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Knocking control system and method for internal combustion engine using multiple fuels

  • US 6,951,202 B2
  • Filed: 10/29/2004
  • Issued: 10/04/2005
  • Est. Priority Date: 11/26/2003
  • Status: Expired due to Fees
First Claim
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1. A knocking control system for an internal combustion engine, comprising:

  • a fuel supply mechanism capable of supplying the internal combustion engine with a first fuel and a second fuel with a different octane rating from the first fuel, and a controller performing a knocking control to control a knocking occurring in the internal combustion engine, the controller being adapted to;

    obtain a requested ignition timing during the knocking control;

    obtain a remaining quantity of the first fuel and the second fuel; and

    select and change one of an ignition timing and a fuel supply ratio between the first and second fuels, the selection being made based on the requested ignition timing and the remaining quantity of the first and second fuels.

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