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:
May. 22, 2012
Filed:
Sep. 10, 2009
Kenneth J. Cinpinski, Ray, MI (US);
Donovan L. Dibble, Utica, MI (US);
Joshua D Cowgill, Hartland, MI (US);
Scot A. Douglas, Howell, MI (US);
Kenneth J. Cinpinski, Ray, MI (US);
Donovan L. Dibble, Utica, MI (US);
Joshua D Cowgill, Hartland, MI (US);
Scot A. Douglas, Howell, MI (US);
Abstract
A system includes a pressure signal adjustment module that generates a maximum pressure signal based on a fluid pressure signal from a pressure sensor of a camshaft phaser system of an engine. The pressure signal adjustment module detects a maximum peak value of the fluid pressure signal and maintains the maximum pressure signal at the maximum peak value for a peak and hold period. A diagnostic module detects a fault of the camshaft phaser system based on the maximum pressure signal during the peak and hold period.