A four-wheel drive electric vehicle performance simulation logic control method and related device

Abstract

The application belongs to the technical field of electric vehicles, and discloses a four-wheel drive electric vehicle performance simulation logic control method and related device, a four-wheel drive electric vehicle performance simulation logic control method, comprising: responding to a motor working mode signal, the motor working mode signal comprising a front motor working mode signal and a rear motor working mode signal; when the motor working mode signal is the front motor working mode signal, calling and outputting working parameters for realizing the performance of the vehicle in the front motor working mode; when the motor working mode signal is the rear motor working mode signal, calling and outputting working parameters for realizing the performance of the vehicle in the rear motor working mode. The application can simulate the front / rear motor single motor working mode demand on the vehicle, and provide a theoretical reference for strategy writing bottom files.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electric vehicles, and particularly relates to a four-wheel drive electric vehicle performance simulation logic control method and related device. BACKGROUND

[0002] With the gradual enhancement of environmental awareness and the rapid development of new energy vehicle technology, new energy electric vehicles have been widely popularized in the global range. Electric vehicles not only reduce the consumption of fossil fuels, but also greatly reduce the impact of automobile exhaust on the environment. However, in the actual driving process, especially when facing complex and changeable road surfaces and driving scenes, the power performance and endurance performance of electric vehicles become important factors.

[0003] In order to meet the diversified needs of the market and consumers, more and more automobile manufacturers have launched electric four-wheel drive models. Such models not only provide stronger power performance and better handling, but also put forward higher requirements for the energy efficiency management of the vehicle. In the early stage of product design and development, accurately identifying and evaluating the improvement and contribution of the electric four-wheel drive system to the overall vehicle performance is of great significance for optimizing product design and improving market competitiveness.

[0004] Therefore, in the virtual design stage of the product, major automobile manufacturers have invested a lot of resources in simulation in order to obtain relatively comprehensive and accurate virtual data in the early stage of development. This approach not only reduces the engineering quantity in the later development stage and improves the development efficiency, but also provides strong data and theoretical support for design selection. However, the existing simulation methods are often complex and time-consuming, which makes it difficult to quickly and effectively evaluate the performance of electric four-wheel drive models in different driving modes. Therefore, developing a fast and effective simulation logic control method has become a problem to be solved in the current electric vehicle technology field. SUMMARY

[0005] In view of the problems in the prior art, the present application provides a four-wheel drive electric vehicle performance simulation logic control method and related device, which can simulate the front / rear motor single motor working mode demand on the vehicle, and provide a theoretical reference for strategy writing bottom file.

[0006] In order to solve the above technical problems, the present application is implemented by the following technical scheme:

[0007] According to the first aspect of the present application, a four-wheel drive electric vehicle performance simulation logic control method is provided, comprising:

[0008] in response to the motor working mode signal, the motor working mode signal includes a front motor working mode signal and a rear motor working mode signal;

[0009] when the motor working mode signal is the front motor working mode signal, calling and outputting working parameters for realizing performance of the automobile in the front motor working mode;

[0010] when the motor working mode signal is the rear motor working mode signal, calling and outputting working parameters for realizing performance of the automobile in the rear motor working mode.

[0011] In a possible implementation manner of the first aspect, the calling and outputting of the working parameters for realizing performance of the automobile in the front motor working mode comprises:

[0012] calling and outputting a front motor speed ratio derivative signal; and

[0013] calling and outputting a front motor maximum torque signal; and

[0014] calling and outputting a front motor speed signal; and

[0015] calling and outputting a front motor speed ratio signal; and

[0016] calling and outputting a comprehensive torque request signal obtained by superimposing a vehicle control unit VCU output torque request signal and a vehicle control unit VCU recovery torque request signal.

[0017] In a possible implementation manner of the first aspect, the calling and outputting of the working parameters for realizing performance of the automobile in the rear motor working mode comprises:

[0018] calling and outputting a rear motor speed ratio derivative signal; and

[0019] calling and outputting a rear motor maximum torque signal; and

[0020] calling and outputting a rear motor speed signal; and

[0021] calling and outputting a rear motor speed ratio signal; and

[0022] calling and outputting a comprehensive torque request signal obtained by superimposing a vehicle control unit VCU output torque request signal and a vehicle control unit VCU recovery torque request signal.

