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Method of regulating an internal combustion engine

  • US 7,191,772 B2
  • Filed: 05/20/2005
  • Issued: 03/20/2007
  • Est. Priority Date: 05/21/2004
  • Status: Expired
First Claim
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1. A method of regulating an internal combustion engine in order to reach presettable nitrogen oxide emission values of the internal combustion engine, comprising:

  • supplying the internal combustion engine at least a portion of an operating time with a first fuel and at least a portion of the operating time with a second fuel;

    controlling a quantity of the first fuel supplied to the internal combustion engine per unit of time according to one of a preset control target value or a constant value; and

    regulating a quantity of the second fuel supplied to the internal combustion engine per unit of time by matching a mixture pressure influenced by the quantity of the second fuel in an intake of the internal combustion engine to a mixture pressure target value determined according to a delivered output and a preset nitrogen oxide emission value of the internal combustion engine so as to reach the preset nitrogen oxide emission value.

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