Power compensation control method and system, control unit, storage medium and vehicle
By obtaining power demand and torque signals in the engine, calculating mechanical parameters, and performing torque correction, the problem of too strict limits in the prior art is solved, and power compensation control and power output improvement under special operating conditions are achieved.
Patent Information
- Application Number
- CN202311020653.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-14
- Publication Date
- 2025-02-21
AI Technical Summary
When the prior art meets the performance requirements of the engine under special operating conditions, the limit value is too strict, which makes it impossible to meet the power requirements under special operating conditions.
By obtaining the power demand signal, current output torque and torque reserve signals, input the preset mechanical parameter calculation model, calculate the values of each mechanical parameter of the vehicle, and iteratively correct the output torque through the torque correction model to ensure that the mechanical limit is met Power control is carried out under the premise of
Power compensation control to meet power demand under special operating conditions is realized, the design margin reserved for hardware deviation during development is eliminated, and the performance of engine power output is improved.
Smart Images
Figure CN119491775A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of vehicle technology, and in particular to a power compensation control method, system, control unit, storage medium and vehicle. Background Art
[0002] As the importance of environmental protection increases, the emission standards for vehicle exhaust are becoming more and more stringent, requiring vehicle power to adopt complex exhaust treatment systems. This has led to an increase in engine exhaust resistance. At the same time, during the system development process, the temperature requirements of the exhaust treatment system also need to be addressed.
[0003] In response to this situation, the current strategy adopted by automobile manufacturers is mainly to finely calibrate the engine torque, which requires torque accuracy testing in environmental test chambers at different altitudes. This test helps to meet the requirements of engine output torque accuracy under different working conditions. However, due to the differences between various engine components, during the system development process, performance and emissions are usually calibrated by characterizing the "nominal median" of the standard performance of key components. In actual work, due to the differences between components, the limits of some engines are too strict and cannot meet the performance requirements under special working conditions. Summary of the invention
[0004] An object of an embodiment of the present invention is to provide a power compensation control method for a vehicle, which can meet the performance requirements of the vehicle under special working conditions.
[0005] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a power compensation control method for a vehicle, and the power compensation control method for the vehicle includes: obtaining a power demand signal applied to the vehicle, a current output torque and a torque reserve signal representing the torque margin; when the power demand signal and the torque reserve signal jointly indicate that torque correction is required, inputting the power demand signal, the current output torque and the values of the collected operating condition parameters into a preset mechanical parameter calculation model to calculate the values of the various mechanical parameters of the vehicle; and when the values of the various mechanical parameters do not reach the corresponding mechanical limits, iteratively correcting the output torque through a preset torque correction model, so as to perform power control on the vehicle through the iteratively corrected output torque.
[0006] Optionally, obtaining the power demand signal applied to the vehicle, the current output torque and the torque reserve signal characterizing the torque margin includes: obtaining the engine speed signal; obtaining the accelerator pedal position signal or the engine speed acceleration demand signal; obtaining the power demand signal through the obtained accelerator pedal position signal or the engine speed acceleration signal; obtaining the current output torque through the engine speed signal; and obtaining the torque reserve signal through the difference between the maximum allowable output torque corresponding to the engine speed signal and the current output torque.
[0007] Optionally, the operating condition parameters include engine speed, fuel injection amount, after-treatment inlet gas temperature, intake manifold gas temperature, coolant temperature, exhaust tail pipe emissions, atmospheric ambient temperature and atmospheric ambient pressure.
[0008] Optionally, the mechanical parameters include the supercharger compressor outlet gas temperature, the supercharger turbine inlet gas temperature, the supercharger speed, and the aftertreatment inlet temperature.
[0009] Optionally, after the values of the mechanical parameters of the vehicle are obtained by calculation, the vehicle power compensation control method further includes: obtaining margin information of each mechanical parameter by comparing the values of each mechanical parameter with the corresponding mechanical limit values.
