Patent · US Active

Method and device for diagnosing electrodes in sensor elements

US9316626B2 · kind B2 · utility

11Cited by

11References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Goetz Reinhardt · Eppelheim, DE
Torsten Handler · Stuttgart, DE
Jens Wagner · Untergruppenbach, DE
Lothar Diehl · Stuttgart, DE
Bjoern Alexander Schuetz · Besigheim, DE
Helge Schichlein · Stuttgart, DE
Thomas Seiler · Stuttgart, DE

Key dates

Filing date	Dec 28, 2011
Grant date	Apr 19, 2016
Priority date	—
Expiry date	Sep 26, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/007
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for diagnosing a sensor element for detecting at least one fraction of a gas component of a gas in a measuring gas chamber, in particular a sensor element for detecting oxygen in an exhaust gas of an internal combustion engine. The sensor element includes at least one first electrode, to which the gas may be applied, and at least one second electrode, the first electrode and the second electrode being connected via at least one solid electrolyte. A diagnostic signal is applied between the first electrode and the second electrode, a response signal being detected between the first electrode and the second electrode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.