In-Cylinder Pressure Analysis through Accelerometer Signal Processing for Diesel Engine Combustion Optimization

2009-01-2079

05/19/2009

Event
SAE 2009 Noise and Vibration Conference and Exhibition
Authors Abstract
Content
Many efforts are being currently devoted to the development of diagnostic techniques based on nonintrusive measurements aimed at defining the injection parameters able to optimize the combustion process.
Previous papers of the authors have demonstrated a direct relationship between in-cylinder pressure and engine block vibration signals. Besides, it was also shown sensitivity of the engine surface vibration to variation of injection parameters, when the accelerometer is placed in sensitive location of the engine block. Moreover, in the accelerometer signal, a frequency band in which such a relationship is very strict has been selected.
The aim of the present work is to establish a reliable relation between the main characteristics of the in-cylinder pressure curve and the vibration trend, by means of a deeper insight into the engine block signal. The final objective is to monitor the combustion behavior by means of a non-intrusive transducer.
In this paper, the experimental apparatus is at first described; then, the processing technique is presented and finally results are reported and discussed.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-2079
Pages
10
Citation
Arnone, L., Manelli, S., Chiatti, G., and Chiavola, O., "In-Cylinder Pressure Analysis through Accelerometer Signal Processing for Diesel Engine Combustion Optimization," SAE Technical Paper 2009-01-2079, 2009, https://doi.org/10.4271/2009-01-2079.
Additional Details
Publisher
Published
May 19, 2009
Product Code
2009-01-2079
Content Type
Technical Paper
Language
English