To provide a remaining capacity setting device that can properly set the remaining capacity of a battery during constant voltage charging.SOLUTION: A remaining capacity setting device that detects a charging current of a battery during constant voltage charging of a battery and sets the remaining capacity of the battery includes a storage state determination unit that determines whether the battery is in a predetermined low storage state at the start of constant voltage charging, a first setting unit that calculates the charging power required until the charging current reaches a predetermined convergence value on the basis of change data of the charging current before the charging current reaches the predetermined convergence value after the start of constant voltage charging, and sets the initial value of the remaining capacity on the basis of the charging power when it is determined that the battery is not in the storage state, and a second setting unit that sets a predetermined value as the initial value of the remaining capacity when the charging current reaches the predetermined convergence value after the start of constant voltage charging when it is determined that the battery is in the low storage state.SELECTED DRAWING: Figure 2

    【課題】定電圧充電時において、バッテリの残存容量を適正に設定できる残存容量設定装置を提供すること。【解決手段】バッテリの定電圧充電中にバッテリの充電電流を検出してバッテリの残存容量を設定する残存容量設定装置であって、定電圧充電の開始時においてバッテリが所定の低蓄電状態であるか否かを判定する蓄電状態判定部と、バッテリが蓄電状態でないと判定された場合に、定電圧充電の開始後において前記充電電流が所定の収束値に到達する前に、充電電流の変化データに基づいて充電電流が収束値に到達するまでに要する充電電力を算出するとともに、その充電電力に基づいて残存容量の初期値を設定する第1設定部と、バッテリが低蓄電状態であると判定された場合に、定電圧充電の開始後において充電電流が所定の収束値に到達した時に、所定値を残存容量の初期値として設定する第2設定部と、を備える。【選択図】 図2


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    Title :

    REMAINING CAPACITY SETTING DEVICE


    Additional title:

    残存容量設定装置


    Contributors:

    Publication date :

    2021-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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