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Torque based air per cylinder and volumetric efficiency determination

  • US 7,440,838 B2
  • Filed: 04/19/2007
  • Issued: 10/21/2008
  • Est. Priority Date: 11/28/2006
  • Status: Expired due to Fees
First Claim
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1. A method of regulating operation of an internal combustion engine, comprising:

  • monitoring a manifold absolute pressure (MAP) of said engine;

    determining an engine torque based on said MAP;

    estimating an air per cylinder (APC) based on said torque;

    determining a volumetric efficiency of said engine based on said APC; and

    regulating operation of said engine based on said volumetric efficiency.

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