Method and device for monitoring required torque of hybrid electric vehicle

Abstract

The present invention discloses a method and device for monitoring demand torque of a hybrid vehicle. In order to monitor whether the demand torque calculated by a demand torque calculation module is correct, it is proposed to calculate a safety limit of the demand torque at a monitoring layer with a higher safety level. When the demand torque calculated by the demand torque calculation module exceeds the limit, it is considered that the demand torque calculation module has a calculation error, and the module is reset. If the demand torque calculated by the demand torque calculation module still exceeds the limit after the reset, the entire vehicle is controlled to be powered off urgently to avoid unexpected movement, reverse movement, unexpected acceleration, etc. of the hybrid vehicle, which may cause the vehicle to collide with people outside the vehicle or other vehicles, resulting in serious accidents such as casualties inside and outside the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of functional safety of automobile power systems, and more particularly to a method and device for monitoring required torque of a hybrid electric vehicle. Background Art

[0002] With the continuous consumption of energy, the development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, hybrid vehicles are driven by engines and / or motors.

[0003] The required output torque of the hybrid vehicle, namely the demand torque, is calculated by the demand torque calculation module. The demand torque calculation module sends a request message containing the demand torque to the engine and motor. After receiving the request message, the engine and motor respond to the request message to make the hybrid vehicle drive according to the demand torque.

[0004] However, the required torque calculation module may calculate an erroneous required torque, and the engine and motor may respond to the erroneous required torque, causing serious damage to the vehicle and resulting in a serious accident causing casualties.

[0005] Therefore, how to monitor whether the required torque calculated by the required torque calculation module is incorrect is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] In view of the above problems, the present invention is proposed to provide a method and device for monitoring the required torque of a hybrid vehicle to overcome or at least partially solve the above problems. The specific solution is as follows:

[0007] A method for monitoring required torque of a hybrid vehicle, the method comprising:

[0008] Obtain the required torque calculated by the required torque calculation module;

[0009] Determining whether the required torque exceeds a preset required torque safety limit;

[0010] When the required torque exceeds a preset required torque safety limit, a reset instruction is sent to the required torque calculation module, so that the required torque calculation module recalculates the required torque according to the reset instruction;

[0011] Obtaining the required torque recalculated by the required torque calculation module;

[0012] determining whether the recalculated required torque exceeds a preset required torque safety limit;

[0013] When the recalculated required torque exceeds a preset required torque safety limit, controlling the hybrid electric vehicle to power off urgently;

[0014] When the recalculated required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0015] Optionally, the method further includes:

[0016] When the required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0017] Optionally, before determining whether the required torque exceeds a preset required torque safety limit, the method further includes:

[0018] Obtain vehicle status information during safe driving of hybrid electric vehicles;

[0019] A required torque safety limit is calculated according to the vehicle state information.

[0020] Optionally, while the hybrid electric vehicle continues to travel, the method further includes:

[0021] Obtaining actual torque of the engine and the motor during driving of the hybrid vehicle;

[0022] Determining whether the actual torque of the engine and the motor exceeds a preset required torque safety limit;

[0023] When the actual torque of the engine and the motor exceeds a preset required torque safety limit, controlling the hybrid vehicle to shut down urgently;

[0024] When the actual torque of the engine and the motor does not exceed the preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0025] A hybrid electric vehicle demand torque monitoring device, the device comprising:

[0026] An acquisition unit, configured to acquire the required torque calculated by the required torque calculation module;

[0027] a determination unit, configured to determine whether the required torque exceeds a preset required torque safety limit;

[0028] a control unit, configured to send a reset instruction to the required torque calculation module when the required torque exceeds a preset required torque safety limit, so that the required torque calculation module recalculates the required torque according to the reset instruction;

[0029] The acquisition unit is further configured to acquire the required torque recalculated by the required torque calculation module;

[0030] The judging unit is further configured to judge whether the recalculated required torque exceeds a preset required torque safety limit;

[0031] The control unit is configured to control the hybrid vehicle to perform emergency power-off when the recalculated required torque exceeds a preset required torque safety limit; and to control the hybrid vehicle to continue driving when the recalculated required torque does not exceed the preset required torque safety limit.

[0032] Optionally, the control unit is further configured to:

[0033] When the required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0034] Optionally, the device further comprises:

[0035] The demand torque safety limit calculation unit is used to obtain vehicle status information of the hybrid vehicle during safe driving before determining whether the demand torque exceeds the preset demand torque safety limit; and calculate the demand torque safety limit according to the vehicle status information.