[0023] In a possible implementation manner of the first aspect, when the motor working mode signal is the front motor working mode signal, the method further comprises:

[0024] outputting a rear motor current cut-off signal.

[0025] In a possible implementation manner of the first aspect, when the motor working mode signal is the rear motor working mode signal, the method further comprises:

[0026] output front motor current cut-off signal.

[0027] According to a second aspect of the present application, there is provided a four-wheel drive electric vehicle performance simulation logic control device, comprising:

[0028] a response module, configured to respond to a motor working mode signal, the motor working mode signal comprising a front motor working mode signal and a rear motor working mode signal;

[0029] a first call output module, configured to, when the motor working mode signal is the front motor working mode signal, call and output working parameters for realizing vehicle performance in the front motor working mode;

[0030] a second call output module, configured to, when the motor working mode signal is the rear motor working mode signal, call and output working parameters for realizing vehicle performance in the rear motor working mode.

[0031] In a possible implementation manner of the second aspect, the first call output module is specifically configured to:

[0032] call and output a front motor speed ratio derivative signal; and,

[0033] call and output a front motor maximum torque signal; and,

[0034] call and output a front motor speed signal; and,

[0035] call and output a front motor speed ratio signal; and,

[0036] call and output a comprehensive torque request signal obtained by superimposing a vehicle controller VCU output torque request signal and a vehicle controller VCU recovery torque request signal.

[0037] In a possible implementation manner of the second aspect, the second call output module is specifically configured to:

[0038] call and output a rear motor speed ratio derivative signal; and,

[0039] call and output a rear motor maximum torque signal; and,

[0040] call and output a rear motor speed signal; and,

[0041] call and output a rear motor speed ratio signal; and,

[0042] call and output a comprehensive torque request signal obtained by superimposing a vehicle controller VCU output torque request signal and a vehicle controller VCU recovery torque request signal.

[0043] According to a third aspect of the present application, there is provided an apparatus comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for simulating the performance of a four-wheel drive electric vehicle according to the logical control when executing the computer program.

[0044] According to a fourth aspect of the present application, there is provided a computer readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the method for simulating the performance of a four-wheel drive electric vehicle according to the logical control.

[0045] Compared with the prior art, the present application has at least the following beneficial effects:

[0046] The method for simulating the performance of a four-wheel drive electric vehicle according to the logical control provided by the present application first responds to a motor working mode signal (a front motor working mode signal or a rear motor working mode signal). When the motor working mode signal is the front motor working mode signal, the working parameters for realizing the performance of the vehicle in the front motor working mode are called and output. When the motor working mode signal is the rear motor working mode signal, the working parameters for realizing the performance of the vehicle in the rear motor working mode are called and output. The present application realizes the logical control of the electric four-wheel drive vehicle in different motor working modes in a simple and efficient manner, simulates the front / rear motor single motor working mode demand on the vehicle, and based on the working parameters in different modes, can predict and evaluate the performance of the four-wheel drive electric vehicle in different working conditions, thereby providing important data support and theoretical reference for the design and development of the electric vehicle, i.e., providing theoretical reference for the underlying file of the strategy, which can effectively reduce the development engineering quantity in the later stage and improve the accuracy and reliability of the product design.

[0047] In order to make the above objectives, characteristics and advantages of the present application more apparent and easy to understand, a preferred embodiment is described below in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application, the drawings needed in the description of the specific embodiments will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0049] Figure 1 The flowchart of the method for simulating the performance of a four-wheel drive electric vehicle according to the logical control of the embodiment of the present application is shown in Figure 1.

[0050] Figure 2A front / rear motor separate operation switching logic diagram in a four-wheel drive electric vehicle performance simulation logic control method according to an embodiment of the present application is provided.

[0051] Figure 3 A front / rear motor torque feedback control logic diagram in a four-wheel drive electric vehicle performance simulation logic control method according to an embodiment of the present application is provided.

