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Design of diesel engine's optimal control maps for high efficiency and emission reduction
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Sähkötekniikan korkeakoulu |
Master's thesis
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ELEC3025
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en
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77+10
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Abstract
The objective of this thesis is to create static optimal control maps of diesel engines for high efficiency and emission reduction. The calibration tool to be used to create the control maps, named "Off-line parameterization tool", was designed based on the Design of Experiments method. The optimization goal is to minimize the Brake Specific Fuel Consumption (BSFC) of the engine by the engine's input parameters and under some emission constraints. The tool was designed to be able to work both fully automatically and semi-automatically. Though most of the previous researches on engine calibration have used the Design of Experiments approach, their implementations in choosing experimental design types and optimization process are different compared to this thesis. The unique aspect of this research lies on the significant properties of the Off-line parameterization tool. Firstly, this tool is flexible, it is able to work with multiple inputs and multiple outputs. Secondly, it can reduce the calibration time as the engine running time is kept as small as possible and all the data processing work is done automatically.