[0036] Optionally:

[0037] The acquisition unit is further configured to acquire actual torque of the engine and the motor during the driving of the hybrid vehicle;

[0038] The judgment unit is further configured to judge whether the actual torque of the engine and the motor exceeds a preset required torque safety limit;

[0039] The control unit is further configured to control the hybrid vehicle to shut down urgently when the actual torque of the engine and motor exceeds a preset required torque safety limit; and to control the hybrid vehicle to continue driving when the actual torque of the engine and motor does not exceed the preset required torque safety limit.

[0040] A storage medium stores a program, which, when executed by a processor, implements the hybrid electric vehicle demand torque monitoring method as described above.

[0041] An electronic device includes a memory and a processor, wherein the memory is used to store a program, and the processor is used to run the program, wherein the program executes the hybrid electric vehicle demand torque monitoring method as described above when running.

[0042] By means of the above technical solution, the hybrid vehicle demand torque monitoring method and device provided by the present invention are proposed to calculate the demand torque safety limit at a monitoring layer with a higher safety level in order to monitor whether the demand torque calculated by the demand torque calculation module is correct. When the demand torque calculated by the demand torque calculation module exceeds the limit, it is considered that the demand torque calculation module has a calculation error, and the module is reset. If the demand torque calculated by the demand torque calculation module still exceeds the limit after the reset, the entire vehicle is controlled to be powered off urgently to avoid unexpected movement, reverse movement, unexpected acceleration, etc. of the hybrid vehicle, which may cause the vehicle to collide with people outside the vehicle or other vehicles, resulting in serious accidents such as casualties inside and outside the vehicle.

[0043] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0045] Figure 1 A schematic flow chart of a method for monitoring torque demand of a hybrid vehicle disclosed in an embodiment of the present invention;

[0046] Figure 2 A schematic flow chart of another hybrid vehicle demand torque monitoring method disclosed in an embodiment of the present invention;

[0047] Figure 3 The present invention is a schematic structural diagram of a hybrid vehicle demand torque monitoring device disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0048] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0049] Please see the attached Figure 1 , Figure 1 This is a flow chart of a method for monitoring torque demand of a hybrid vehicle disclosed in an embodiment of the present invention. The method includes:

[0050] Step S101: obtaining the required torque calculated by the required torque calculation module;

[0051] In one embodiment, the required torque calculation module can calculate the required torque based on the accelerator pedal operation signal, brake pedal operation signal, gear operation signal input by the driver, and the operating signals of the ESP (Electronic Stability Program), ACC (Adaptive Cruise Control), and APA (Auto Parking Assist) of the hybrid vehicle.

[0052] Step S102: determining whether the required torque exceeds a preset required torque safety limit; if the required torque exceeds the preset required torque safety limit, executing step S103; if the required torque does not exceed the preset required torque safety limit, executing step S107;

[0053] In one embodiment, vehicle status information during safe driving of the hybrid vehicle can be first obtained, and then the required torque safety limit can be calculated based on the vehicle status information. In one embodiment, the vehicle status information during safe driving of the hybrid vehicle includes the accelerator pedal operation signal, brake pedal operation signal, and gear position operation signal input by the driver, as well as the operating signals of the hybrid vehicle's ESP (Electronic Stability Program), ACC (Adaptive Cruise Control), and APA (Auto Parking Assist). As an exemplary description of the required torque safety limit, the required torque safety limit can ensure that unexpected vehicle acceleration does not exceed a preset threshold. For example, if the gear position operation signal is D and the accelerator pedal operation signal indicates that the driver is pressing the accelerator pedal, the required torque safety limit will ensure that unexpected vehicle acceleration does not exceed 0.2g. For another example, if the gear position operation signal is N, the required torque safety limit will ensure that unexpected vehicle acceleration does not exceed 0.1g.

[0054] Step S103: sending a reset instruction to the required torque calculation module, so that the required torque calculation module recalculates the required torque according to the reset instruction;

[0055] When the required torque exceeds the preset required torque safety limit, it indicates that the required torque calculated by the required torque calculation module is incorrect. Therefore, a reset instruction is sent to the required torque calculation module to cause the required torque calculation module to recalculate the required torque according to the reset instruction.

