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. 22, 2016
Filed:
Feb. 06, 2014
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Hassene Jammoussi, Dearborn, MI (US);
Imad Hassan Makki, Dearborn Heights, MI (US);
Adam Nathan Banker, Canton, MI (US);
Michael Casedy, Ann Arbor, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); F02D 41/14 (2006.01); G01M 15/10 (2006.01); F02D 41/22 (2006.01); F02D 41/08 (2006.01); F02D 41/28 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1495 (2013.01); F02D 41/1454 (2013.01); F02D 41/222 (2013.01); G01M 15/104 (2013.01); F02D 41/08 (2013.01); F02D 2041/228 (2013.01); F02D 2041/286 (2013.01); Y02T 10/40 (2013.01);
Abstract
A method for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one embodiment, the method comprises indicating exhaust gas sensor degradation based on shape of a distribution of extreme values of a plurality of sets of lambda differentials collected during selected operating conditions. In this way, the exhaust gas sensor may be monitored in a non-intrusive manner.