Patent · US Active

Method and device for monitoring an exhaust gas probe

US7874285B2 · kind B2 · utility

20Cited by

9References

7Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Stefan Barnikow · Bad Abbach, DE
Michaela Schneider · Wiesenfelden, DE
Norbert Sieber · Regensburg, DE

Key dates

Filing date	Oct 4, 2007
Grant date	Jan 25, 2011
Priority date	—
Expiry date	Aug 13, 2028

Classification

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

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.

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