The invention is suitable for the technical field of power supply, and provides a power management method and a vehicle auxiliary power supply. The method is applied to a vehicle auxiliary power supply. The vehicle auxiliary power supply comprises a battery management system and an auxiliary battery. The method comprises the steps that a battery management system collects bus voltage and bus current in real time; after the auxiliary battery and the vehicle-mounted lead-acid battery are started, the battery management system controls the charging states of the auxiliary battery and the vehicle-mounted lead-acid battery according to the magnitude of the bus voltage and the direction of the bus current; and the battery management system controls the discharge state of the auxiliary battery according to the magnitude of the bus voltage and/or the direction and magnitude of the bus current. According to the power supply management method provided by the invention, the overuse of the vehicle-mounted lead-acid battery can be avoided, the capacity attenuation speed of the vehicle-mounted lead-acid battery is slowed down, and the service life of the vehicle-mounted lead-acid battery is prolonged.

    本申请适用于电源供电技术领域,提供了一种电源管理方法及车辆辅助电源。该方法应用于车辆辅助电源,车辆辅助电源包括电池管理系统和辅助电池;该方法包括:电池管理系统实时采集母线电压和母线电流;在辅助电池和车载铅酸电池启动后,电池管理系统根据母线电压的大小和母线电流的方向,控制辅助电池和车载铅酸电池的充电状态;电池管理系统根据母线电压的大小,和/或,母线电流的方向和大小,控制辅助电池的放电状态。本申请提供的电源管理方法,能够避免车载铅酸电池过度使用,减缓车载铅酸电池的容量衰减速度,延长车载铅酸电池的使用寿命。


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    Title :

    Power management method and vehicle auxiliary power supply


    Additional title:

    电源管理方法及车辆辅助电源


    Contributors:
    WAN YAKUN (author) / JI LEI (author) / ZHENG CHAOYANG (author) / ZHAO ZHONGYUAN (author) / LIU SHUANGHE (author) / MA HAOTIAN (author) / ZHONG ZHAOPENG (author) / WU KUN (author) / SONG YUKE (author) / NIU QIYU (author)

    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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