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:
Oct. 02, 2007
Filed:
Jul. 28, 2005
Applicants:
Christian Klein, Oberriexingen, DE;
Tobias Ernst, Waiblingen, DE;
Inventors:
Christian Klein, Oberriexingen, DE;
Tobias Ernst, Waiblingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
For monitoring a sensor using differential voltage evaluation for detecting a short circuit to ground and/or to supply voltage U, a first resistor and a second resistor R, Rare assigned to the sensor, a sum voltage is determined from voltages U, Uat terminals of the sensor, the sum voltage is compared to supply voltage U, a ratio a of determined sum voltage to supply voltage Uis then calculated, and depending on the value for the ratio a, the occurrence of a shunt at the positive terminal and/or negative terminal of the sensor is detected.