PROBLEM TO BE SOLVED: To provide a voltage detector capable of measuring an OCV of a secondary batter at a timing other than an IGN OFF and suppressing deterioration of an estimation precisely of SOC, and a voltage detection method.SOLUTION: A voltage detector comprises a plurality of secondary batteries (13 and 14) which supplies an electric power to a load (15) comprised to a vehicle; a detection part (23) that detects an on/off state of an idling stop function of the vehicle; and a control part (24) that measures an OCV of the secondary battery (13). The plurality of secondary batteries (13 and 14) includes a first secondary battery (13) supplying the electric power to the load (15) while the idling stop function is in an on state, when both vehicles are shifted to the idling stop state. The control part (24) measures the OCV of the secondary battery (13) when the idling stop function is in an off state or the idling stop function is in the on state and it is determined that the idling stop function satisfies a predetermined condition.SELECTED DRAWING: Figure 1

    【課題】IGN OFF時以外のタイミングでも二次電池のOCVを測定でき、SOCの推定精度の低下を抑制可能な電圧検出装置及び電圧検出方法を提供する。【解決手段】車両に備わる負荷(15)に対して電力を供給する複数の二次電池(13、14)と、車両のアイドリングストップ機能のオンオフ状態を検知する検知部(23)と、二次電池(13)のOCVを測定する制御部(24)と、を備え、複数の二次電池(13、14)は、アイドリングストップ機能がオン状態の際に、前両がアイドリングストップ状態に移行した場合、負荷(15)に電力を供給する第1の二次電池(13)を含み、制御部(24)は、アイドリングストップ機能がオフ状態である場合、又は、アイドリングストップ機能がオン状態であり且つ所定条件を満たすと判定した場合、第1の二次電池(13)のOCVを測定する。【選択図】図1


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    Title :

    VOLTAGE DETECTOR AND VOLTAGE DETECTION METHOD


    Additional title:

    電圧検出装置及び電圧検出方法


    Contributors:

    Publication date :

    2018-06-21


    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



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