The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2013
Filed:
May. 28, 2010
Russell Randall Pearce, Ann Arbor, MI (US);
Scott Bohr, Plymouth, MI (US);
Christopher Kragh, Commerce Township, MI (US);
Timothy Debastos, Royal Oak, MI (US);
Patrick Sullivan, Plymouth, MI (US);
James Michael Kerns, Trenton, MI (US);
Chad Michael Olson, Plymouth, MI (US);
Russell Randall Pearce, Ann Arbor, MI (US);
Scott Bohr, Plymouth, MI (US);
Christopher Kragh, Commerce Township, MI (US);
Timothy DeBastos, Royal Oak, MI (US);
Patrick Sullivan, Plymouth, MI (US);
James Michael Kerns, Trenton, MI (US);
Chad Michael Olson, Plymouth, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
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.