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INTERNAL COMBUSTION ENGINE CONTROL FOR IMPROVED FUEL EFFICIENCY

  • US 20100010724A1
  • Filed: 01/16/2009
  • Published: 01/14/2010
  • Est. Priority Date: 07/11/2008
  • Status: Active Grant
First Claim
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1. A method of controlling the operation of an internal combustion engine having a plurality of working chambers, each working chamber being generally arranged to operate in a succession of working cycles, the method comprising operating the engine in a variable displacement mode that includes:

  • delivering air and fuel to the working chambers during the active working cycles;

    firing the working chambers in a firing pattern dynamically determined on a firing opportunity by firing opportunity basis during operation of the engine that skips the firing of selected skipped working cycles and fires selected active working cycles;

    wherein an amount of air and fuel delivered to the working chambers during a first set of the active working cycles is substantially optimized; and

    wherein the firing pattern is determined at least in part using predictive adaptive control to provide a desired engine output, and wherein the predictive adaptive control includes feedback indicative of at least one of requested and actual working cycle firings.

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