The invention discloses an undervoltage protection control method for an automobile low-voltage storage battery, which comprises the following steps of: S1) flameout an engine, judging whether an ignition signal is powered off or not, and if not, acquiring a charge quantity state and an available charge quantity of the storage battery and executing an energy grading turn-off step until the ignition signal is powered off; s2) when the ignition signal is powered off but the bus does not sleep, acquiring a charge quantity state, an available charge quantity and a storage battery state, and judging the storage battery state according to a storage battery state judgment step; and S3) after the bus is dormant, a static current value monitoring program is executed, and the static current value monitoring program is used for controlling on and off of a power supply switch of the storage battery according to the battery static current value, the duration time of the static current value and the charge quantity state. The invention further discloses a low-voltage protection device for the automobile low-voltage storage battery.

    本发明揭示了一种汽车低压蓄电池亏电保护控制方法,包括以下步骤:S1)发动机熄火,判断点火信号是否下电,若没有下电,则获取蓄电池的电荷量状态及可用电荷量并执行能量分级关断步骤直至所述点火信号下电;S2)点火信号下电但总线未休眠时,获取电荷量状态、可用电荷量及蓄电池状态,蓄电池状态根据蓄电池状态判断步骤进行判断;S3)总线休眠后,执行静态电流值监控程序,静态电流值监控程序用以根据电池静态电流值、静态电流值的持续时间及电荷量状态控制蓄电池供电开关的开合。本发明还揭示了一种汽车低压蓄电池亏电保护装置。


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    Title :

    Automobile low-voltage storage battery power shortage protection control method and device


    Additional title:

    一种汽车低压蓄电池亏电保护控制方法及装置


    Contributors:
    LI JUN (author) / YU ZHAOFENG (author) / DING XUELIN (author) / ZHANG JUANPING (author)

    Publication date :

    2022-12-09


    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 / 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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