To provide a battery state determination device with improved accuracy in determining the connection terminal removal of a battery.SOLUTION: A battery state determination device determines the state of a connection terminal of a battery and comprises: a current detection part which detects current flowing into the battery or current flowing out from the battery; and a determination part which determines that the connection terminal of the battery is removed when the state where a fluctuation range of a current detected by the current detection part is less than a first threshold has been continued for one hour or the state where the current detected by the current detection part is less than a second threshold has been continued for two hours, or after three hours have passed since the battery charge is started, when current detected by the current detection part is reduced by equal to or more than a third threshold within four hours.SELECTED DRAWING: Figure 1

    【課題】バッテリーの接続端子外れを判定する精度を向上させたバッテリー状態判定装置などを提供する。【解決手段】バッテリーの接続端子の状態を判定するバッテリー状態判定装置であって、バッテリーへ流入する電流又はバッテリーから流出する電流を検出する電流検出部と、バッテリーの充電中に、電流検出部で検出される電流の変動幅が第1閾値未満である状態が第1時間継続した場合又は電流検出部で検出される電流が第2閾値未満である状態が第2時間継続した場合に、あるいはバッテリーの充電を開始してから第3時間が経過した後、電流検出部で検出される電流に第4時間以内で第3閾値以上の減少が生じた場合に、バッテリーの接続端子が外れていると判定する判定部と、を備える。【選択図】図1


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    Title :

    BATTERY STATE DETERMINATION DEVICE, METHOD, PROGRAM AND VEHICLE


    Additional title:

    バッテリー状態判定装置、方法、プログラム、及び車両


    Contributors:

    Publication date :

    2021-12-13


    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 / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen