The invention relates to a power battery direct-current and alternating-current superposition excitation heating method. According to the method, alternating-current excitation voltage, current amplitude and frequency are automatically adjusted on the premise of ensuring the health state of the battery so that the power battery is always in a peak safety current/voltage range, and the safety and the temperature rise rate of the battery are ensured. The problems that in overvoltage is likely to happen and the heating rate is low when alternating current is applied to the power battery at a highSOC section a low-temperature environment are solved. The invention also relates to a battery management system, a computer readable medium and a vehicle.

    本发明涉及一种动力电池直流和交流叠加激励加热方法,该方法在保证电池健康状态的前提下,自动调节交流激励电压、电流幅值和频率,使动力电池始终处于峰值安全电流/电压范围,以确保电池安全和温升速率。解决了低温环境下,动力电池在高SOC段施加交流电时易超压且加热速率慢等问题。本发明还涉及电池管理系统、计算机可读介质和车辆。


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    Title :

    Power battery direct-current and alternating-current superposition excitation heating method


    Additional title:

    一种动力电池直流和交流叠加激励加热方法


    Contributors:
    XIONG RUI (author) / GUO SHANSHAN (author) / SUN FENGCHUN (author)

    Publication date :

    2020-04-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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