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

Journal Article
2013-32-9041
ISSN: 1946-3936, e-ISSN: 1946-3944
Published October 15, 2013 by Society of Automotive Engineers of Japan in Japan
Reduced-Order Modeling of Intake Air Dynamics in Single-Cylinder Four-Stroke Engine
Sector:
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.
Language: English

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.