To provide a vehicular power supply system which can prevent exhaustion of a main battery.SOLUTION: A vehicular power supply system comprises: a main battery; an auxiliary battery; a converter which is capable of performing bidirectional power conversion between the main battery and the auxiliary battery; and a controller which is configured to cause power to be supplied from the main battery to the auxiliary battery when a predetermined condition is satisfied. The controller is configured in such a manner that it determines whether or not the vehicular power supply system is in an off-state (step S1), and if the vehicular power supply system is in an off-state, further determines whether or not a remaining charge amount of the main battery is equal to or less than a predetermined value (step S2). If the remaining charge amount of the main battery is equal to or less than the predetermined value, it inhibits operation of an auxiliary machine (step S4).SELECTED DRAWING: Figure 2

    【課題】メインバッテリのバッテリ上がりを抑制することが可能な車両の電源システムを提供する。【解決手段】メインバッテリと補機バッテリと前記メインバッテリと前記補機バッテリとの間で双方向の電力変換を実行することが可能なコンバータとを備えた車両の電源システムにおいて、コントローラは、予め定められた所定の条件が成立する場合にメインバッテリから補機バッテリに電力を供給するように構成され、車両の電源システムがオフか否かを判断し(ステップS1)、車両の電源システムがオフの場合に、メインバッテリの充電残量が予め定められた所定値以下であるか否かを更に判断し(ステップS2)、メインバッテリの充電残量が前記所定値以下の場合に、前記補機の稼働を禁止するように構成されている(ステップS4)。【選択図】図2


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    Titel :

    VEHICULAR POWER SUPPLY SYSTEM


    Weitere Titelangaben:

    車両の電源システム


    Beteiligte:
    MIYASATO YOSHIAKI (Autor:in) / OTA TOKUJI (Autor:in)

    Erscheinungsdatum :

    19.03.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    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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