The invention provides a battery management system, a battery pack, an electric vehicle, and a battery charging time prediction method. The battery management system includes: a memory for storing a first charging reference map in which a total of M * N charging rates are recorded; a sensing unit for detecting a voltage, a current, and a temperature of the battery; and a control unit for determining an SOC estimation value of the battery. The control unit determines an m-th charging rate associated with an m-th SOC section to which the SOC estimation value belongs and a temperature section to which the temperature detection value belongs, from a first charging reference map. The control unit determines a predicted charging time value in the m-th SOC section based on the m-th charging rate and an SOC difference between the SOC estimation value and an end point of the m-th SOC section.
提供了一种电池管理系统、电池组、电动车辆以及电池充电时间预测方法。该电池管理系统包括:存储器,其用于存储第一充电参考图,在第一充电参考图中记录总共M×N个充电速率;感测单元,其用于检测电池的电压、电流和温度;以及控制单元,其用于确定电池的SOC估计值。控制单元根据第一充电参考图确定与SOC估计值所属的第m个SOC区段和温度检测值所属的温度区段相关联的第m个充电速率。控制单元基于第m个充电速率以及SOC估计值与第m个SOC区段的结束点之间的SOC差值来确定在第m个SOC区段中的预测充电时间值。
Battery management system, battery pack, electric vehicle, and battery charging time prediction method
电池管理系统、电池组、电动车辆和电池充电时间预测方法
2024-05-31
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 / 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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