During use of a secondary battery, a concentration change ratio estimating unit (210) estimates a ratio of change (B) in electrolytic solution concentration based on a charging/discharging current (Ib). According to the estimated ratio of change (B), a concentration estimated value calculating unit (230) sequentially calculates an electrolytic solution concentration estimated value (B#) during the use of the secondary battery. Based on the estimated electrolytic solution concentration estimated value (B#), a determining unit (250) determines whether or not the electrolytic solution concentration is within a normal range. When the electrolytic solution concentration is outside the normal range, a charging/discharging condition modifying unit (260) modifies a charging/discharging condition of the secondary battery to bring the electrolytic solution concentration back to the normal range, thus avoiding a tendency of overcharge or a tendency of overdischarge.


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    Title :

    CONTROL SYSTEM FOR SECONDARY BATTERY AND METHOD FOR CONTROLLING SECONDARY BATTERY


    Additional title:

    STEUERSYSTEM FÜR SEKUNDÄRBATTERIE, ELEKTROFAHRZEUG MIT DEM STEUERSYSTEM UND STEUERVERFAHREN FÜR SEKUNDÄRBATTERIE
    SYSTÈME DE COMMANDE DE BATTERIE SECONDAIRE, VÉHICULE ÉLECTRIQUE INTÉGRANT LE SYSTÈME DE COMMANDE ET PROCÉDÉ DE COMMANDE DE BATTERIE SECONDAIRE


    Contributors:

    Publication date :

    2015-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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