Oil supply control method, device and equipment for vehicle, storage medium and program product

Abstract

The invention particularly relates to an oil supply control method, device and equipment of a vehicle, a storage medium and a program product, and the method comprises the steps that the current engine rotating speed, the current water temperature and the current air inflow of the vehicle are obtained, and on the basis of the current engine rotating speed, the current water temperature and the current air inflow, a special oil cut-off request is sent to a vehicle control unit under the condition that it is judged that the vehicle meets a preset oil cut-off mode enabling condition; when the vehicle controller judges that the vehicle meets the preset fuel cut activation condition, the air inflow of the engine is controlled to be adjusted from the first air inflow to the second air inflow through an engine control unit of the vehicle, the fuel cut action is executed, and under the condition that the vehicle meets the preset fuel supply recovery condition, the fuel cut action is executed. And an oil supply recovery pre-instruction is sent to the engine control unit through the vehicle control unit, so that the air inflow of the engine is controlled to be adjusted from the second air inflow to the first air inflow through the engine control unit, and the oil supply recovery action is executed. Therefore, the problems of long post-oxygen diagnosis period, low GPF regeneration efficiency and the like caused by insufficient oil cut-off working conditions are solved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle fuel supply control method, device, equipment, storage medium and program product. Background Art

[0002] To meet the emission regulations for light vehicles, the vehicle driving cycle must have post-oxygen diagnosis and GPF fuel cut-off regeneration functions, which are activated under fuel cut-off conditions.

[0003] In related technologies, for traditional fuel vehicles, the engine will trigger a fuel cutoff during braking or coasting to decelerate the vehicle and conserve fuel. For P2 hybrid vehicles, to ensure optimal energy management, the engine will shut down when the battery's State of Charge (SOC) meets usage requirements. However, if the battery temperature is too high or too low, or the SOC is extremely high, resulting in a weak charging capacity, the engine will continue to operate while cutting off fuel to maintain vehicle performance.

[0004] However, in the regular driving cycle of the P2 configuration, the engine has fewer fuel cut-off conditions, which cannot meet the needs of post-oxygen diagnosis and GPF fuel cut-off regeneration; in regular fuel cut-off conditions, the engine intake volume is the minimum intake volume (only the intake volume that can maintain the engine's own operation), the post-oxygen diagnosis cycle is long, and the GPF regeneration efficiency is low, which needs to be solved urgently. Summary of the Invention

[0005] The present application provides a vehicle fuel supply control method, device, equipment, storage medium and program product to solve problems such as long post-oxygen diagnosis cycle and low GPF regeneration efficiency caused by insufficient fuel cut-off conditions.

[0006] A first embodiment of the present application provides a vehicle fuel supply control method, comprising the following steps: Get the vehicle's current engine speed, current water temperature, and current air intake volume; When it is determined based on the current engine speed, the current water temperature, and the current intake air volume that the vehicle satisfies a preset fuel cutoff mode enabling condition, sending a special fuel cutoff request to a vehicle controller, so that when the vehicle controller determines that the vehicle satisfies the preset fuel cutoff activation condition, the engine control unit of the vehicle controls the engine air intake from a first intake air volume to a second intake air volume, executes a fuel cutoff action, and determines whether the vehicle satisfies a preset fuel supply resumption condition; When the vehicle meets the preset refueling resumption conditions, the vehicle controller sends a refueling resumption pre-instruction to the engine control unit, so that the engine control unit controls the intake volume of the engine from the second intake volume to the first intake volume, and performs the refueling resumption action.

[0007] Optionally, when executing the fuel cut-off action, the method further includes: The engine control unit executes a post-oxygen diagnosis function and / or a GPF fuel cut-off regeneration function.

[0008] Optionally, determining whether the vehicle meets a preset refueling condition includes: Determining whether the vehicle has a preset rapid acceleration request, and / or whether the rear oxygen diagnosis function is completed, and / or whether the GPF fuel cut-off regeneration function is completed; If the vehicle has the preset rapid acceleration request, and / or the post-oxygen diagnosis function is completed, and / or the GPF fuel cut-off regeneration function is completed, it is determined that the vehicle meets the preset fuel supply resumption condition.

