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 plurality of reference charging maps; a sensing unit for detecting a voltage, a current, and a temperature of the battery; and a control unit for determining an estimated SOC value of the battery. Each reference charge map includes first to M-th reference current values associated with the first to M-th SOC sections and first to M-th reference power profiles. The control unit obtains an Mth reference power curve and an Mth reference current value associated with an Mth SOC section to which the estimated SOC value belongs from a reference charge map associated with a temperature section to which the temperature detection value of the battery belongs. The control unit determines a time required for the SOC of the battery to reach an end point of the m-th SOC section according to a result of comparing the maximum output power of the charger with the m-th reference power curve, based on a difference between the end point of the m-th SOC section and the estimated SOC value, and at least one of the m-th reference current value, the maximum output power, and the m-th reference power curve.

    一种电池管理系统、电池组、电动车辆及电池充电时间预测方法。电池管理系统包括:存储器,其用于存储多个参考充电图;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,其用于确定电池的估计SOC值。每个参考充电图包括与第一至第M SOC区段相关联的第一至第M参考电流值以及第一至第M参考功率曲线。控制单元从与电池的温度检测值所属的温度区段相关联的参考充电图中获得与估计SOC值所属的第M SOC区段相关联的第M参考功率曲线和第M参考电流值。控制单元基于第m SOC区段的结束点与估计SOC值的差,以及第m参考电流值、最大输出功率和第m参考功率曲线中的至少一个,根据充电器的最大输出功率与第m参考功率曲线比较的结果,确定电池的SOC达到第m SOC区段的结束点所需的时间。


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    Titel :

    Battery management system, battery pack, electric vehicle, and battery charging time prediction method


    Weitere Titelangaben:

    电池管理系统、电池组、电动车辆及电池充电时间预测方法


    Beteiligte:
    KIM JAEGU (Autor:in)

    Erscheinungsdatum :

    18.06.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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