Title: Fuzzy control of a turbocharged diesel engine

Authors: Jean-Francois Arnold, Nicolas Langlois, Houcine Chafouk, Gerard Tremouliere

Addresses: Le Moteur Moderne – IRSEEM, 5-9 rue Benoit Frachon, Palaiseau 91127, France. ' ESIGELEC – IRSEEM, Technopole du Madrillet, Avenue Galilee, St-Etienne du Rouvray 76801, France. ' ESIGELEC – IRSEEM, Technopole du Madrillet, Avenue Galilee, St-Etienne du Rouvray 76801, France. ' Le Moteur Moderne, 5-9 rue Benoit Frachon, Palaiseau 91127, France

Abstract: In this paper an innovative fuzzy controller is proposed to regulate the intake manifold pressure and the fresh mass airflow of diesel engines simultaneously. Unlike many multivariable controllers published in the literature, it requires neither an internal model nor identification algorithms. It has been designed considering the instrumentation set usually embedded in a mass-produced passenger car. Its rule-based structure has led to an algorithm, which is easy to implement. In comparison to controllers embedded at present in standard Engine Control Units (ECUs), it improves the trajectory tracking of desired outputs as noted during simulation of EURO cycles. In terms of robustness, this controller is little sensitive to the parameter disparity generally encountered in mass-produced engines.

Keywords: diesel engines; air system; exhaust gas recirculation; EGR; variable-geometry turbocharger; VGT; fuzzy logic; multivariable controller; fuzzy control; intake manifold pressure; fresh mass airflow; trajectory tracking; simulation.

DOI: 10.1504/IJMIC.2008.020127

International Journal of Modelling, Identification and Control, 2008 Vol.3 No.3, pp.297 - 304

Published online: 28 Aug 2008 *

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