[0009] Optionally, controlling the engine intake amount from the second intake amount to the first intake amount by the engine control unit and performing a fuel supply recovery action includes: determining, by the engine control unit, whether the intake air volume of the engine has been adjusted to the first intake air volume; If the air intake volume of the engine has been adjusted to the first air intake volume, the engine sends an air intake volume adjustment end instruction to the vehicle controller, which then sends a fuel supply resumption instruction to the engine control unit via the vehicle controller, so that the engine control unit executes a fuel supply resumption action based on the fuel supply resumption instruction; Furthermore, if the air intake volume of the engine is not adjusted to the first air intake volume, the air intake volume adjustment time of the engine is obtained, and it is determined whether the air intake volume adjustment time of the engine is greater than or equal to the preset time length. When the air intake volume adjustment time of the engine is greater than or equal to the preset time length, the air filling volume adjustment end instruction is sent to the vehicle controller through the engine, and the fuel supply resumption instruction is sent to the engine control unit through the vehicle controller, so that the engine control unit performs the fuel supply resumption action based on the fuel supply resumption instruction.

[0010] Optionally, determining whether the vehicle has the preset rapid acceleration request includes: Obtaining the current pedal opening and current vehicle speed of the vehicle; When the current pedal opening is greater than or equal to a preset pedal opening threshold, and the current vehicle speed is greater than or equal to a preset vehicle speed threshold, it is determined that the vehicle has the preset rapid acceleration request.

[0011] A second embodiment of the present application provides a fuel supply control device for a vehicle, comprising: An acquisition module is used to obtain the vehicle's current engine speed, current water temperature, and current air intake volume; a fuel cut-off module, configured to, upon determining based on the current engine speed, the current water temperature, and the current intake air volume that the vehicle satisfies a preset fuel cut-off mode enabling condition, send a special fuel cut-off request to a vehicle controller, so that when the vehicle controller determines that the vehicle satisfies the preset fuel cut-off activation condition, the engine intake air volume is controlled by the vehicle's engine control unit to adjust from a first intake air volume to a second intake air volume, execute a fuel cut-off action, and determine whether the vehicle satisfies a preset fuel supply resumption condition; The fuel supply resumption module is used to send a fuel supply resumption pre-instruction to the engine control unit through the vehicle controller when the vehicle meets the preset fuel supply resumption conditions, so as to control the engine's intake volume from the second intake volume to the first intake volume through the engine control unit and perform the fuel supply resumption action.

[0012] Optionally, when executing the fuel cut-off action, the fuel cut-off module is further configured to: The engine control unit executes a post-oxygen diagnosis function and / or a GPF fuel cut-off regeneration function.

[0013] Optionally, the oil cut-off module is specifically configured to: Determining whether the vehicle has a preset rapid acceleration request, and / or whether the rear oxygen diagnosis function is completed, and / or whether the GPF fuel cut-off regeneration function is completed; If the vehicle has the preset rapid acceleration request, and / or the post-oxygen diagnosis function is completed, and / or the GPF fuel cut-off regeneration function is completed, it is determined that the vehicle meets the preset fuel supply resumption condition.

[0014] Optionally, the oil supply recovery module is specifically used to: determining, by the engine control unit, whether the intake air volume of the engine has been adjusted to the first intake air volume; If the air intake volume of the engine has been adjusted to the first air intake volume, the engine sends an air intake volume adjustment end instruction to the vehicle controller, which then sends a fuel supply resumption instruction to the engine control unit via the vehicle controller, so that the engine control unit executes a fuel supply resumption action based on the fuel supply resumption instruction; Furthermore, if the air intake volume of the engine is not adjusted to the first air intake volume, the air intake volume adjustment time of the engine is obtained, and it is determined whether the air intake volume adjustment time of the engine is greater than or equal to the preset time length. When the air intake volume adjustment time of the engine is greater than or equal to the preset time length, the air filling volume adjustment end instruction is sent to the vehicle controller through the engine, and the fuel supply resumption instruction is sent to the engine control unit through the vehicle controller, so that the engine control unit performs the fuel supply resumption action based on the fuel supply resumption instruction.

