The invention relates to the technical field of power batteries of electric vehicles, in particular to a high-voltage power-on control method for a battery pack of an electric vehicle, and particularly relates to a novel high-voltage control method for the battery pack. According to the invention, the battery manager independently completes relay control and front-end and rear-end voltage value data acquisition in the high-voltage process of the electric vehicle; a CAN communication network does not need to receive a vehicle control unit control relay instruction and a motor controller does not need to send a pre-charging voltage value, and high-voltage power-on delay and power-on failure caused by communication interruption due to data error frames caused by electromagnetic interference on the CAN communication network in the high-voltage power-on process are avoided. The high-voltage power-on time is shortened, and the high-voltage power-on control link is reduced; and the electric vehicle is prevented from failing to drive.

    本发明涉及电动汽车动力电池技术领域,特别涉及电动汽车电池包高压电上电控制方法,具体为一种新型电池包高压控制方法。本发明电动汽车上高压电过程电池管理器单独完成继电器控制及前端后端电压值数据采集,无需通过CAN通信网络接受整车控制器控制继电器指令及电机控制器发送预充电压值,避免在上高压电过程因CAN通信网络受到电磁干扰引发数据错误帧导致通信中断产生高压上电延时及上电失败;缩短上高压电时间,减少上高压电控制环节;避免电动汽车启动失败无法行驶。


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    Title :

    Novel battery pack high-voltage control method


    Additional title:

    一种新型电池包高压控制方法


    Contributors:
    LYU KECHENG (author) / WANG MINGDONG (author) / WANG QI (author)

    Publication date :

    2020-09-11


    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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