Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jerry W. Kortge0
Date of Patent
April 5, 2011
0Patent Application Number
117475150
Date Filed
May 11, 2007
0Patent Primary Examiner
Patent abstract
A cam phaser diagnostic system is provided. The system includes: a first sample variance module that computes a first variance based on a desired cam phaser position. A second sample variance module computes a second variance based on a measured cam phaser position. An evaluation module diagnoses faulty cam phaser operation based on the first variance and the second variance.
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