The embodiment of the invention discloses an electric vehicle torque control method and device, an electric vehicle and a storage medium. The method comprises the steps that an encoder signal of a motor encoder in the current period is obtained; calculating the whole vehicle speed and the motor acceleration in the current period according to the encoder signal; calculating an adhesion coefficient of a tire and a road surface in the current period based on the vehicle speed and a predetermined road surface adhesion parameter; and determining the target torque of the motor in the current period based on the adhesion coefficient of the tire and the road surface and the motor acceleration, and controlling the torque output by the motor in the current period according to the target torque. According to the method provided by the embodiment of the invention, the target torque output by the motor can be determined according to the acceleration of the motor and the adhesion coefficient of the tire and the road surface, and the torque actually output by the motor is adjusted in real time according to the target torque, so that sideslip and rollover of the electric vehicle are prevented, and the driving safety of the two-wheeled electric vehicle is improved.

    本发明实施例公开了一种电动车转矩控制方法、装置、电动车和存储介质,该方法包括:获取电机编码器在当前周期的编码器信号;根据编码器信号计算在当前周期的整车速度和电机加速度;基于整车速度和预先确定的路面附着参数计算在当前周期的轮胎与路面的附着系数;基于轮胎与路面的附着系数和电机加速度确定电机在当前周期的目标转矩,并根据目标转矩控制电机在当前周期输出的转矩。本发明实施例的方法可以根据电机加速度和轮胎与路面的附着系数确定电机输出的目标转矩,并根据目标转矩对电机实际输出的转矩进行实时调整,防止电动车发生侧滑、侧翻的情况发生,提高了两轮电动车行驶的安全性。


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    Title :

    Electric vehicle torque control method and device, electric vehicle and storage medium


    Additional title:

    一种电动车转矩控制方法、装置、电动车和存储介质


    Contributors:
    LIU TIEDING (author) / GAO YU (author) / HU WEICHAO (author) / CHEN QINGFU (author) / ZHANG LIUPENG (author)

    Publication date :

    2023-09-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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