The invention discloses a low-voltage lithium battery charging method, a medium and a product, and relates to the technical field of electric vehicle power management, and the method comprises the steps: detecting a charging signal outputted by a low-voltage battery sensor when the voltage of a low-voltage battery is lower than a preset first voltage threshold value or the electric quantity of the low-voltage battery is lower than a preset first electric quantity threshold value; when the electricity supplementing signal is detected, detecting whether the electric quantity of the power battery is higher than a preset second electric quantity threshold value or not; and when the electric quantity state of the power battery is higher than the preset second electric quantity threshold value, controlling a double DCDC circuit to charge the low-voltage battery. The technical problem that the double-DCDC circuit of the electric vehicle cannot timely charge the low-voltage battery is solved.

    本申请公开了一种低压锂电池补电方法、介质及产品,涉及电动汽车电源管理技术领域,该方法包括:检测低压电池传感器在低压电池电压低于预设第一电压阈值,或低压电池电量低于预设第一电量阈值时,输出的补电信号;当检测到所述补电信号时,检测动力电池电量是否高于预设第二电量阈值;当所述动力电池电量状态高于所述预设第二电量阈值时,控制双DCDC电路对所述低压电池进行补电。解决了电动汽车双DCDC电路无法及时对低压电池进行补电的技术问题。


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    Title :

    Low-voltage lithium battery charging method, medium and product


    Additional title:

    低压锂电池补电方法、介质及产品


    Contributors:
    FAN ZHIRONG (author) / CHEN JING (author) / XIA YU (author) / LIU NING (author) / LI MIN (author)

    Publication date :

    2024-11-08


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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