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Fuel cutoff transition control systems and methods

  • US 8,386,150 B2
  • Filed: 04/28/2010
  • Issued: 02/26/2013
  • Est. Priority Date: 04/28/2010
  • Status: Active Grant
First Claim
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1. An engine control system comprising:

  • a fuel cutoff (FCO) module that, when a FCO event is disabled, determines a feed-forward (FF) number of cylinders to offset a delay period associated with supplying fuel to the cylinders of an engine and selectively maintains a FCO torque request at a predetermined torque;

    a fuel control module that commands fuel be supplied to the FF number of cylinders of the engine when the FCO event is disabled; and

    a spark control module that maintains a spark timing of the FF number of cylinders at a fully retarded spark timing based on the FCO torque request.

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