The invention provides a dual-power system of an electric vehicle and a control method thereof, the dual-power system comprises a first storage battery and a second storage battery, and the deep discharge capability of the first storage battery is greater than that of the second storage battery; the control method comprises the steps of judging whether the environment temperature of the first storage battery is smaller than a temperature threshold; if yes, the second storage battery supplies power to the vehicle load; and if not, a whole vehicle power mode is obtained, and the dual-power system is controlled to supply power to the vehicle load according to the charge states of the first storage battery and the second storage battery and the whole vehicle power mode. The dual-power-supply system and the control method provided by the invention are suitable for dual-power-supply energy management schemes with different voltage grades, charge-discharge performance and cycle service lives among storage batteries, and the comprehensive service life of the dual-power-supply system is prolonged, so that the driving experience of a user is improved.

    本发明提供一种电动汽车的双电源系统及其控制方法,双电源系统包括第一蓄电池和第二蓄电池,第一蓄电池的深放电能力大于第二蓄电池的深放电能力;控制方法包括:判断第一蓄电池的环境温度是否小于温度阈值;若是,由第二蓄电池为车辆负载进行供电;若否,获取整车电源模式,并根据第一蓄电池和第二蓄电池的荷电状态、整车电源模式控制双电源系统为车辆负载供电。本发明提供的双电源系统和控制方法,适用于蓄电池间电压等级、充放电性能和循环使用寿命不同的双电源能量管理方案,提高双电源系统的综合使用寿命,从而提高用户驾驶体验。


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    Titel :

    Dual-power system of electric automobile and control method of dual-power system


    Weitere Titelangaben:

    电动汽车的双电源系统及其控制方法


    Beteiligte:
    ZHAO YUNFEI (Autor:in) / ZHU DEKANG (Autor:in) / QI SHANWEI (Autor:in) / CHEN HUAMENG (Autor:in) / LIANG YIDAN (Autor:in)

    Erscheinungsdatum :

    2023-03-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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