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System for controlling engine fueling to limit engine output power

  • US 7,721,539 B2
  • Filed: 05/01/2007
  • Issued: 05/25/2010
  • Est. Priority Date: 05/01/2007
  • Status: Active Grant
First Claim
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1. A method for controlling fueling of an internal combustion engine, the engine including an intake manifold, one or more exhaust manifolds and a turbocharger coupled between the intake and exhaust manifolds, the method comprising:

  • determining ambient pressure,estimating an air inlet density of a compressor of the turbocharger as a function of the determined ambient pressure,determining a maximum value of engine exhaust temperature as a function of the air inlet density of the compressor of the turbocharger,measuring engine exhaust temperature,determining an error value as a function of the maximum value of the engine exhaust temperature and the measured engine exhaust temperature, andlimiting fuel supplied to the engine based on the error value.

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