According to the heating control system and method for the battery pack of the electric motor coach, when the coach is started at the environment temperature not suitable for a battery, a BMS sends a signal to a VCU through a CAN network after monitoring is conducted, so that the VCU controls a reversing valve to be opened through the CAN network, a motor cooling loop is communicated with a battery cooling loop, and the battery pack is cooled; heat generated in the motor cooling loop is transferred to a water cooling plate of a battery pack in the battery cooling loop, so that the temperature is transferred to the battery pack, and the battery pack is rapidly heated; and when the BMS monitors that the battery pack is at a suitable temperature, the VCU controls the reversing valve to be in a closed state, and the motor cooling loop and the battery cooling loop are independently cooled. The service life of the battery can be prolonged, the battery can rapidly work at the optimum temperature, the charging and discharging efficiency of the battery is improved, and the actual endurance mileage of the vehicle is increased.

    本发明公开了一种电动客车电池组加热控制系统和方法,当汽车处于非电池适宜的环境温度启动时,BMS监测后通过CAN网络给VCU发送信号,从而使VCU通过CAN网络控制换向阀打开,电机冷却回路与电池冷却回路相连通,使电机冷却回路中产生的热量来传递给电池冷却回路中电池组的水冷板,使得温度传递至电池组,使电池组迅速升温;当BMS监测电池组处于适宜温度时,VCU控制换向阀处于关闭状态,电机冷却回路与电池冷却回路独立冷却。本发明能够提升电池的工作寿命,使电池迅速处于最适温度工作,提升电池的充放电效率,提高车辆的实际续航里程。


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    Title :

    Electric motor coach battery pack heating control system and method


    Additional title:

    一种电动客车电池组加热控制系统和方法


    Contributors:
    YUAN RONG (author) / LI SHOUREN (author) / ZHANG TAO (author) / LIU SHENGXIANG (author) / DING GUOCHAO (author) / XIE CHAO (author) / YANG JIALONG (author)

    Publication date :

    2022-07-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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