A Genetic Algorithm for Determining Cylinder Pressure in Internal Combustion Engines

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• 作者：Fernando Cruz-Peragó ; n ; Francisco J. Jimé ; nez-Espadafor
• 刊名：Energy & Fuels
• 出版年：2007
• 出版时间：September 2007
• 年：2007
• 卷：21
• 期：5
• 页码：2600 - 2607
• 全文大小：204K
• 年卷期：v.21,no.5(September 2007)
• ISSN：1520-5029

文摘

In this paper, a genetic-algorithm- (GA-) based method has been developed to determine the instantaneouspressure in cylinders of internal combustion engines. Some parameters associated with a pressure curve ineach cylinder are optimized from two validated submodels which reproduce the engine behavior using a geneticalgorithm. In this process, the profile of both measured and modeled instantaneous angular speeds of theengine are compared. According to a typical design of a genetic algorithm, different operators, such as theselection process, crossover, and mutation, have been evaluated and applied over theoretical data. The bestresults define the adopted GA structure, and it is applied to three different engines: single-cylinder dieselengine(DE), three-cylinder spark ignition engine, and a 16-cylinder vee power plant diesel engine. This algorithmmakes it possible to estimate a good quality pressure profile in cylinders for any kind of engine (operationbasis and the number and disposition of cylinders), using indirect measurements and low-cost equipment.