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FEED-FORWARD CAMSHAFT PHASER CONTROL SYSTEMS AND METHODS

  • US 20110264342A1
  • Filed: 04/22/2010
  • Published: 10/27/2011
  • Est. Priority Date: 04/22/2010
  • Status: Active Grant
First Claim
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1. An engine control system comprising:

  • an inertia phase detection module that determines when an inertia phase of a gear shift is occurring within a transmission;

    a feed-forward (FF) engine speed module that predicts an engine speed for a future time when the inertia phase ends;

    a FF APC module that predicts an air-per-cylinder (APC) for the future time based on the engine speed;

    a FF phaser position module that determines a FF phaser position based on the engine speed and the APC; and

    a phaser control module that controls a camshaft phaser position based on the FF phaser position during the inertia phase of the gear shift.

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