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. 05, 2011
Filed:
May. 29, 2007
Andrew M. Zettel, Ann Arbor, MI (US);
John F. Van Gilder, Webberville, MI (US);
Rick H. Schroeder, Lapeer, MI (US);
Michael J. Taljonick, Davison, MI (US);
Christopher J. Dobies, Beverly Hills, MI (US);
Andrew M. Zettel, Ann Arbor, MI (US);
John F. Van Gilder, Webberville, MI (US);
Rick H. Schroeder, Lapeer, MI (US);
Michael J. Taljonick, Davison, MI (US);
Christopher J. Dobies, Beverly Hills, MI (US);
Abstract
A diagnostic system for a vehicle includes a first sensor that generates a first status signal, which is indicative of an engine speed of an engine. A second sensor generates a second status signal that is indicative of an actual accessory speed of an accessory. The accessory is coupled to the engine via a belt system. A control module determines an expected accessory speed based on the engine speed and determines a residual accessory speed based on the expected and actual accessory speeds. The control module also detects a fault in the belt system based on the residual accessory speed.