[0010] Optionally, the iterative correction of the output torque through the preset torque correction model includes: inputting the margin information of the mechanical parameters into the preset torque correction model to obtain a corrected torque; after applying the corrected torque to the current output torque, recalculating the values of the mechanical parameters of the vehicle and the margin information of the mechanical parameters as input of the preset torque correction model, so as to use the new margin information of the mechanical parameters as input of the preset torque correction model, until the values of the mechanical parameters reach the corresponding mechanical limits, thereby terminating the iterative correction.
[0011] An embodiment of the present invention also provides a power compensation control system for a vehicle, the power compensation control system for the vehicle comprising: a preprocessing module, for obtaining a power demand signal, a current output torque and a torque reserve signal representing the torque margin applied to the vehicle; a torque correction judgment and enable module, for issuing an enable request signal when the power demand signal and the torque reserve signal jointly indicate that torque correction is required; a data processing and analysis module, for, when receiving the enable request signal, inputting a preset mechanical parameter calculation model through the power demand signal, the current output torque and the values of the collected operating condition parameters to calculate the values of the various mechanical parameters of the vehicle; and an iterative torque correction module, for iteratively correcting the output torque through a preset torque correction model when the values of the various mechanical parameters do not reach the corresponding mechanical limits, so as to perform power control on the vehicle through the iteratively corrected output torque.
[0012] An embodiment of the present invention further provides an engine control unit, which includes: a memory storing a program that can be run on a processor; and the processor configured to execute the above-mentioned vehicle power compensation control method.
[0013] An embodiment of the present invention further provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the above-mentioned vehicle power compensation control method.
[0014] An embodiment of the present invention further provides a vehicle, comprising the above-mentioned engine control unit.
[0015] Through the above technical solution, in the embodiment of the present invention, when the driver has a power demand under special vehicle working conditions (for example, engine torque limit), the preset mechanical parameter calculation model is used to calculate the values of the mechanical parameters of the vehicle, ensuring that the step-by-step torque iteration output is performed and a certain power release is performed under the premise of meeting the various mechanical limits, so as to achieve power compensation control of the vehicle. It is also possible to perform dynamic intelligent power compensation according to the actual hardware performance of different engines, eliminating the design margin reserved for hardware deviation during the development process.
[0016] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:
[0018] Figure 1is a flow chart of a vehicle power compensation control method provided by an embodiment of the present invention;
[0019] Figure 2 is a schematic diagram of the structure of a power control system of a vehicle provided by an embodiment of the present invention; and
[0020] Figure 3 is a schematic diagram of a partial power structure of an example vehicle.
[0021] Description of Reference Numerals
[0022] 1-intake throttle valve, 2-exhaust throttle valve, 3-engine coolant temperature sensor, 4-engine, 5-intake manifold temperature sensor, 6-intake manifold pressure sensor, 7-exhaust manifold, 8-on-board computer, 9-after-treatment system assembly, 10-after-treatment inlet NOx sensor, 11-after-treatment inlet temperature sensor, 12-exhaust tail pipe NOx sensor, 13.SCR inlet temperature sensor, 14-transmission DETAILED DESCRIPTION
[0023] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.
[0024] Figure 1 is a flow chart of a vehicle power compensation control method provided by an embodiment of the present invention, please refer to Figure 1 , the vehicle power compensation control method may include the following steps:
[0025] Step S110: Acquire a power demand signal applied to the vehicle, a current output torque, and a torque reserve signal representing a torque margin.
[0026] Preferably, step S110 may include: obtaining an engine speed signal; obtaining an accelerator pedal position signal or an engine speed acceleration demand signal; obtaining the power demand signal through the obtained accelerator pedal position signal or the engine speed acceleration signal; obtaining the current output torque through the engine speed signal; and obtaining the torque reserve signal through the difference between the maximum allowable output torque corresponding to the engine speed signal and the current output torque.
