Vehicle fuel tank lock control method and device, controller and readable storage medium
阅读说明：本技术 车辆油箱锁控制方法、装置、控制器及可读存储介质 (Vehicle fuel tank lock control method and device, controller and readable storage medium ) 是由 王德辉 杜月鑫 陈领平 戴西槐 冯彧 熊华锋 于 2019-10-09 设计创作，主要内容包括：本发明提供一种车辆油箱锁控制方法、装置、控制器及可读存储介质,涉及车辆技术领域。所述方法包括：若整车控制器接收到车机控制器发送的加油请求信号,判断车辆是否满足预先设置的第一加油条件；若满足,则向发动机控制器发送泄压指令；若检测到高压油箱泄压完成,向车身控制器发送开锁指令,开锁指令用于指示车身控制器开启高压油箱的油箱锁。通过先判断车辆是否满足第一加油条件,再在车辆满足第一加油条件的基础上对高压油箱进行泄压,最后在泄压完成后再开启高压油箱的油箱锁,避免了一同开启油箱锁和油箱隔离阀的情况,降低了对高压油箱进行加油的危险性,提高了对高压油箱加油的安全性。(The invention provides a vehicle fuel tank lock control method, a vehicle fuel tank lock control device, a controller and a readable storage medium, and relates to the technical field of vehicles. The method comprises the following steps: if the vehicle controller receives a refueling request signal sent by the vehicle-mounted controller, judging whether the vehicle meets a preset first refueling condition; if so, sending a pressure relief instruction to an engine controller; and if the pressure relief of the high-pressure oil tank is completed, sending an unlocking instruction to the vehicle body controller, wherein the unlocking instruction is used for indicating the vehicle body controller to unlock an oil tank lock of the high-pressure oil tank. Whether the vehicle meets the first refueling condition or not is judged firstly, then the pressure relief is carried out on the high-pressure oil tank on the basis that the vehicle meets the first refueling condition, and finally the oil tank lock of the high-pressure oil tank is opened after the pressure relief is finished, so that the condition that the oil tank lock and the oil tank isolating valve are opened together is avoided, the risk of refueling the high-pressure oil tank is reduced, and the refueling safety of the high-pressure oil tank is improved.)
1. A vehicle fuel tank lock control method, characterized in that the vehicle comprises: the method comprises the following steps that the vehicle controller, an engine controller, a vehicle body controller, a vehicle machine controller and a high-pressure oil tank are arranged, the high-pressure oil tank comprises an oil tank isolation valve and an oil tank lock, the vehicle controller is respectively electrically connected with the engine controller, the vehicle body controller and the vehicle machine controller, the engine controller is electrically connected with the oil tank isolation valve, the vehicle body controller is electrically connected with the oil tank lock, the method is applied to the vehicle controller, and the method comprises the following steps:
if a refueling request signal sent by the vehicle machine controller is received, judging whether the vehicle meets a preset first refueling condition;
if the vehicle meets the first refueling condition, sending a pressure relief instruction to the engine controller, wherein the pressure relief instruction is used for instructing the engine controller to open an oil tank isolation valve of the high-pressure oil tank so as to relieve the pressure of the high-pressure oil tank;
if the pressure relief of the high-pressure oil tank is completed, an unlocking instruction is sent to the vehicle body controller, and the unlocking instruction is used for indicating the vehicle body controller to unlock the oil tank lock of the high-pressure oil tank.
2. The method of claim 1, wherein said determining whether said vehicle meets a preset first fueling condition comprises:
acquiring the speed, the gear state and the engine state of the vehicle;
and if the vehicle speed is less than or equal to a preset vehicle speed threshold value, the gear state is in a parking gear, and the engine state is in a flameout state, determining that the vehicle meets the first refueling condition.
3. The method of claim 1, wherein after said sending an unlock instruction to said vehicle body controller, said method further comprises:
and sending an isolation valve closing instruction to the engine controller according to the fuel tank cover closing signal sent by the vehicle body controller so as to control the engine controller to close the fuel tank isolation valve of the high-pressure fuel tank.
4. The method of claim 1, wherein after said sending an unlock instruction to said vehicle body controller, said method further comprises:
if an oil tank abnormity signal sent by the vehicle body controller is received, an oil tank abnormity reminding signal is sent, wherein the oil tank abnormity signal is sent when the vehicle body controller detects that the motor state of the oil tank lock or the state of the microswitch of the oil tank lock is abnormal.
5. The method of any one of claims 1 to 4, wherein said refueling request signal is sent by said on-board vehicle controller to said vehicle control unit upon determining that said vehicle satisfies a second refueling condition;
and if the power state of the vehicle is the whole vehicle power-ON state or the accessory starting ACC state, the vehicle meets the second refueling condition.
6. The method of any one of claims 1 to 4, wherein the high pressure fuel tank further comprises a pressure sensor electrically connected to the engine controller;
before the sending of the unlocking instruction to the vehicle body controller, the method further comprises the following steps:
acquiring the oil tank pressure of the high-pressure oil tank acquired by a pressure sensor in the high-pressure oil tank through the engine controller;
acquiring a pressure difference between the oil tank pressure and atmospheric pressure;
and if the pressure difference value is smaller than or equal to a preset pressure threshold value, determining that the pressure relief of the high-pressure oil tank is finished.
