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:
Sep. 23, 2008
Filed:
May. 31, 2006
Philip Husak, Southgate, MI (US);
Daniel Meyer, Dearborn, MI (US);
Venkateswaran Nallaperumal, Farmington Hills, MI (US);
Michael J. Cullen, Northville, MI (US);
Paul Roth, South Lyon, MI (US);
Michael Smokovitz, Canton, MI (US);
Philip Husak, Southgate, MI (US);
Daniel Meyer, Dearborn, MI (US);
Venkateswaran Nallaperumal, Farmington Hills, MI (US);
Michael J. Cullen, Northville, MI (US);
Paul Roth, South Lyon, MI (US);
Michael Smokovitz, Canton, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for controlling fueling of an engine, the method comprising during an engine cold start and before the engine is warmed to a predetermined level, transitioning from open-loop fueling to closed-loop fueling, where during closed-loop fueling feedback from an exhaust gas oxygen sensor is utilized and where said closed-loop fueling generates a cycling of delivered fuel in maintaining exhaust air-fuel ratio at a desired level; and providing a fueling adjustment to a subsequent engine start in response to fueling information, said fueling information obtained over at least a complete cycle of closed-loop fueling following said transition from open-loop fueling.