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Experimental Study of Combustion Fluctuation Reduction Using In-Cylinder Pressure Estimation in Gasoline Engine

Ichiyanagi, Mitsuhisa and Willyanto, and Dzieminska, Edyta and Suzuki, Takashi (2018) Experimental Study of Combustion Fluctuation Reduction Using In-Cylinder Pressure Estimation in Gasoline Engine. International Journal of Industrial Research and Applied Engineering, 3 (2). pp. 51-60. ISSN 2407-7259

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        Abstract

        Gasoline engines needs to reduce its negative emission waste and raise its thermal efficiency. Previous studies have shown an improvement of engines by regulating the ignition timing and retaining the engine at certain air-to-fuel ratio. Additional development of the thermal efficiency is anticipated by reducing the oscillation of pressure due to combustion (referred to as combustion fluctuation) during each cycle. Reducing the combustion fluctuations promotes the generation of a stable combustion field and improves fuel consumption. Since the combustion fluctuations are significantly affected by the in-cylinder pressure at compression top dead center (referred to as TDC pressure), the present study proposes a method to estimate the TDC pressure in the next cycle. The estimation was conducted by measuring the in-cylinder pressure at exhaust valve opening in the given cycle. This study also developed the method to reduce the combustion fluctuations by using the TDC pressure estimation and controlling the ignition timing. In our experiments, it was found that the developed methods reduced the fluctuations of the indicated mean effective pressure (IMEP), the maximum in-cylinder pressure, and the TDC pressure by 62.1%, 51.2%, and 38.5%, respectively.

        Item Type: Article
        Uncontrolled Keywords: Combustion Fluctuation, In-Cylinder Pressure, IMEP, Spark Ignition Engine, Ignition Timing Control.
        Subjects: T Technology > TJ Mechanical engineering and machinery
        Divisions: Faculty of Industrial Technology > Mechanical Engineering Department
        Depositing User: Admin
        Date Deposited: 15 Dec 2018 14:55
        Last Modified: 16 Jul 2019 05:47
        URI: http://repository.petra.ac.id/id/eprint/18049

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