[0015] Optionally, the oil cut-off module is specifically configured to: Obtaining the current pedal opening and current vehicle speed of the vehicle; When the current pedal opening is greater than or equal to a preset pedal opening threshold, and the current vehicle speed is greater than or equal to a preset vehicle speed threshold, it is determined that the vehicle has the preset rapid acceleration request.

[0016] A third aspect of the present application provides an electronic device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being configured to execute the vehicle fuel supply control method as described in the above embodiment.

[0017] A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the vehicle fuel supply control method as described in the above embodiment.

[0018] A fifth aspect of the present application provides a computer program product, which stores a computer program. When the program is executed by a processor, it implements the vehicle fuel supply control method as described in the above embodiment.

[0019] Thus, the embodiment of the present application obtains the vehicle's current engine speed, current water temperature, and current intake air volume, and based on this, determines that the vehicle meets the preset fuel cutoff mode enable conditions. It then sends a special fuel cutoff request to the vehicle controller. When the vehicle controller determines that the vehicle meets the preset fuel cutoff activation conditions, the vehicle's engine control unit controls the engine's intake air volume from the first intake air volume to the second intake air volume and executes the fuel cutoff action. Furthermore, when the vehicle meets the preset fuel restoration conditions, the vehicle controller sends a fuel restoration pre-instruction to the engine control unit. The engine control unit controls the engine's intake air volume from the second intake air volume to the first intake air volume and executes the fuel restoration action. This solves the problems of long post-oxygen diagnosis cycles and low GPF regeneration efficiency caused by insufficient fuel cutoff operating conditions.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 This is a flow chart of a vehicle fuel supply control method provided according to an embodiment of the present application; Figure 2 A schematic diagram of a P2 hybrid system of a vehicle fuel supply control method provided according to one embodiment of the present application; Figure 3 A schematic diagram of a fuel supply control device for a vehicle provided according to an embodiment of the present application; Figure 4 A schematic diagram of the structure of an electronic device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0023] The following describes, with reference to the accompanying drawings, a vehicle fuel supply control method, apparatus, device, storage medium, and program product according to embodiments of the present application. To address the issues mentioned in the background art above, such as the long post-oxygen diagnosis cycle and low GPF regeneration efficiency caused by insufficient fuel cut-off conditions, the present application provides a vehicle fuel supply control method. In this method, embodiments of the present application obtain the vehicle's current engine speed, current water temperature, and current intake air volume. Based on these, if the vehicle determines that the vehicle meets preset fuel cut-off mode enable conditions, the method sends a special fuel cut-off request to the vehicle controller. If the vehicle controller determines that the vehicle meets the preset fuel cut-off activation conditions, the vehicle's engine control unit controls the engine's intake air volume from a first intake air volume to a second intake air volume and executes a fuel cut-off action. Furthermore, if the vehicle meets the preset fuel resume conditions, the vehicle controller sends a fuel resume pre-command to the engine control unit, which controls the engine's intake air volume from the second intake air volume to the first intake air volume and executes a fuel resume action. This solves the issues of the long post-oxygen diagnosis cycle and low GPF regeneration efficiency caused by insufficient fuel cut-off conditions.

[0024] Specifically, Figure 1 A flow chart of a vehicle fuel supply control method provided in an embodiment of the present application.

[0025] Before introducing the fuel supply control method of the vehicle according to the embodiment of the present application, a brief introduction will be given to the P2 hybrid system according to the embodiment of the present application.

[0026] Specifically, if Figure 2 As shown, Figure 2 This is a schematic diagram of a P2 hybrid system of a vehicle fuel supply control method according to an embodiment of the present application; the P2 hybrid system mainly consists of an engine, a disconnect clutch (K0 Clutch), a high-voltage drive motor, a power battery, a transmission, a transfer case, and other components.