7. A vehicle fuel tank lock control method, characterized in that the vehicle comprises: the method is applied to the engine controller, and comprises the following steps of:
receiving a pressure relief instruction sent by the whole vehicle controller;
and opening an oil tank isolation valve of the high-pressure oil tank according to the pressure relief instruction so as to relieve the pressure of the high-pressure oil tank.
8. A vehicle fuel tank lock control device characterized in that a vehicle includes: vehicle control unit, engine controller, automobile body controller, car machine controller and high-pressure oil tank, high-pressure oil tank includes oil tank isolation valve and oil tank lock, vehicle control unit respectively with engine controller automobile body controller with the car machine controller electricity is connected, engine controller with the oil tank isolation valve electricity is connected, vehicle control unit with the oil tank lock electricity is connected, the device is applied to vehicle control unit, the device includes:
the judging module is used for judging whether the vehicle meets a preset first refueling condition or not if a refueling request signal sent by the vehicle machine controller is received;
the first sending module is used for sending a pressure relief instruction to the engine controller if the vehicle meets the first refueling condition, wherein the pressure relief instruction is used for instructing the engine controller to open an oil tank isolation valve of the high-pressure oil tank so as to relieve the pressure of the high-pressure oil tank;
and the second sending module is used for sending an unlocking instruction to the vehicle body controller if the pressure relief of the high-pressure oil tank is completed, wherein the unlocking instruction is used for indicating the vehicle body controller to open the oil tank lock of the high-pressure oil tank.
9. The device of claim 8, wherein the determining module is further configured to obtain a vehicle speed, a gear state, and an engine state of the vehicle; and if the vehicle speed is less than or equal to a preset vehicle speed threshold value, the gear state is in a parking gear, and the engine state is in a flameout state, determining that the vehicle meets the first refueling condition.
10. The apparatus of claim 8, wherein the apparatus further comprises:
and the third sending module is used for sending an isolating valve closing instruction to the engine controller according to the fuel tank cover closing signal sent by the vehicle body controller so as to control the engine controller to close the fuel tank isolating valve of the high-pressure fuel tank.
11. The apparatus of claim 8, wherein the apparatus further comprises:
and the reminding module is used for sending an oil tank abnormity reminding signal if receiving the oil tank abnormity signal sent by the vehicle body controller, wherein the oil tank abnormity signal is sent when the vehicle body controller detects the motor state of the oil tank lock or the state of the microswitch of the oil tank lock is abnormal.
12. The apparatus as defined in any one of claims 8 to 11, wherein said refueling request signal is sent by said in-vehicle controller to said vehicle control unit upon determining that said vehicle satisfies a second refueling condition;
and if the power state of the vehicle is the whole vehicle power-ON state or the accessory starting ACC state, the vehicle meets the second refueling condition.
13. The apparatus of any one of claims 8 to 11, wherein the high pressure fuel tank further comprises a pressure sensor, the pressure sensor being electrically connected to the engine controller;
the device further comprises:
the first acquisition module is used for acquiring the oil tank pressure of the high-pressure oil tank, which is acquired by a pressure sensor in the high-pressure oil tank, through the engine controller;
the second acquisition module is used for acquiring a pressure difference value between the oil tank pressure and the atmospheric pressure;
and the determining module is used for determining that the pressure relief of the high-pressure oil tank is finished if the pressure difference value is less than or equal to a preset pressure threshold value.
14. A vehicle fuel tank lock control device characterized in that a vehicle includes: engine controller, vehicle control unit and high-pressure oil tank, the high-pressure oil tank includes oil tank isolating valve, vehicle control unit with the engine controller electricity is connected, engine controller with the oil tank isolating valve electricity is connected, the device is applied to engine controller, the device includes:
the receiving module is used for receiving a pressure relief instruction sent by the vehicle control unit;
and the action execution module is used for opening an oil tank isolation valve of the high-pressure oil tank according to the pressure relief instruction so as to relieve the pressure of the high-pressure oil tank.
15. A vehicle control unit, comprising: a processor, a storage medium and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, when the vehicle control unit is operated, the processor and the storage medium communicate through the bus, and the processor executes the machine-readable instructions to execute the steps of the vehicle tank lock control method according to any one of claims 1 to 6.
16. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the vehicle tank lock control method according to one of claims 1 to 6.
17. An engine controller, comprising: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating over the bus when the engine controller is running, the processor executing the machine-readable instructions to perform the steps of the vehicle tank lock control method according to claim 7.
18. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, carries out the steps of the vehicle tank lock control method according to claim 7.
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle fuel tank lock control method, a vehicle fuel tank lock control device, a vehicle fuel tank lock controller and a readable storage medium.
Background
With the continued development of the automotive industry, vehicle fuel tanks have been converted from conventional mechanically locked fuel tanks to high pressure fuel tanks in response to vehicle fuel vapor regulations.