[0052] Figure 4 A device block diagram of a four-wheel drive electric vehicle performance simulation logic control method according to an embodiment of the present application is provided. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described below in detail with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0054] It should be understood that a four-wheel drive electric vehicle is also referred to as a four-wheel drive electric vehicle, and its core feature is that all four wheels can obtain driving force. To achieve this function, a four-wheel drive electric vehicle usually has electric motors installed on both the front axle and the rear axle, that is, the front motor and the rear motor involved in the present application. In this way, whether the front wheels or the rear wheels can obtain direct power from the motor, thereby realizing four-wheel drive. The four-wheel drive mode of the four-wheel drive electric vehicle helps to improve the controllability and stability of the vehicle, especially in complex or harsh road conditions.

[0055] As shown in FIG. 1, Figure 1 The present application provides a four-wheel drive electric vehicle performance simulation logic control method, which first responds to a motor working mode signal including a front motor working mode signal and a rear motor working mode signal. When different motor working mode signals are received, the corresponding control logic will be executed, as follows:

[0056] (1) When the motor working mode signal is the front motor working mode signal, the working parameters for realizing the performance of the vehicle in the front motor working mode are called and output.

[0057] It should be noted that based on the working parameters for realizing the performance of the vehicle in the front motor working mode, the whole vehicle performance evaluation can be performed using a conventional whole vehicle performance evaluation model.

[0058] In an embodiment, the working parameters related to the performance of the automobile in the front motor working mode include a front motor speed ratio derivative signal, a front motor maximum torque signal, a front motor speed signal, a front motor speed ratio signal, and a comprehensive torque request signal obtained by superimposing a torque request signal output by a vehicle controller VCU and a torque recovery request signal of the VCU.

[0059] (2) When the motor working mode signal is the rear motor working mode signal, the working parameters for the performance of the automobile in the rear motor working mode are called and output.

[0060] Similarly, based on the working parameters for the performance of the automobile in the rear motor working mode, the vehicle performance can be evaluated by using a conventional vehicle performance evaluation model.

[0061] In an embodiment, the working parameters related to the performance of the automobile in the rear motor working mode include a rear motor speed ratio derivative signal, a rear motor maximum torque signal, a rear motor speed signal, a rear motor speed ratio signal, and a comprehensive torque request signal obtained by superimposing a torque request signal output by a vehicle controller VCU and a torque recovery request signal of the VCU.

[0062] It should be noted that the front / rear motor speed ratio derivative signal reflects the rate of change of the front / rear motor speed ratio, which is used to predict and adjust the motor performance. The front / rear motor maximum torque signal represents the maximum torque that the front / rear motor can generate, which is an important indicator for evaluating the motor performance. The front / rear motor speed signal reflects the actual speed of the front / rear motor, which is used to monitor and adjust the motor working state in real time. The front / rear motor speed ratio signal represents the speed ratio of the front / rear motor, i.e., the proportional relationship between the motor speed and the wheel speed. The comprehensive torque request signal is obtained by superimposing the torque request signal output by the vehicle controller VCU and the torque recovery request signal, which is used to accurately control the torque output of the front / rear motor.

[0063] In an embodiment, preferably, when the motor working mode signal is the front motor working mode signal, in order to ensure that the rear motor does not participate in working, the system will also output a rear motor current cut-off signal to ensure that the rear motor is in a non-working state.

[0064] In an embodiment, preferably, when the motor working mode signal is the rear motor working mode signal, in order to ensure that the front motor does not participate in working, the system will also output a front motor current cut-off signal to ensure that the front motor is in a non-working state.

