IC Engine: Tracking Control for an Inlet Manifold with EGR 2002-01-2156
Engine controls are usually based on a hierarchical approach because of the complex phenomena occurring in a spark ignition engine. The inlet air control is one of the most important part, that constrains performances in terms of torque and speed dynamics and also emissions. This paper deals with inlet air modeling and control of a spark ignition engine with Exhaust Gas Recirculation (EGR). In the first part, a non linear model of the manifold pressure, based on the common St Venant equation is presented. In this model, represented by a differential equation, the variation of manifold pressure is due to inlet and exhaust manifold flows. In a second part, a manifold pressure control law, which takes into account the throttle actuator and an EGR valve dynamics is presented. It allows to follow a manifold pressure trajectory with a desired parameter air-EGR ratio. This parameter is used to reduce mainly the NOx particles, by decreasing combustion's temperature. Moreover, an analysis has been carried out to take into account the noise appearing on the outputs of the system. Finally, the results obtained in simulation with then environment Matlab/Simulink, using the developed control law, are exposed on several cases.
Citation: Lauber, J., Guerra, T., and Perruquetti, W., "IC Engine: Tracking Control for an Inlet Manifold with EGR," SAE Technical Paper 2002-01-2156, 2002, https://doi.org/10.4271/2002-01-2156. Download Citation
Author(s):
Jimmy Lauber, Thierry-Marie Guerra, Wilfrid Perruquetti
Affiliated:
LAMIH, University of Valenciennes, LAIL, Ecole Centrale de Lille, Cité Scientifique BP48
Pages: 7
Event:
International Body Engineering Conference & Exhibition and Automotive & Transportation Technology Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 2002 Transactions Journal of Passenger Cars - Electronic and Electrical Systems-V111-7
Related Topics:
Spark ignition engines
Exhaust gas recirculation (EGR)
Manifolds
Combustion and combustion processes
Exhaust manifolds
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