Disclosure of Invention
The present invention is directed to a method, an apparatus, a controller and a readable storage medium for controlling a fuel tank lock of a vehicle, which are provided to solve the problem of potential safety hazard during refueling when a fuel tank isolation valve and the fuel tank lock are opened together.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a method for controlling a fuel tank lock of a vehicle, where the vehicle includes: the method comprises the following steps that the vehicle controller, an engine controller, a vehicle body controller, a vehicle machine controller and a high-pressure oil tank are arranged, the high-pressure oil tank comprises an oil tank isolation valve and an oil tank lock, the vehicle controller is respectively electrically connected with the engine controller, the vehicle body controller and the vehicle machine controller, the engine controller is electrically connected with the oil tank isolation valve, the vehicle body controller is electrically connected with the oil tank lock, the method is applied to the vehicle controller, and the method comprises the following steps:
if a refueling request signal sent by the vehicle machine controller is received, judging whether the vehicle meets a preset first refueling condition;
if the vehicle meets the first refueling condition, sending a pressure relief instruction to the engine controller, wherein the pressure relief instruction is used for instructing the engine controller to open an oil tank isolation valve of the high-pressure oil tank so as to relieve the pressure of the high-pressure oil tank;
if the pressure relief of the high-pressure oil tank is completed, an unlocking instruction is sent to the vehicle body controller, and the unlocking instruction is used for indicating the vehicle body controller to unlock the oil tank lock of the high-pressure oil tank.
Optionally, the determining whether the vehicle meets a preset first refueling condition includes:
acquiring the speed, the gear state and the engine state of the vehicle;
and if the vehicle speed is less than or equal to a preset vehicle speed threshold value, the gear state is in a parking gear, and the engine state is in a flameout state, determining that the vehicle meets the first refueling condition.
Optionally, after the sending of the unlocking instruction to the vehicle body controller, the method further includes:
and sending an isolation valve closing instruction to the engine controller according to the fuel tank cover closing signal sent by the vehicle body controller so as to control the engine controller to close the fuel tank isolation valve of the high-pressure fuel tank.
Optionally, after the sending of the unlocking instruction to the vehicle body controller, the method further includes:
if an oil tank abnormity signal sent by the vehicle body controller is received, an oil tank abnormity reminding signal is sent, wherein the oil tank abnormity signal is sent when the vehicle body controller detects that the motor state of the oil tank lock or the state of the microswitch of the oil tank lock is abnormal.
Optionally, the refueling request signal is sent to the vehicle controller by the vehicle-mounted controller when it is determined that the vehicle meets a second refueling condition;
and if the power state of the vehicle is the whole vehicle power-ON state or the accessory starting ACC state, the vehicle meets the second refueling condition.
Optionally, the high-pressure oil tank further comprises a pressure sensor, and the pressure sensor is electrically connected with the engine controller;
before the sending of the unlocking instruction to the vehicle body controller, the method further comprises the following steps:
acquiring the oil tank pressure of the high-pressure oil tank acquired by a pressure sensor in the high-pressure oil tank through the engine controller;
acquiring a pressure difference between the oil tank pressure and atmospheric pressure;
and if the pressure difference value is smaller than or equal to a preset pressure threshold value, determining that the pressure relief of the high-pressure oil tank is finished.
In a second aspect, an embodiment of the present invention further provides a method for controlling a fuel tank lock of a vehicle, where the vehicle includes: the method is applied to the engine controller, and comprises the following steps of:
receiving a pressure relief instruction sent by the whole vehicle controller;
and opening an oil tank isolation valve of the high-pressure oil tank according to the pressure relief instruction so as to relieve the pressure of the high-pressure oil tank.
In a third aspect, an embodiment of the present invention further provides a vehicle fuel tank lock control device, where the vehicle includes: vehicle control unit, engine controller, automobile body controller, car machine controller and high-pressure oil tank, high-pressure oil tank includes oil tank isolation valve and oil tank lock, vehicle control unit respectively with engine controller automobile body controller with the car machine controller electricity is connected, engine controller with the oil tank isolation valve electricity is connected, vehicle control unit with the oil tank lock electricity is connected, the device is applied to vehicle control unit, the device includes:
the judging module is used for judging whether the vehicle meets a preset first refueling condition or not if a refueling request signal sent by the vehicle machine controller is received;
the first sending module is used for sending a pressure relief instruction to the engine controller if the vehicle meets the first refueling condition, wherein the pressure relief instruction is used for instructing the engine controller to open an oil tank isolation valve of the high-pressure oil tank so as to relieve the pressure of the high-pressure oil tank;
and the second sending module is used for sending an unlocking instruction to the vehicle body controller if the pressure relief of the high-pressure oil tank is completed, wherein the unlocking instruction is used for indicating the vehicle body controller to open the oil tank lock of the high-pressure oil tank.
Optionally, the determining module is further configured to obtain a vehicle speed, a gear state and an engine state of the vehicle; and if the vehicle speed is less than or equal to a preset vehicle speed threshold value, the gear state is in a parking gear, and the engine state is in a flameout state, determining that the vehicle meets the first refueling condition.
Optionally, the apparatus further comprises:
and the third sending module is used for sending an isolating valve closing instruction to the engine controller according to the fuel tank cover closing signal sent by the vehicle body controller so as to control the engine controller to close the fuel tank isolating valve of the high-pressure fuel tank.
Optionally, the apparatus further comprises:
and the reminding module is used for sending an oil tank abnormity reminding signal if receiving the oil tank abnormity signal sent by the vehicle body controller, wherein the oil tank abnormity signal is sent when the vehicle body controller detects the motor state of the oil tank lock or the state of the microswitch of the oil tank lock is abnormal.
Optionally, the refueling request signal is sent to the vehicle controller by the vehicle-mounted controller when it is determined that the vehicle meets a second refueling condition;
and if the power state of the vehicle is the whole vehicle power-ON state or the accessory starting ACC state, the vehicle meets the second refueling condition.
