Identification of Engine Operation States Using Advanced Signal Analysis Methods

The article provides a discussion concerning the potential for applying advanced methods of vibroacoustic signal processing for the purposes of identification of a combustion engine state. It contains example results of vibration measurements on the passenger car combustion engine in three directions. The research was conducted on stopping vehicle, for different pre-set values of the engine rotational speed. The results of preliminary tests focused on the potential use in the diagnostics of engine operation.