The embodiment of the invention relates to the field of steering systems, and particularly discloses an FSAE racing car four-wheel steering system. The embodiment of the invention discloses an FSAE racing car four-wheel steering system. The FSAE racing car four-wheel steering system comprises a front wheel mechanical subsystem and a rear wheel mechanical subsystem, the rear wheel electric control steering subsystem adopts double-motor steering; controlling the steering angles of all the wheels of the driving rear wheel steering; and control strategy setting is carried out according to front and rear wheel proportional control or front and rear wheel proportional control + yaw velocity feedback control. Only rear wheels need to be refitted, cost is saved, refitting is facilitated, control strategy setting is combined with actual working conditions and real car data, the FSAE racing car can be better matched, a worm rack transmission mechanism is used, rotary motion of a servo motor is converted into linear motion, control is more sensitive, the control stability of the racing car is improved, and the control efficiency is improved. The dynamic response characteristic of an automobile to steering wheel input can be improved, the high-speed running stability of the automobile is obviously improved, and the high-speed running safety of the automobile is improved.

    本发明实施例涉及转向系统领域,具体公开了一种FSAE赛车四轮转向系统。本发明实施例公开的FSAE赛车四轮转向系统,包括:前轮机械子系统采用齿轮齿条转向器;后轮电控转向子系统采用双电机转向;进行主动后轮转向各车轮转角控制;按照前后轮比例控制或前后轮比例控制+横摆角速度反馈控制进行控制策略设置。只需对后轮进行改装,节约成本,便于改装,且控制策略设置结合实际工况及实车数据,能够更加匹配FSAE赛车,使用蜗杆齿条传动机构,将伺服电机的旋转运动转化为直线运动,使得控制更加灵敏,有利于提高赛车的操纵稳定性,能够改善汽车对转向盘输入的动态响应特性,明显改善车辆高速行驶的稳定性,提高车辆高速行驶的安全性。


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    Title :

    FSAE racing car four-wheel steering system


    Additional title:

    一种FSAE赛车四轮转向系统


    Contributors:
    QIAN BAICHUAN (author) / SHUAI ZIXUAN (author) / LIU YILIN (author) / WANG DA (author)

    Publication date :

    2023-09-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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