Robert Clayton Carson

US Patent:

56216440, Apr 15, 1997

Filed:

Feb 8, 1995

Appl. No.:

8/385483

Inventors:

Robert P. Carson - Oxford MI
William J. Hynes - Ann Arbor MI
Edward W. Czarnecki - Washington MI
Christoph Micha - Farmington Hills MI
Edwin W. Bacon - Goodrich MI

Assignee:

Chrysler Corporation - Auburn Hills MI

International Classification:

G01M 1500

US Classification:

36443104

Abstract:

In an engine, associated control system, and method the engine including at least one camshaft having an angular position at a given point in time, and a crankshaft having an angular position at a given point in time. The method comprising the steps of measuring a first window of time using at least one crankshaft angular position pulse as a reference point in time and measuring a second window of time using at least one camshaft angular position pulse as a reference point in time. The method also ascertains an angular position difference between at least one camshaft and crankshaft equal to the second window of time divided by the first window of time and determines whether a misalignment between the at least one camshaft and the crankshaft exists by comparing the angular position difference between the at least one camshaft and crankshaft to a predetermined value.