The invention discloses a power battery auxiliary system, a control method thereof and an electric vehicle. The power battery auxiliary system comprises a vehicle control unit, a battery management system controller, an energy auxiliary system, a power battery and a driving motor. The vehicle control unit is connected with the battery management system controller, the energy auxiliary system and the driving motor, the battery management system controller is connected with the power battery, and the energy auxiliary system is connected with the power battery and the driving motor; the vehicle control unit is used for controlling the power battery auxiliary system; the battery management system controller is used for controlling the power battery; the energy auxiliary system is used for storing energy when the energy storage amount is smaller than a preset energy release threshold value and releasing energy when the energy storage amount is larger than the preset energy release threshold value; the power battery is used for storing and releasing energy; the driving motor is used for driving the automobile to run. The environmental adaptability, the charge-discharge rate and the whole vehicle dynamic property of an electric vehicle power system can be improved, the running state in a special scene is improved, and the vehicle energy consumption is reduced.

    本发明公开了一种动力电池辅助系统及其控制方法、电动汽车,包括整车控制器、电池管理系统控制器、能量辅助系统、动力电池和驱动电机;整车控制器与电池管理系统控制器、能量辅助系统和驱动电机相连,电池管理系统控制器与动力电池相连,能量辅助系统与动力电池、驱动电机相连;整车控制器用于控制动力电池辅助系统;电池管理系统控制器用于控制动力电池;能量辅助系统用于在能量存储量小于预设的能量释放阈值时存储能量,以及在能量存储量大于预设的能量释放阈值时释放能量;动力电池用于存储和释放能量;驱动电机用于驱动汽车行驶。可以提高电动汽车动力系统的环境适应性、充放电倍率和整车动力性,改善在特殊场景下的运行状态,降低车辆能耗。


    Access

    Download


    Export, share and cite



    Title :

    Power battery auxiliary system, control method thereof and electric automobile


    Additional title:

    一种动力电池辅助系统及其控制方法、电动汽车


    Contributors:
    LIANG CHEN (author) / HE QI (author) / PENG QUSHUN (author)

    Publication date :

    2024-09-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Electric automobile auxiliary braking system control method

    HE ZONGFEN / LI XIANG / MA QIUXIANG et al. | European Patent Office | 2020

    Free access

    Electric vehicle power system without auxiliary battery and control method thereof

    KIM YEON WOO / CHO GYU BAEK / KIM SE HWAN et al. | European Patent Office | 2024

    Free access

    Power supply system of electric automobile, electric automobile and power battery control method

    LI QI / WANG DONGBIN / GUO ZHILONG et al. | European Patent Office | 2024

    Free access

    Automatic power-off auxiliary control method for electric automobile

    WANG PENGXIANG / REN KE / WANG CHENLIANG et al. | European Patent Office | 2024

    Free access

    New energy automobile auxiliary power control system and control method thereof

    MAO ZHENGRONG | European Patent Office | 2022

    Free access