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:
Jul. 31, 2018

Filed:

Sep. 20, 2013
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Goetz Reinhardt, Boeblingen, DE;

Hartwig Lehle, Stuttgart, DE;

Bernhard Ledermann, Stuttgart, DE;

Assignee:

ROBERT BOSCH GMBH, Stuttgart, DE;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/41 (2006.01); G01N 27/406 (2006.01); F02D 41/14 (2006.01); G01N 27/407 (2006.01);
U.S. Cl.
CPC ...
G01N 27/41 (2013.01); F02D 41/146 (2013.01); F02D 41/1454 (2013.01); G01N 27/407 (2013.01); G01N 27/4065 (2013.01);
Abstract

A method is described for operating a sensor element for detecting at least one concentration of a gas in a measuring gas chamber. The sensor element includes at least one pump cell having at least two pump electrodes connected to each other by at least one solid electrolyte. At least one measuring variable is detected in the method, and at least one compensating variable is determined. The compensating variable is at least partially dependent on capacitive effects on at least one junction between at least one of pump electrodes and the solid electrolyte. At least one corrected measuring variable is determined from the measuring variable and the compensating variable. The concentration of the gas in the measuring gas chamber is determined from the corrected measuring variable.


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