The invention discloses a vehicle composite steering system and a mode switching control method thereof, and the method comprises the steps: establishing a relation between an ideal yaw velocity and asteering wheel angle, and solving the ideal yaw velocity; establishing a composite steering system and a whole vehicle dynamic model; and designing a control method of the steering system in each steering mode according to the ideal yaw velocity, the composite steering system and the whole vehicle kinetic model. The advantages of a steer-by-wire system and a differential steering system are combined, the ideal yaw velocity is designed and tracked, and the yaw stability of the vehicle is improved.

    本发明公开了一种车辆复合转向系统及其模式切换控制方法,方法包括:建立理想横摆角速度与方向盘转角关系,求解理想横摆角速度;建立复合转向系统与整车动力学模型;根据理想横摆角速度及复合转向系统与整车动力学模型设计各转向模式下转向系统的控制方法。本发明结合线控转向系统与差动转向系统优势,通过设计理想横摆角速度并对其进行跟踪,提高车辆横摆稳定性。


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    Title :

    Vehicle composite steering system and mode switching control method thereof


    Additional title:

    一种车辆复合转向系统及其模式切换控制方法


    Contributors:
    ZHANG HAN (author) / ZHAO WANZHONG (author)

    Publication date :

    2020-12-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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