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:
Feb. 28, 2006
Filed:
May. 04, 2004
Applicants:
Alexander Ketterer, Regensburg, DE;
Hong Zhang, Tegernheim, DE;
Inventors:
Alexander Ketterer, Regensburg, DE;
Hong Zhang, Tegernheim, DE;
Assignee:
Siemens Aktiengellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the present invention lambda control is carried out by using a NOsensor which is arranged in the catalytic converter or downstream of this. At the same time on the basis of the measured NOvalues the operating status is adjusted and the oxygen storage capacity of the catalytic converter is determined for diagnostic purposes.