Patent · US Expired

Method and device for monitoring a sensor

US6952953B2 · kind B2 · utility

4Cited by

4References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Holger Plote · Fellbach, DE
Andreas Krautter · Steinheim, DE
Michael Walter · Kornwestheim, DE
Juergen Sojka · Gerlingen, DE

Key dates

Filing date	Feb 26, 2002
Grant date	Oct 11, 2005
Priority date	—
Expiry date	Feb 26, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device and a method for monitoring a sensor for an exhaust-gas after-treatment system, in particular a temperature sensor. In specified operating states, a first signal from the first sensor to be monitored may be compared to a second signal from a second sensor. Errors may be detected when at least the two signals differ from one another by more than a value.

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