This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Indirect Estimation of In-Cylinder Pressure through the Stress Analysis of an Engine Stud
Technical Paper
2016-01-0814
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The increase of performance has always been a key topic of the research activities on the internal combustion engines. Nowadays this is even truer as the performance is strictly correlated to the pollutant emissions. In this sense, an interesting approach could be the improvement of the effectiveness of engine control system and optimize the combustion process. To pursue this goal it would be very important to know the in-cylinder pressure during engine operation. The measurement of this quantity is performed generally with a pressure sensor flush mounted on the cylinder head. The measurement is very accurate, but the severe ambient conditions strongly limit the lifetime of these sensors, which, therefore, are not well suited to act as a feedback to the control system of on-road engines. Even though several approaches to measure indirectly the in-cylinder pressure have been developed, their diffusion is still hampered by reliability and sturdiness problems. To overcome these issues, an innovative methodology to measure the in-cylinder pressure has been conceived and tested on a two strokes single cylinder engine. The proposed approach was based on the analysis of the mechanical stress of the engine studs. Particular attention was paid to the signal processing and elaboration (based on a neural network architecture) to obtain a reliable in-cylinder pressure description.
Authors
Citation
Romani, L., Lenzi, G., Ferrari, L., and Ferrara, G., "Indirect Estimation of In-Cylinder Pressure through the Stress Analysis of an Engine Stud," SAE Technical Paper 2016-01-0814, 2016, https://doi.org/10.4271/2016-01-0814.Also In
References
- Pestana , G. Engine Control Methods Using Combustion Pressure Feedback SAE Technical Paper 890758 1989 10.4271/890758
- Wibberley , P. and Clark , C. An Investigation of Cylinder Pressure as Feedback for Control of Internal Combustion Engines SAE Technical Paper 890396 1989 10.4271/890396
- Zhang , H. , Du , L. and Shi , X. Reconstructing cylinder pressure from vibration signals based on radial basis function networks Proceedings of the Institution of Mechanical Engineers Part D-Journal of Automobile Engineering 2001 10.1243/0954407011528338
- Gao , Y. and Randall , R., B. Reconstruction of diesel engine cylinder pressure using a time domain smoothing technique Mechanical Systems and Signal Processing 1999
- El-Ghamry , M. , Steel , J. and Reuben , R. Indirect measurement of cylinder pressure from diesel engines using acoustic emission Mechanical Systems and Signal Processing 2004
- Sellnau , M. , Matekunas , F. , Battiston , P. , Chang , C. et al. Cylinder-Pressure-Based Engine Control Using Pressure-Ratio-Management and Low-Cost Non-Intrusive Cylinder Pressure Sensors SAE Technical Paper 2000-01-0932 2000 10.4271/2000-01-0932
- Liu , F. , Amaratunga , G. , Collings , N. , and Soliman , A. An Experimental Study on Engine Dynamics Model Based In-Cylinder Pressure Estimation SAE Technical Paper 2012-01-0896 2012 10.4271/2012-01-0896
- Antoni , J. , Randall , R. , and Guillet , F. Indirect Reconstruction of ICE pressure trace through structural vibration inverse filtering International Congress and Exhibition on Noise Control Engineering 2000
- Jia , Libin , Blough , Jason R. , Naber , Jeffrey D. , Zekavat , Seyed A. 2014 Accelerometer-Based Combustion Metrics Reconstruction With Radial Basis Function Neural Network for a 9 L Diesel Engine Journal of Engineering for Gas Turbines and Power 13 3 March 1 2014 10.1115/1.4025886
- Fleming , W., J. New automotive sensors-a review IEEE Sensors Journal 8 11 1900 1921 2008
- Moskwa , J. and Bucheger D. A new methodology for use in engine diagnostics and control, utilizing ‘‘synthetic’’ engine variables: theoretical and experimental results Journal of Dynamic Systems 2001
- Moro , D. , Cavina N. and Ponti , P. In-cylinder Pressure Reconstruction Based on Instantaneous Engine Speed Signal J. Eng. Gas Turbines Power 124 1 220 225 2001 10.1115/1.1391430
- Bengtsson , F. Estimation of Indicated - and Load - Torque from Engine Speed Variations Master’s thesis Linkoping University 2006
- El-Ghamry , M. , Steel , J. , and Reuben , R. Indirect measurement of cylinder pressure from diesel engines using acoustic emission Mechanical Systems and Signal Processing 19 2005 751 765 10.1016/j.ymssp.2004.09.004
- Frelund , A., R. Engine Combustion Chamber Pressure Sensor US Patent 4,601,196 1986
- Sellnau , M. Combustion Pressure Sensor US Patent 4,969,352 1990
- Sellnau , M. Non-Intrusive Cylinder Pressure Sensor Having Improved Response Characteristics US Patent 5,367,904 1994
- Sawamoto , K. Combustion Pressure Sensor Arrangement US Patent 4,602,506 1986
- Heywood , J., B. The two-stroke cycle engine SAE international 1999
- Romani , L. , Vichi , G. , Ferrara , G. , Balduzzi , F. et al. Development of a Low Pressure Direct Injection System for a Small 2S Engine. Part II - Experimental Analysis of the Engine Performance and Pollutant Emissions SAE Technical Paper 2015-01-1730 2015 10.4271/2015-01-1730
- Zurada Introduction to artificial neural systems West publishing company 1992