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Method and device for controlling the exhaust gas recirculation in an internal-combustion engine based on the measurement of the oxygen concentration in the gaseous mixture taken in by the engine

  • US 20050274369A1
  • Filed: 04/28/2005
  • Published: 12/15/2005
  • Est. Priority Date: 06/15/2004
  • Status: Active Grant
First Claim
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1. A device for controlling the exhaust gas recirculation in an internal-combustion engine (1), said engine (1) being provided with an air-intake system (2), a gas-exhaust system (4), and an exhaust-gas-recirculation system (5);

  • said device being characterized in that it comprises measuring means (25) for measuring the oxygen concentration in the air/recirculated-exhaust-gas mixture taken in by the engine; and

    control means (29) connected to said measuring means (25) and to the exhaust-gas-recirculation system (5) for controlling the exhaust gas recirculation on the basis of the oxygen concentration in the mixture taken in by the engine (1).

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