The invention relates to an automobile anti-lock braking prediction control method which comprises the steps that (1) a slip rate control unit triggers anti-lock braking according to the automobile body state, the wheel state and the automobile braking system state of an automobile; (2) the slip rate control unit obtains a pre-stored discretized dynamic equation; (3) the slip rate control unit estimates the torque lumped disturbance term and the flow lumped disturbance term in real time; (4) the slip rate control unit establishes a prediction model of the wheel slip rate and predicts all possible values of the wheel slip rate in a down-sampling period; (5) the slip rate control unit determines the optimal predicted value and the corresponding optimal state vectors of the liquid inlet valve and the liquid outlet valve; and (6) the slip rate control unit controls the liquid inlet valve and the liquid outlet valve to execute opening or closing actions according to the optimal state vectors, corresponding to the optimal predicted values, of the liquid inlet valve and the liquid outlet valve, and dynamic adjustment of the wheel slip rate is achieved.
本发明涉及一种汽车防抱死制动预测控制方法,包括:(1)所述滑移率控制单元根据汽车的车身状态、车轮状态以及汽车制动系统状态,触发防抱死制动;(2)所述滑移率控制单元获取预先存储的离散化的动态方程;(3)所述滑移率控制单元实时估计所述力矩集总扰动项和所述流量集总扰动项;(4)所述滑移率控制单元,建立车轮滑移率的预测模型,并预测一下采样周期的车轮滑移率的所有可能值;(5)所述滑移率控制单元,确定最优预测值及对应的进液阀和出液阀的最优状态矢量;(6)所述滑移率控制单元,根据最优预测值对应的进液阀和出液阀的最优状态矢量,控制进液阀和出液阀执行打开或闭合的动作,实现车轮滑移率的动态调节。
Automobile anti-lock braking prediction control method and device
一种汽车防抱死制动预测控制方法及装置
2024-06-28
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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