The invention provides a battery equalization method and an equalization device, a battery comprises a replacement cell and at least one main loop cell, the method comprises the following steps: 1, determining whether the battery satisfies a quasi-static calibration condition according to a current state of the battery; 2, if the battery meets the quasi-static calibration condition, SOC correction is carried out on the main loop battery cell and/or the replacement battery cell according to the voltage of the main loop battery cell, the voltage of the replacement battery cell and quasi-static voltage data; 3, according to the corresponding relation between the SOC value of the main loop battery cell and the SOC value of the replacement battery cell, balance adjustment is conducted on the main loop battery cell or the replacement battery cell. According to the method, the self-discharge detection accuracy and the equalization efficiency are improved, and the accuracy of the mapping relation between the charge states of the replacement cells and the charge states of the main loop cells is ensured.
本发明提供了一种电池均衡方法以及均衡装置,所述电池包括替换电芯以及至少一个主回路电芯,步骤1:根据所述电池的电流状态判断所述电池是否满足准静态校准条件;步骤2:若所述电池满足准静态校准条件,则根据所述主回路电芯的电压、所述替换电芯的电压以及准静态电压数据,对所述主回路电芯和/或所述替换电芯进行SOC修正;步骤3:根据主回路电芯SOC的值与替换电芯SOC值之间的对应关系,对所述主回路电芯或所述替换电芯进行均衡调整。本发明提高了自放电检测准确度和均衡效率,确保了替换电芯和主回路电芯荷电状态间映射关系的准确性。
Battery equalization method and equalization device
一种电池均衡方法以及均衡装置
2023-09-29
Patent
Electronic Resource
Chinese
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 / 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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