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.

Date of Patent:
Nov. 20, 2012

Filed:

Dec. 05, 2006
Applicants:

Gerd Rösel, Regensburg, DE;

Michaela Schneider, Wiesenfelden, DE;

Inventors:

Gerd Rösel, Regensburg, DE;

Michaela Schneider, Wiesenfelden, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

Method and apparatus for operating an exhaust-gas catalytic converter () of an internal combustion engine having at least one cylinder (Z-Z) and one exhaust-gas section (), in which the exhaust-gas catalytic converter () and a lambda probe () downstream of the exhaust-gas catalytic converter () are arranged. A characteristic value which is representative for the NOx concentration is determined as a function of a measured signal (VLS DOWN) of the lambda probe ().


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