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:
May. 26, 2015
Filed:
Sep. 04, 2009
Applicant:
Alexander Massner, Esslingen, DE;
Inventor:
Alexander Massner, Esslingen, DE;
Assignee:
Daimler AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 11/00 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 13/00 (2010.01); F01N 3/021 (2006.01);
U.S. Cl.
CPC ...
F01N 11/00 (2013.01); F01N 3/021 (2013.01); F01N 3/106 (2013.01); F01N 3/2066 (2013.01); F01N 3/208 (2013.01); F01N 2430/085 (2013.01); F01N 2550/02 (2013.01); F01N 2560/021 (2013.01); F01N 2560/023 (2013.01); F01N 2560/025 (2013.01); F01N 2560/026 (2013.01); F01N 2560/06 (2013.01); F01N 2560/08 (2013.01); F01N 2560/14 (2013.01); F01N 2610/02 (2013.01); F01N 2610/03 (2013.01); Y02T 10/47 (2013.01); Y02T 10/24 (2013.01); F01N 13/009 (2014.06);
Abstract
A method for operating an exhaust emission control system of a motor vehicle internal combustion engine, in the exhaust gas line of which an oxidation-catalytically active exhaust emission control component is arranged upstream of a SCR-catalyst is provided. An ageing state of the oxidation-catalytically active exhaust emission control component is determined by correlating a hydrocarbon fraction present in the exhaust emission upstream of the oxidation-catalytically active exhaust emission component with a simultaneous nitrogen oxide conversion of the SCR-catalyst.