The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 01, 1997

Filed:

Oct. 13, 1994
Applicant:
Inventors:

Franz Eidler, Vaihingen, DE;

Werner Zimmermann, Stuttgart, DE;

Thomas Ruping, Lenningen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; G01D / ; G05B / ;
U.S. Cl.
CPC ...
36455101 ; 364424039 ; 36442404 ; 36443103 ; 36443111 ; 73115 ; 731173 ; 731181 ; 123425 ; 123478 ; 123479 ; 123486 ;
Abstract

A method and a device for monitoring the functions of a sensor, in particular of a sensor for detecting a measurable value in a motor vehicle. If specified operating states exist, a measurable value is detected and compared to a reference value. Faults are detected when a measured value, held by the sensor, deviates by more than a tolerance value from a reference value. A measured value which had been detected and stored at an earlier instant when a corresponding operating state existed is used as the reference value.


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