To provide a technique which can improve estimation accuracy of a full charge capacity of a power storage device.SOLUTION: A full charge capacity estimation system estimating a full charge capacity of an on-vehicle power storage device executes discharge processing where the power storage device is discharged till voltage of the power storage device is a prescribed voltage or less, and executes first stand-by processing after completing the discharge processing. The full charge capacity estimation system acquires a first voltage after completing the first stand-by processing, and executes charging processing where the power storage device is charged. The full charge capacity estimation system acquires an integrated value of charging current during the charging processing and executes second stand-by processing after completing the charging processing. The full charge capacity estimation system acquires a second voltage after completing the second stand-by processing. The full charge capacity estimation system uses the first voltage, the second voltage, and the integrated value to estimate the full charge capacity of the power storage device.SELECTED DRAWING: Figure 2

    【課題】蓄電装置の満充電容量の推定精度を向上させることができる技術を提供する。【解決手段】車両に搭載された蓄電装置の満充電容量を推定する満充電容量推定システムは、蓄電装置の電圧が所定電圧以下となるまで蓄電装置の電力を放電する放電処理を実行し、放電処理が終了した後に、第1待機処理を実行する。満充電容量推定システムは、第1待機処理が終了した後に、第1電圧を取得し、蓄電装置を充電する充電処理を実行する。満充電容量推定システムは、充電処理中における充電電流の積算値を取得し、充電処理が終了した後に、第2待機処理を実行する。満充電容量推定システムは、第2待機処理が終了した後に、第2電圧を取得する。満充電容量推定システムは、第1電圧、第2電圧、及び、積算値を利用して、蓄電装置の満充電容量を推定する。【選択図】図2


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    Title :

    FULL CHARGE CAPACITY ESTIMATION SYSTEM


    Additional title:

    満充電容量推定システム


    Contributors:
    WADA YOSUKE (author)

    Publication date :

    2024-12-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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 / 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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