[0027] like Figure 1 As shown, the vehicle fuel supply control method includes the following steps: In step S101 , the current engine speed, current water temperature, and current intake air volume of the vehicle are acquired. Specifically, it is usually necessary to use a dedicated scanning tool or device through the vehicle's OBD (On-Board Diagnostics) port to read this information; obtain the current power system engine speed to ensure that it is within the appropriate speed range (such as 1500-4000rpm); obtain the current water temperature to confirm whether it is at the normal operating temperature (such as >70°C) to avoid false triggering of cold engine conditions; obtain the current intake volume as the intake adjustment reference value to provide a basis for subsequent calculations.

[0028] In step S102, when it is determined that the vehicle meets the preset fuel cut-off mode enabling conditions based on the current engine speed, the current water temperature and the current intake air volume, a special fuel cut-off request is sent to the vehicle controller, so that when the vehicle controller determines that the vehicle meets the preset fuel cut-off activation conditions, the engine's intake air volume is controlled by the vehicle's engine control unit to be adjusted from the first intake air volume to the second intake air volume, and the fuel cut-off action is performed, and it is determined whether the vehicle meets the preset fuel supply resumption conditions.

[0029] Specifically, the engine control unit (ECU) sends a special fuel cut-off request instruction to the vehicle control unit (VCU) through the CAN (Controller Area Network) line. The VCU determines whether the vehicle operating condition meets the special fuel cut-off activation conditions. If the conditions are not met, the monitoring is continued and the vehicle controller continues to determine whether the vehicle operating condition meets the special fuel cut-off activation conditions. If the conditions are met, the vehicle controller sends the fuel cut-off instruction to the engine control unit through the CAN line. The engine control unit controls the engine intake volume from the first intake volume to the second intake volume, and executes the fuel cut-off instruction. The engine cuts off fuel. At this time, the vehicle's drivability and power torque output are borne by the drive motor.

[0030] Optionally, in some embodiments, when executing the fuel cut-off action, it also includes: executing a post-oxygen diagnosis function and / or a GPF fuel cut-off regeneration function through an engine control unit.

[0031] Understandably, during a fuel cut, the engine control unit monitors data from the rear oxygen sensor to assess the efficiency of the catalytic converter, ensuring the proper functioning of the emissions control system and promptly identifying and correcting any potential issues. To clean carbon deposits and other deposits from the GPF (Gasoline Particulate Filter), regular "regeneration" is required, typically involving increasing exhaust temperatures to burn off these deposits. During the fuel cut phase, the lack of fuel combustion creates an opportunity for increased exhaust temperatures, facilitating GPF regeneration. Both the rear oxygen diagnostic function and the GPF fuel cut regeneration function are designed to improve the vehicle's overall environmental performance and extend the life of key components. They also allow the vehicle to more effectively manage and reduce harmful emissions without sacrificing drivability.

[0032] Optionally, in some embodiments, determining whether the vehicle meets the preset conditions for resuming fuel supply includes: determining whether the vehicle has a preset rapid acceleration request, and / or whether the post-oxygen diagnostic function has been completed, and / or whether the GPF fuel cut-off regeneration function has been completed; if the vehicle has a preset rapid acceleration request, and / or the post-oxygen diagnostic function has been completed, and / or the GPF fuel cut-off regeneration function has been completed, then it is determined that the vehicle meets the preset conditions for resuming fuel supply.

[0033] Optionally, in some embodiments, determining whether the vehicle has a preset rapid acceleration request includes: obtaining the vehicle's current pedal opening and current vehicle speed; when the current pedal opening is greater than or equal to a preset pedal opening threshold, and the current vehicle speed is greater than or equal to a preset vehicle speed threshold, determining that the vehicle has a preset rapid acceleration request.

[0034] It can be understood that the current pedal opening and current vehicle speed of the vehicle are obtained, and the VCU determines whether the driver's pedal opening is greater than or equal to the preset pedal opening threshold, and the vehicle speed is greater than or equal to the preset vehicle speed threshold. If the conditions are met, it indicates that the driver has a sudden acceleration request that requires the engine to output power. The VCU will then send the refueling pre-instruction to the ECU via the CAN line, and the engine post-oxygen diagnosis and / or GPF oil cut-off regeneration function will be terminated; if the vehicle does not have a preset sudden acceleration request, the ECU will determine whether the engine post-oxygen diagnosis and / or GPF oil cut-off regeneration function has been completed. If not, it will continue to monitor whether the vehicle has a preset sudden acceleration request.

