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.
Patent No.:
Date of Patent:
Jul. 04, 1995
Filed:
Sep. 20, 1994
Applicant:
Inventors:
Eugen Joos, Freiberg, DE;
Eberhard Bauer, Ludwigsburg, DE;
Assignee:
Robert Bosch GmbH, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ; G08C / ; G01M / ; G01R / ;
U.S. Cl.
CPC ...
340825160 ; 340870190 ; 7311 / ; 364483 ; 324522 ;
Abstract
A method for functional monitoring of an electrical load, controlled by a control circuit, provides that defects in the load are detected by comparison of a signal which is used to control the load and a status signal which is passed back to the control circuit from the load. A short-circuit to ground or to the supply voltage and a cable failure can be confirmed by logical evaluation of the signals before, during and after a switching event. In this case, it is possible to differentiate between the individual defect cases.