Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
William Euliss0
Aed Dudar0
Christopher Kragh0
Daniel Gabor0
James Michael Kerns0
Michael Igor Kluzner0
Patrick Sullivan0
Robert Roy Jentz0
...
Date of Patent
November 15, 2011
0Patent Application Number
127907920
Date Filed
May 28, 2010
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A method and system for fuel vapor control in a hybrid vehicle (HEV). The HEV fuel vapor recovery system includes a fuel tank isolation valve, which is normally closed to isolate storage of refueling from storage of diurnal vapors. The method for fuel vapor control includes selectively actuating the fuel tank isolation valve during interrelated routines for refueling, fuel vapor purging, and emission system leak detection diagnostics to improve regulation of pressure and vacuum the HEV fuel vapor recovery system.
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