Nonperiodic Oscillations of Pressure in a Spark Ignition Engine

Details Nonperiodic Oscillations of Pressure in a Spark Ignition Engine Nonperiodic Oscillations of Pressure in a Spark Ignition Engine

2003-02-19

arxiv.org/abs/nlin/0302046v1

Nonlinear Sciences

Chaotic Dynamics

Latex, 6 pages, 5 figures

Scientific paper

We report our results on non-periodic experimental time series of pressure in a spark ignition engine. The experiments were performed for a low rotational velocity of a crankshaft and a relatively large spark advance angle. We show that the combustion process has many chaotic features. Surprisingly, the reconstructed attractor has a characteristic butterfly shape similar to a chaotic attractor of Lorentz type. The suitable recurrence plot shows that the dynamics of the combustion is a nonlinear multidimensional process mediated by stochastic noise.

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