The invention provides an automobile limp control method and device, which are applied to the technical field of automobiles. When a motor controller MCU does not receive communication information ofa vehicle control unit VCU within a first preset duration, the MCU judges that the VCU breaks down, a vehicle enters a limp mode, the MCU sends a limp instruction to a battery management system controller BMU, after receiving a response instruction fed back by the BMU, the MCU judges whether the vehicle meets a preset vehicle condition or not, and if the vehicle meets the preset vehicle condition,the MCU controls a motor to output a preset torque and controls the vehicle to continue to run. According to the method and device provided by the invention, when the VCU fails and cannot continue tocontrol the vehicle to run, the MCU controls torque output of the motor; therefore, the vehicle can continue to run in a fault state, so that a user can drive the vehicle home or to a repair shop tomaintain the vehicle, and the driving experience of the user is effectively improved.

    本发明提供的汽车跛行控制方法及装置,应用于汽车技术领域,当电机控制器MCU在第一预设时长内没有接收到整车控制器VCU的通讯信息的情况下,MCU即判定VCU发生故障,车辆进入跛行模式,MCU向电池管理系统控制器BMU发送跛行指令,并在接收到BMU反馈的响应指令后,判断车辆是否满足预设车况,如果车辆满足预设车况,MCU控制电动机输出预设扭矩,控制车辆继续行驶,本发明申请提供的方法及装置,在VCU发生故障无法继续控制车辆行驶时,由MCU控制电动机的扭矩输出,使车辆在故障状态下能够继续行驶,以便用户能够将车辆行驶回家或行驶至修理厂对车辆进行维修,有效提高用户的驾驶体验。


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    Title :

    Automobile limp control method and device


    Additional title:

    一种汽车跛行控制方法及装置


    Contributors:
    WANG LIN (author) / YE JIN (author) / LI XIANGHUA (author) / REN QIANMENG (author) / WANG ZHIXIANG (author)

    Publication date :

    2021-03-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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