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System for method for controlling engine knock of a variable displacement engine

  • US 10,316,774 B2
  • Filed: 02/09/2017
  • Issued: 06/11/2019
  • Est. Priority Date: 06/09/2016
  • Status: Active Grant
First Claim
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1. A method for operating an engine, comprising:

  • operating the engine with a first group of combusting cylinders in response to a first condition;

    operating the engine with a second group of combusting cylinders in response to a second condition;

    adjusting spark timing of a cylinder in response to an indication of knock via a first group of sensors during the first condition; and

    adjusting spark timing of the cylinder in response to an indication of knock via a second group of sensors during the second condition.

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