The invention relates to a turning assisting system and method for a vehicle with rear wheel steering, the system comprises an information input unit, a turning control unit and an execution unit, and the information input unit provides information related to the running state of the vehicle; the turning control unit receives information from the information input unit in a signal communication manner, determines whether a driver desires to execute a turning of the vehicle based on the information, and performs turning of the vehicle when it is determined that the turning of the vehicle is executed. The turning control unit calculates opposite driving torques applied to front and rear wheels of the vehicle when the front and rear wheels of the vehicle steer in the same direction and outputs the opposite driving torques to the execution unit as a wheel torque request. The opposite driving torques applied to the front wheel and the rear wheel are configured to enable the generated driving force applied to the front wheel and the rear wheel on the same side of the vehicle body to be equal in component size and opposite in direction in the longitudinal direction of the vehicle; the execution unit issues an instruction to a motor for controlling each wheel based on the wheel torque request to output a suitable torque.

    本发明涉及带有后轮转向车辆的转弯辅助系统及方法,系统包括信息输入单元、转弯控制单元及执行单元,信息输入单元提供与车辆运行状态有关的信息;转弯控制单元以信号通信方式从信息输入单元接收信息,基于所述信息确定驾驶员是否期望执行车辆转弯,当确定执行车辆转弯时,转弯控制单元计算在车辆的前轮和后轮朝向相同方向转向的情况下针对车辆的前轮和后轮所施加的相反驱动扭矩并将其作为车轮扭矩请求输出至执行单元,施加于前轮和后轮的相反驱动扭矩被配置为使得所产生的施加于车身同侧的前轮与后轮上的驱动力在车辆纵向方向上的分量大小相等且方向相反;执行单元基于车轮扭矩请求向用于控制各车轮的电机发出指令以输出合适的扭矩。


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    Title :

    Turning assist system and method for vehicle with rear wheel steering


    Additional title:

    用于带有后轮转向的车辆的转弯辅助系统及方法


    Contributors:
    LIU QIANG (author) / ZHANG QI (author) / ZHOU LIPING (author)

    Publication date :

    2024-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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