[0027] When the driver has a power demand for the vehicle's engine under different environments, especially under engine torque-limited conditions caused by changes in environmental factors such as altitude and temperature, the embodiment of the present invention can perform a certain amount of power release through accurate information judgment to meet the driver's power demand under special conditions (for example, engine torque-limited). Among them, the driver's power demand can be shown by the accelerator pedal position signal or the engine speed acceleration signal. For example, in high altitude, high temperature and other environments, the vehicle engine is in a torque-limited condition. When the driver continues to step on the vehicle's pedal, the accelerator pedal position signal shows that the pedal position is 80% of the maximum limit, or the engine speed acceleration signal shows N consecutive large accelerations or continuous acceleration for S seconds, it indicates that the driver has a power demand and needs to release a certain amount of power.
[0028] Step S120: When the power demand signal and the torque reserve signal jointly indicate that torque correction is required, the power demand signal, the current output torque and the collected operating condition parameter values are input into a preset mechanical parameter calculation model to calculate the values of the mechanical parameters of the vehicle.
[0029] Continuing with the above example, when the power demand signal shows that the driver has a power demand, and the torque reserve signal shows that there is a margin of output torque (that is, the difference between the maximum allowable output torque corresponding to the engine speed signal and the current output torque is greater than a certain limit), the output torque is corrected (or compensated) to release a certain amount of power. Prior to this, it is necessary to determine the conditions for torque iterative correction through accurate information judgment. That is, when the power demand signal and the torque reserve signal jointly show that torque correction is required, the power demand signal, the current output torque and the collected operating condition parameters are input into a preset mechanical parameter calculation model to calculate the values of the various mechanical parameters of the vehicle.
[0030] The operating condition parameters preferably described in the embodiment of the present invention may include engine speed, after-treatment inlet gas temperature, intake manifold gas temperature, coolant temperature, exhaust tail pipe emissions, atmospheric ambient temperature and atmospheric ambient pressure, etc.
[0031] The operating condition parameters can be collected through various sensors configured on the vehicle and transmitted through the vehicle bus.
[0032] The mechanical parameters preferably in the embodiment of the present invention may include the gas temperature at the outlet of the supercharger compressor, the gas temperature at the inlet of the supercharger turbine, the supercharger speed, the post-processing inlet temperature, etc.
[0033] Preferably, basic data of the actual operation process of the vehicle under different altitudes, different temperatures and other conditions are obtained, such as: engine speed, fuel injection amount, post-processing inlet gas temperature, intake manifold gas temperature, coolant temperature, exhaust tail pipe emissions, atmospheric ambient temperature and atmospheric ambient pressure, etc.; according to the limitation of the engine hardware capacity, the corresponding mechanical limit parameters are calibrated and developed through the basic data obtained, such as: supercharger compressor outlet temperature, supercharger turbine front air intake temperature, supercharger speed, post-processing inlet temperature, etc., so as to obtain the preset mechanical parameter calculation model. Furthermore, when the power demand signal and the torque reserve signal jointly indicate that torque correction is required, the power demand signal, the current output torque and the values of the collected operating condition parameters are input into the preset mechanical parameter calculation model to calculate the values of the various mechanical parameters of the vehicle.
[0034] Step S130: when the values of the mechanical parameters do not reach the corresponding mechanical limits, the output torque is iteratively corrected by a preset torque correction model, so as to perform power control on the vehicle by the iteratively corrected output torque.
[0035] Preferably, before step S130, the vehicle power compensation control method may further include: obtaining margin information of each mechanical parameter by comparing the value of each mechanical parameter with the corresponding mechanical limit values.
[0036] Preferably, step S130 may include: inputting the margin information of each mechanical parameter into the preset torque correction model to obtain a corrected torque; after applying the corrected torque to the current output torque, recalculating the values of each mechanical parameter of the vehicle and the margin information of each mechanical parameter as the input of the preset torque correction model, so as to use the new margin information of each mechanical parameter as the input of the preset torque correction model, until the value of each mechanical parameter reaches the corresponding mechanical limit value, thereby terminating the iterative correction.