Optionally, the high-pressure oil tank further comprises a pressure sensor, and the pressure sensor is electrically connected with the engine controller;
the device further comprises:
the first acquisition module is used for acquiring the oil tank pressure of the high-pressure oil tank, which is acquired by a pressure sensor in the high-pressure oil tank, through the engine controller;
the second acquisition module is used for acquiring a pressure difference value between the oil tank pressure and the atmospheric pressure;
and the determining module is used for determining that the pressure relief of the high-pressure oil tank is finished if the pressure difference value is less than or equal to a preset pressure threshold value.
In a fourth aspect, an embodiment of the present invention further provides a vehicle fuel tank lock control device, where the vehicle includes: engine controller, vehicle control unit and high-pressure oil tank, the high-pressure oil tank includes oil tank isolating valve, vehicle control unit with the engine controller electricity is connected, engine controller with the oil tank isolating valve electricity is connected, the device is applied to engine controller, the device includes:
the receiving module is used for receiving a pressure relief instruction sent by the vehicle control unit;
and the action execution module is used for opening an oil tank isolation valve of the high-pressure oil tank according to the pressure relief instruction so as to relieve the pressure of the high-pressure oil tank.
In a fifth aspect, an embodiment of the present invention further provides a vehicle control unit, including: a processor, a storage medium and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, when the vehicle control unit is operated, the processor and the storage medium communicate with each other through the bus, and the processor executes the machine-readable instructions to execute the steps of the vehicle fuel tank lock control method according to any one of the first aspect.
In a sixth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to execute the steps of the vehicle tank lock control method according to any one of the first aspect.
In a seventh aspect, an embodiment of the present invention further provides an engine controller, including: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating via the bus when the engine controller is running, the processor executing the machine-readable instructions to perform the steps of the vehicle tank lock control method according to the second aspect.
In an eighth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to execute the steps of the vehicle fuel tank lock control method according to the second aspect.
The invention has the beneficial effects that:
this application embodiment is through after receiving the request signal that refuels that the car machine controller sent, judge whether the vehicle satisfies the first condition of refueling that sets up in advance, if the vehicle satisfies first condition of refueling, then send the pressure release instruction to the engine controller, so that the oil tank isolating valve of high-pressure fuel tank is opened to the engine controller, realize the pressure release to high-pressure fuel tank, and after detecting high-pressure fuel tank pressure release and accomplish, send the instruction of unblanking to the automobile body controller, make the automobile body controller open the oil tank lock of high-pressure fuel tank. Whether the vehicle meets the first refueling condition or not is judged firstly, then the pressure relief is carried out on the high-pressure oil tank on the basis that the vehicle meets the first refueling condition, and finally the oil tank lock of the high-pressure oil tank is opened after the pressure relief is finished, so that a user can conveniently refuel the high-pressure oil tank, the condition that the oil tank lock and the oil tank isolating valve are opened together is avoided, the refuelling risk of the high-pressure oil tank is reduced, and the refuelling safety of the high-pressure oil tank is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a vehicle according to a method for controlling a fuel tank lock of the vehicle provided by the invention;
FIG. 2 is a schematic flow chart illustrating a method for controlling a fuel tank lock of a vehicle according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for controlling a fuel tank lock of a vehicle according to another embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a method for controlling a fuel tank lock of a vehicle according to another embodiment of the present invention;
fig. 5 is a schematic view of a vehicle fuel tank lock control device according to an embodiment of the present invention;
fig. 6 is a schematic view of a vehicle fuel tank lock control device according to another embodiment of the present invention;
fig. 7 is a schematic view of a vehicle fuel tank lock control device according to still another embodiment of the present invention;
fig. 8 is a schematic view of a vehicle fuel tank lock control device according to still another embodiment of the present invention;
fig. 9 is a schematic view of a vehicle fuel tank lock control device according to still another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a vehicle control unit according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an engine controller according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Fig. 1 is a schematic structural diagram of a vehicle according to a method for controlling a fuel tank lock of the vehicle provided by the invention; as shown in fig. 1, the vehicle may include:
The
In order to improve the safety of the vehicle during refueling, the
In an optional embodiment, if the central control display screen 170 or the fueling
After receiving the refueling request signal, the
In the process of releasing the pressure of the high-
If the
It should be noted that, if the vehicle does not meet the preset refueling condition or each component of the vehicle is abnormal, the user may be reminded through the
In addition, in practical application, the vehicle may be a hybrid vehicle, which is not limited in the embodiment of the present application.
Fig. 2 is a schematic flow chart of a method for controlling a vehicle tank lock according to an embodiment of the present invention, which is applied to the vehicle control unit shown in fig. 1, and as shown in fig. 2, the method includes:
In order to improve the safety of refueling the high-pressure oil tank, the state of the vehicle can be judged before refueling, whether the vehicle meets the preset first refueling condition or not is determined, and safety accidents in the refueling process are avoided.
In an optional embodiment, the vehicle controller of the vehicle may receive the refueling request signal sent by the vehicle-mounted controller, and determine whether the state information of the vehicle meets a preset first refueling condition according to the state information (such as vehicle speed, vehicle gear, engine state, and the like) of the vehicle obtained through real-time monitoring, so as to determine whether the vehicle meets the first refueling condition.
