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:
Jan. 25, 2011

Filed:

Oct. 04, 2007
Applicants:

Stefan Barnikow, Bad Abbach, DE;

Michaela Schneider, Wiesenfelden, DE;

Norbert Sieber, Regensburg, DE;

Inventors:

Stefan Barnikow, Bad Abbach, DE;

Michaela Schneider, Wiesenfelden, DE;

Norbert Sieber, Regensburg, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); G01M 19/00 (2006.01); G01M 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Depending on a trim controller diagnosis, a suspicion marker for an asymmetric ageing of the exhaust gas probe is allocated either a 'true' value or a 'false' value and, if the value of the suspicion marker is “true”, a dynamic diagnosis will be performed based on the exhaust gas probe's measuring signal, on the basis of the results of which diagnosis either an asymmetrically aged or a non-asymmetrically aged exhaust gas probe will be detected.


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