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.:

US 9217786 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 22, 2015

Filed:

Nov. 09, 2012
Applicants:

Continental Automotive France, Toulouse, FR;

Continental Automotive Gmbh, Hannover, DE;

Inventors:

Jean-Pierre Delcol, Tournefeuille, FR;

Aurore Desgeorge, Tournefeuille, FR;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01); G01B 7/30 (2006.01); G01R 35/00 (2006.01); F02D 41/00 (2006.01); F02D 41/22 (2006.01); G01R 33/12 (2006.01); G01D 5/244 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
G01R 35/00 (2013.01); F02D 41/009 (2013.01); F02D 41/0097 (2013.01); F02D 41/222 (2013.01); G01B 7/30 (2013.01); G01D 5/24466 (2013.01); G01R 33/1207 (2013.01); G01R 31/2829 (2013.01); Y02T 10/40 (2013.01);
Abstract

A variable-reluctance magnetic detection head delivers an electrical signal (Uin) and a rising wavefront of the electrical signal is compared with a first threshold (Th) in order to switch from a first state (B) to a second state (B), and a falling wavefront is compared with a second threshold (Tb) lower than the first threshold (Th) in order to switch from the second state (B) to the first state (B). In a diagnostics step, the first threshold (Th) or the second threshold (Tb) is modified, bringing these thresholds closer together, and a magnetic detection head is diagnosed as being defective if the duty cycle of the second state (B) is modified during the diagnostics step by a value higher than a diagnostics threshold predetermined in relation to a reference level.


Find Patent Forward Citations

Delcol, Jean-Pierre. (2015). Method for diagnosing a variable reluctance magnetic detection head, and detection circuit (U.S. Patent No. 9217786). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9217786

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…