The invention discloses a motor drive control method and device of an electric vehicle, the electric vehicle and a medium. The method comprises the steps that after a vehicle enters a normal driving working condition, brake signal detection is conducted; if it is detected that the brake signal exists currently, the current recovery power of brake energy recovery is determined; and if the current recovery power is larger than a set first power limit value, a motor driving system is controlled to enter a dual-motor working mode, and braking energy recovery is carried out in the dual-motor working mode. The working mode of the motor is determined from multiple dimensions such as the influence of a brake signal, the influence of double motors on brake energy recovery and single-double motor switching caused by a motor power limit value, the maximum recovery capacity of the system is exerted, the system efficiency is improved, power waste is avoided, and the system reliability is improved. And the working mode of the motor is switched according to the output rotating speed value and the actually required power, so that the problem of slow system dynamic response caused by the fact that the required torque in the starting stage is large and the dual-motor working mode is immediately converted is avoided.

    本发明公开了一种电动车辆的电机驱动控制方法、装置、电动汽车及介质。该方法包括:在车辆进入正常驾驶工况后,进行刹车信号检测;如果检测到当前存在刹车信号,则确定制动能量回收的当前回收功率;如果所述当前回收功率大于设定的第一功率限值,则控制电机驱动系统进入双电机工作模式,以在双电机工作模式下进行制动能量回收。本申请从刹车信号影响、双电机对刹车能量回收的影响、电机功率限值造成单双电机切换等多个维度来确定电机的工作模式,发挥系统最大回收能力,提高系统效率,避免功率浪费,且根据输出转速值以及实际所需要的功率切换电机工作模式,避免由于起步阶段需求扭矩大,立马转变为双电机工作模式,导致的系统动力响应慢的问题。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Motor drive control method and device of electric automobile, electric automobile and medium


    Weitere Titelangaben:

    电动汽车的电机驱动控制方法、装置、电动汽车及介质


    Beteiligte:
    CHEN JIANXUN (Autor:in) / DONG YU (Autor:in) / LI RUI (Autor:in) / GU QIANG (Autor:in) / QIAN HAO (Autor:in)

    Erscheinungsdatum :

    2022-12-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



    MOTOR DRIVE DEVICE FOR ELECTRIC AUTOMOBILE

    NISHIKAWA AKIYOSHI | Europäisches Patentamt | 2016

    Freier Zugriff

    ELECTRIC-AUTOMOBILE MOTOR DRIVE APPARATUS

    OI SHOHEI | Europäisches Patentamt | 2023

    Freier Zugriff

    Motor drive control system of electric automobile

    YUAN ZHIMEI | Europäisches Patentamt | 2024

    Freier Zugriff

    ELECTRIC MOTOR DRIVE APPARATUS AND ELECTRIC AUTOMOBILE

    TANG JIE / YANG LIZHOU / YI JIE | Europäisches Patentamt | 2021

    Freier Zugriff

    Electric automobile motor controller, motor control method and electric automobile

    WANG LIBIN / CHEN SANCHENG | Europäisches Patentamt | 2020

    Freier Zugriff