The invention belongs to the technical field of automobile drive-by-wire chassis and control of the automobile drive-by-wire chassis, and particularly relates to an automobile braking force dynamic distribution method based on tire lateral force prediction, which comprises the following steps: step 1, designing a tire lateral force prediction controller; 2, estimating the vertical load of the wheel; 3, estimating the tire cornering stiffness; 4, solving an attachment ellipse; and 5, dynamically distributing the braking force. According to the dynamic distribution method for the braking force, the braking force distribution proportion of the front axle, the rear axle, the left wheel and the right wheel can be dynamically adjusted in real time according to the driving working condition, the load state and the road adhesion condition of the automobile, and the tracking capacity of the automobile is improved while the steering braking stability of the automobile is ensured.

    本发明属于汽车线控底盘及其控制技术领域,具体涉及一种基于轮胎侧向力预测的汽车制动力动态分配方法,包含以下步骤:步骤一:轮胎侧向力预测控制器设计;步骤二:车轮垂向载荷估算;步骤三:轮胎侧偏刚度估算;步骤四:附着椭圆求解;步骤五:制动力动态分配。本发明所提出的制动力动态分配方法能够根据汽车的行驶工况、载荷状态和路面附着条件实时、动态地调节前后轴、左右侧各车轮制动力分配比例,在确保汽车转向制动稳定性的同时改善其循迹能力。


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    Titel :

    Braking force dynamic distribution method based on tire lateral force prediction


    Weitere Titelangaben:

    一种基于轮胎侧向力预测的制动力动态分配方法


    Beteiligte:
    WU TONG (Autor:in) / YANG XIAOJUN (Autor:in) / RONG JIN (Autor:in) / MENG YANG (Autor:in) / SHI LEI (Autor:in) / HE HUANLI (Autor:in) / YANG ZHENGCAI (Autor:in)

    Erscheinungsdatum :

    2024-04-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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