Title: Minimization of the fuel consumption of a gasoline engine using dynamic optimization
Authors: Saerens, Bart ×
Vandersteen, Jeroen
Persoons, Tim
Swevers, Jan
Diehl, Moritz
Van den Bulck, Eric #
Issue Date: Sep-2009
Publisher: Elsevier SCI LTD
Series Title: Applied Energy vol:86 issue:9 pages:1582-1588
Abstract: This paper discusses the minimization of the fuel consumption of a gasoline engine through dynamic optimization. The minimization uses a mean value model of the powertrain and vehicle. This model has two state variables: the pressure in the engine intake manifold and the engine speed. The control input is the throttle valve angle. The model is identified on a universal engine dynamometer. Optimal state and control trajectories are calculated using Bock’s direct multiple shooting method, implemented in the software MUSCOD-II. The developed approach is illustrated both in simulation and experimentally for a generic test case where a vehicle accelerates from 1100 rpm to 3700 rpm in 30 s. The optimized trajectories yield minimal fuel consumption. The experiments show that a linear engine speed trajectory yields an extra fuel consumption of 13% when compared to the optimal trajectory. It is shown that, with a simple model, a significant amount of fuel can be saved without loss of the fun-to-drive.
ISSN: 0306-2619
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
Applied Mechanics and Energy Conversion Section
Production Engineering, Machine Design and Automation (PMA) Section
× corresponding author
# (joint) last author

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