If the vehicle meets the first fueling condition, indicating that the vehicle is currently safe to refuel, then step 202 may be performed. However, if the vehicle does not satisfy the first refueling condition, which indicates that the current state of the vehicle is not matched with the state required for safe refueling, the vehicle cannot be refueled, and the user can be reminded through the central control display screen of the vehicle that the current vehicle does not satisfy the first refueling condition, so that the user can adjust the state of the vehicle and initiate a refueling request again.
If the vehicle satisfies first refueling condition, then can step down the high pressure in the high-pressure oil tank for pressure in the high-pressure oil tank is close to or equals with atmospheric pressure, avoids refueling the in-process, and the too high pressure in the high-pressure oil tank leads to the safety problem.
In an optional embodiment, if the vehicle controller determines that the vehicle meets the first refueling condition, a pressure relief instruction may be generated according to the received refueling request signal, and the pressure relief instruction is sent to the engine controller, so that the engine controller may open a tank isolation valve of the high-pressure tank according to the pressure relief instruction to relieve the pressure of the high-pressure tank.
And step 203, if the pressure relief of the high-pressure oil tank is detected to be completed, sending an unlocking instruction to the vehicle body controller, wherein the unlocking instruction is used for indicating the vehicle body controller to unlock an oil tank lock of the high-pressure oil tank.
If the pressure relief of the high-pressure oil tank of the vehicle controller is finished, it is indicated that the difference value between the pressure in the high-pressure oil tank and the atmospheric pressure is smaller than or equal to the preset pressure threshold value, the vehicle controller can control the vehicle to open an oil tank lock of the high-pressure oil tank, so that a user can conveniently refuel the high-pressure oil tank.
In an optional embodiment, the vehicle control unit may compare the pressure in the high-pressure oil tank with the atmospheric pressure in real time, and if the pressure in the high-pressure oil tank is close to or equal to the atmospheric pressure, it indicates that the pressure relief of the high-pressure oil tank is completed, and the oil tank lock may be opened to refuel.
Correspondingly, the vehicle control unit can generate an unlocking instruction and send the unlocking instruction to the vehicle body controller, so that the vehicle body controller can receive and unlock the fuel tank lock of the high-pressure fuel tank according to the unlocking instruction, and a user can conveniently refuel the high-pressure fuel tank.
It should be noted that, in practical application, whether the pressure relief of the high-pressure oil tank is completed or not may be detected by the engine controller, and if the pressure relief is completed, a pressure relief completion signal may be generated and sent to the vehicle controller to inform that the pressure relief of the high-pressure oil tank of the vehicle controller is completed.
Correspondingly, the vehicle control unit can receive a pressure relief completion signal fed back by the engine control unit, and then generates and sends an unlocking instruction to the vehicle body control unit, so that the vehicle body control unit can unlock the fuel tank lock.
To sum up, the vehicle fuel tank lock control method provided by the embodiment of the application judges whether the vehicle meets a preset first refueling condition after receiving a refueling request signal sent by a vehicle controller, and sends a pressure release instruction to an engine controller if the vehicle meets the first refueling condition so that the engine controller opens a fuel tank isolation valve of a high-pressure fuel tank, realizes the pressure release of the high-pressure fuel tank, and sends an unlocking instruction to a vehicle body controller after detecting that the pressure release of the high-pressure fuel tank is completed, so that the vehicle body controller opens a fuel tank lock of the high-pressure fuel tank. Whether the vehicle meets the first refueling condition or not is judged firstly, then the pressure relief is carried out on the high-pressure oil tank on the basis that the vehicle meets the first refueling condition, and finally the oil tank lock of the high-pressure oil tank is opened after the pressure relief is finished, so that a user can conveniently refuel the high-pressure oil tank, the condition that the oil tank lock and the oil tank isolating valve are opened together is avoided, the refuelling risk of the high-pressure oil tank is reduced, and the refuelling safety of the high-pressure oil tank is improved.
Fig. 3 is a schematic flow chart of a method for controlling a fuel tank lock of a vehicle according to another embodiment of the present invention, applied to an engine controller shown in fig. 1, and shown in fig. 3, the method includes:
and 301, receiving a pressure relief instruction sent by the vehicle control unit.
Wherein, this pressure release instruction is used for instructing engine controller to open the oil tank isolating valve of high-pressure oil tank to carry out the pressure release to high-pressure oil tank.
In order to improve the safety of refueling the high-pressure oil tank, the high pressure in the high-pressure oil tank can be reduced before refueling, the high-pressure oil tank in a high-pressure environment is prevented from being refueled, and therefore safety accidents are caused, the engine controller can receive a pressure relief instruction sent by the vehicle control unit, and in the subsequent step, the engine controller can relieve the pressure of the high-pressure oil tank according to the pressure relief instruction.
In an optional embodiment, the engine controller may receive information sent by the vehicle controller, identify the information according to an information identifier carried in the information, determine that the information identifier matches a pressure release identifier in a preset corresponding relationship, and determine that the information sent by the vehicle controller is a pressure release instruction if the pressure release identifier corresponds to the pressure release instruction.
And step 302, opening an oil tank isolation valve of the high-pressure oil tank according to the pressure relief instruction so as to relieve the pressure of the high-pressure oil tank.
After receiving the pressure relief instruction, the engine controller can relieve the pressure of the high-pressure oil tank of the vehicle, so that the pressure in the high-pressure oil tank is close to or equal to the atmospheric pressure, and a user can conveniently refuel the depressurized high-pressure oil tank.
