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Communication dans un congrès

Kalman Filtering for Real-Time Individual Cylinder Air Fuel Ratio Observer on a Diesel Engine Test Bench

Abstract : 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 time-varying Kalman Filter based on a physics-based model for the engine dynamics. We prove that the reference system converges toward a limit cycle. This limit cycle is used for the design of an extended Kalman filter. Performance is evaluated through test bench experiments on a 4 cylinder Diesel engine. The proposed approach has the advantage over existing methods of providing insight into the cylinders unbalance by considering a higher frequency model of the exhaust manifold. This information could pave the road to efficient closed loop control strategy as demonstrated on an experimental example.
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Communication dans un congrès
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00473240
Contributeur : François Chaplais <>
Soumis le : mercredi 14 avril 2010 - 18:06:10
Dernière modification le : samedi 19 septembre 2020 - 04:29:57

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  • HAL Id : hal-00473240, version 1

Citation

Jonathan Chauvin, Philippe Moulin, Gilles Corde, Nicolas Petit, Pierre Rouchon. Kalman Filtering for Real-Time Individual Cylinder Air Fuel Ratio Observer on a Diesel Engine Test Bench. 2006 American Control Conference, Jun 2006, Minneapolis, United States. pp.1886-1891. ⟨hal-00473240⟩

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