Abstract
This work is based on the standpoint that cycle-to-cycle combustion variations in spark-ignition engines under conditions of constant speed and load can result from the interplay of a chaotic dynamics of engine systems and a stochastic process. We propose a method to stabilize the chaotic behavior of the engine systems by adopting Pyragas' method for controlling chaos, and apply this method to an actual engine system in the idle state. The experimental results suggest that this method may stabilize the chaotic behavior to a periodic one.
