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. 17, 2016
Filed:
Mar. 28, 2012
Etsuko Muraji Stewart, Laingsburg, MI (US);
Joseph J. Moon, Clawson, MI (US);
Darrell W. Burleigh, Wixom, MI (US);
Etsuko Muraji Stewart, Laingsburg, MI (US);
Joseph J. Moon, Clawson, MI (US);
Darrell W. Burleigh, Wixom, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A control system for a vehicle includes a motor driver module, a correlation triggering module, a target phase angle module, and a correlation control module. The motor driver module controls an electric camshaft phaser of an engine based on a desired phase angle between a position of a crankshaft and a position of a camshaft. The correlation triggering module selectively generates a signal based on the position of the camshaft. The target phase angle module adjusts the desired phase angle to a predetermined phase angle in response to the generation of the signal. The correlation control module, in response to the generation of the signal: determines the position of the crankshaft when the camshaft is in a predetermined position; and selectively outputs a fault indicator based on a comparison of the position of the crankshaft and a predetermined crankshaft position range corresponding to the predetermined position.