[0035] In step S103, when the vehicle meets the preset conditions for resuming fuel supply, a resuming fuel supply pre-instruction is sent to the engine control unit through the vehicle controller, so as to control the engine's intake volume from the second intake volume to the first intake volume through the engine control unit, and perform the resuming fuel supply action.

[0036] Specifically, the embodiment of the present application effectively avoids the torque mutation and driving frustration caused by the direct resumption of fuel supply after the fuel cut-off, thereby improving the driving smoothness and comfort of the entire vehicle; at the same time, it takes into account the requirements of emission regulations, ensuring that after special working conditions such as GPF fuel cut-off regeneration or post-oxygen diagnosis are completed, the engine can safely and smoothly resume work, thereby ensuring the system's environmental performance and energy management efficiency.

[0037] Optionally, in some embodiments, the engine's intake volume is controlled by the engine control unit to be adjusted from the second intake volume to the first intake volume, and the fuel supply recovery action is performed, including: judging by the engine control unit whether the engine's intake volume has been adjusted to the first intake volume; if the engine's intake volume has been adjusted to the first intake volume, the engine sends an air filling adjustment end instruction to the vehicle controller, so that the vehicle controller sends the fuel supply recovery instruction to the engine control unit, so that the engine control unit performs the fuel supply recovery action based on the fuel supply recovery instruction; and, if the engine's intake volume is not adjusted to the first intake volume, the engine's intake volume adjustment time is obtained, and it is judged whether the engine's intake volume adjustment time is greater than or equal to a preset time length. When the engine's intake volume adjustment time is greater than or equal to the preset time length, the engine sends an air filling adjustment end instruction to the vehicle controller, so that the vehicle controller sends the fuel supply recovery instruction to the engine control unit, so that the engine control unit performs the fuel supply recovery action based on the fuel supply recovery instruction.

[0038] It is understood that the engine control unit controls the adjustment of the engine air intake volume from the second air intake volume to the first air intake volume. The engine control unit determines whether the engine air intake volume adjustment is complete. If not, it determines whether the engine air intake volume adjustment time is greater than or equal to a preset time. If not, it continues to adjust the air intake volume. If the adjustment is complete, that is, the engine air intake volume has been adjusted to the first air intake volume, the engine transmits a charge volume adjustment completion command to the VCU via the CAN line. The VCU transmits a fuel supply resumption command to the engine control unit via the CAN line. The engine control unit executes the fuel supply resumption action based on the fuel supply resumption command.

[0039] It should be noted that the rate of change from the first intake volume to the second intake volume and the rate of change from the second intake volume to the first intake volume during special fuel cut-off conditions can be calibrated based on factors such as the actual vehicle performance, the post-oxygen diagnostic rate, and the GPF fuel cut-off regeneration efficiency. The embodiments of this application are not limited to using a vehicle controller to obtain status signals from each control unit on the vehicle CAN bus network, send control requests to each control unit, and have each control unit perform corresponding control of each powertrain component. In actual applications, other controllers can be used to directly determine or control to achieve the desired goal.

[0040] Based on the description of the relevant embodiments, it can be understood that in the embodiments of the present application, in a normal driving cycle, a special fuel cut-off enable is triggered based on the post-oxygen diagnosis, GPF fuel cut-off regeneration requirements, and the vehicle's driving conditions; when the activation conditions of special operating conditions such as post-oxygen diagnosis and GPF fuel cut-off regeneration are met, the ECU controls the engine's air intake to adjust from the minimum air intake to the corresponding air intake, and executes the fuel cut-off. After the post-oxygen diagnosis and GPF fuel cut-off regeneration requirements are completed, or the driver steps on the accelerator to forcibly resume fuel supply, the engine's air intake is adjusted to the minimum air intake (only the air intake required to maintain the engine's own operation), and then the fuel supply is resumed. When the driver steps on the accelerator to forcibly resume fuel supply, during the process of the engine adjusting the air intake, the vehicle's power is output by the motor. After the fuel supply is resumed, the vehicle's power is coordinated by the motor and the engine.

