文章基本信息

标题：Determining the Initial In-Cylinder Gas State Based on Semi-Physical Models
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作者：S. Zydek ; S. Zydek ; D. Casper 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2016
卷号：49
期号：11
页码：454-460
DOI：10.1016/j.ifacol.2016.08.067
语种：English
出版社：Elsevier
摘要：Abstract Two methodologies are presented for modeling the initial in-cylinder gas state prior to the combustion. The first method is based on measured in-cylinder pressure data and allows the cylinder individual calculation of the gas mass and temperature. A physical equation for the online calculation of the polytropic exponent during the compression stroke is derived in order to receive accurate absolute pressure data from piezo based in-cylinder pressure sensors. In order to model the in-cylinder temperature an additional semi physical model is proposed to account for the heat input during the intake stroke. From the first methodology a second semi-physical model for the average in-cylinder gas mass and temperature is derived which will only need cylinder pressure data for the calibration process of the experimental model.
关键词：Keywordscylindergas masstemperaturesemi-physicalmodelenginepolytropic exponent