The invention discloses an automobile stability prediction control method and system, and the method comprises the steps: defining the effective state vector of an oil inlet valve group and an oil outlet valve group of an electronic hydraulic brake system and the effective flow vector of a brake wheel cylinder group according to the judgment result of the vehicle triggering stability control; based on the effective state vectors of the oil inlet valve group and the oil outlet valve group, a dynamic equation representing the effective flow vector of the brake wheel cylinder group to the vehicle yaw velocity is constructed; predicting a future state of the vehicle yaw velocity based on the dynamic equation to obtain a state prediction result, and obtaining an optimal state vector of the oil inlet valve group and the oil outlet valve group through a cost function of vehicle yaw velocity control obtained based on the state prediction result; and the optimal state vectors of the oil inlet valve set and the oil outlet valve set are calculated and analyzed through the electronic hydraulic braking system, and the vehicle yaw velocity is dynamically adjusted and controlled according to the calculation and analysis result. According to the invention, dynamic adjustment of the yaw velocity of the vehicle can be effectively realized.

    本发明公开了一种汽车稳定性预测控制方法及系统,该方法,包括根据车辆触发稳定性控制的判断结果定义电子液压制动系统的进油阀组和出油阀组的有效状态矢量以及制动轮缸组的有效流量矢量;基于进油阀组和出油阀组的有效状态矢量构建表征制动轮缸组的有效流量矢量至车辆横摆角速度的动态方程;基于动态方程对车辆横摆角速度的未来状态进行预测得到状态预测结果,并通过基于状态预测结果得到的车辆横摆角速度控制的代价函数获取进油阀组和出油阀组的最优状态矢量;利用电子液压制动系统对进油阀组和出油阀组的最优状态矢量进行计算分析,以根据计算分析结果进行车辆横摆角速度的动态调节控制。本发明可以有效实现车辆横摆角速度的动态调节。


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    Title :

    Automobile stability prediction control method and system


    Additional title:

    一种汽车稳定性预测控制方法及系统


    Contributors:
    MA RUIHAI (author) / ZHANG JUNZHI (author) / HE CHENGKUN (author) / LIU WEILONG (author)

    Publication date :

    2024-05-03


    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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