PROBLEM TO BE SOLVED: To enable the start of an engine as far as possible even if a vehicle mounted with a low voltage battery and a high voltage battery is parted for a long period.SOLUTION: During the parking of a vehicle, the residual amount of a 12 V(low voltage) battery 11 is less than a 12 V battery residual amount regulation value, a battery switch relay 74 is switched to a drive (high voltage) battery 15 to supply power to all low voltage electric loads including an engine start electric load, and if the residual amount of the drive battery 15 is less than a drive battery residual amount regulation value, an engine start ensuring relay 76 is intercepted to shut off the low voltage electric loads except for the engine start electric load, and power is supplied from the drive battery 15 only to the engine start electric load.SELECTED DRAWING: Figure 2

    【課題】低電圧バッテリと高電圧バッテリを併載する車両を長期間駐車する場合であっても可及的にエンジンを始動可能とする。【解決手段】車両の駐車中、12V(低電圧)バッテリ11の残量が12Vバッテリ残量規定値未満になると、バッテリ切換リレー74を駆動(高電圧)バッテリ15に切換えてエンジン始動電気的負荷を含む全ての低電圧電気的負荷に電力を供給し、駆動バッテリ15の残量が駆動バッテリ残量規定値未満になると、エンジンスタート確保リレー76を切断してエンジン始動電気的負荷を除く低電圧電気的負荷を電力供給回路から遮断し、エンジン始動電気的負荷のみに駆動バッテリ15から電力を供給する。【選択図】図2


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    Title :

    VEHICULAR BATTERY CONTROL DEVICE


    Additional title:

    車両用バッテリ制御装置


    Contributors:

    Publication date :

    2018-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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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