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:
Nov. 11, 2003
Filed:
Jul. 30, 2002
Applicant:
Inventors:
Christopher Kirk Davey, Novi, MI (US);
David Robert Nader, Farmington Hills, MI (US);
Jeffrey Scott Hepburn, Dearborn, MI (US);
Michael Igor Kluzner, Oak Park, MI (US);
Robert Joseph Jerger, Dexter, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 3/3497 ;
U.S. Cl.
CPC ...
G01N 3/3497 ;
Abstract
A method of determining the type of fuel being burned in an engine by analyzing the signal provided by a exhaust gas oxygen sensor signal is disclosed. The determination is based on the ratio of the value of certain characteristics of the signal during the lean and rich portions of the signal.