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:
Mar. 26, 2019
Filed:
Jan. 16, 2017
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/20 (2006.01); F01N 9/00 (2006.01); F01N 11/00 (2006.01); F01N 3/08 (2006.01);
U.S. Cl.
CPC ...
F01N 3/20 (2013.01); F01N 3/0842 (2013.01); F01N 9/00 (2013.01); F01N 11/007 (2013.01); F01N 2550/03 (2013.01); F01N 2550/20 (2013.01); F01N 2560/025 (2013.01); F01N 2560/026 (2013.01); F01N 2560/14 (2013.01); F01N 2570/14 (2013.01); F01N 2900/0418 (2013.01); F01N 2900/14 (2013.01); F01N 2900/1602 (2013.01); F01N 2900/1612 (2013.01); Y02T 10/47 (2013.01);
Abstract
The subject matter of the disclosure relates to a method of diagnosing NOx storage catalyst during the operation of a motor vehicle. The method uses two diagnosis sub-methods having various sensitivities with respect to sulfur contamination of the NOx storage catalyst. The results of the two sub-methods are used to ascertain proportions of aging of the NOx storage catalyst resulting from thermal aging and sulfur contamination.