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    THERMAL MANAGEMENT METHOD FOR BATTERY PACK
    1.
    发明公开
    THERMAL MANAGEMENT METHOD FOR BATTERY PACK 审中-公开

    公开(公告)号：EP3919320A1

    公开(公告)日：2021-12-08

    申请号：EP20850104.9

    申请日：2020-07-23

    申请人： Contemporary Amperex Technology Co., Limited

    发明人： WU, Xingyuan ,  LI, Yanru ,  SONG, Yurui

    IPC分类号： B60L58/24 ,  B60L58/27 ,  B60L58/26

    摘要： The present application discloses a thermal management method for a battery pack. The method includes: under a condition that an electric vehicle is in a stationary state, obtaining a power-on time of the battery pack in the electric vehicle; under a condition of determining that the battery pack has a thermal management demand, determining a target temperature of the battery pack according to a connection state of a charging interface of the electric vehicle and a charging device; determining a thermal management starting time of the battery pack based on the target temperature of the battery pack and the power-on time; and under a condition that the thermal management starting time arrives, performing thermal management on the battery pack so that a temperature of the battery pack reaches the target temperature before the power-on time arrives. The thermal management method for the battery pack provided according to the present application can increase the driving mileage of the battery pack.

    BATTERY HEATING SYSTEM
    3.
    发明公开
    BATTERY HEATING SYSTEM 审中-公开

    公开(公告)号：EP3793017A1

    公开(公告)日：2021-03-17

    申请号：EP19902895.2

    申请日：2019-01-22

    申请人： Contemporary Amperex Technology Co., Limited

    发明人： ZUO, Xiyang ,  DAN, Zhimin ,  ZHANG, Wei ,  HOU, Yizhen ,  LI, Guowei ,  WU, Xingyuan ,  LI, Yanru

    IPC分类号： H01M10/60

    摘要： The disclosure provides a battery heating system, which relates to the field of battery power. The battery heating system includes a main positive switch, a main negative switch, an inverter, a motor, and a battery management module; the inverter includes a first-phase bridge arm, a second-phase bridge arm and a third-phase bridge arm connected in parallel, each of a upper bridge arm and a lower bridge arm is provided with a switch module, the switch module is connected in parallel with a buffer module, and the buffer module is provided for protecting the switch module; a motor controller in the inverter is provided for providing driving signals to the switch module of a target upper bridge arm and the switch module of a target lower bridge arm to control the switch module of the upper bridge arm of any bridge arm among the three phases of bridge arms and the switch module of the lower bridge arm of at least one bridge arm among the bridge arms except the bridge arm where the switch module of the target upper bridge arm is located to be periodically turned on and off. With the technical solution of the disclosure, heating efficiency of the battery pack can be improved and safety of the battery heating system can be enhanced.