This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Non-Intrusive In-Cylinder Pressure Measurement of Internal Combustion Engines
Technical Paper
1999-01-0544
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The monitoring of in-cylinder pressure on internal combustion engines is a costly and intrusive process. Current methods include high cost, miniature pressure transducers mounted in the cylinder head. The transducers have direct access to cylinder pressure, and give a high degree of accuracy. The disadvantage of using this intrusive method is the cost of the sensors and modification of the cylinder head. The monitoring of in-cylinder pressure is usually restricted to research engines or large marine diesels. However, the information carried in the pressure trace is significant and is of benefit in condition monitoring and control.
The aim of this research is to produce low cost, non-intrusive sensors to enable the monitoring of in-cylinder pressure, on internal combustion engines. This would enable the use of pressure information to be extended into small in-service internal combustion engines.
Preliminary results are very encouraging and show a high correlation between the non-intrusive sensors, and the in-cylinder pressure transducers.
This paper details the development of the sensors, instrumentation, algorithms and shows the preliminary results.
The conclusions drawn in this paper are that a system for the measurement of in-cylinder pressure using low cost non-intrusive sensors is achievable. The results from this work has shown that the integration of real-time pressure information into the control system is now possible using low cost components.
Recommended Content
Technical Paper | In-Cylinder Pressure Estimation from Structure-Borne Sound |
Technical Paper | A Cylinder Pressure Sensor for Spark Advance Control and Knock Detection |
Technical Paper | Soft Computing Mass Air Flow Estimator for a Single-Cylinder SI Engine |
Authors
Citation
Mobley, C., "Non-Intrusive In-Cylinder Pressure Measurement of Internal Combustion Engines," SAE Technical Paper 1999-01-0544, 1999, https://doi.org/10.4271/1999-01-0544.Also In
Electronic Engine Controls 1999: Sensors, Actuators, and Development Tools
Number: SP-1418; Published: 1999-03-01
Number: SP-1418; Published: 1999-03-01
References
- Glibbery, R.J. “Correlation between detonation, pressure and vibration in a petrol engine” Institute of Sound and Vibration Research, Southampton University 1987
- Ordubadi, A. “Fault detection in internal combustion engines using an acoustic signal” SAE Paper 820365 Proceedings of Engine Noise Symposium, International Congress and Exposition (of the SAE) Detroit, Michigan February 22-26 1982
- Kirkman E.T.F Elliott C. “Condition monitoring of marine engineering equipment using neural computing” The Institute of Marine Engineers Transactions 107 1995
- Morgan Matroc Limited Thornhill, Southampton, Hampshire, SO19 7TG, UK