[0056] After the required torque calculation module is reset, the accelerator pedal operation signal, brake pedal operation signal, gear operation signal input by the driver, as well as the operating signals of the ESP (Electronic Stability Program), ACC (Adaptive Cruise Control), and APA (Auto Parking Assist) of the hybrid vehicle can be obtained again to recalculate the required torque.

[0057] Step S104: obtaining the required torque recalculated by the required torque calculation module;

[0058] Step S105: determining whether the recalculated demand torque exceeds a preset demand torque safety limit; if the recalculated demand torque exceeds the preset demand torque safety limit, executing step S106; if the recalculated demand torque does not exceed the preset demand torque safety limit, executing step S107;

[0059] Step S106: controlling the hybrid electric vehicle to power off in an emergency;

[0060] When the recalculated demand torque exceeds the preset demand torque safety limit, it means that the demand torque calculation module still fails to return to normal after being reset. Therefore, it is necessary to control the hybrid vehicle to be powered off urgently to avoid unexpected movement, reverse movement, unexpected acceleration, etc. of the hybrid vehicle, which may cause the vehicle to collide with people outside the vehicle or other vehicles, resulting in serious accidents such as casualties inside and outside the vehicle.

[0061] Step S107: Control the hybrid electric vehicle to continue traveling.

[0062] When the recalculated required torque does not exceed the preset required torque safety limit, it indicates that the required torque calculation module has returned to normal after being reset, and the hybrid vehicle can continue to travel.

[0063] This embodiment provides a method for monitoring the demand torque of a hybrid vehicle. To monitor whether the demand torque calculated by a demand torque calculation module is correct, a safety limit of the demand torque is calculated at a higher safety level monitoring layer. When the demand torque calculated by the demand torque calculation module exceeds the limit, the module is deemed to have made a calculation error and is reset. If the demand torque calculated by the demand torque calculation module still exceeds the limit after the reset, the entire vehicle is controlled to be urgently powered off to avoid unexpected movement, reverse movement, unexpected acceleration, etc. of the hybrid vehicle, which could cause the vehicle to collide with people outside the vehicle or other vehicles, resulting in serious accidents with casualties to people inside and outside the vehicle.

[0064] If the torque demand calculation module calculates correctly, but the engine and motor incorrectly respond to the torque demand, it may also cause the vehicle to move unexpectedly, move in the opposite direction, or accelerate unexpectedly, which may cause the vehicle to collide with people outside the vehicle, resulting in serious accidents such as casualties. To this end, the embodiment of the present invention also discloses another implementation method of the hybrid vehicle torque demand monitoring method, which is as follows:

[0065] Please see the attached Figure 2 , Figure 2 This is a flow chart of another hybrid vehicle demand torque monitoring method disclosed in an embodiment of the present invention. The method is executed on the premise that the demand torque calculation module calculates correctly. The method includes:

[0066] Step S201: obtaining the actual torque of the engine and the motor during the driving of the hybrid vehicle;

[0067] Step S202: Determine whether the actual torque of the engine and the motor exceeds a preset required torque safety limit; if the actual torque of the engine and the motor exceeds the preset required torque safety limit, execute step S203; if the actual torque of the engine and the motor does not exceed the preset required torque safety limit, execute step S204;

[0068] Step S203: controlling the hybrid electric vehicle to power off in an emergency;

[0069] Step S204: controlling the hybrid electric vehicle to continue traveling.

[0070] Please see the attached Figure 3 , Figure 3 This is a schematic structural diagram of a hybrid vehicle demand torque monitoring device disclosed in an embodiment of the present invention, the device comprising:

[0071] An acquiring unit 31 is configured to acquire the required torque calculated by the required torque calculating module;

[0072] A determination unit 32 is configured to determine whether the required torque exceeds a preset required torque safety limit;

[0073] a control unit 33, configured to send a reset instruction to the required torque calculation module when the required torque exceeds a preset required torque safety limit, so that the required torque calculation module recalculates the required torque according to the reset instruction;

[0074] The acquisition unit is further configured to acquire the required torque recalculated by the required torque calculation module;

[0075] The judging unit is further configured to judge whether the recalculated required torque exceeds a preset required torque safety limit;

[0076] The control unit is configured to control the hybrid vehicle to perform emergency power-off when the recalculated required torque exceeds a preset required torque safety limit; and to control the hybrid vehicle to continue driving when the recalculated required torque does not exceed the preset required torque safety limit.

