An electrical storage device 50 is provided with: external terminals 51, 52; an electrical storage element 60; a switch 53 positioned in a current route 55P from the electrical storage element 60 to the external terminal 51; a measuring unit 150 for measuring current and voltage of the electrical storage element 60; and a managing unit 130. The measuring unit 150 and the managing unit 130 receive electric power supply from the electrical storage element 60. A lowest operation voltage V1 of the managing unit 130 is lower than a lowest operation voltage V2 of the measuring unit 150. The managing unit 130, if the voltage of the electrical storage element 60 is lower than a threshold value voltage V0 of more than or equal to the lowest operation voltage V2 of the measuring unit 150, controls the switch 53 to cut off external discharge via the external terminal 52, and, on the basis of an elapsed time from an arbitrary time point t1 in a first period in which the voltage of the electrical storage element 60 decreases from the threshold value voltage V0 to the lowest operation voltage V2 of the measuring unit 150, estimates a capacity of the electrical storage element 60 after the arbitrary time point t1.
蓄电装置(50)具备:外部端子(51、52);蓄电元件(60);开关(53),位于从所述蓄电元件(60)向外部端子(51)的电流路径(55P);测量部(150),测量所述蓄电元件(60)的电流及电压;管理部(130)。所述测量部(150)和所述管理部(130)从所述蓄电元件(60)接受电力的供给。所述管理部(130)的最低动作电压(V1)低于所述测量部(150)的最低动作电压(V2)。在所述蓄电元件(60)的电压低于所述测量部(150)的最低动作电压(V2)以上的阈值电压(V0)的情况下,所述管理部(130)通过控制所述开关(53)来切断通过所述外部端子(52)的向外部的放电,基于从所述蓄电元件(60)的电压自所述阈值电压(V0)下降到所述测量部(150)的最低动作电压(V2)的第1期间的任意时间点(t1)起的经过时间,估计所述蓄电元件(60)的所述任意时间点(t1)之后的容量。
ELECTRICAL STORAGE DEVICE, METHOD FOR ESTIMATING CAPACITY OF ELECTRICAL STORAGE ELEMENT, AND PROGRAM FOR ESTIMATING CAPACITY OF ELECTRICAL STORAGE ELEMENT
蓄电装置、蓄电元件的容量估计方法、蓄电元件的容量估计程序
2021-10-29
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 |
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