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:
Apr. 20, 2010
Filed:
Nov. 21, 2007
Donovan L. Dibble, Utica, MI (US);
Kenneth J. Cinpinski, Ray, MI (US);
Matthew A. Wiles, Royal Oak, MI (US);
Vimesh M. Patel, Novi, MI (US);
Donovan L. Dibble, Utica, MI (US);
Kenneth J. Cinpinski, Ray, MI (US);
Matthew A. Wiles, Royal Oak, MI (US);
Vimesh M. Patel, Novi, MI (US);
Abstract
A diagnostic system for an engine includes a pressure monitoring module that determines a plurality of first average pressure values and a plurality of second average pressure values of a fluid supply provided to a camshaft phaser. A diagnostic module identifies one of a plurality of cylinders associated with a failed variable valve lift mechanism based on the first and the second average pressure values. Each of the first and the second average pressure values respectively correspond to each of the plurality of cylinders.