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Method and system for transient airflow compensation in an internal combustion engine

  • US 7,380,447 B2
  • Filed: 06/10/2006
  • Issued: 06/03/2008
  • Est. Priority Date: 06/10/2006
  • Status: Active Grant
First Claim
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1. A method for determining airflow to a cylinder of an internal combustion engine, such airflow passing to the cylinder through an intake manifold, comprising:

  • providing a model of the intake manifold, such model providing a relationship between expected output airflow from the intake manifold in response to airflow into the intake manifold;

    determining from the model the expected output airflow from the intake manifold from a previous commanded airflow into the intake manifold;

    determining a compensation airflow required for the input airflow to the intake manifold to drive the expected output airflow from the intake manifold towards the desired cylinder airflow; and

    providing such compensation airflow to the intake manifold.

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