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首页> 外文期刊>Mathematical Problems in Engineering: Theory, Methods and Applications >Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power
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Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power

机译：Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power

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摘要

In the work, the suitable volumetric efficiency is very important for the gasoline engine to achieve the aim of energy-saving and emission reduction. Thus, the intake system characteristics, such as intake manifold length, diameter, volumetric efficiency, and valve phase, should be investigated in detail. In order to investigate the performance optimization of the engine intake system, an optimization model of the engine intake system is developed by the GT-Power coupled with Matlab-Simulink and validated by the experimental results under the different conditions at full load. The engine power-, torque-, and brake-specific fuel consumption are defined as the result variables of the optimization model, and the length and diameter of the intake manifold are defined as the independent variables of the model. The results show that the length of intake manifold has little influence on the engine power and BSFC, and the length of intake manifold has a great impact on the performance index at high speed. In addition, the engine volumetric efficiency is the highest when the length of intake manifold is in the range of 240 and 250 mm. The engine BSFC improved by variable valve timing is significant compared with the original result. Finally, the improvement suggestions for the performance enhancement of the gasoline engine are proposed.

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    Jiang Feng; Li Minghai; Wen JiayanTan ZedanZhou Wenyun;

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    Dalian JiaoTong Univ, Internal Combust Engine Res Inst, Dalian 116028, Peoples R China;

    Guangxi Univ Sci & Technol, Coll Elect & Informat Engn, Liuzhou 545006, Peoples R China|Guangxi Key Lab Automobile Components & Vehicle T, Liuzhou 545006, Peoples R China;

    Guangxi Univ Sci & Technol, Coll Elect & Informat Engn, Liuzhou 545006, Peoples R ChinaDalian JiaoTong Univ, Internal Combust Engine Res Inst, Dalian 116028, Peoples R China|Guangxi Univ Sci & Technol, Coll Elect & Informat Engn, Liuzhou 545006, Peoples R China|Guangxi Key Lab Automobile Components & Vehicle T, Liuzhou 545006, Peoples R Chi;

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