Controlling Engine System : a Low-Dimensional Dynamics in a Spark Ignition Engine of a Motorcycle

摘要

We analyze a time series of the combustion pressure in the idle state, measured from a sparkignition engine of a motorcycle. It is clarified that the engine system can be described by a lowdimensionaldeterministic dynamics perturbed by some stochastic process.We also propose a methodto stabilize the chaotic behaviour of engine’s data by adopting the Pyragas’ method. We actually usethis method in a computer experiment for the control of combustion pressure data to demonstrate theefficiency of the proposed method. As a result of the experiment, we eliminate the fluctuations in thecombustion pressure data and obtain a periodic orbit.