The invention discloses a distributed driving automobile overspeed instability alarm control method and system, and the method comprises the steps: measuring the longitudinal and lateral acceleration of an automobile through an acceleration sensor, measuring the speed of the automobile through an automobile speed sensor, and measuring the rotating speeds of four wheels through a wheel speed sensor; the road adhesion coefficient is estimated through an adhesion coefficient estimation unit, the vertical force of the automobile is calculated according to the data obtained by the automobile structure parameters, the acceleration sensor and the wheel rotating speed sensor, and the road adhesion coefficient is calculated according to the vertical force of the automobile and the road adhesion coefficient estimated by the adhesion coefficient estimation unit. The tire slip angle of the automobile is calculated according to the steering angle of a tire steering wheel and the transverse and longitudinal speeds of the automobile, the slip rate of the automobile is calculated according to a wheel speed sensor and an automobile speed sensor, the automobile instability phenomenon is prevented, and the automobile driving safety is improved.

    本发明公开一种分布式驱动汽车过速失稳警报控制方法及系统,该方法包括通过加速度传感器测量车辆纵向和侧向加速度、车速传感器测量汽车车速以及轮速传感器测量四个车轮转速,且通过附着系数估算单元估算路面附着系数、根据汽车结构参数、加速度传感器以及车轮转速传感器得到的数据,计算汽车垂向力、根据汽车垂向力和附着系数估算单元估计的路面的附着系数,进行轮胎最大抓地力计算、根据轮胎方向盘转角和汽车横纵向速度计算汽车的轮胎侧偏角,根据轮速传感器和车速传感器计算汽车的滑移率等,本发明防止汽车失稳现象发生,提高了汽车驾驶的安全性。


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    Title :

    Distributed driving automobile overspeed instability alarm control method and system


    Additional title:

    一种分布式驱动汽车过速失稳警报控制方法及系统


    Contributors:
    LI JIANHUA (author) / SONG QI (author) / JIN LIQIANG (author) / LIU SHAOJIE (author) / ZHOU YANBO (author)

    Publication date :

    2024-06-14


    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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