[0041] Therefore, the embodiments of the present application can be applied to hybrid electric vehicles for special operating conditions such as post-oxygen diagnosis and GPF oil cut-off and regeneration to cut off and resume oil supply. The vehicle controller needs to obtain power system component status signals sent by the engine control unit, motor control unit, and transmission control unit on the vehicle's CAN bus network. These signals can monitor the actual engine and motor speed, actual engine and motor torque, etc. in real time, and determine the vehicle's current operating condition in real time. The vehicle controller then sends a control request to each control unit via the CAN bus network, and each control unit performs corresponding control on each power system component to achieve coordinated cooperation of the power system components during vehicle startup. Through the control of the embodiments of the present application, the completion time of post-oxygen diagnosis can be shortened, the efficiency of GPF oil cut-off and regeneration can be improved, and excessive engine output torque can be prevented from causing vehicle shaking.

[0042] According to the vehicle fuel supply control method proposed in an embodiment of the present application, the embodiment of the present application obtains the vehicle's current engine speed, current water temperature, and current intake air volume. Based on this, if the vehicle determines that the vehicle meets the preset fuel cut-off mode enable conditions, a special fuel cut-off request is sent to the vehicle controller. When the vehicle controller determines that the vehicle meets the preset fuel cut-off activation conditions, the vehicle's engine control unit controls the engine's intake air volume from a first intake air volume to a second intake air volume and executes the fuel cut-off action. When the vehicle meets the preset fuel supply resumption conditions, the vehicle controller sends a fuel supply resumption pre-instruction to the engine control unit, so that the engine control unit controls the engine's intake air volume from the second intake air volume to the first intake air volume and executes the fuel supply resumption action. This solves the problems of long post-oxygen diagnosis cycles and low GPF regeneration efficiency caused by insufficient fuel cut-off conditions.

[0043] Next, a fuel supply control device for a vehicle according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0044] Figure 3 It is a block diagram of a fuel supply control device for a vehicle according to an embodiment of the present application.

[0045] like Figure 3 As shown, the fuel supply control device 10 of the vehicle includes: an acquisition module 100 , a fuel cut-off module 200 and a fuel supply restoration module 300 .

[0046] The acquisition module 100 is used to obtain the current engine speed, current water temperature and current intake air volume of the vehicle; The fuel cut-off module 200 is configured to, upon determining based on the current engine speed, current water temperature, and current intake air volume that the vehicle satisfies a preset fuel cut-off mode enabling condition, send a special fuel cut-off request to the vehicle controller. When the vehicle controller determines that the vehicle satisfies the preset fuel cut-off activation condition, the module controls the engine's intake air volume to be adjusted from a first intake air volume to a second intake air volume via the vehicle's engine control unit, executes the fuel cut-off action, and determines whether the vehicle satisfies a preset fuel supply resumption condition. The fuel supply resumption module 300 is used to send a fuel supply resumption pre-instruction to the engine control unit through the vehicle controller when the vehicle meets the preset fuel supply resumption conditions, so as to control the engine's intake volume from the second intake volume to the first intake volume through the engine control unit and perform the fuel supply resumption action.

[0047] Optionally, when executing the fuel cut-off action, the fuel cut-off module 200 is further configured to: execute a post-oxygen diagnosis function and / or a GPF fuel cut-off regeneration function through the engine control unit.

[0048] Optionally, the fuel cut-off module 200 is specifically used to: determine whether the vehicle has a preset rapid acceleration request, and / or whether the post-oxygen diagnostic function has been completed, and / or whether the GPF fuel cut-off regeneration function has been completed; if the vehicle has a preset rapid acceleration request, and / or the post-oxygen diagnostic function has been completed, and / or the GPF fuel cut-off regeneration function has been completed, it is determined that the vehicle meets the preset fuel supply resumption conditions.

