Motor vehicles – Power – Electric
Patent
1997-07-22
2000-12-12
Culbreth, Eric
Motor vehicles
Power
Electric
180 651, 180 658, B60K 1600
Patent
active
061585378
ABSTRACT:
A power supply system 10 with a stack of fuel cells 20 and a storage battery 30 includes a remaining charge monitor 46 for measuring the remaining charge of the storage battery 30. The remaining charge monitor 46 detects the remaining charge of the storage battery 30 at the time of stopping operation of the power supply system 10. In case that the remaining charge of the storage battery 30 is not greater than a predetermined level, the fuel cells 20 continuously charge the storage battery 30 until the remaining charge reaches the predetermined level. The power supply system 10 is stopped after the charging operation of the storage battery 30 has been accomplished. At a next start of the power supply system, the storage battery 30 functions as a primary power source to supply electric power to a loading until the warm-up of the fuel cells 20 is completed.
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Culbreth Eric
McClellan James S.
Toyota Jidosha & Kabushiki Kaisha
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