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Cycle-to-Cycle Fluctuations of Burned Fuel Mass in Spark Ignition Combustion Engines

M. Wendeker·G. Litak·M. Krupa
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Abstract

We examine a simple, fuel-air, model of combustion in spark ignition (si) engine with indirect injection. In our two fluid model, variations of fuel mass burned in cycle sequences appear due to stochastic fluctuations of a fuel feed amount. We have shown that a small amplitude of these fluctuations affects considerably the stability of a combustion process strongly depending on the quality of air-fulel mixture. The largest influence was found in the limit of a lean combustion. The possible effect of nonlinearities in the combustion process were also discussed.

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M. Wendeker, G. Litak, M. Krupa. 2003-12-28. Cycle-to-Cycle Fluctuations of Burned Fuel Mass in Spark Ignition Combustion Engines. https://arxiv.org/abs/nlin/0312068

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