Engine knock diagnostic

Engine knock diagnostic

  • CN 101,587,002 A
  • Filed: 05/04/2009
  • Published: 11/25/2009
  • Est. Priority Date: 05/01/2008
  • Status: Active Application
First Claim
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1. knock diagnostic module comprises:

  • Pinking module, described pinking module increase progressively the sample counting value when being received with the corresponding cylinder ignition signal of first cylinder, and optionally increase progressively knock-meter numerical value based on the knock detection signal corresponding with the cylinder ignition signal of first cylinder;

    Pinking analysis module, the described pinking analysis module knock-meter numerical value to first cylinder when the sample counting value of first cylinder reaches predetermined value is analyzed, and optionally produces excessive detonation signal when described knock-meter numerical value surpasses predetermined threshold;

    WithThe remedial action module, described remedial action module is optionally carried out remedial action based on described excessive detonation signal.

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