The invention discloses a vehicle steering control method and system based on a parking system, and the method comprises the steps: building a vehicle steering angle model based on a wheel speed according to vehicle steering parameters; according to the vehicle steering angle model, the vehicle inner side front wheel turning radius and the vehicle steering angle are calculated; braking control is conducted on inner wheels and outer wheels of the vehicle, and a first control target value of the steering angle ratio between the front wheels and the rear wheels on the inner side of the vehicle and a second control target value of the steering angle ratio between the front wheels and the rear wheels on the outer side of the vehicle are obtained through calculation; according to the first control target value and the second control target value, the steering angles of the front wheels on the inner side and the outer side of the vehicle are correspondingly adjusted, so that the adjusted steering angle ratio between the front wheels on the inner side of the vehicle and the rear wheels is equal to the first control target value, and the steering angle ratio between the front wheels on the outer side of the vehicle and the rear wheels is equal to the second target value. According to the invention, more free, more flexible and wider-range angle control of the parking system can be realized, and the significance of the parking system is ensured.

    本发明公开了一种基于泊车系统的车辆转向控制方法与控制系统,包括:根据车辆转向参数,建立基于轮速的车辆转向角模型;根据车辆转向角模型计算得到车辆内侧前轮转弯半径和车辆转向角;对车辆的内轮和外轮分别做制动控制,计算得到车辆内侧前轮与后轮之间转向角之比的第一控制目标值以及车辆外侧前轮与后轮转向角之比的第二控制目标值;根据第一控制目标值和第二控制目标值分别对应调整车辆内侧和车辆外侧前轮的转向角,使得调整后的车辆内侧前轮与后轮之间转向角之比等于第一控制目标值以及车辆外侧前轮与后轮转向角之比等于第二目标值。本发明能实现泊车系统更自由更灵活更大范围的角度控制,保证了泊车系统的意义。


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    Title :

    Vehicle steering control method and control system based on parking system


    Additional title:

    一种基于泊车系统的车辆转向控制方法与控制系统


    Contributors:
    WEN YI (author) / LI HONGLIN (author) / PEI SHUANGHONG (author) / SUN GUOZHENG (author) / DING ZONGYANG (author)

    Publication date :

    2024-01-16


    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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