Disclosed is a battery management apparatus, which includes: a precharging unit having a plurality of switches, the precharging unit being connected to the first main relay in parallel and connected between the second main relay and the second charge/discharge terminal; a control unit configured to control the plurality of switches which causes an output voltage of the battery module to be converted into an AC voltage and applied to the first main relay or the second main relay; and a diagnosing unit configured to diagnose a failure of the first main relay based on a first both-end voltage value of the first main relay to which the AC voltage is applied or to diagnose a failure of the second main relay based on a second both-end voltage value of the second main relay to which the AC voltage is applied.


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    Title :

    Battery Management Apparatus, and Battery Pack and Automobile Including Same


    Contributors:
    SONG HYEON-JIN (author) / YU SEON-UK (author) / CHOI YANG-LIM (author)

    Publication date :

    2019-12-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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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