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:
Oct. 26, 2021
Filed:
Oct. 04, 2019
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Andrew Paul Bagnasco, Plymouth, MI (US);
Mario Anthony Santillo, Canton, MI (US);
Paul Raymond Willette, Sterling Heights, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/02 (2006.01); F01N 3/10 (2006.01); F01N 11/00 (2006.01); F02D 41/14 (2006.01); F02D 41/38 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0235 (2013.01); F01N 3/101 (2013.01); F01N 11/002 (2013.01); F01N 11/007 (2013.01); F02D 41/1441 (2013.01); F02D 41/1458 (2013.01); F02D 41/38 (2013.01); F01N 2550/02 (2013.01); F02D 2200/0802 (2013.01);
Abstract
Methods and systems are provided for enabling diagnostics of an exhaust catalyst regardless of a level of oxygen stored in the catalyst. In one example, a method may include initiating diagnostics of the catalyst in response to an oxygen sensor coupled downstream of the catalyst recording a measurement that crosses a stoichiometric air-fuel ratio output more than a threshold number of times.