The invention discloses a method and device for determining the steering transmission ratio of a vehicle, and relates to the technical field of vehicle steering control. According to the technical scheme, at least one target parameter of the vehicle on different road surfaces is obtained, and the yaw velocity gain of the vehicle on each road surface is determined according to the target parameter of each road surface; the determined yaw velocity gain is associated with the adhesive force between the vehicle tires and the road surface, the yaw velocity gain is input into a preset curve fitting model, a steering transmission ratio curve of each road surface can be obtained, and in order to make vehicle steering smoother and more controllable, the steering transmission ratio curves are smoothed, so that the steering accuracy of the vehicle is improved. According to the scheme, the reliability of steering control of the vehicle on different road surfaces is improved.

    本发明公开了一种车辆的转向传动比的确定方法和装置,涉及车辆转向控制的技术领域。本发明的技术方案通过获取车辆在不同路面的至少一项目标参数,根据每种路面的目标参数确定出车辆在每种路面的横摆角速度增益,由于目标参数为关联车辆的路面附着力的参数,所确定的横摆角速度增益关联车辆轮胎与路面的附着力,将横摆角速度增益输入预设的曲线拟合模型,可以获得每种路面的转向传动比曲线,为使车辆转向更平滑可控,对转向传动比曲线进行平滑处理,以获得车辆在每种路面的不同车速所对应的转向传动比,该方案提高了车辆在不同路面实施转向控制的可靠性。


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    Title :

    Method and device for determining steering transmission ratio of vehicle


    Additional title:

    一种车辆的转向传动比的确定方法和装置


    Contributors:
    ZHANG GUOQING (author) / ZHANG ZEYANG (author) / ZHAO CHUNLAI (author) / YANG PING (author) / ZHANG YANG (author)

    Publication date :

    2024-09-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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