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Air dynamic steady state and transient detection method for cam phaser movement

  • US 7,464,676 B2
  • Filed: 05/15/2006
  • Issued: 12/16/2008
  • Est. Priority Date: 07/22/2005
  • Status: Active Grant
First Claim
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1. An air dynamic steady state detection system for movement of a cam phaser of an internal combustion engine, comprising:

  • a cam position sensing device that generates a position signal based on a position of said cam phaser of said engine; and

    a control module that receives said position signal and that applies first and second filters to said position signal to select one of a transient condition and a steady state condition, and wherein said control module calculates an estimated air value based on said selection of said transient condition and said steady state condition.

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