BATTERY MANAGEMENT SYSTEM FOR RESTRICTED IDLE VEHICLES
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United States of America Patent
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Issued Date -
Sep 26, 2013
app pub date -
Dec 3, 2010
filing date -
Dec 3, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A vehicle electrical power system includes a generator which generates power for application to loads and to chassis and batteries for storage. A starter motor for an engine is energized primarily from the battery. A contactor between the batteries has a closed state in which power can flow between the batteries and an open state which interrupts power flow between the batteries and from the generator to the cranking battery. A controller enables periodic stopping and starting of the engine is responsive to a battery state of charge for at least one of the batteries for operating the engine to maintain a minimum battery state of charge. The contactor may have a limited closed state in which power flow between the batteries is surge limited. Power flow is surge limited through the connector responsive to a voltage difference between the batteries.
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