The invention provides a starting method and device of an electric vehicle. The starting method and device are suitable for a battery management system (BMS) of the electric vehicle. The method comprises the steps that when a wake-up signal is received, a BMS is powered on, and insulation detection on a high-voltage system of the electric vehicle is started. And if it is detected that the high-voltage system does not have the insulation fault and a vehicle ignition signal of the electric vehicle is detected within a preset time period, the BMS controls the high-voltage system to conduct high-voltage power-on on the electric vehicle so as to start the electric vehicle. By adopting the method, the starting safety of the electric automobile can be improved, and the applicability is high.

    本申请提供了一种电动汽车的启动方法及装置,其适用于电动汽车的电池管理系统BMS。该方法包括:当接收到唤醒信号时,BMS上电并启动对电动汽车的高压系统的绝缘检测。若检测得到高压系统不存在绝缘故障,且在预设时长内检测到电动汽车的车辆点火信号,则BMS控制高压系统对电动汽车进行高压上电,以启动电动汽车。采用本申请,可提高电动汽车的启动安全性,适用性高。


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    Title :

    Starting method and device of electric automobile


    Additional title:

    电动汽车的启动方法及装置


    Contributors:

    Publication date :

    2022-04-08


    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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