The invention provides a torque distribution method and device for a multi-motor electric vehicle and the electric vehicle. The electric automobile at least comprises three motors. The torque distribution method comprises the steps that torque distribution for M motors is determined according to the required torque of the electric vehicle and the maximum torque of each motor, and M is smaller than or equal to the total number of the motors; when M is larger than or equal to 3, n times of torque pre-distribution are conducted on the M motors according to a pre-distribution strategy, and n is larger than or equal to 1; determining the sum of the electric power of the M motors each time according to the pre-distributed torque of each motor and the efficiency of the motor; and determining the pre-distributed torque corresponding to the minimum value of the sum of the electric power as the torque distributed to the M motors. The working efficiency of the motor can be improved.

    本申请提供一种多电机电动汽车的扭矩分配方法、装置及电动汽车。电动汽车至少包括三个电机。扭矩分配方法包括:根据电动汽车的需求扭矩和每个电机的最大扭矩,确定为M个电机分配扭矩,其中,M小于等于电机的总数量;当M≥3时,按照预分配策略为M个电机进行n次预分配扭矩,其中,n≥1;根据每个电机的预分配扭矩、电机的效率,确定每次M个电机的电功率之和;将电功率之和的最小值对应的预分配扭矩,确定为分配给M个电机的扭矩。本申请可提高电机工作效率。


    Access

    Download


    Export, share and cite



    Title :

    Torque distribution method and device for multi-motor electric automobile and electric automobile


    Additional title:

    多电机电动汽车的扭矩分配方法、装置及电动汽车


    Contributors:
    TUO HAIDONG (author) / GOU BO (author) / LI MI (author) / GUAN ZHENGWEI (author) / XIAO BIN (author)

    Publication date :

    2024-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



    Electric automobile driving motor torque control method

    CUI ZHENYANG / FAN GUANGLI / YANG JUN et al. | European Patent Office | 2022

    Free access

    Electric automobile motor torque automatic regulator

    RAO XINPING / HUANG PINGLIN | European Patent Office | 2022

    Free access

    ELECTRIC AUTOMOBILE-BRAKING TORQUE GENERATION DEVICE AND ELECTRIC AUTOMOBILE

    SHIBAYAMA NAOSHI | European Patent Office | 2020

    Free access

    ELECTRIC AUTOMOBILE-BRAKING TORQUE GENERATION DEVICE AND ELECTRIC AUTOMOBILE

    SHIBAYAMA NAOSHI | European Patent Office | 2020

    Free access

    Motor torque control method for dual-motor electric automobile

    CHEN XIAOJIE / ZHANG SONG / AN LIQIANG et al. | European Patent Office | 2025

    Free access