In an optional embodiment, the engine controller can adjust the state of the oil tank isolation valve according to a pressure relief instruction, so that the oil tank isolation valve is switched to an open state from a closed state, after the oil tank isolation valve is switched to the open state, the closed space of the high-pressure oil tank is communicated with the activated carbon canister of the vehicle, the high-pressure oil tank is depressurized, and meanwhile, fuel steam can be adsorbed by the activated carbon canister of the vehicle to avoid being emitted to the air.
In summary, according to the vehicle fuel tank lock control method provided by the embodiment of the application, the fuel tank isolation valve of the high-pressure fuel tank is opened by receiving the pressure release instruction sent by the vehicle controller, so as to release the pressure of the high-pressure fuel tank, so that the vehicle controller controls the vehicle body controller to open the fuel tank lock of the high-pressure fuel tank after detecting that the pressure release of the high-pressure fuel tank is completed, and the fuel tank lock is opened. The oil tank isolation valve of the high-pressure oil tank is opened according to the pressure relief instruction, so that the pressure relief of the high-pressure oil tank is realized, the oil tank lock can be opened by the vehicle control unit after the pressure relief of the high-pressure oil tank is finished, the condition that the oil tank lock and the oil tank isolation valve are opened together is avoided, the risk of refueling the high-pressure oil tank is reduced, and the refueling safety of the high-pressure oil tank is improved.
Fig. 4 is a schematic flow chart of a vehicle tank lock control method according to another embodiment of the present invention, applied to the vehicle controller and the engine controller shown in fig. 1, and as shown in fig. 4, the method includes:
step 401, if a refueling request signal sent by a vehicle-mounted controller is received, the vehicle controller judges whether the vehicle meets a preset first refueling condition.
In order to improve the safety of refueling the high-pressure oil tank, whether the vehicle meets preset refueling conditions can be judged before refueling, whether the vehicle can refuel the high-pressure oil tank in the current state is determined according to the judgment result, and whether the vehicle meets first refueling conditions can be judged through the vehicle control unit.
Since the vehicle may include the states of the plurality of components, the determination may be made based on at least one of the states of the plurality of components in determining whether the vehicle satisfies the first refueling condition.
Optionally, in the process of determining whether the vehicle meets the first refueling condition, the vehicle controller may obtain a vehicle speed, a gear state and an engine state of the vehicle, and if the vehicle speed is less than or equal to a preset vehicle speed threshold, the gear state is in a parking gear, and the engine state is in a flameout state, it may be determined that the vehicle meets the first refueling condition.
Correspondingly, the first refueling condition may be: the vehicle speed is less than or equal to a preset vehicle speed threshold value, the gear state is in a parking gear, and the engine state is in a flameout state.
The vehicle speed is less than or equal to a preset vehicle speed threshold value so as to determine that the vehicle is in a static state; the gear state is a parking gear so as to determine that the vehicle is in a static state; in addition, the engine state is a key-off state, or to determine that the engine is in a non-operating state.
It should be noted that the refueling request signal may be sent by the vehicle controller to the vehicle controller when the vehicle is determined to meet the second refueling condition. If the power state of the vehicle is the ON state of the whole vehicle or the ACC state of the starting accessory, the vehicle meets a second refueling condition; and if the power supply state of the vehicle is a flameout state or the whole vehicle is in a driving-capable state, the vehicle does not meet the second refueling condition.
That is, after detecting the refueling request operation triggered by the user, the vehicle-mounted controller may first determine whether the vehicle meets the second refueling condition, and if so, generate a refueling request signal according to the refueling request operation, and send the refueling request signal to the vehicle controller.
The refueling request operation triggered by the user can be selection operation of a refueling option in the central control display screen or selection operation of a refueling key of a vehicle, and the refueling request operation is not limited in the embodiment of the application.
In practical applications, the driving-capable state of the entire vehicle may be the Ready state, and the OFF state may be the OFF state.
And step 402, if the vehicle meets a first refueling condition, the vehicle controller sends a pressure relief instruction to the engine controller.
Wherein, this pressure release instruction is used for instructing engine controller to open the oil tank isolating valve of high-pressure oil tank to carry out the pressure release to high-pressure oil tank.
And step 403, the engine controller receives a pressure relief instruction sent by the vehicle control unit.
And step 404, the engine controller opens an oil tank isolation valve of the high-pressure oil tank according to the pressure relief instruction so as to relieve the pressure of the high-pressure oil tank.
And 405, judging whether the pressure relief of the high-pressure oil tank is finished by the vehicle control unit.
After the vehicle control unit sends a pressure relief instruction to the engine controller, the vehicle control unit can acquire the oil tank pressure acquired by the pressure sensor in the high-pressure oil tank through the engine controller, so that the high-pressure oil tank is monitored, whether the pressure relief of the high-pressure oil tank is completed or not is judged, and the subsequent steps are executed according to the judgment result.
Optionally, the vehicle control unit may obtain, through the engine controller, an oil tank pressure of the high-pressure oil tank collected by the pressure sensor in the high-pressure oil tank, and obtain a pressure difference between the oil tank pressure and atmospheric pressure, and if the pressure difference is smaller than or equal to a preset pressure threshold, it is determined that the pressure relief of the high-pressure oil tank is completed.
