The invention provides a voltage protection method and device of a battery. The method comprises the following steps: obtaining a test voltage value, a test current value and a current temperature value corresponding to each battery; obtaining an actual voltage value corresponding to each battery according to the test voltage value, the test current value and the current temperature value; determining a cut-off voltage value by using the current temperature value corresponding to each battery; and performing voltage protection according to the cut-off voltage value and the actual voltage value corresponding to each battery. According to the embodiment of the invention, the battery is corrected by using the test voltage value, the test current value and the current temperature value, the accurate actual voltage value corresponding to each battery is obtained, and the corresponding cut-off voltage is searched according to the current temperature value, so that the cut-off voltage value can be dynamically adjusted according to different temperatures; therefore, the electric quantity of the battery can be released as much as possible, and the utilization rate of the battery electric quantity is improved.

    本申请提供一种电池的电压保护方法及装置。方法包括:获得各电池分别对应的测试电压值、测试电流值、当前温度值;根据所述测试电压值、所述测试电流值和所述当前温度值获得各电池对应的实际电压值;利用各电池分别对应的当前温度值确定截止电压值;根据各电池对应的截止电压值和实际电压值进行电压保护。在申请实施例通过利用测试电压值、测试电流值和当前温度值对电池进行修正,获得各节电池对应的准确的实际电压值,并根据当前温度值查找对应的截止电压,能够根据不同的温度动态调整截止电压值,从而能够尽可能地使电池的电量得到释放,提高了电池电量的利用率。


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    Title :

    Voltage protection method and device of battery


    Additional title:

    电池的电压保护方法及装置


    Contributors:
    XING CHANG (author) / YANG CHUNLEI (author)

    Publication date :

    2021-08-03


    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



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