[0037] To illustrate by example, the values of each mechanical parameter calculated in step S120 are compared with the corresponding mechanical limits to obtain the margin information of each mechanical parameter, and step-by-step torque iteration output is performed. At the same time, the next round of calculation and intelligent analysis is performed on the engine operating condition information to ensure that the current mechanical hardware combination is intelligently corrected and improved in terms of power performance under the premise of meeting the mechanical limits. For example, the margin information of each mechanical parameter is input into the preset torque correction model to obtain the correction torque F1, and after the correction torque F1 is applied to the current output torque F, it is used as the input of the preset torque correction model, and the values of each mechanical parameter of the vehicle and the margin information of each mechanical parameter are recalculated, so that the new margin information of each mechanical parameter is used as the input of the preset torque correction model, and step-by-step torque iteration output is performed until the value of each mechanical parameter reaches the corresponding mechanical limit, and the iterative correction ends.
[0038] Preferably, a data set can be constructed by using the values of simulated mechanical parameters and the corresponding correction torque (step length), and the torque correction model can be obtained through machine learning.
[0039] Preferably, the data in the above-mentioned torque intelligent correction process is recorded, such as the power demand signal, the current output torque, the values of the collected operating condition parameters, and the calculated values of the corresponding mechanical parameters of the vehicle, and the preset mechanical parameter calculation model and the preset torque correction model are updated and loaded through the self-learning of the on-board computer to realize adaptive intelligent calibration optimization.
[0040] Accordingly, in the embodiment of the present invention, when the driver has a power demand under special vehicle working conditions (for example, engine torque limit), the preset mechanical parameter calculation model is used to calculate the values of the mechanical parameters of the vehicle, ensuring that under the premise of meeting the mechanical limit values, the torque correction model is used to perform step-by-step torque iteration output and certain power release to achieve power compensation control of the vehicle and improve engine power output. It is also possible to perform dynamic intelligent power compensation based on the actual hardware performance of different engines, eliminating the design margin reserved for hardware deviations during the development process.
[0041] Figure 2 This is a schematic diagram of the structure of the power compensation control system of the vehicle provided by the embodiment of the present invention, please refer to Figure 2The power compensation control system of the vehicle includes: a preprocessing module (not shown in the figure), which is used to obtain the power demand signal applied to the vehicle, the current output torque and the torque reserve signal representing the torque margin; a torque correction judgment and enabling module, which is used to issue an enabling request signal when the power demand signal and the torque reserve signal jointly indicate that torque correction is required; a data processing and analysis module, which is used to input the power demand signal, the current output torque and the collected operating condition parameters into a preset mechanical parameter calculation model when receiving the enabling request signal, and calculate the values of the various mechanical parameters of the vehicle; and an iterative torque correction module, which is used to iteratively correct the output torque through a preset torque correction model when the values of the various mechanical parameters do not reach the corresponding mechanical limits, so as to control the power of the vehicle through the iteratively corrected output torque.
[0042] Among them, the preprocessing module can obtain the power demand signal through the acquired accelerator pedal position signal or the engine speed acceleration signal; obtain the current output torque through the acquired engine speed signal; and obtain the torque reserve signal through the difference between the maximum allowable output torque corresponding to the engine speed signal and the current output torque.
[0043] Among them, the torque correction judgment and enable module is used to send an enable request signal to correct (or compensate) the output torque when the power demand signal shows that the driver has power demand and the torque reserve signal shows that there is a margin of output torque (that is, the difference between the maximum allowable output torque corresponding to the engine speed signal and the current output torque is greater than a certain limit value).
