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. 27, 2003
Filed:
Jan. 11, 2002
Edward Ponagai, Dearborn Hts., MI (US);
Gary Lee Danhoff, Redford, MI (US);
Ghassan Hussini, Dearborn Hts., MI (US);
Ghassan K. Raad, Farmington Hills, MI (US);
Michael igor Kluzner, oak park, MI (US);
Raymond Henry Berger, Canton, MI (US);
Robert Joseph Jerger, Dexter, MI (US);
Ford Global Technologies, L.L.C., Dearborn, MI (US);
Abstract
A system and method for detecting an air leak within an exhaust system is provided. The method includes measuring an exhaust gas constituent in exhaust gases from the engine when the engine is operating in an idle operating mode. The method further includes determining whether the air leak is present in the exhaust system based on a measured exhaust gas constituent, a first air-fuel correction value, and a second air-fuel correction value.