An electric drive steer-by-wire system based on a T-shaped lead screw and a planetary reducer comprises a steering drive device, a steering knuckle arm, steering pull rods and wheel edge assemblies, the two ends of the steering knuckle arm are connected with the wheel edge assemblies through the steering pull rods respectively, and the steering drive device comprises a steering drive motor, the planetary reducer and a T-shaped lead screw mechanism. An output shaft of the steering driving motor is connected with the planetary reducer, a planet carrier output shaft of the planetary reducer is connected with the output gear, the T-shaped lead screw mechanism comprises a left end cover, a right end cover, a T-shaped lead screw and a T-shaped nut gear, the left end cover and the right end cover are fixedly connected to form a containing cavity, and the T-shaped nut gear is installed in the containing cavity. The output gear is meshed with a T-shaped nut gear, a T-shaped lead screw is connected into a threaded hole of the T-shaped nut gear, and the T-shaped lead screw is connected with the third end of the steering knuckle arm through a connecting rod. According to the invention, large steering driving power can be provided, and the device is suitable for large-tonnage vehicle models; the chassis arrangement space is saved, the whole vehicle mass is reduced, and the cost is reduced.

    一种基于T型丝杆和行星减速器的电驱动线控转向系统,包括转向驱动装置、转向节臂、转向拉杆及轮边总成,转向节臂的两端分别通过转向拉杆连接轮边总成,转向驱动装置包括转向驱动电机、行星减速器及T型丝杆机构,转向驱动电机的输出轴连接行星减速器,行星减速器的行星架输出轴连接输出齿轮,T型丝杆机构包括左端盖、右端盖、T型丝杆及T型螺母齿轮,左端盖与右端盖固定连接并形成容置空腔,T型螺母齿轮安装在容置空腔内,输出齿轮与T型螺母齿轮啮合,T型螺母齿轮的螺纹孔内连接T型丝杆,T型丝杆通过连杆与转向节臂的第三端连接。本发明不仅可提供较大的转向驱动动力,适用于较大吨位车型;且节省底盘布置空间,减少整车质量,降低成本。


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    Title :

    Electric drive steer-by-wire system based on T-shaped lead screw and planetary reducer


    Additional title:

    一种基于T型丝杆和行星减速器的电驱动线控转向系统


    Contributors:
    BAI XUESEN (author) / SU LIANG (author) / CAI ZIJIA (author) / YANG GUOKU (author) / SUN SHUGUANG (author) / LEE SUN-GYOU (author) / LIU ZHIWEI (author) / LIU JIANFENG (author) / GONG GANG (author) / FANG YUAN (author)

    Publication date :

    2024-01-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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