The invention relates to the technical field of vehicles, in particular to a vehicle steering device, a power-assisted system and a power-assisted steering control method. The vehicle steering device comprises a vehicle unit and a steering transmission unit, the vehicle unit comprises a steering wheel and wheels, the steering transmission unit comprises a first cylindrical gear, a transmission lead screw and a face gear, the first cylindrical gear is connected with the steering wheel, the wheels are arranged at the two ends of the transmission lead screw respectively, and the face gear is fixedly arranged and matched with the transmission lead screw. And the first cylindrical gear is meshed with the face gear. The power assisting system comprises a controller, an angle sensor, a power assisting motor and a second cylindrical gear, and the second cylindrical gear is connected with the first cylindrical gear in an engaged mode. The rotating speed of the first cylindrical gear is reduced through the face gear, so that torque is increased to achieve speed reduction, transmission efficiency is improved through lead screw transmission, abrasion of transmission parts is reduced, a steering wheel rotates to drive the transmission lead screw to transversely pull wheels on the two sides to make a turn, and the assembly difficulty is reduced.

    本发明涉及车辆技术领域,具体涉及一种车辆转向装置、助力系统及助力转向控制方法。车辆转向装置包括车辆单元和转向传动单元,车辆单元包括方向盘和车轮,转向传动单元包括第一圆柱齿轮、传动丝杆以及面齿轮,第一圆柱齿轮与方向盘连接,车轮分别设置在传动丝杆的两端,面齿轮固定设置,且面齿轮与传动丝杆配合,第一圆柱齿轮与面齿轮啮合连接。助力系统包括控制器、角度传感器、助力电机以及第二圆柱齿轮,第二圆柱齿轮与所述第一圆柱齿轮啮合连接。本发明由面齿轮将第一圆柱齿轮的转速进行降低,以增大扭矩实现减速,利用丝杆传动提高传动效率,降低传动零件的磨损,实现方向盘转动驱动传动丝杆横向拉动两侧的车轮发生转弯,降低装配难度。


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    Title :

    Vehicle steering device, power-assisted system and power-assisted steering control method


    Additional title:

    一种车辆转向装置、助力系统及助力转向控制方法


    Contributors:
    ZHAO NING (author) / DU MINBO (author)

    Publication date :

    2025-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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