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Method and system for knock sensor diagnostic

  • US 10,156,220 B1
  • Filed: 02/08/2018
  • Issued: 12/18/2018
  • Est. Priority Date: 02/08/2018
  • Status: Active Grant
First Claim
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1. A method for an engine, comprising:

  • inducing a knock event in a cylinder via operation of a laser ignition device; and

    diagnosing a knock sensor based on knock sensor output following the induced knock event.

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