VEHICLE POWER SUPPLY APPARATUS AND VEHICLE POWER REGENERATION SYSTEM

A vehicle power supply apparatus includes: a switching element; a DC-DC converter; and a control unit. During an idling stop, the control unit turns on the switching element, and controls the DC-DC converter to discharge electricity from an electricity storage unit to supply electric power to loads,...

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1. Verfasser: OKANIWA MASAKAZU
Format: Patent
Sprache:eng
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Zusammenfassung:A vehicle power supply apparatus includes: a switching element; a DC-DC converter; and a control unit. During an idling stop, the control unit turns on the switching element, and controls the DC-DC converter to discharge electricity from an electricity storage unit to supply electric power to loads, and when the voltage of the electricity storage unit decreases to a predetermined value, the control unit stops discharging to hold electric power of the electricity storage unit, continuously maintains the switching element ON to supply electric power to the loads, and transmits a signal indicating that the idling stop can be continuously maintained. When the idling stop ends and an engine is re-started, the control unit turns off the switching element, and controls the DC-DC converter to discharge electricity from the electricity storage unit to supply remaining electric power of the electricity storage unit to a second load.