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Method, computer program and control and/or regulating device for operating an internal combustion engine

  • US 6,983,737 B2
  • Filed: 07/24/2002
  • Issued: 01/10/2006
  • Est. Priority Date: 12/04/2001
  • Status: Expired due to Fees
First Claim
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1. A method for operating an internal combustion engine in dependence upon operating characteristic variables including at least one of:

  • rpm (nmot) of a crankshaft;

    temperature (Tmot) of the internal combustion engine; and

    , temperature of the intake air (Taev);

    the method comprising the steps of;

    obtaining a temperature (Taevk) of the inducted air in a region near the combustion chamber or in the combustion chamber itself at least approximately from a detected or modeled temperature (Taev) of the inducted air in a region remote from the combustion chamber;

    determining the temperature (Taevk) of the inducted air in the region near the combustion chamber or in the combustion chamber itself under the assumption that the inducted air has a modeled or detected initial temperature (Taevk);

    bringing the intake air into thermal contact with a typical component during a contact time (tcontact) which is typical for a type of the internal combustion engine and for an operating state of the internal combustion engine with the typical component being a modeled or detected temperature (Tev); and

    , utilizing at least an inlet valve, a cylinder head or a coolant as said typical component.

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