[0049] Optionally, the fuel supply recovery module 300 is specifically used to: determine whether the engine's air intake volume has been adjusted to a first air intake volume through the engine control unit; if the engine's air intake volume has been adjusted to the first air intake volume, the engine sends an air filling volume adjustment end instruction to the vehicle controller, so that the vehicle controller sends the fuel supply recovery instruction to the engine control unit, so that the engine control unit performs the fuel supply recovery action based on the fuel supply recovery instruction; and if the engine's air intake volume has not been adjusted to the first air intake volume, obtain the engine's air intake volume adjustment time, and determine whether the engine's air intake volume adjustment time is greater than or equal to a preset time length. When the engine's air intake volume adjustment time is greater than or equal to the preset time length, the engine sends an air filling volume adjustment end instruction to the vehicle controller, so that the vehicle controller sends the fuel supply recovery instruction to the engine control unit, so that the engine control unit performs the fuel supply recovery action based on the fuel supply recovery instruction.

[0050] Optionally, the fuel cutoff module 200 is specifically configured to obtain the vehicle's current pedal opening and current vehicle speed; and determine that the vehicle has a preset rapid acceleration request when the current pedal opening is greater than or equal to a preset pedal opening threshold, and the current vehicle speed is greater than or equal to a preset speed threshold. It should be noted that the aforementioned explanation of the vehicle fuel supply control method embodiment also applies to the vehicle fuel supply control device of this embodiment and will not be further elaborated here.

[0051] According to the vehicle fuel supply control device proposed in an embodiment of the present application, the embodiment of the present application obtains the vehicle's current engine speed, current water temperature, and current intake air volume. Based on this, if the vehicle determines that the vehicle meets the preset fuel cut-off mode enable conditions, a special fuel cut-off request is sent to the vehicle controller. When the vehicle controller determines that the vehicle meets the preset fuel cut-off activation conditions, the vehicle's engine control unit controls the engine's intake air volume from a first intake air volume to a second intake air volume and executes the fuel cut-off action. When the vehicle meets the preset fuel supply resumption conditions, the vehicle controller sends a fuel supply resumption pre-instruction to the engine control unit, which controls the engine's intake air volume from the second intake air volume to the first intake air volume and executes the fuel supply resumption action. This solves the problems of long post-oxygen diagnosis cycles and low GPF regeneration efficiency caused by insufficient fuel cut-off conditions.

[0052] Figure 4This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may include: Memory 401 , processor 402 , and computer programs stored in the memory 401 and executable on the processor 402 .

[0053] When the processor 402 executes the program, the vehicle fuel supply control method provided in the above embodiment is implemented.

[0054] Furthermore, the electronic device further includes: The communication interface 403 is used for communication between the memory 401 and the processor 402 .

[0055] The memory 401 is used to store computer programs that can be run on the processor 402 .

[0056] The memory 401 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0057] If the memory 401, processor 402, and communication interface 403 are implemented independently, the communication interface 403, memory 401, and processor 402 can be connected to each other via a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be divided into address buses, data buses, control buses, etc. For ease of representation, Figure 4 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0058] Optionally, in a specific implementation, if the memory 401, the processor 402 and the communication interface 403 are integrated on a chip, the memory 401, the processor 402 and the communication interface 403 can communicate with each other through an internal interface.

[0059] The processor 402 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0060] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned vehicle fuel supply control method.

[0061] An embodiment of the present application also provides a computer program product, which stores a computer program. When the program is executed by a processor, it implements the above vehicle fuel supply control method.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "N" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0064] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0065] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiment, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having logic gate circuits for implementing logical functions on data signals, an application-specific integrated circuit having suitable combinational logic gate circuits, a programmable gate array (PGA), a field-programmable gate array (FPGA), etc.

[0066] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

Claims

1. A vehicle fuel supply control method, characterized in that: The following steps are involved: Get the vehicle's current engine speed, current water temperature, and current air intake volume; When it is determined based on the current engine speed, the current water temperature, and the current intake air volume that the vehicle satisfies a preset fuel cutoff mode enabling condition, sending a special fuel cutoff request to a vehicle controller, so that when the vehicle controller determines that the vehicle satisfies the preset fuel cutoff activation condition, the engine control unit of the vehicle controls the engine air intake from a first intake air volume to a second intake air volume, executes a fuel cutoff action, and determines whether the vehicle satisfies a preset fuel supply resumption condition; When the vehicle meets the preset refueling resumption conditions, the vehicle controller sends a refueling resumption pre-instruction to the engine control unit, so that the engine control unit controls the intake volume of the engine from the second intake volume to the first intake volume, and performs the refueling resumption action.

