The invention provides a parking braking wheel steering angle calculation method of an all-wheel independent steering automobile. The method is suitable for a vehicle with a four-wheel independent steering function with a wheel steering angle not less than +/-90 degrees and a wheel steering unit capable of self-locking in the absence of a steering signal, and comprises the following steps: when the vehicle needs to be parked, calling vehicle parameters and collecting external road information; the steering angles required by the front wheel and the rear wheel of the vehicle are calculated according to the method, the front wheel and the rear wheel are controlled to rotate to the steering angles, and therefore the stable parking process of the vehicle can be achieved under various road conditions without depending on a traditional mechanical friction and locked parking braking mechanism. According to the method, it can be guaranteed that the vehicle still has sufficient residual adhesive force under different slopes so as to resist wind power interference from different directions, meanwhile, system assemblies are reduced, cost is reduced, and meanwhile parking safety of the type of vehicles is guaranteed under the condition that parking braking devices are not needed.

    本文提出了全轮独立转向汽车的驻车制动车轮转向角度计算方法。所述方法适用于具备车轮转向角度不少于±90°的四轮独立转向功能,同时在无转向信号时车轮转向单元可以自锁的车辆,所述方法包括:在车辆需要驻车时,调取车辆参数并采集外部道路信息,根据所述方法计算车辆前、后车轮各自所需转向角度,控制前、后车轮转动至所述转向角度,从而完成车辆在各种路况下无需依赖传统机械摩擦与锁死的驻车制动机构即可实现的稳定驻车过程。所述方法可以保证车辆在不同坡度下仍具有充足的剩余附着力以抵御来自不同方向的风力干扰,同时减少系统总成、降低成本的同时保证了此类车辆无需驻车制动装置情况下的驻车安全。


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    Title :

    Parking braking wheel steering angle calculation method of all-wheel independent steering automobile


    Additional title:

    全轮独立转向汽车的驻车制动车轮转向角度计算方法


    Contributors:
    WANG JUNNIAN (author) / WANG YITONG (author) / WANG SIQING (author) / ZHU JIACHENG (author) / ZHOU ZIDONG (author)

    Publication date :

    2024-05-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge




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