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:
Aug. 16, 2016
Filed:
Feb. 13, 2013
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Michael James Uhrich, West Bloomfield, MI (US);
Adam Nathan Banker, Plymouth, MI (US);
James Michael Kerns, Trenton, MI (US);
Imad Hassan Makki, Dearborn Heights, MI (US);
Hassene Jammoussi, Dearborn, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 11/00 (2006.01); F02D 41/12 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F01N 11/00 (2013.01); F02D 41/123 (2013.01); F02D 41/1441 (2013.01); F02D 41/1454 (2013.01); F02D 41/222 (2013.01);
Abstract
Systems and methods for monitoring an exhaust gas sensor coupled in an engine exhaust are provided. In one example approach, a method comprises indicating exhaust gas sensor degradation based on a downstream exhaust gas sensor responding before the upstream exhaust gas sensor during a commanded change in air-fuel ratio.