The invention discloses an electric power steering system return control method based on return speed control. The method is composed of a casting hand return state judgment module, a return time determination module, a return speed determination module and a return compensation torque determination module. The casting hand return state judgment module judges according to the steering wheel torque, the steering wheel rotating angle and the rotating speed signal, and when the following conditions are met at the same time, the casting hand return state is judged to be in the casting hand return state. By designing the return time determining module, the return time is determined according to the steering angle of the steering wheel and the vehicle speed at the hand releasing moment, the expectation of a driver is better met, and the return performance under various working conditions better meets the expectation of the driver by judging the driver holding return/hand releasing return and correcting the return speed.

    本发明公开了一种基于回正速度控制的电动助力转向系统回正控制方法,由撒手回正状态判断模块、回正时间确定模块、回正速度确定模块以及回正补偿力矩确定模块组成。撒手回正状态判断模块根据转向盘力矩、转向盘转角和转速信号进行判断,当同时满足以下条件时,判断为撒手回正状态。本发明通过设计回正时间确定模块,根据撒手时刻的转向盘转角和车速确定回正时间,更满足驾驶员期望,通过对驾驶员扶着回正/撒手回正的判断及由此对回正速度的修正,使得各个工况下的回正性能更加符合驾驶员期望。


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    Title :

    Return control method of electric power steering system based on return speed control


    Additional title:

    一种基于回正速度控制的电动助力转向系统回正控制方法


    Contributors:
    GUAN XIN (author) / SONG YIMENG (author) / LU PINGPING (author) / JIA XIN (author) / ZHANG YUNING (author) / DUAN CHUNGUANG (author)

    Publication date :

    2024-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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