[0065] In order to more clearly explain the simulation logic control method, please refer to Figure 2 As shown in Table 1, when the motor working mode signal is the front motor working mode signal, the working parameters for the performance of the automobile in the front motor working mode are called and output, which are as follows:

[0066] K1 is input as 0, i.e. in response to the front motor working mode signal, then: the front motor speed ratio derivative input signal K3 is called, and the corresponding front / rear motor speed ratio derivative output signal S is specifically the front motor speed ratio derivative signal; and the front motor maximum torque input signal F is called, and the corresponding front / rear motor torque output signal T is specifically the front motor maximum torque signal; and the front motor speed input signal L is called, and the corresponding front / rear motor speed output signal I is specifically the front motor speed signal; and the front motor speed ratio input signal K5 is called, and the corresponding front / rear speed ratio output signal X is specifically the front motor speed ratio signal; and the vehicle controller VCU output torque request signal M and the vehicle controller VCU recovery torque request signal R are called, and the vehicle controller VCU output torque request signal M and the vehicle controller VCU recovery torque request signal R are superimposed, and the output comprehensive torque request (positive and negative torque) signal G is output to the front motor. At the same time, the rear motor current cut-off signal P is output.

[0067] Similarly, when the motor working mode signal is the rear motor working mode signal, the working parameters for realizing the performance of the automobile in the rear motor working mode are called and output, specifically:

[0068] K1 is input as 1, i.e. in response to the rear motor working mode signal, then: the rear motor speed ratio derivative input signal K2 is called, and the corresponding front / rear motor speed ratio derivative output signal S is specifically the rear motor speed ratio derivative signal; and the rear motor maximum torque input signal E is called, and the corresponding front / rear motor torque output signal T is specifically the rear motor maximum torque signal; and the rear motor speed input signal J is called, and the corresponding front / rear motor speed output signal I is specifically the rear motor speed signal; and the rear motor speed ratio input signal K4 is called, and the corresponding front / rear speed ratio output signal X is specifically the rear motor speed ratio signal; and the vehicle controller VCU output torque request signal M and the vehicle controller VCU recovery torque request signal R are called, and the vehicle controller VCU output torque request signal M and the vehicle controller VCU recovery torque request signal R are superimposed, and the output comprehensive torque request (positive and negative torque) signal H is output to the rear motor. At the same time, the rear motor current cut-off signal N is output.

[0069] Table 1 Figure 2 Signal codes in the table and corresponding signal meanings

[0070]

[0071]

[0072] The energy recovery control logic and the speed ratio control logic are used to achieve different energy recovery requirements of the front motor and the rear motor, and to achieve energy recovery of the front motor or the rear motor to achieve the working state of the front motor or the rear motor. The torque control logic is mainly used to receive the external characteristic torque request (input signal E / F) of the vehicle, and output the front motor torque signal or the rear motor torque signal to the vehicle controller according to the working requirement of the front motor or the rear motor. The speed control logic is mainly used to receive the external characteristic speed request (input signal L / L) of the vehicle, and output the front motor speed signal or the rear motor speed signal to the vehicle controller according to the working requirement of the front motor or the rear motor. The recovery control logic is mainly used to superimpose the torque signal of the vehicle driving or recovery, and to realize the positive and negative torque by outputting the signal G / H (output comprehensive torque request (positive and negative torque) to the front motor or the rear motor. The speed ratio control logic is mainly used to realize the switching of the mechanical linkage of the front motor and the rear motor. The front motor or rear motor current on-off control logic is mainly used to cut off the current signal of the motor that does not work, to realize the power-off processing, and to achieve the purpose of not outputting power.

[0073] In this embodiment, combined with Figure 3 As shown in Table 2, in the simulation logic control method, the front motor torque feedback control logic and the rear motor torque feedback control logic are also involved, which are used for feedback torque limit control and speed signal of the front motor and the rear motor. Figure 3 In the DMUX, DMUX is the abbreviation of data distributor, which has one input end and multiple output ends. The logic function is to send the signal of the input end to one of the multiple output ends. MUX is a kind of combination logic circuit, which can select one data line from multiple input lines for output. The working principle of MUX is to determine which input line is selected and connected to the output through a selection signal (also called selection line or control line).

[0074] Table 2 Figure 3 Signal code and corresponding signal meaning in Table 2

[0075]

[0076]

[0077] Combined with Figure 4 As shown in Table 2, in the simulation logic control method, the front motor torque feedback control logic and the rear motor torque feedback control logic are also involved, which are used for feedback torque limit control and speed signal of the front motor and the rear motor.

