The invention discloses an electric power steering system control strategy for steering motion quality, which is composed of an expected steering motion intensity determination module, a whole vehicle steering motion control module and a steering system position control module, and the expected steering motion intensity determination module is used for determining the steering motion intensity according to the steering operation input of a driver and the motion state of a control mechanism. The steering motion intensity expected by a driver is determined, the whole vehicle steering motion control module calculates the steering system position capable of achieving the expected steering motion intensity, and the steering system position control module calculates the steering assisting torque capable of achieving the expected steering system position. According to the invention, the problem that the current EPS control strategy cannot guarantee the expected steering feeling, the hysteresis characteristic simulation torque and the return performance at the same time is solved. By designing the whole vehicle steering motion closed-loop control module and the steering system position closed-loop control module, the consistency of the vehicle in the whole life cycle is guaranteed, and the steering motion quality is improved.

    本发明公开了一种面向转向运动品质的电动助力转向系统控制策略,由期望转向运动强度确定模块、整车转向运动控制模块和转向系统位置控制模块组成,所述期望转向运动强度确定模块根据驾驶员转向操作输入及操纵机构运动状态,确定驾驶员期望的转向运动强度,整车转向运动控制模块计算能够实现期望转向运动强度的转向系统位置,转向系统位置控制模块计算能够实现期望转向系统位置的转向助力矩。本发明解决了当前EPS控制策略无法同时保证期望转向感觉、迟滞特性模拟力矩以及回正性能的问题。本发明通过设计整车转向运动闭环控制模块和转向系统位置闭环控制模块,保证了车辆在全生命周期的一致性,提高了转向运动品质。


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    Title :

    Electric power steering system control strategy for steering motion quality


    Additional title:

    一种面向转向运动品质的电动助力转向系统控制策略


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

    Publication date :

    2024-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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