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Communication Dans Un Congrès Année : 2013

Simultaneous Air Fraction and Low-Pressure EGR Mass Flow Rate Estimation for Diesel Engines

Résumé

This paper describes a low-pressure exhaust gas recirculation (LP-EGR) mass flow rate estimation method and a robust air mass fraction observer for a Diesel engine with dual-loop EGR system. Both observers operate simultaneously eliminating the need for pressure measurement upstream the LP-EGR valve. A sliding mode observer is designed to estimate the LP-EGR mass flow rate using the standard sensors available in commercial Diesel engines. A robust linear parameter varying Kalman filter is designed for the air mass fraction estimation. The convergence and robustness of the observers are ensured by means of Lyapunov stability and a linear matrix inequality (LMI) framework for the sliding mode observer and robust Kalman filter, respectively. The observers are validated with a Motor Vehicle Emission Group (NMVEG) cycle using an engine model validated on an experimental benchmark as a reference.
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Dates et versions

hal-00752315 , version 1 (15-11-2012)

Identifiants

  • HAL Id : hal-00752315 , version 1

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Felipe Castillo Buenaventura, Emmanuel Witrant, Vincent Talon, Luc Dugard. Simultaneous Air Fraction and Low-Pressure EGR Mass Flow Rate Estimation for Diesel Engines. IFAC Joint conference SSSC - 5th Symposium on System Structure and Control, Feb 2013, Grenoble, France. ⟨hal-00752315⟩
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