[0078] The response module is used to respond to the motor working mode signal, and the motor working mode signal includes the front motor working mode signal and the rear motor working mode signal.

[0079] The first calling output module is configured to call and output working parameters for realizing performance of the automobile in the front motor working mode when the motor working mode signal is the front motor working mode signal.

[0080] In an embodiment, the first calling output module is specifically configured to call and output a front motor speed ratio derivative signal, call and output a front motor maximum torque signal, call and output a front motor rotating speed signal, call and output a front motor speed ratio signal, and call and output a comprehensive torque request signal obtained by superimposing a vehicle control unit (VCU) output torque request signal and a vehicle control unit (VCU) recovery torque request signal.

[0081] Preferably, the first calling output module is further configured to output a rear motor current cut-off signal.

[0082] The second calling output module is configured to call and output working parameters for realizing performance of the automobile in the rear motor working mode when the motor working mode signal is the rear motor working mode signal.

[0083] In an embodiment, the second calling output module is specifically configured to call and output a rear motor speed ratio derivative signal, call and output a rear motor maximum torque signal, call and output a rear motor rotating speed signal, call and output a rear motor speed ratio signal, and call and output a comprehensive torque request signal obtained by superimposing a vehicle control unit (VCU) output torque request signal and a vehicle control unit (VCU) recovery torque request signal.

[0084] Preferably, the second calling output module is further configured to output a front motor current cut-off signal.

[0085] The application provides a computer device in an embodiment, the computer device includes a processor and a memory, the memory is used for storing a computer program, the computer program includes program instructions, and the processor is used for executing the program instructions stored by the computer storage medium. The processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components and the like, which are the computing core and control core of the terminal, and are suitable for implementing one or more instructions, and are specifically suitable for loading and executing one or more instructions to implement a corresponding method flow or corresponding function; the processor in the embodiment of the application can be used to implement the operation of the four-wheel drive electric vehicle performance simulation logic control method.

[0086] The four-wheel drive electric vehicle performance simulation logic control method in the embodiment of the application can be stored in a computer readable storage medium if it is implemented in the form of a software function unit and sold or used as an independent product. Based on such understanding, all or part of the flow of the above-mentioned embodiment method can also be completed by instructing related hardware through a computer program, and the computer program can be stored in a computer readable storage medium. The computer program can implement the steps of each method embodiment when being executed by a processor. The computer program includes computer program code, which can be in the form of source code, object code, executable files or some intermediate forms and the like. The computer readable storage medium includes permanent and non-permanent, removable and non-removable media, and 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.

[0087] The computer storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO) and the like), an optical storage (such as a CD, a DVD, a BD, a HVD and the like), and a semiconductor storage (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid state disk (SSD)) and the like.

[0088] Those skilled in the art will appreciate that embodiments of the application can be readily used as software, hardware, or a combination of software and hardware. In one

[0089] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination of flowcharts and / or blocks in the flowcharts can be implemented by computer program instructions. Figure 1 means for carrying out functions specified by the flowchart block or blocks.

[0090] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination of flowcharts and / or blocks in the flowcharts can be implemented by computer program instructions. Figure 1 means for carrying out functions specified by the flowchart block or blocks.

[0091] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination of flowcharts and / or blocks in the flowcharts can be implemented by computer program instructions. Figure 1 means for carrying out functions specified by the flowchart block or blocks.

[0092] In the description of the present application, the terms "first", "second", etc. are used only to describe the purpose and are not to be construed as indicating or implying relative importance or a specific number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited.

[0093] In the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicated with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0094] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0095] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present specification without contradiction.

