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Modeling Waves in ICE Ducts: Comparison of 1D and Low Order Models
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 06, 2015 by SAE International in United States
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The paper presents a comparative study of various models used to estimate gas dynamics in internal combustion engine (ICE) ducts. 1D models provide a sufficient accuracy, but they are still not implementable on current ECUs. On the other hand, low order models can be real-time but their lack of accuracy and high calibration cost are still a challenging problem.
This work aims at presenting a comparison of currently used gas dynamics models to predict transient phenomena in engine ducts. It emphasizes on 1D and low order models. To test under engine-like conditions, the intake path of a virtual engine implemented in GT-Power and a production two cylinder engine are used.
Results show a contrast in the performance of the different models, which gives the possibility to evaluate the various approaches. Based on this assessment and depending on the application in hand, the models can be chosen properly to estimate the gas dynamics in internal combustion engine ducts.
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CitationMeddahi, F., Fleck, C., Grodde, S., Charlet, A. et al., "Modeling Waves in ICE Ducts: Comparison of 1D and Low Order Models," SAE Technical Paper 2015-24-2386, 2015, https://doi.org/10.4271/2015-24-2386.
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