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Fuel property determination system

  • US 20050065710A1
  • Filed: 09/17/2004
  • Published: 03/24/2005
  • Est. Priority Date: 09/19/2003
  • Status: Active Grant
First Claim
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1. A fuel property determination system for an internal combustion engine, comprising:

  • a control unit configured to determine a fuel property indicative that fuel in use is heavy or light, on the basis of a degree of change of a revolution speed during a period from an expansion stroke of a first fuel injection cylinder at engine start to an expansion stroke of a final fuel injection cylinder in a first round as to all cylinders of the engine.

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