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:
Nov. 07, 1995
Filed:
Sep. 30, 1994
Richard S Blander, Ann Arbor, MI (US);
Kenneth J Wenzel, Farmington Hills, MI (US);
Venu G Piska, Troy, MI (US);
Chrysler Corporation, Highland Park, MI (US);
Abstract
A method for detecting a mis-built engine due to camshaft and crankshaft misalignment and the skipping of a timing belt, timing chain, or timing gear mechanism by measuring an angular position of a camshaft imparted from a camshaft sensor to obtain an electrical signal representation thereof, measuring an angular position of a crankshaft imparted from a crankshaft sensor to obtain an electrical signal representation thereof, calculating an angular difference between the angular positions of the camshaft and crankshaft, comparing the angular difference between the angular positions of the camshaft and crankshaft, and an initial build reference value, determining if a timing mechanism malfunction has occurred, storing a fault code in memory if misalignment between the camshaft and crankshaft exists for subsequent retrieval by a service operator, and illuminating a malfunction indicator light.