The invention provides a power protection method for a power battery. The power protection method comprises the following steps: acquiring allowable power information of the power battery in an actual state of charge; the allowable power information at least comprises peak charging and discharging power and continuous charging and discharging power; when the actual power of the power battery exceeds the peak charging and discharging power, timing the operation time of the actual power, and switching the available effective power of the power battery to a preset power value after the operation time reaches a first preset time; wherein the preset power value is greater than the continuous charging and discharging power. Thus, through a reasonable power switching strategy, the smoothness of the power of the whole vehicle can be guaranteed, the driving jerking feeling caused by forced power reduction is avoided, and meanwhile the battery is protected against overcharge and overdischarge. The invention further discloses a power battery power protection device and a vehicle.

    本申请提供了一种动力电池功率保护方法,包括:获取动力电池在实际荷电状态下的允许功率信息;所述允许功率信息至少包括峰值充放电功率和持续充放电功率;在所述动力电池的实际功率超过所述峰值充放电功率的情况下,计时所述实际功率的运行时间,在所述运行时间达到第一预设时间后,将所述动力电池的可用有效功率切换为预设功率值;其中,所述预设功率值大于所述持续充放电功率。这样,通过合理的功率切换策略,能够保障整车动力平顺,避免强行降功率造成的驾驶顿挫感,同时保护电池不过充、过放。本申请还公开了一种动力电池功率保护装置及车辆。


    Access

    Download


    Export, share and cite



    Title :

    Power battery power protection method and device and vehicle


    Additional title:

    一种动力电池功率保护方法、装置及车辆


    Contributors:
    REN QIANG (author) / HU WENJIN (author) / CAO WEI (author) / DOU YASHENG (author) / WU ZHI (author)

    Publication date :

    2024-02-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



    Vehicle power battery side impact protection device

    WANG JIEXIONG / YANG NA / LIU TAO | European Patent Office | 2021

    Free access

    Protection method and device for vehicle power battery

    FENG JIANI / HUANG RONG / YUAN WENJING | European Patent Office | 2024

    Free access

    Power battery, maintenance protection device thereof and vehicle

    GUO TENGFEI / LIU XIU / LI YAN et al. | European Patent Office | 2020

    Free access

    Power battery protection method and device, vehicle and storage medium

    XU JIALIANG / LIANG GUIYOU / ZHU HAO et al. | European Patent Office | 2022

    Free access

    Power battery collision safety protection method and device, and vehicle

    ZHANG YEJUN / PENG SHENGZHENG / CHEN JUNTI | European Patent Office | 2021

    Free access