Method and system for fuel system control

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United States of America Patent

PATENT NO 9027533
APP PUB NO 20140026866A1
SERIAL NO

13559455

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Importance

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Abstract

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Methods and systems are provided for controlling a fuel system in a hybrid vehicle. Before canister purging is stopped by closing a purge valve, a canister vent valve is closed to hold fuel tank vacuum. Then, during a subsequent canister purge, the purge valve is opened before opening the vent valve, allowing canister purge to initiate under fuel tank vacuum conditions.

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Patent Owner(s)

Patent OwnerAddress
FORD GLOBAL TECHNOLOGIES LLCONE AMERICAN ROAD FOURTH FLOOR DEARBORN MI 48126-2701

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Peters, Mark W Wolverine Lake, US 57 1110
Pifher, Kenneth L Holly, US 8 54

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