[0044] The data processing and analysis module is configured with a mechanical parameter calculation model, the construction of which is as described above and will not be repeated here. When the power demand signal and the torque reserve signal together indicate that torque correction is required, the power demand signal, the current output torque and the collected operating condition parameter values are input into a preset mechanical parameter calculation model to calculate the values of the mechanical parameters of the vehicle. Figure 2 As shown, the preferred operating condition parameters of the embodiment of the present invention may include engine speed, post-processing inlet gas temperature, intake manifold gas temperature, coolant temperature, exhaust tail pipe emissions, atmospheric temperature and atmospheric pressure, etc. The operating condition parameters can be collected by various sensors configured by the vehicle and transmitted through the vehicle bus. The preferred mechanical parameters of the embodiment of the present invention may include supercharger compressor outlet gas temperature, supercharger turbine inlet gas temperature, supercharger speed, post-processing inlet temperature, etc.
[0045] Wherein, the iterative torque correction module is configured with a torque correction model, and the construction of the torque correction model is as described above and will not be repeated here. The iterative torque correction module works in conjunction with the data processing and analysis module to achieve step-by-step torque iterative output. For example, the margin information of each mechanical parameter is input into the iterative torque correction module to obtain a corrected torque F1, and after the corrected torque F1 is applied to the current output torque F, it is used as the input of the data processing and analysis module to recalculate the values of each mechanical parameter of the vehicle and the margin information of each mechanical parameter, so that the new margin information of each mechanical parameter is used as the input of the iterative torque correction module, and step-by-step torque iterative output is performed until the value of each mechanical parameter reaches the corresponding mechanical limit value, and the iterative correction ends.
[0046] Preferably, the power control system provided by the embodiment of the present invention can be arranged in the vehicle's on-board computer. The present invention uses the (intelligent) data processing and analysis module and the (intelligent) torque iteration correction module built into the on-board computer to intelligently analyze and judge the margin information of various mechanical parameters of the engine according to the actual operation data of the current vehicle and the driver's power demand information, and transmits it to the torque iteration correction module. Under the premise of meeting the mechanical limit, the torque information is continuously iterated to improve the engine power compensation output. Rapidly perform torque correction to achieve the power demand of the driver under special working conditions. The embodiment of the present invention performs dynamic intelligent power compensation according to the actual hardware performance of different engines, eliminates the design margin reserved for hardware deviations in the development process, and can maximize the performance of the current hardware system. Furthermore, the embodiment of the present invention performs dynamic calibration iteration according to the actual hardware performance of the vehicle through intelligent module analysis and judgment to release the development boundary. The calibration update is completed through the self-learning iteration function of the on-board computer to achieve the adaptive intelligent calibration customization of the vehicle.
[0047] An embodiment of the present invention further provides an engine control unit, which includes: a memory storing a program that can be run on a processor; and the processor configured to execute the above-mentioned vehicle power compensation control method.
[0048] The preferred engine control unit in the embodiment of the present invention is, for example, an ECU of a vehicle.
[0049] An embodiment of the present invention further provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the above-mentioned vehicle power compensation control method.
[0050] An embodiment of the present invention further provides a vehicle, comprising the above-mentioned engine control unit.
[0051] Please refer to Figure 3Part of the structure of the vehicle may include an intake throttle valve (IAT) 1, an exhaust throttle valve (ETV) 2, an engine coolant temperature sensor 3, an engine 4, an intake manifold temperature sensor 5, an intake manifold pressure sensor 6, an exhaust manifold 7, an engine control unit (e.g., a trip computer or ECU) 8, an after-treatment system assembly (e.g., including: DOC, DPF, DPF pressure difference sensor, SCR and ASC) 9, an after-treatment inlet nitrogen oxide sensor 10, an after-treatment inlet temperature sensor 11, an exhaust tail pipe nitrogen oxide sensor 12, an SCR (selective catalytic reduction) inlet temperature sensor 13, a gearbox 14, etc.
[0052] 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 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 may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.
[0053] 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 generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. 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.
[0054] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate 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 A function specified in one or more boxes.
[0055] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.
[0056] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.
[0057] 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.
[0058] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. 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 disk read-only memory (CD-ROM), digital versatile disk (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 temporary computer readable media (transitory media), such as modulated data signals and carrier waves.
