Driving anti-slip control method and control device for electric vehicle, medium and vehicle control unit

Abstract

The invention discloses a driving anti-slip control method and control device of an electric vehicle, a medium, a vehicle control unit. The method comprises the following steps of acquiring vehicle information of an electric vehicle; when the electric vehicle is in a driving mode and a brake pedal is not triggered, acquiring the rotating speed information of the driving motor, and further calculating the slip rate when judging that the electric vehicle has a sideslip phenomenon; if the slip rate is smaller than or equal to the preset value, calculating a current target torque, calculating a torque coefficient according to the slip rate, carrying out torque smoothing processing to obtain a target torque of the driving motor, and carrying out torque reduction control on the driving motor according to the target torque of the driving motor. The motor torque can be intervened with through cooperation between the vehicle control unit and the motor controller, driving antislip control over the electric vehicle can be completed through the combination of a common PID algorithm and a torque smoothing algorithm, the process is simple and easy to implement, and it is possible that an ASR system can be widely applied to the electric vehicles.

Description

technical field [0001] The invention relates to the technical field of vehicle anti-skid, in particular to a driving anti-skid control method, a medium, a vehicle controller and a control device for an electric vehicle. Background technique [0002] The traditional vehicle ASR system mainly relies on the communication between the engine and the ASR system. The engine torque is intervened by adjusting the throttle opening. The engine torque intervention in this way requires a lot of engineering experience, and the algorithms involved are relatively At the same time, due to the fact that the actual controlled object often has factors such as nonlinearity and event uncertainty, it is difficult for the conventional PID control to produce an ideal control effect on the engine torque, so that the ASR system cannot be widely used on electric vehicles. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned te...

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Problems solved by technology

[0002] The traditional vehicle ASR system mainly relies on the communication between the engine and the ASR system. The engine torque is intervened by adjusting the throttle opening. The engine torque intervention in this way requires a lot of engineering experience, and the algorithms involved are relatively At the same time, due to the fact that the actual controlled object often has factors such as nonlinearity and event uncertainty, it is difficult for the conventional PID control to produce an ideal control effect on the engine torque, so that the ASR system cannot be widely used on electric vehicles

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