[0096] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, and are not limiting. The protection scope of the present application is not limited thereto, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily think of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed by the present application, or make equivalent replacement to part of the technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for controlling the logic of a performance simulation of a four-wheel drive electric vehicle, characterized by, Comprising: in response to the motor operating mode signal, the motor operating mode signal comprising a front motor operating mode signal and a rear motor operating mode signal; when the motor operating mode signal is the front motor operating mode signal, calling and outputting operating parameters for realizing the performance of the automobile in the front motor operating mode, comprising: calling and outputting a front motor speed ratio derivative signal; and, calling and outputting a front motor maximum torque signal; and, calling and outputting a front motor speed signal; and, calling and outputting a front motor speed ratio signal; and, calling and outputting a comprehensive torque request signal obtained by superimposing the vehicle controller VCU output torque request signal and the vehicle controller VCU recovery torque request signal; when the motor operating mode signal is the rear motor operating mode signal, calling and outputting operating parameters for realizing the performance of the automobile in the rear motor operating mode, comprising: calling and outputting a rear motor speed ratio derivative signal; and, calling and outputting a rear motor maximum torque signal; and, calling and outputting a rear motor speed signal; and, calling and outputting a rear motor speed ratio signal; and, calling and outputting a comprehensive torque request signal obtained by superimposing the vehicle controller VCU output torque request signal and the vehicle controller VCU recovery torque request signal.

2. The method of claim 1, wherein the method further comprises: The when the motor operating mode signal is the front motor operating mode signal, further comprising: outputting a rear motor current cut-off signal.

3. The method of claim 1, wherein the method further comprises: The when the motor operating mode signal is the rear motor operating mode signal, further comprising: outputting a front motor current cut-off signal.

4. A four-wheel drive electric vehicle performance simulation logic control device, characterized by, Comprising: a response module, configured to respond to a motor operating mode signal, the motor operating mode signal comprising a front motor operating mode signal and a rear motor operating mode signal; a first calling and outputting module, configured to, when the motor operating mode signal is the front motor operating mode signal, call and output operating parameters for realizing the performance of the automobile in the front motor operating mode, comprising: calling and outputting a front motor speed ratio derivative signal; and, calling and outputting a front motor maximum torque signal; and, calling and outputting a front motor speed signal; and, calling and outputting a front motor speed ratio signal; and, calling and outputting a comprehensive torque request signal obtained by superimposing the vehicle controller VCU output torque request signal and the vehicle controller VCU recovery torque request signal; a second calling and outputting module, configured to, when the motor operating mode signal is the rear motor operating mode signal, call and output operating parameters for realizing the performance of the automobile in the rear motor operating mode, comprising: calling and outputting a rear motor speed ratio derivative signal; and, calling and outputting a rear motor maximum torque signal; and, calling and outputting a rear motor speed signal; and, calling and outputting a rear motor speed ratio signal; and, calling and outputting a comprehensive torque request signal obtained by superimposing the vehicle controller VCU output torque request signal and the vehicle controller VCU recovery torque request signal.

5. The logical control device for performance simulation of a four-wheel drive electric vehicle according to claim 4, wherein The first calling and outputting module is specifically configured to: calling and outputting a front motor speed ratio derivative signal; and, calling and outputting a front motor maximum torque signal; and, calling and outputting a front motor speed signal; and, retrieve and output the front motor speed ratio signal; and retrieve and output the comprehensive torque request signal after superimposing the vehicle controller VCU output torque request signal and the vehicle controller VCU recovery torque request signal.

6. The logical control device for performance simulation of a four-wheel drive electric vehicle according to claim 4, wherein The second retrieval and output module is specifically configured to: retrieve and output the rear motor speed ratio derivative signal; and retrieve and output the rear motor maximum torque signal; and retrieve and output the rear motor speed signal; and retrieve and output the rear motor speed ratio signal; and retrieve and output the comprehensive torque request signal after superimposing the vehicle controller VCU output torque request signal and the vehicle controller VCU recovery torque request signal.

7. An apparatus comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein, The processor executes the computer program to implement the steps of the four-wheel drive electric vehicle performance simulation logical control method according to any one of claims 1 to 3.

8. A computer-readable storage medium storing a computer program, the computer-readable storage medium comprising: The computer program is executed by the processor to implement the steps of the four-wheel drive electric vehicle performance simulation logical control method according to any one of claims 1 to 3.

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