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Internal combustion engine thermal state model

  • US 5,931,140 A
  • Filed: 05/22/1997
  • Issued: 08/03/1999
  • Est. Priority Date: 05/22/1997
  • Status: Expired due to Fees
First Claim
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1. A method for estimating temperature in an internal combustion engine system, comprising the steps of:

  • reticulating the engine system into a network of thermally interdependent temperature nodes;

    identifying, for at least one of the temperature nodes, all significant heat transfer branches into and out of the node;

    modeling heat transfer at the identified heat transfer branches; and

    estimating temperature at the at least one heat transfer node as a function of the modeled heat transfer at the identified heat transfer branches.

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