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:
Feb. 12, 2013
Filed:
Jan. 23, 2012
Douglas Raymond Martin, Canton, MI (US);
Ann Irene Sipes, Milan, MI (US);
Robert Roy Jentz, Westland, MI (US);
Aed Mohammad Dudar, Canton, MI (US);
Mark W. Peters, Wolverine Lake, MI (US);
Guopeng HU, Northville, MI (US);
Douglas Raymond Martin, Canton, MI (US);
Ann Irene Sipes, Milan, MI (US);
Robert Roy Jentz, Westland, MI (US);
Aed Mohammad Dudar, Canton, MI (US);
Mark W. Peters, Wolverine Lake, MI (US);
Guopeng Hu, Northville, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for testing a vapor purge system (VPS) for an internal combustion engine, and a hybrid vehicle having the VPS include a controller for closing a first valve coupled between a carbon canister of the VPS and the ambient environment, motoring the engine to pull a vacuum on the VPS, closing a second valve coupled between the carbon canister and the engine, and monitoring pressure in the VPS. The VPS has a carbon canister coupled to the engine via a first valve and coupled to atmosphere via a second valve, and a pressure transducer.