The invention provides a vehicle control method based on steering ratio switching, an electronic control unit and an electric vehicle. The method comprises the steps of obtaining a hand wheel angle and a road wheel angle of a vehicle and a steering ratio corresponding to a to-be-switched driving mode in response to a driving mode switching instruction of a user for the vehicle; whether the hand wheel angle and the road wheel angle are within a preset angle range or not is determined, and when it is determined that the hand wheel angle and the road wheel angle are within the preset angle range, whether the hand wheel angle of the vehicle changes or not is determined; when it is determined that the hand wheel angle changes, the hand wheel angle and the road wheel angle of the vehicle at the current moment are obtained, and the target road wheel angle of the vehicle at the current moment is determined according to the steering ratio and the hand wheel angle of the vehicle at the current moment; and according to the target road wheel angle of the vehicle at the current moment and the road wheel angle of the vehicle at the current moment, the target steering ratio of the vehicle is determined, and the vehicle is controlled to operate at the target steering ratio. And non-inductive switching of the steering ratio of the vehicle can be realized.

    本申请提供一种基于转向比切换的车辆控制方法、电子控制单元及电动汽车。该方法包括响应于用户针对车辆的驾驶模式切换指令,获取车辆的手轮角度,路轮角度和待切换驾驶模式对应的转向比;确定手轮角度和路轮角度是否在预设的角度范围内,并在确定手轮角度和路轮角度在预设的角度范围内时,确定车辆的手轮角度是否发生变化;在确定手轮角度发生变化时,获取车辆在当前时刻下的手轮角度和路轮角度,并根据转向比和车辆在当前时刻下的手轮角度确定车辆在当前时刻下的目标路轮角度;根据车辆在当前时刻下的目标路轮角度和车辆在当前时刻下的路轮角度,确定车辆的目标转向比,控制车辆以目标转向比运行。能够实现对车辆转向比的无感切换。


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    Title :

    Vehicle control method based on steering ratio switching, electronic control unit and electric vehicle


    Additional title:

    基于转向比切换的车辆控制方法、电子控制单元及电动汽车


    Contributors:
    XIANG SHOUZHI (author) / SHI MINGYU (author) / YE LIANG (author)

    Publication date :

    2024-06-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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