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Method of fuel injection for a variable displacement engine

  • US 9,506,408 B2
  • Filed: 06/02/2014
  • Issued: 11/29/2016
  • Est. Priority Date: 06/02/2014
  • Status: Active Grant
First Claim
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1. A method for an engine including a selectively deactivatable cylinder, comprising:

  • decreasing an amount of fuel injected by a port injector while increasing an amount of fuel injected by a direct injector prior to deactivating the cylinder;

    wherein the amount of fuel injected by the port injector is substantially zero;

    further comprising discontinuing fueling via the direct injector when a quantity of intake port fuel puddle of the cylinder is completely consumed.

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