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Combustion engine optimization: A multiobjective approach

Journal article
Authors S Jakobsson
M Saif-Ul-Hasnain
Robert Rundqvist
Fredrik Edelvik
Björn Andersson
Michael Patriksson
M Ljungqvist
D Lortet
K Wallesten
Published in Optimization & Engineering
Volume 11
Issue 4
Pages 533-554
ISSN 1389-4420
Publication year 2010
Published at Department of Mathematical Sciences, Mathematics
Pages 533-554
Language en
Keywords Combustion engine, Simulation-based optimization, Multiobjective optimization, Surrogate models, Radial basis functions
Subject categories Numerical analysis, Optimization, systems theory, Fluid mechanics


To simulate the physical and chemical processes inside combustion engines is possible by appropriate software and high performance computers. For combustion engines a good design is such that it combines a low fuel consumption with low emissions of soot and nitrogen oxides. These are however partly conflicting requirements. In this paper we approach this problem in a multi-criteria setting which has the advantage that it is possible to estimate the trade off between the different objectives and the decision of the optimal solution is postponed until all possibilities and limitations are known. The optimization algorithm is based on surrogate models and is here applied to optimize the design of a diesel combustion engine.

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