of an engine; and determining the dragging torque corresponding to the obtained water temperature according to the preset corresponding relation between the dragging torque and the water temperature of the engine, wherein the dragging torque is used as the dragging torque required by the engine from rest to a preset rotating speed.
Since the drag torque of the engine is affected by the ambient temperature, in this embodiment, the magnitude of the drag torque is determined according to different engine water temperatures. In the embodiment, the corresponding relation is calibrated in advance, the water temperature of the engine is detected in real time, and the dragging torque is determined in a table look-up mode.
In still another embodiment, on the basis of fig. 1, the step of controlling ignition of the engine in a case where the rotation speed of the engine reaches a predetermined rotation speed, and governing the engine to coincide with the rotation speed of the input shaft after the ignition (step S13) may include:
controlling the pressure of the clutch to be reduced to KP pressure under the condition that the rotating speed of the engine reaches a preset rotating speed; in the case where the pressure of the clutch reaches the KP pressure, the engine ignition is controlled and after the ignition the engine is throttled to coincide with the input shaft speed.
That is, when the rotating speed of the engine just reaches the preset rotating speed, the pressure of the clutch should be the target pressure, and at the moment, the pressure of the clutch is firstly reduced to KP pressure, and then the ignition and the speed regulation of the engine are controlled. Thus, when the engine is ignited and the speed is regulated, the torque can be prevented from being transmitted to the input shaft, and the impact which can be caused when the engine is ignited can be reduced.
In yet another embodiment, the method may further include:
under the condition that the speed of the engine is regulated to be consistent with the rotating speed of the input shaft, acquiring a target torque of the engine and a target torque of the driving motor; the pressure of the clutch is controlled to be increased to a pressure corresponding to the larger of the target torque of the engine and the target torque of the drive motor.
It will be appreciated by those skilled in the art that after engine throttling is complete, the target torque for the engine and the target torque for the drive motor may be determined according to torque distribution strategies known in the art. In this embodiment, the larger of the two values is taken to determine the clutch pressure.
Specifically, the target torque of the engine and the clutch pressure have a predetermined correspondence relationship, and the target torque of the drive motor and the clutch pressure also have a predetermined correspondence relationship. If the target torque of the engine is large, the clutch pressure corresponding to the current target torque of the engine can be determined according to the corresponding relation between the target torque of the engine and the clutch pressure. Similarly, if the target torque of the driving motor is large, the clutch pressure corresponding to the current target torque of the driving motor may be determined according to the corresponding relationship between the target torque of the driving motor and the clutch pressure. Therefore, the clutch completes compression combination and can completely transmit the torque of the engine to the input shaft, so that the driving motor normally participates in driving.
The present disclosure also provides a starting apparatus of an engine applied to a hybrid vehicle of a P2 power structure. Fig. 4 is a block diagram of a starting apparatus of an engine provided by an exemplary embodiment. The apparatus 10 includes a first control module 11, a regulation module 12, and a second control module 13.
The first control module 11 is configured to control the clutch to gradually increase in pressure and reach a critical point pressure of torque transfer and no torque transfer when the hybrid vehicle enters a parallel mode.
The adjusting module 12 is configured to control the driving motor to drive the engine to operate through the clutch until the rotation speed of the engine reaches a predetermined rotation speed, wherein in a process that the pressure of the clutch is increased from the critical point pressure to a target pressure corresponding to the predetermined rotation speed, an increment of the torque of the driving motor is adjusted according to the pressure of the clutch, so that the increment of the torque of the driving motor and the pressure of the clutch satisfy a predetermined corresponding relationship.
The second control module 13 is configured to control the engine to ignite if the speed of the engine reaches a predetermined speed and to throttle the engine to match the input shaft speed after ignition.
Optionally, the adjustment module includes a lookup sub-module and a first control sub-module.
The searching submodule is used for searching the increment of the torque of the driving motor corresponding to the current pressure of the clutch according to the preset corresponding relation between the increment of the torque of the driving motor and the pressure of the clutch;
the first control submodule is used for controlling the increment of the torque of the driving motor to be the searched increment.
Optionally, the apparatus 10 further comprises a first determining module and a second determining module.
The first determination module is used for determining the dragging torque required by the engine from a static state to a preset rotating speed;
the second determination module is used for determining a target pressure of the clutch according to the dragging torque.
Optionally, the first determining module includes a first obtaining sub-module and a first determining sub-module.
The first obtaining submodule is used for obtaining the water temperature of the engine.
The first determining submodule is used for determining the dragging torque corresponding to the acquired water temperature according to the preset corresponding relation between the dragging torque and the water temperature of the engine, and the dragging torque is used as the dragging torque required by the engine from rest to the preset rotating speed.
Optionally, the second control module 13 includes a second control sub-module and a third control sub-module.
The second control submodule is configured to control the pressure of the clutch to decrease to the critical-point pressure in a case where the rotational speed of the engine reaches a predetermined rotational speed.
The third control sub-module is used for controlling the engine to ignite under the condition that the pressure of the clutch reaches the critical-point pressure, and regulating the speed of the engine to be consistent with the rotating speed of the input shaft after ignition.
Optionally, the apparatus 10 further comprises an obtaining module and a third control module.
The obtaining module is used for obtaining the target torque of the engine and the target torque of the driving motor under the condition that the engine is regulated to be consistent with the rotating speed of the input shaft.
The third control module is for controlling the pressure of the clutch to be increased to a pressure corresponding to a larger one of a target torque of the engine and a target torque of the drive motor.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Through the technical scheme, a starting motor does not need to be independently configured, and the driving motor is directly adopted to start the engine through the sliding friction of the clutch. The increment of the torque of the driving motor and the pressure of the clutch meet a preset corresponding relation, and the increment of the torque of the driving motor corresponding to the pressure of the clutch can be completely used for the dragging torque required by the engine according to the corresponding relation. Therefore, in the process of increasing the pressure of the clutch, the increment of the torque of the driving motor is adjusted according to the pressure of the clutch, so that in the process of engaging the clutch, the increment of the torque of the driving motor is applied to dragging of the engine, and the part of the torque used for driving by the driving motor is relatively stable, so that the impact caused when the engine is started is reduced, and the driving process is smoother.
The present disclosure also provides an electronic device comprising a memory and a processor.
The memory has stored thereon a computer program. The processor is used for executing the computer program in the memory to realize the steps of the above method provided by the present disclosure.
Fig. 5 is a block diagram illustrating an electronic device 500 in accordance with an example embodiment. As shown in fig. 5, the electronic device 500 may include: a processor 501 and a memory 502. The electronic device 500 may also include one or more of a multimedia component 503, an input/output (I/O) interface 504, and a communication component 505.
The processor 501 is configured to control the overall operation of the electronic device 500, so as to complete all or part of the steps in the engine starting method. The memory 502 is used to store various types of data to support operation at the electronic device 500, such as instructions for any application or method operating on the electronic device 500 and application-related data, such as contact data, messaging, pictures, audio, video, and so forth. The Memory 502 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 503 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 502 or transmitted through the communication component 505. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 504 provides an interface between the processor 501 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 505 is used for wired or wireless communication between the electronic device 500 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 505 may thus comprise: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described engine starting method.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the engine starting method described above is also provided. For example, the computer readable storage medium may be the memory 502 described above including program instructions executable by the processor 501 of the electronic device 500 to perform the engine starting method described above.
The present disclosure also provides a hybrid vehicle of a P2 power architecture including a drive motor, an engine, and a controller for performing the steps of the above method provided by the present disclosure.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.