Real-time Nonlinear Individual Cylinder Air Fuel Ratio Observer on a Diesel Engine Test Bench

نویسندگان

  • Jonathan Chauvin
  • Philippe Moulin
  • Gilles Corde
  • Nicolas Petit
  • Pierre Rouchon
چکیده

We propose an estimator of the individual cylinder air fuel ratios in a turbocharged Diesel Engine using as only sensor the single air fuel ratio sensor placed downstream the turbine. The observer consists of a nonlinear filter designed on a physics-based time-varying model for the engine dynamics. Convergence is proven, using a Lyapounov function. Performance is studied through simulations and test bench experiments on a 4 cylinder engine.Copyright c 2005 IFAC.

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تاریخ انتشار 2005