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FIRING FRACTION MANAGEMENT IN SKIP FIRE ENGINE CONTROL

  • US 20130092128A1
  • Filed: 10/17/2012
  • Published: 04/18/2013
  • Est. Priority Date: 10/17/2011
  • Status: Active Grant
First Claim
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1. A skip fire engine controller comprising:

  • a firing fraction determining unit arranged to determine a firing fraction suitable for delivering a desired engine output, wherein the firing fraction determining unit is arranged to determine an operational firing fraction that has an associated repeating firing cycle length that will repeat at least a designated number of times per second at the current engine speed; and

    a firing controller arranged to direct firings in a skip fire manner that delivers the operational firing fraction.

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