The invention discloses a torque control method and device for a dual-motor four-wheel-drive electric vehicle, and the method comprises the steps: recognizing a driving mode in real time when the vehicle is in a D gear, a brake is loosened, and a driving mode effective position is effective; the vehicle speed and the actual accelerator opening degree of the vehicle are collected in real time; the actual accelerator opening degree is converted into a virtual accelerator opening degree corresponding to the driving mode; determining the required torque of the driver according to the virtual accelerator opening degree and the vehicle speed; determining the torque distribution proportion of the front motor and the rear motor according to the required torque of the driver and the driving mode; and determining the required torque of the front motor and the rear motor according to the torque distribution proportion, the speed ratio of the front motor and the speed ratio of the rear motor. According to the method and the device, the distinction degree between the driving modes during driving is improved, each driving mode has operation stability, and the driving experience is improved.

    本申请公开了一种双电机四驱电动汽车的扭矩控制方法及装置,方法包括:在车辆处于D挡且已经松掉刹车、驾驶模式有效位为有效时,实时识别驾驶模式;实时采集车辆的车速和实际油门开度;将实际油门开度转化为与驾驶模式对应的虚拟油门开度;依据虚拟油门开度和车速确定驾驶员的需求扭矩;依据驾驶员的需求扭矩和驾驶模式确定前电机和后电机的扭矩分配比例;依据扭矩分配比例、前电机的速比以及后电机的速比确定前电机和后电机的需求扭矩。本申请提高了驾驶时驾驶模式之间的区分度,并且使得每个驾驶模式均具有操作稳定性,改善了驾驶体验。


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    Title :

    Torque control method and device for double-motor four-wheel-drive electric automobile


    Additional title:

    一种双电机四驱电动汽车的扭矩控制方法及装置


    Contributors:
    CUI YOULI (author) / HU ZHANGLIN (author) / LANG JINPING (author) / GANCHIN (author) / TANG XING (author) / HONG XUECHEN (author)

    Publication date :

    2024-06-07


    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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