A hybrid vehicle control unit (HV-ECU) sets a sub-battery voltage during an engine non-operation time to be lower than a sub-battery voltage during the normal time, which decreases a charge amount to the sub-battery relative to an amount during the normal time. The HV-ECU sets the sub-battery voltage during an engine operation time to be higher than the sub-battery voltage during the engine non-operation time, which increases the charge amount to the sub-battery relative to an amount during the engine non-operation time. An SOC control according to the above-described scheme prevents an SOC decrease of the sub-battery SOC in comparison to the conventional SOC control scheme, thereby preventing charging of the sub-battery when the main battery SOC is lower than a certain threshold. Therefore, a run-down of the sub-battery is prevented.


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    Titel :

    HYBRID VEHICLE CONTROL UNIT


    Beteiligte:
    ITOH YUTARO (Autor:in) / IKEMOTO NORIAKI (Autor:in)

    Erscheinungsdatum :

    16.07.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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