Patent · US Expired

Method of checking the functional reliability of a pressure sensor

US6877357B2 · kind B2 · utility

2Cited by

12References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Thomas Herrmann · Neuenstadt am Kocher, DE
Knut Balzer · Beilstein, DE

Key dates

Filing date	Sep 24, 2002
Grant date	Apr 12, 2005
Priority date	—
Expiry date	Sep 24, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG01L27/007
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of checking the functional reliability of a pressure sensor, the air pressure being detected inside a vehicle body part, the vehicle having at least one additional pressure sensor for detecting the air pressure. With the help of the method, it may be possible to determine the integrity of the sensor without requiring any additional auxiliary equipment. To do so, the measured values of the pressure sensor and the measured values of the at least one additional pressure sensor are compared over a defined observation period. The pressure sensor is recognized as being defective if its measured values deviate by more than a predefined amount from the measured values of the at least one additional pressure sensor.

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