In an optional embodiment, the vehicle control unit may obtain a pressure parameter in the high-pressure oil tank through a pressure sensor in the high-pressure oil tank, compare the obtained pressure parameter with atmospheric pressure, obtain a difference between the pressure parameter and the atmospheric pressure, and then determine whether the difference is less than or equal to a preset pressure threshold.
If the difference is smaller than or equal to a preset pressure threshold, the pressure relief of the high-pressure oil tank is finished.
Of course, in practical application, the pressure parameter detected by the pressure sensor may be compared with a preset pressure calibration value, and if the pressure parameter is less than or equal to the pressure calibration value, it may also be determined that the pressure relief of the high-pressure oil tank is completed.
However, if the pressure sensor fails and cannot accurately detect the pressure parameter in the high-pressure oil tank, whether the pressure relief is finished or not can be judged according to the duration time of the pressure relief process. For example, the timing may be started from the opening of the tank isolation valve, and if the duration is greater than or equal to the calibrated pressure relief duration, it may be determined that the pressure relief of the high-pressure tank is completed.
In addition, if the tank isolation valve fails, the user may be reminded that refueling of the vehicle is currently prohibited and the vehicle may be checked and maintained when the current state of the tank isolation valve is an Invalid (invaid) state and an action of opening the tank isolation valve is not performed.
Further, if the oil tank isolation valve fails, the current state of the oil tank isolation valve is an Invalid (invaid) state, and whether pressure relief of the high-pressure oil tank is completed is judged currently, a pressure parameter detected by the pressure sensor can be acquired after a preset time, if the pressure parameter is smaller than or equal to the pressure calibration value, it can be determined that pressure relief of the high-pressure oil tank is completed, but if the pressure parameter is larger than the pressure calibration value, a user can be reminded that the vehicle fails, refueling is forbidden, and the user is reminded to check and maintain the vehicle.
And 406, if the pressure relief of the high-pressure oil tank is detected to be completed, the vehicle control unit sends an unlocking instruction to the vehicle body controller, and the unlocking instruction is used for indicating the vehicle body controller to unlock an oil tank lock of the high-pressure oil tank.
And step 407, the vehicle controller sends an isolation valve closing instruction to the engine controller according to the fuel tank cover closing signal sent by the vehicle body controller so as to control the engine controller to close the fuel tank isolation valve of the high-pressure fuel tank.
After the high-pressure oil tank is filled with oil, a user can trigger the operation of closing the oil tank cover, then the vehicle body controller can detect the operation of closing the oil tank cover triggered by the user, generate an oil tank cover closing signal and send the oil tank cover closing signal to the vehicle controller, so that the vehicle controller controls the engine controller to close the oil tank isolating valve of the high-pressure oil tank.
In an optional embodiment, if the vehicle controller receives a tank cap closing signal sent by the vehicle body controller, which indicates that the user has finished filling the high-pressure oil tank, the vehicle controller may close the tank isolation valve of the high-pressure oil tank, and may generate and send an isolation valve closing instruction to the engine controller.
Correspondingly, after the engine controller receives the closing instruction of the isolation valve, the state of the oil tank isolation valve can be adjusted again according to the closing instruction of the isolation valve, so that the oil tank isolation valve is switched from the opening state to the closing state, the high-pressure oil tank is isolated from the external environment, and a closed space is formed.
It should be noted that, in practical applications, after the user finishes refueling the high-pressure oil tank, the user may forget to close the oil tank cap of the high-pressure oil tank, and the vehicle body controller may detect that the user does not close the oil tank cap, and send an oil tank abnormality signal to the vehicle controller, so that the vehicle controller reminds the user through the instrument panel according to the oil tank abnormality signal.
Optionally, if an oil tank abnormality signal sent by the vehicle body controller is received, the vehicle controller may send an oil tank abnormality reminding signal. The oil tank abnormal signal is sent by the vehicle body controller when the motor state of the oil tank lock or the micro switch state of the oil tank lock is detected to be abnormal.
In an alternative embodiment, the vehicle body controller may monitor a motor state of the fuel tank lock or a micro switch state of the fuel tank lock and a state of the fuel tank isolation valve, and determine whether the vehicle is currently in a refueling stage, and if it is detected that the vehicle is running or in a runnable state and the motor state of the fuel tank lock or the micro switch state of the fuel tank lock is in an open state, it may be determined that the user does not close the fuel tank cap, so that a fuel tank abnormality signal may be generated and transmitted to the vehicle controller.
Correspondingly, the vehicle control unit can generate an oil tank abnormity reminding signal after receiving the oil tank abnormity signal, and the oil tank abnormity reminding signal is displayed to a user through an instrument panel of the vehicle, so that the user can close the oil tank cover.
It should be noted that the above-described method of detecting whether the fuel lid is not closed may be used to detect the refueling system of the vehicle and determine whether the refueling system of the vehicle is abnormal. If the motor state of the oil tank lock is detected to be in an abnormal opening state, the micro switch of the oil tank lock is detected to be in an abnormal opening state, or the oil tank isolating valve is detected to be in a stuck opening fault, the fact that the refueling system of the vehicle is abnormal can be determined, and a user is reminded to overhaul and maintain the vehicle.