[0077] Optionally, the control unit is further configured to:

[0078] When the required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0079] Optionally, the device further comprises:

[0080] The demand torque safety limit calculation unit is used to obtain vehicle status information of the hybrid vehicle during safe driving before determining whether the demand torque exceeds the preset demand torque safety limit; and calculate the demand torque safety limit according to the vehicle status information.

[0081] Optionally:

[0082] The acquisition unit is further configured to acquire actual torque of the engine and the motor during the driving of the hybrid vehicle;

[0083] The judgment unit is further configured to judge whether the actual torque of the engine and the motor exceeds a preset required torque safety limit;

[0084] The control unit is further configured to control the hybrid vehicle to shut down urgently when the actual torque of the engine and motor exceeds a preset required torque safety limit; and to control the hybrid vehicle to continue driving when the actual torque of the engine and motor does not exceed the preset required torque safety limit.

[0085] It should be noted that the specific functional implementation of each of the above units has been described in detail in the method embodiment and will not be repeated in this embodiment.

[0086] The hybrid vehicle demand torque monitoring device includes a processor and a memory. The acquisition unit, judgment unit and control unit are all stored in the memory as program units. The processor executes the program units stored in the memory to realize corresponding functions.

[0087] The processor includes a core, which retrieves the corresponding program unit from memory. One or more cores can be provided, and by adjusting kernel parameters, the correctness of the required torque calculated by the required torque calculation module can be monitored to prevent the hybrid vehicle from unexpected movement, reverse movement, or unexpected acceleration, which could cause the vehicle to collide with external personnel or other vehicles, leading to serious accidents resulting in casualties.

[0088] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0089] An embodiment of the present invention provides a storage medium having a program stored thereon. When the program is executed by a processor, the method for monitoring the required torque of a hybrid electric vehicle is implemented.

[0090] An embodiment of the present invention provides a processor, which is used to run a program, wherein the method for monitoring the required torque of a hybrid electric vehicle is executed when the program is run.

[0091] An embodiment of the present invention provides an electronic device, the electronic device including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are performed:

[0092] Obtain the required torque calculated by the required torque calculation module;

[0093] Determining whether the required torque exceeds a preset required torque safety limit;

[0094] When the required torque exceeds a preset required torque safety limit, a reset instruction is sent to the required torque calculation module, so that the required torque calculation module recalculates the required torque according to the reset instruction;

[0095] Obtaining the required torque recalculated by the required torque calculation module;

[0096] determining whether the recalculated required torque exceeds a preset required torque safety limit;

[0097] When the recalculated required torque exceeds a preset required torque safety limit, controlling the hybrid electric vehicle to power off urgently;

[0098] When the recalculated required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0099] Optionally, the method further includes:

[0100] When the required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0101] Optionally, before determining whether the required torque exceeds a preset required torque safety limit, the method further includes:

[0102] Obtain vehicle status information during safe driving of hybrid electric vehicles;

[0103] A required torque safety limit is calculated according to the vehicle state information.

[0104] Optionally, while the hybrid electric vehicle continues to travel, the method further includes:

[0105] Obtaining actual torque of the engine and the motor during driving of the hybrid vehicle;

[0106] Determining whether the actual torque of the engine and the motor exceeds a preset required torque safety limit;

[0107] When the actual torque of the engine and the motor exceeds a preset required torque safety limit, controlling the hybrid vehicle to shut down urgently;

[0108] When the actual torque of the engine and the motor does not exceed the preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0109] The electronic devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0110] The present application also provides a computer program product which, when executed on a data processing device, is adapted to execute a program for initializing the following method steps:

[0111] Obtain the required torque calculated by the required torque calculation module;

[0112] Determining whether the required torque exceeds a preset required torque safety limit;

[0113] When the required torque exceeds a preset required torque safety limit, a reset instruction is sent to the required torque calculation module, so that the required torque calculation module recalculates the required torque according to the reset instruction;

[0114] Obtaining the required torque recalculated by the required torque calculation module;

[0115] determining whether the recalculated required torque exceeds a preset required torque safety limit;

[0116] When the recalculated required torque exceeds a preset required torque safety limit, controlling the hybrid electric vehicle to power off urgently;

[0117] When the recalculated required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0118] Optionally, the method further includes:

[0119] When the required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0120] Optionally, before determining whether the required torque exceeds a preset required torque safety limit, the method further includes:

[0121] Obtain vehicle status information during safe driving of hybrid electric vehicles;

[0122] A required torque safety limit is calculated according to the vehicle state information.

