Reduced-Order Modeling of Intake Air Dynamics in Single-Cylinder Four-Stroke Engine

Paper #:
  • 2013-32-9041

Published:
  • 2013-10-15
DOI:
  • 10.4271/2013-32-9041
Citation:
Akama, S., Murayama, Y., and Sakoda, S., "Reduced-Order Modeling of Intake Air Dynamics in Single-Cylinder Four-Stroke Engine," SAE Int. J. Engines 6(4):2092-2099, 2013, https://doi.org/10.4271/2013-32-9041.
Pages:
8
Abstract:
This study deals with reduced-order modeling of intake air dynamics in single-cylinder four-stroke naturally-aspirated spark-ignited engines without surge tanks. It provides an approximate calculation method for embedded micro computers to estimate intake manifold pressures in real time. The calculation method is also applicable to multi-cylinder engines with individual throttle bodies since the engines can be equated with parallelization of the single-cylinder engines. In this paper, we illustrate the intake air dynamics, describe a method to estimate the intake manifold pressures, and show experimental results of the method.
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