Hybrid vehicle fuel vapor management apparatus

Details Hybrid vehicle fuel vapor management apparatus Hybrid vehicle fuel vapor management apparatus

1993-12-27

1994-11-22

Tapolcai, William E.

Heating systems

Automatic control

Heat source is a reverse cycle refrigerating system or heat...

237 123C, B60H 104

Patent

active

053661516

ABSTRACT:
An apparatus is disclosed for heating the interior of a motor vehicle capable of being powered by electricity or a liquid fuel. A canister stores vapors released from a vehicle fuel tank, and a heater in communication with the canister burns the vapors stored therein to generate heated exhaust gases. Coolant is circulated between a heating coil where the coolant absorbs heat from the heated exhaust gases and a heater core where at least a portion of the heat absorbed by the coolant is transmitted to the interior of the vehicle. A system controller receives a first input indicating a demand for heat in the interior of the vehicle, a second input indicating the state of charge of an electrical storage battery, and a third input indicating a time interval since the canister was previously purged. The system controller signals an ignitor to begin combustion in the heater if the first input indicates a demand for heat, the second input indicates the state of charge of the battery is high, and the third input indicates a time interval greater than a predetermined amount.

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