The invention provides a charging and discharging control method and device of a high-voltage battery of a hybrid electric vehicle. The method comprises the following steps: determining a state-of-charge value and an expected state-of-charge value of the high-voltage battery of the hybrid electric vehicle; controlling a charging and discharging mode of the high-voltage battery based on the state-of-charge value of the high-voltage battery or a difference between the state-of-charge value of the high-voltage battery and the expected state-of-charge value; and controlling a charging current or adischarging current of the high-voltage battery based on the charging and discharging mode of the high-voltage battery and vehicle parameters. According to the technical scheme, the charging and discharging mode of the high-voltage battery is controlled on the basis of the parameters of the high-voltage battery of the hybrid electric vehicle, different charging and discharging strategies are adopted for different charging and discharging modes, staged accurate control is achieved, economical efficiency is better improved, an application range is wide, and the method and the device can be applied to hybrid electric vehicles of various frameworks.

    本公开提供混合动力汽车高压电池的充放电控制方法及其装置。所述方法包括:确定混合动力汽车的高压电池的荷电状态值和期望荷电状态值;基于高压电池的荷电状态值、或者所述高压电池的荷电状态值与所述期望荷电状态值的差值,控制高压电池的充放电模式;基于所述高压电池的充放电模式及车辆参数,控制高压电池的充电电流或放电电流。本公开实施例的技术方案,基于混合动力汽车的高压电池的参数,控制高压电池的充放电模式,不同充放电模式采用不同的充放电策略,实现分阶段的精确控制,更好的提高经济性,且适用范围广泛,可以应用于各种架构的混合动力汽车。


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    Title :

    Charging and discharging control method and device of high-voltage battery


    Additional title:

    高压电池的充放电控制方法及其装置


    Contributors:
    QIAN CHAO (author) / ZHANG NAN (author) / LI LEI (author) / LIU BAO (author) / SONG DANDAN (author) / SUN ZHAOLUE (author) / SONG HAIJUN (author)

    Publication date :

    2020-08-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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