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Torque control method of dual-motor electric vehicle, electric vehicle and storage medium

An electric vehicle, torque control technology, applied in electric vehicles, control drive, power management and other directions, can solve the problem of not considering driving conditions and driver intentions, and achieve the effect of improving safety

Active Publication Date: 2021-07-06
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a torque control method for a dual-motor electric vehicle, an electric vehicle and a storage medium, so as to solve the problems in the torque control of electric vehicles in the prior art. Consider the driving conditions and the driver's intentions, and make the torque output by the motor meet the driving control requirements under the condition of meeting the driver's needs, so as to improve the safety, stability and comfort of electric vehicle driving

Method used

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  • Torque control method of dual-motor electric vehicle, electric vehicle and storage medium
  • Torque control method of dual-motor electric vehicle, electric vehicle and storage medium
  • Torque control method of dual-motor electric vehicle, electric vehicle and storage medium

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Embodiment 1

[0048] This embodiment is to provide a torque control method for a dual-motor electric vehicle. The structural framework of the power system of the dual-motor electric vehicle is as follows: figure 1 As shown, the power system includes a front motor, a rear motor, a power battery and a vehicle controller, wherein the front motor and the rear motor are used to control the front and rear axles respectively to complete the transmission of torque to the wheels. Specifically, refer to figure 2 , the torque control method of dual-motor electric vehicle comprises the following steps:

[0049] S100: Detect the accelerator pedal opening, brake pedal opening, steering wheel angle, vehicle speed and the mode currently selected by the driver of the electric vehicle;

[0050] S200: Control the electric vehicle to enter the corresponding working mode according to the opening degree of the accelerator pedal, the opening degree of the brake pedal, the vehicle speed and the mode selected by ...

Embodiment 2

[0079] Embodiment 2 of the present invention is also to provide an electric vehicle. The components of the electric vehicle may include but not limited to: a vehicle body, one or more processors, a memory, and a bus connecting different system components (including the memory and the processor).

[0080] As a computer-readable storage medium, the memory can be used to store software programs, computer-executable programs and modules, such as program instructions corresponding to the torque control method for a dual-motor electric vehicle in the embodiment of the present invention. The processor executes various functional applications and data processing of the vehicle by running the software programs, instructions and modules stored in the memory, that is, realizes the torque control method of the above-mentioned dual-motor electric vehicle.

[0081] The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an oper...

Embodiment 3

[0083] Embodiment 3 of the present invention also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, a torque control method for a dual-motor electric vehicle is implemented. The torque control method includes the following steps:

[0084] S100: Detect the accelerator pedal opening, brake pedal opening, steering wheel angle, vehicle speed and the mode currently selected by the driver of the electric vehicle;

[0085] S200: Control the electric vehicle to enter the corresponding working mode according to the opening degree of the accelerator pedal, the opening degree of the brake pedal, the vehicle speed and the mode selected by the current driver; wherein, the working mode includes a sports mode, an economic mode, an energy recovery mode and a braking mode;

[0086] S300: When the electric vehicle is in any working mode of the sports mode, the economical mode, the energy recovery mode and the braking m...

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PUM

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Abstract

The invention discloses a torque control method of a dual-motor electric vehicle, the electric vehicle and a storage medium. The torque control method comprises the steps of detecting the accelerator pedal opening degree, the brake pedal opening degree, the steering wheel turning angle, the vehicle speed and the current mode selected by a driver of the electric vehicle; controlling the electric vehicle to enter a corresponding working mode according to the accelerator pedal opening, the brake pedal opening, the vehicle speed and the current mode selected by the driver; determining a front motor torque and a rear motor torque according to the current working mode of the electric vehicle; when the electric automobile is in the steering working condition, controlling the electric automobile to enter a corresponding steering auxiliary mode according to the steering wheel angle and the steering wheel steering angular velocity; and determining the front motor torque and the rear motor torque according to the corresponding steering auxiliary mode of the electric automobile. The torque output by the motor meets the driving control requirement under the condition that the requirement of a driver is met, and the driving safety, stability and comfort of the electric automobile are improved.

Description

technical field [0001] The invention relates to the technical field of vehicle drive control, in particular to a torque control method for a dual-motor electric vehicle, the electric vehicle and a storage medium. Background technique [0002] For a four-wheel drive electric vehicle equipped with dual motors, since the front and rear axles can have independent torque distribution, the trafficability of the vehicle is better. However, in the prior art, it mainly depends on the state of the vehicle (such as wheel speed, steering wheel angle, yaw acceleration, etc.) to distribute the torque of the front and rear axles, so as to realize the economical control and traction control of the vehicle; and most control methods do not Refer to vehicle speed estimation, driving conditions and driver's driving intention; at the same time, the acquisition of vehicle status depends on sensors, which are affected by the accuracy and transmission speed of sensor signals, and there is a problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60L3/12
CPCB60L15/20B60L3/12Y02T10/72
Inventor 张天强吴爱彬刘元治崔金龙孙起春周泽慧赵洋
Owner CHINA FIRST AUTOMOBILE