[0123] Optionally, while the hybrid electric vehicle continues to travel, the method further includes:

[0124] Obtaining actual torque of the engine and the motor during driving of the hybrid vehicle;

[0125] Determining whether the actual torque of the engine and the motor exceeds a preset required torque safety limit;

[0126] When the actual torque of the engine and the motor exceeds a preset required torque safety limit, controlling the hybrid vehicle to shut down urgently;

[0127] When the actual torque of the engine and the motor does not exceed the preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

[0128] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0129] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0130] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0131] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0132] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0133] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0134] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0135] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0136] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0137] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A method for monitoring the required torque of a hybrid vehicle, characterized in that: The method comprises: Obtain the required torque calculated by the required torque calculation module; Determining whether the required torque exceeds a preset required torque safety limit; When the required torque exceeds a preset required torque safety limit, a reset instruction is sent to the required torque calculation module, so that the required torque calculation module recalculates the required torque according to the reset instruction; Obtaining the required torque recalculated by the required torque calculation module; determining whether the recalculated required torque exceeds a preset required torque safety limit; When the recalculated required torque exceeds a preset required torque safety limit, controlling the hybrid electric vehicle to power off urgently; When the recalculated required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

2. The method according to claim 1, characterized in that The method further comprises: When the required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

3. The method according to claim 1, characterized in that Before determining whether the required torque exceeds a preset required torque safety limit, the method further includes: Obtain vehicle status information during safe driving of hybrid electric vehicles; A required torque safety limit is calculated according to the vehicle state information.

4. The method according to any one of claims 1 to 3, characterized in that While the hybrid electric vehicle continues to travel, the method further includes: Obtaining actual torque of the engine and the motor during driving of the hybrid vehicle; Determining whether the actual torque of the engine and the motor exceeds a preset required torque safety limit; When the actual torque of the engine and the motor exceeds a preset required torque safety limit, controlling the hybrid vehicle to shut down urgently; When the actual torque of the engine and the motor does not exceed the preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

5. A hybrid vehicle demand torque monitoring device, characterized in that: The device comprises: An acquisition unit, configured to acquire the required torque calculated by the required torque calculation module; a determination unit, configured to determine whether the required torque exceeds a preset required torque safety limit; a control unit, configured to send a reset instruction to the required torque calculation module when the required torque exceeds a preset required torque safety limit, so that the required torque calculation module recalculates the required torque according to the reset instruction; The acquisition unit is further configured to acquire the required torque recalculated by the required torque calculation module; The judging unit is further configured to judge whether the recalculated required torque exceeds a preset required torque safety limit; The control unit is configured to control the hybrid vehicle to perform emergency power-off when the recalculated required torque exceeds a preset required torque safety limit; and to control the hybrid vehicle to continue driving when the recalculated required torque does not exceed the preset required torque safety limit.

6. The device according to claim 5, characterized in that The control unit is further configured to: When the required torque does not exceed a preset required torque safety limit, the hybrid vehicle is controlled to continue traveling.

7. The device according to claim 5, characterized in that The device further comprises: The demand torque safety limit calculation unit is used to obtain vehicle status information of the hybrid vehicle during safe driving before determining whether the demand torque exceeds the preset demand torque safety limit; and calculate the demand torque safety limit according to the vehicle status information.

8. The device according to any one of claims 5 to 7, characterized in that: The acquisition unit is further configured to acquire actual torque of the engine and the motor during the driving of the hybrid vehicle; The judgment unit is further configured to judge whether the actual torque of the engine and the motor exceeds a preset required torque safety limit; The control unit is further configured to, when the required torque does not exceed a preset required torque safety limit, control the hybrid vehicle to perform emergency power-off when the actual torque of the engine and motor exceeds the preset required torque safety limit during continued driving of the hybrid vehicle; and control the hybrid vehicle to continue driving when the actual torque of the engine and motor does not exceed the preset required torque safety limit. 9 . A storage medium having a program stored thereon, wherein when the program is executed by a processor, the method for monitoring the required torque of a hybrid electric vehicle according to claim 1 is implemented.

10. An electronic device comprising a memory and a processor, wherein the memory is used to store a program and the processor is used to run the program, wherein: When the program is executed, the hybrid vehicle demand torque monitoring method according to any one of claims 1 to 4 is executed.

Images