Patent · US Expired

Diagnostic method for a sensor

US7095238B2 · kind B2 · utility

4Cited by

4References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Heinrich Steinruecken · Ludwigsburg, DE
Klaus Walter · Paderborn, DE
Rasmus Rettig · Gerlingen, DE
Klemens Gintner · Ludwigsburg, DE

Key dates

Filing date	Sep 12, 2003
Grant date	Aug 22, 2006
Priority date	—
Expiry date	Sep 12, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG01D3/08
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a method for diagnosis of a sensor in a motor vehicle having an internal combustion engine, during operation of the motor vehicle, an output signal of the sensor is monitored for whether a maximum value of the output signal undershoots a first threshold value and/or a minimum value of the output signal overshoots a second threshold value. In that case a signal is forwarded to a controller that signals to the controller that the sensor, upon restarting of the motor vehicle, might be furnishing incorrect data.

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