An auxiliary battery charging apparatus 1 is used for charging an auxiliary battery 3 from a main battery 4. The main battery has at least a first module 5-1 including a plurality of first cells 6-1. The charging apparatus has an intermediate storage device 13 (e.g. a transformer or capacitor) for connection to the auxiliary battery. A first switch unit 10 selectively connects one or more of the first cells to the intermediate storage device. A charging control unit 9 receives control signal (BAL1) to identify one or more of the first cells having a relatively low depth-of-discharge. The control unit outputs a control signal (SW1) to control the first switch unit so as to connect the identified cells to the intermediate storage device and thus charge the auxiliary battery. The auxiliary battery charging apparatus is used in an electric vehicle (e.g. EV, HEV, PHEV, BEV).


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    Titel :

    Auxiliary battery charging apparatus and method


    Beteiligte:
    MARK TUCKER (Autor:in) / JEREMY GREENWOOD (Autor:in)

    Erscheinungsdatum :

    30.11.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    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



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