To provide a state detector, a state detection method and a state detection system, which can precisely estimate a deterioration state of a secondary battery.SOLUTION: In a state detector for detecting a state of a secondary battery mounted on a vehicle, a control part includes: measuring means for measuring a physical amount of the secondary battery and a use history of the secondary battery; discharge performance value calculation means for calculating a discharge performance value which correlates with discharge performance of the secondary battery from the physical amount of the secondary battery; storage means for storing the use history of the secondary battery and the discharge performance value; logarithm calculation means for calculating a logarithm of the use history of the secondary battery; and estimation means for estimating the deterioration state of the secondary battery on the basis of a relation between the logarithm calculated by the logarithm calculation means and the discharge performance value.SELECTED DRAWING: Figure 3

    【課題】二次電池の劣化の状態を精度良く推定が可能な状態検出装置、状態検出方法及び状態検出システムを提供する。【解決手段】車両に搭載された二次電池の状態を検出する状態検出装置であって、制御部は、二次電池の物理量と、二次電池の使用履歴とを測定する測定手段と、二次電池の物理量から二次電池の放電性能に相関する放電性能値を算出する放電性能値算出手段と、二次電池の使用履歴と電性能値を記憶する記憶手段と、二次電池の使用履歴の対数を算出する対数算出手段と、対数算出手段が算出した対数と、放電性能値の関係に基づいて二次電池の劣化の状態を推定する推定手段とを備える。【選択図】図3


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    Titel :

    STATE DETECTOR, STATE DETECTION METHOD AND STATE DETECTION SYSTEM


    Weitere Titelangaben:

    状態検出装置、状態検出方法及び状態検出システム


    Beteiligte:

    Erscheinungsdatum :

    2022-05-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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



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