To provide a battery degradation diagnosis system with which, even when there are no chances of a periodic inspection such as a vehicle inspection, it is possible to periodically diagnose the degree of degradation of a battery that supplies electric power to a motor.SOLUTION: A battery degradation diagnosis system 20 comprises: a first battery 50 for supplying electric power to a motor 2 of a hybrid system 10; a second battery 80 for supplying electric power to a starter that starts an engine 1 of the hybrid system 10; and a control unit 150 for executing control to flow an electric current from one of the first battery 50 and the second battery 80 to the other of the first battery 50 and the second battery 80 while the startup sequence of the hybrid system 10 is in operation, and diagnosing the degree of degradation of the first battery 50 on the basis of a voltage change of the first battery 50 when the electric current flows.SELECTED DRAWING: Figure 1

    【課題】例えば車検等の定期検査の機会がない場合であっても、モータに電力を供給するバッテリの劣化度合いを定期的に診断することができるバッテリ劣化診断システムを提供すること。【解決手段】バッテリ劣化診断システム20は、ハイブリッドシステム10のモータ2に電力を供給する第1バッテリ50と、ハイブリッドシステム10のエンジン1を始動する始動装置に電力を供給する第2バッテリ80と、ハイブリッドシステム10の始動シーケンスの作動中に、第1バッテリ50および第2バッテリ80のいずれか一方から第1バッテリ50および第2バッテリ80のいずれか他方へ向かって電流を流す制御を実行し、電流が流れたときの第1バッテリ50の電圧変動に基づいて第1バッテリ50の劣化度合いを診断する制御部150と、を備える。【選択図】図1


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    Title :

    BATTERY DEGRADATION DIAGNOSIS SYSTEM


    Additional title:

    バッテリ劣化診断システム


    Contributors:
    FUJII YASUO (author) / KOYAMA KAZUAKI (author) / KIMURA RYOTA (author)

    Publication date :

    2023-05-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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