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. 30, 2010
Filed:
Jun. 15, 2005
Applicants:
Helmut Oswald, Albig, DE;
Frank Schwerin, Braunschweig, DE;
Inventors:
Helmut Oswald, Albig, DE;
Frank Schwerin, Braunschweig, DE;
Assignee:
GM Global Technology Operations, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 27/04 (2006.01); F01N 3/00 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The aim of the invention is to estimate a temperature jump (ΔT) of a catalytic converter of an internal combustion engine in the event of a change in the composition of the exhaust gas. To this end, a quantity of a reactand (SI) stored in the catalytic converter is monitored (-), and the heating (ΔT) of the catalytic converter resulting from the reaction heat released during the reaction of the stored reactand is assumed () as the temperature jump (ΔT).