2. The method according to claim 1, characterized in that When executing the fuel cut-off action, it also includes: The engine control unit executes a post-oxygen diagnosis function and / or a GPF fuel cut-off regeneration function.

3. The method according to claim 2, characterized in that The determining whether the vehicle meets a preset refueling condition includes: Determining whether the vehicle has a preset rapid acceleration request, and / or whether the rear oxygen diagnosis function is completed, and / or whether the GPF fuel cut-off regeneration function is completed; If the vehicle has the preset rapid acceleration request, and / or the post-oxygen diagnosis function is completed, and / or the GPF fuel cut-off regeneration function is completed, it is determined that the vehicle meets the preset fuel supply resumption condition.

4. The method according to claim 1, wherein The controlling, by the engine control unit, of adjusting the intake air volume of the engine from the second intake air volume to the first intake air volume and performing a fuel supply recovery action includes: determining, by the engine control unit, whether the intake air volume of the engine has been adjusted to the first intake air volume; If the air intake volume of the engine has been adjusted to the first air intake volume, the engine sends an air intake volume adjustment end instruction to the vehicle controller, which then sends a fuel supply resumption instruction to the engine control unit via the vehicle controller, so that the engine control unit executes a fuel supply resumption action based on the fuel supply resumption instruction; Furthermore, if the air intake volume of the engine is not adjusted to the first air intake volume, the air intake volume adjustment time of the engine is obtained, and it is determined whether the air intake volume adjustment time of the engine is greater than or equal to the preset time length. When the air intake volume adjustment time of the engine is greater than or equal to the preset time length, the air filling volume adjustment end instruction is sent to the vehicle controller through the engine, and the fuel supply resumption instruction is sent to the engine control unit through the vehicle controller, so that the engine control unit performs the fuel supply resumption action based on the fuel supply resumption instruction.

5. The method according to claim 3, characterized in that The determining whether the vehicle has the preset rapid acceleration request includes: Obtaining the current pedal opening and current vehicle speed of the vehicle; When the current pedal opening is greater than or equal to a preset pedal opening threshold, and the current vehicle speed is greater than or equal to a preset vehicle speed threshold, it is determined that the vehicle has the preset rapid acceleration request.

6. A fuel supply control device for a vehicle, characterized in that: include: An acquisition module is used to obtain the vehicle's current engine speed, current water temperature, and current air intake volume; a fuel cut-off module, configured to, upon determining based on the current engine speed, the current water temperature, and the current intake air volume that the vehicle satisfies a preset fuel cut-off mode enabling condition, send a special fuel cut-off request to a vehicle controller, so that when the vehicle controller determines that the vehicle satisfies the preset fuel cut-off activation condition, the engine intake air volume is controlled by the vehicle's engine control unit to adjust from a first intake air volume to a second intake air volume, execute a fuel cut-off action, and determine whether the vehicle satisfies a preset fuel supply resumption condition; The fuel supply resumption module is used to send a fuel supply resumption pre-instruction to the engine control unit through the vehicle controller when the vehicle meets the preset fuel supply resumption conditions, so as to control the engine's intake volume from the second intake volume to the first intake volume through the engine control unit and perform the fuel supply resumption action.

7. The device according to claim 6, characterized in that When executing the fuel cut-off action, the fuel cut-off module is further used to: The engine control unit executes a post-oxygen diagnosis function and / or a GPF fuel cut-off regeneration function.

8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the vehicle fuel supply control method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the fuel supply control method for a vehicle as described in any one of claims 1 to 6.

10. A computer program product, wherein the computer program product stores a computer program, characterized in that: When the program is executed by a processor, the fuel supply control method for a vehicle according to any one of claims 1 to 6 is implemented.

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