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FIRING PATTERN MANAGEMENT FOR IMPROVED TRANSIENT VIBRATION IN VARIABLE CYLINDER DEACTIVATION MODE

  • US 20150369140A1
  • Filed: 06/20/2014
  • Published: 12/24/2015
  • Est. Priority Date: 06/20/2014
  • Status: Active Grant
First Claim
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1. A cylinder control system of a vehicle, comprising:

  • a cylinder control module that;

    determines target numbers of cylinders of an engine to be activated during a period;

    determines, based on the target numbers and an engine speed, N predetermined subsequences for controlling the cylinders of the engine during the period;

    determines whether a transition parameter is associated with at least one transition between two of the N predetermined subsequences;

    selectively adjusts at least one of the N predetermined subsequences based on the determination of whether a transition parameter is associated with at least two of the N predetermined subsequences; and

    a cylinder actuator module that, during the period, controls the cylinders of the engine based on the N predetermined subsequences and the at least one selectively adjusted predetermine subsequences.

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