Scalable Component-Based Modeling for Optimizing Engines with Supercharging, E-Boost and Turbocompound Concepts
Downsizing and turbocharging is a proven technology for fuel consumption
reduction in vehicles. To further improve the performance, electrified
components in the turbocharger arrangements have been proposed, and
investigations have shown acceleration improvements, emission reductions,
and further fuel conversion efficiency benefits.
Simulation tools play an important role in the design process as the
interplay between component selection, control strategy, system properties
and constraints is very complex. Evaluations are performed with respect to
BSFC map, fuel consumption in a drive cycle, acceleration performance, as
well as many other aspects. A component-based engine and vehicle model is
developed and evaluated to facilitate the process of assessing and
optimizing the performance of e.g. engine, charging system, and electrical
machine components.
Considerations of the execution time and model fidelity have resulted in a
choice of models in the mean value engine model family. The turbocharging
and electrical system models have all been evaluated using experimental data
from engine dynamometer tests and turbocharger gas stand measurements and
other dedicated component measurements.
Lars Eriksson, Tobias Lindell, Oskar Leufven and Andreas Thomasson
2012
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Last updated: 2021-11-10
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