The present invention relates to an electric vehicle and a charging control method for an auxiliary battery of the electric vehicle. According to the present invention, the electric vehicle comprises: a high-voltage battery which drives the electric vehicle; a plurality of electric field loads; the auxiliary battery which supplies driving power to the plurality of electric field loads; a first voltage detection unit which detects an output voltage of an auxiliary battery side; a converter which performs a PWM switching to convert the voltage of the high-voltage battery into a voltage required in the electric field loads; a plurality of relays; a power relay assembly (PRA) which is switched to supply the energy of the high-voltage battery to the converter according to whether or not the plurality of relays are in operation; and a vehicle control module (VCM) which controls the driving of the power relay assembly, wherein the converter includes a converter control unit, which sends a driving instruction signal requesting the vehicle control module to drive the power relay assembly depending on a magnitude change of the output voltage of the auxiliary battery side. Accordingly, discharging of the auxiliary battery in a starting-off state is prevented, which makes it possible to stably operate the electric vehicle system.


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    Titel :

    Electric vehicle and charging control method for auxiliary battery thereof


    Beteiligte:
    OH WON JIN (Autor:in) / KIM SUN YONG (Autor:in)

    Erscheinungsdatum :

    2015-11-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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