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.

Date of Patent:
Feb. 16, 2016

Filed:

May. 22, 2014
Applicant:

Ford Global Technologies, Llc, Dearborn, MI (US);

Inventors:

Brent Edward Sealy, Plymouth, MI (US);

Michael Casedy, Ann Arbor, MI (US);

Timothy Robert Gernant, Ann Arbor, MI (US);

Assignee:

Ford Global Technologies, LLC, Dearborn, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F02D 41/02 (2006.01); F01N 11/00 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0235 (2013.01); F01N 3/20 (2013.01); F01N 11/00 (2013.01);
Abstract

Systems and methods for diagnosing operation of a catalyst are presented. In one example, threshold limits for catalyst variables are adjusted in response to attributes of a catalyst monitor sensor that may vary with sensor age. The catalyst variables may provide insight into whether or not the catalyst is degraded or operating as intended.


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