The invention provides a vehicle weight estimation method and device, a vehicle and a readable storage medium. The method comprises the steps: acquiring the current state information of the vehicle; based on the current state information, recording an acceleration detection value of the vehicle and a ramp angle value of a current driving road of the vehicle when the vehicle is in a zero torque output state; and inputting the acceleration detection value and the ramp angle value into a target dynamic whole vehicle weight estimation algorithm model to obtain vehicle weight information. The acceleration detection value of the vehicle and the ramp angle value of the current driving road of the vehicle are detection information when the vehicle is in the zero torque output state, so that the influence of the motor torque error on the vehicle weight estimated value is reduced, the accuracy of the estimated vehicle weight information is improved, and finally the influence of the vehicle weight information estimation precision on the power output of the vehicle and a safety system is reduced.

    本发明提供了一种车重估算方法、装置、车辆和可读存储介质,其中,车重估算方法,包括:获取车辆的当前状态信息;基于当前状态信息,记录车辆处于零扭矩输出状态下,车辆的加速度检测值和车辆的当前行驶道路的坡道角度值;将加速度检测值和坡道角度值输入至目标动态整车重量预估算法模型,得到车重信息,由于车辆的加速度检测值和车辆的当前行驶道路的坡道角度值是在车辆处于零扭矩输出状态下的检测信息,因此,降低了电机扭矩误差对车重预估值的影响,提高了估算得到的车重信息的准确性,最终降低车重信息估计精度对车辆的动力输出和安全系统的影响。


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    Title :

    Vehicle weight estimation method and device, vehicle and readable storage medium


    Additional title:

    车重估算方法、装置、车辆和可读存储介质


    Contributors:
    LUO RUI (author) / WU SHUAIGANG (author) / LONG CHENGBING (author)

    Publication date :

    2021-08-17


    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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