Aspects of the invention provide a vehicle motion control system, a steering assist unit, and a steering assist method. According to an embodiment of the invention, the steering assistance method of the vehicle comprises the following steps: transmitting a minimum turning radius which can be provided by a steering assistance function to a driving assistance control unit of the vehicle; receiving a steering assistance request including a target turning radius from a driving assistance control unit; vehicle braking pressure corresponding to the target turning radius is determined through a vehicle turning model; determining whether an actual turning radius after the vehicle executes the determined brake pressure matches a target turning radius; if it is judged that the actual turning radius is not matched with the target turning radius, according to the difference value of the actual turning radius relative to the target turning radius, closed-loop control is adopted to calculate the determined adjusting value of the brake pressure; and if it is judged that the actual turning radius is matched with the target turning radius, the determined brake pressure is kept unchanged.

    本发明的多个方面供了车辆运动控制系统、转向辅助单元和转向辅助方法。根据本发明的实施例,车辆的转向辅助方法包括:向车辆的驾驶辅助控制单元发送转向辅助功能能够提供的最小转弯半径;接收来自于驾驶辅助控制单元的包含目标转弯半径的转向辅助请求;采用车辆转弯模型确定出与目标转弯半径相对应的车辆制动压力;判断在车辆执行了确定出的制动压力之后的实际转弯半径是否匹配目标转弯半径;如果判定为实际转弯半径不匹配目标转弯半径,则根据实际转弯半径相对于目标弯半径的差值,并采用闭环控制计算确定出的制动压力的调节值;以及如果判定为实际转弯半径匹配目标转弯半径,则保持确定出的制动压力不变。


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    Title :

    Vehicle motion control system, steering assist unit, and steering assist method


    Additional title:

    车辆运动控制系统、转向辅助单元和转向辅助方法


    Contributors:
    LIU QIANG (author) / CHEN YAN (author)

    Publication date :

    2025-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / 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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