[0059] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.
[0060] The above are only 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 modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.
Claims
1. A vehicle power compensation control method, characterized in that: The power compensation control method of the vehicle comprises: Acquiring a power demand signal applied to the vehicle, a current output torque, and a torque reserve signal representing a torque margin; When the power demand signal and the torque reserve signal together indicate that torque correction is required, inputting the power demand signal, the current output torque and the collected operating condition parameter values into a preset mechanical parameter calculation model to calculate the values of various mechanical parameters of the vehicle; and When the values of the mechanical parameters do not reach the corresponding mechanical limit values, the output torque is iteratively corrected by a preset torque correction model, so as to perform power control on the vehicle by the iteratively corrected output torque.
2. The vehicle power compensation control method according to claim 1, characterized in that: The obtaining of the power demand signal applied to the vehicle, the current output torque and the torque reserve signal representing the torque margin includes: Obtain engine speed signal; Acquire an accelerator pedal position signal or an engine speed acceleration demand signal; Obtaining the power demand signal through the acquired accelerator pedal position signal or engine speed acceleration signal; Obtaining the current output torque through the engine speed signal; and The torque reserve signal is obtained by the difference between the maximum allowable output torque corresponding to the engine speed signal and the current output torque.
3. The vehicle power compensation control method according to claim 1, characterized in that: The operating condition parameters include engine speed, fuel injection amount, aftertreatment inlet gas temperature, intake manifold gas temperature, coolant temperature, exhaust tail pipe emissions, atmospheric ambient temperature and atmospheric ambient pressure.
4. The vehicle power compensation control method according to claim 1, characterized in that: The mechanical parameters include the gas temperature at the outlet of the supercharger compressor, the gas temperature at the inlet of the supercharger turbine, the supercharger speed, and the aftertreatment inlet temperature.
5. The vehicle power compensation control method according to claim 1, characterized in that: After the values of the mechanical parameters of the vehicle are obtained by calculation, the power compensation control method of the vehicle further includes: By comparing the value of each mechanical parameter with the corresponding mechanical limit values, margin information of each mechanical parameter is obtained.
6. The vehicle power compensation control method according to claim 5, characterized in that: The iterative correction of the output torque by using a preset torque correction model includes: Inputting the margin information of each mechanical parameter into the preset torque correction model to obtain a corrected torque; After the correction torque is applied to the current output torque, the values of the mechanical parameters of the vehicle and the margin information of the mechanical parameters are recalculated as the input of the preset torque correction model, so that the new margin information of the mechanical parameters is used as the input of the preset torque correction model until the values of the mechanical parameters reach the corresponding mechanical limits, thereby terminating the iterative correction.
7. A vehicle power compensation control system, characterized in that: The power compensation control system of the vehicle comprises: A preprocessing module, used for acquiring a power demand signal applied to the vehicle, a current output torque and a torque reserve signal representing a torque margin; A torque correction judgment and enabling module, configured to issue an enabling request signal when the power demand signal and the torque reserve signal together indicate that torque correction is required; a data processing and analysis module, configured to, when receiving the enable request signal, input a preset mechanical parameter calculation model through the power demand signal, the current output torque and the collected values of the operating condition parameters, and calculate the values of the mechanical parameters of the vehicle; and The iterative torque correction module is used to iteratively correct the output torque through a preset torque correction model when the value of each mechanical parameter does not reach the corresponding mechanical limit value, so as to control the power of the vehicle through the iteratively corrected output torque.
8. An engine control unit, characterized in that: The engine control unit comprises: a memory storing a program that can be executed on the processor; and The processor is configured to implement the vehicle power compensation control method according to any one of claims 1 to 6 when executing the program.
9. A machine-readable storage medium, characterized in that: The machine-readable storage medium stores instructions for enabling a machine to execute the vehicle power compensation control method as described in any one of claims 1 to 6.
10. A vehicle, characterized in that: The vehicle comprises the engine control unit of claim 8.