To sum up, the vehicle fuel tank lock control method provided by the embodiment of the application judges whether the vehicle meets a preset first refueling condition after receiving a refueling request signal sent by a vehicle controller, and sends a pressure release instruction to an engine controller if the vehicle meets the first refueling condition so that the engine controller opens a fuel tank isolation valve of a high-pressure fuel tank, realizes the pressure release of the high-pressure fuel tank, and sends an unlocking instruction to a vehicle body controller after detecting that the pressure release of the high-pressure fuel tank is completed, so that the vehicle body controller opens a fuel tank lock of the high-pressure fuel tank. Whether the vehicle meets the first refueling condition or not is judged firstly, then the pressure relief is carried out on the high-pressure oil tank on the basis that the vehicle meets the first refueling condition, and finally the oil tank lock of the high-pressure oil tank is opened after the pressure relief is finished, so that a user can conveniently refuel the high-pressure oil tank, the condition that the oil tank lock and the oil tank isolating valve are opened together is avoided, the refuelling risk of the high-pressure oil tank is reduced, and the refuelling safety of the high-pressure oil tank is improved.
Fig. 5 is a schematic view of a vehicle fuel tank lock control device according to an embodiment of the present invention, and as shown in fig. 5, the device specifically includes:
a determining
a
a
Optionally, the determining
Optionally, referring to fig. 6, the apparatus further includes:
a
Optionally, referring to fig. 7, the apparatus further includes:
and the reminding
Optionally, the refueling request signal is sent to the vehicle controller by the vehicle controller when it is determined that the vehicle meets the second refueling condition;
and if the power state of the vehicle is the whole vehicle power-ON state or the accessory starting ACC state, the vehicle meets the second refueling condition.
Optionally, the high-pressure oil tank further comprises a pressure sensor, and the pressure sensor is electrically connected with the engine controller;
referring to fig. 8, the apparatus further comprises:
a first obtaining module 506, configured to obtain, by the engine controller, a tank pressure of the high-pressure oil tank, which is collected by a pressure sensor in the high-pressure oil tank;
a second obtaining module 507, configured to obtain a pressure difference between the tank pressure and atmospheric pressure;
and a determining module 508, configured to determine that the pressure relief of the high-pressure oil tank is completed if the pressure difference is smaller than or equal to a preset pressure threshold.
To sum up, the vehicle oil tank lock control device that this application embodiment provided judges whether the vehicle satisfies the first condition of refueling that sets up in advance through after receiving the request signal that refuels that the car machine controller sent, if the vehicle satisfies the first condition of refueling, then sends the pressure release instruction to the engine control ware to the oil tank isolating valve of high-pressure oil tank is opened to the engine control ware, realizes the pressure release to high-pressure oil tank, and after detecting high-pressure oil tank pressure release and accomplishing, sends the instruction of unblanking to the automobile body controller, makes the automobile body controller open the oil tank lock of high-pressure oil tank. Whether the vehicle meets the first refueling condition or not is judged firstly, then the pressure relief is carried out on the high-pressure oil tank on the basis that the vehicle meets the first refueling condition, and finally the oil tank lock of the high-pressure oil tank is opened after the pressure relief is finished, so that a user can conveniently refuel the high-pressure oil tank, the condition that the oil tank lock and the oil tank isolating valve are opened together is avoided, the refuelling risk of the high-pressure oil tank is reduced, and the refuelling safety of the high-pressure oil tank is improved.
Fig. 9 is a schematic view of a vehicle fuel tank lock control device according to an embodiment of the present invention, and as shown in fig. 9, the device specifically includes:
a
and an
To sum up, the vehicle oil tank lock control device provided by the embodiment of the application opens the oil tank isolation valve of the high-pressure oil tank by receiving the pressure release instruction sent by the vehicle control unit so as to release the pressure of the high-pressure oil tank, so that the vehicle control unit controls the vehicle body controller to open the oil tank lock of the high-pressure oil tank after detecting that the pressure release of the high-pressure oil tank is completed, and the oil tank lock is opened. The oil tank isolation valve of the high-pressure oil tank is opened according to the pressure relief instruction, so that the pressure relief of the high-pressure oil tank is realized, the oil tank lock can be opened by the vehicle control unit after the pressure relief of the high-pressure oil tank is finished, the condition that the oil tank lock and the oil tank isolation valve are opened together is avoided, the risk of refueling the high-pressure oil tank is reduced, and the refueling safety of the high-pressure oil tank is improved.
The above-mentioned apparatus is used for executing the method provided by the foregoing embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 10 is a schematic structural diagram of a vehicle control unit according to an embodiment of the present invention, where the vehicle control unit may be a computing device with a vehicle fuel tank lock control function.
This vehicle control unit includes: a
The
Optionally, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to execute the method embodiment executed by the vehicle control unit in fig. 2 or fig. 4.
Fig. 11 is a schematic structural diagram of an engine controller according to an embodiment of the present invention, where the engine controller may be a computing device with a function of controlling a fuel tank lock of a vehicle.
The engine controller includes: a processor 1101, a storage medium 1102, and a bus 1103.
The storage medium 1102 stores machine-readable instructions executable by the processor 1101, when the engine controller is running, the processor 1101 communicates with the storage medium 1102 via the bus 1103, and the processor 1101 executes the machine-readable instructions to perform the method embodiments performed by the engine controller of fig. 3 or fig. 4. The specific implementation and technical effects are similar, and are not described herein again.
Optionally, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to execute the method embodiment executed by the engine controller in fig. 3 or fig. 4.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
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