This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of Cylinder Pressure Measurement Accuracy for Internal Combustion Engine Control
Technical Paper
2017-01-1067
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
With the tightening requirements on engine emission and performance, pressure based combustion controls are becoming common in medium speed large bore reciprocating internal combustion engines. The accuracy of the cylinder pressure data including the raw pressure value at its corresponding crank angle, has a vital impact on engine controllability. For instance, this work shows that a 1-bar pressure offset leads to a 0.6% variation in the total heat release (THR) while the 50% heat release crank angle (CA50) can be shifted by 1.5 degrees. Similarly, with a single degree error in the crank position, the indicated mean effective pressure (IMEP) gets a 1.8 bar error. Thus, in this work the typical errors for cylinder pressure measurement are reviewed and analyzed for large bore four stroke marine and power plant production engines.
The main sources of error for pressure measurement are thermal shock and installation defects. Meanwhile, calibration is carried out for ten production pressure transducers to provide a general accuracy result of the pressure transducers that are used in production engines.
The main sources of error for crank angle position monitoring - when done with a flywheel-based inductive system, manufacturing tolerance, installation, and the relative displacement between the pickups and the shaft due to shaft bending, shaft longitudinal movement, torsional vibration and engine block vibration are the main sources of error.
In this paper, those errors are quantified individually through simulation and their impacts on IMEP and CA50 are also presented. At last, cylinder volume deformation and its impact on combustion diagnostics are also estimated. From the result it is concluded that torsional vibration and cylinder volume deformation have the most significant effects for combustion analysis.
Recommended Content
Technical Paper | Ignition Delay in Diesel Engines |
Technical Paper | Fuel-Air Mixing and Diesel Combustion in a Rapid Compression Machine |
Journal Article | The Effect of Fuel Temperature on Particulate Matter Formation in Gasoline Direct-Injection Engines |
Authors
Citation
Storm, X., Salminen, H., Virrankoski, R., Niemi, S. et al., "Analysis of Cylinder Pressure Measurement Accuracy for Internal Combustion Engine Control," SAE Technical Paper 2017-01-1067, 2017, https://doi.org/10.4271/2017-01-1067.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 | ||
Unnamed Dataset 6 | ||
Unnamed Dataset 7 | ||
Unnamed Dataset 8 | ||
Unnamed Dataset 9 |
Also In
References
- Hellen J. Gas engine control based on integrated cylinder pressure measurement Master's Thesis Helsinki University of Technology 2008
- Rebecchi P. Fundamentals of thermodynamic for pressure-based low-temperature premixed diesel combustion control Ph.D. Thesis Institut für Verbrennungsmotoren und Kraftfahrwesen der Universität Stuttgart 2013
- Rogers , D. Engine Combustion: Pressure Measurement and Analysis Warrendale SAE International 2010 10.4271/R-388
- Shiqiao Q. ; Zongsheng H. ; and Xingshu W. Optical Angular Encoder Installation Error Measurement and Calibration by Ring Laser Gyroscope IEEE Transactions on Instrumentation and Mesaurement 59 3 506 511 2010 10.1109/TIM.2009.2022104
- Miljić , N. , Popović , S. , Kitanović M. Engine Crankshaft Speed Measurement error Compensation MVM - Mobility Vehicle Mechanics 41 3 41 51 2015
- Maurya R.K. , Pal D.D. , Agarwal A.K. Digital signal processing of cylinder pressure data for combustion diagnostics of HCCI engine Mechanical Systems and Signal Processing 36 2013 95 109 2011 10.1016/j.ymssp.2011.07.014
- Davis , R. and Patterson , G. Cylinder Pressure Data Quality Checks and Procedures to Maximize Data Accuracy SAE Technical Paper 2006-01-1346 2006 10.4271/2006-01-1346
- Stank , J. D. Analysis of in-cylinder pressure transducer data quality utilizing a SIDI turbocharged engine Master's Thesis Michigan Technological University 2011
- Bueno Andre V. , Velasquez Jose A. and Milanez Luiz F. Internal Combustion Engine Indicating Measurements Zahurul Haq Prof. InTech http://www.intechopen.com/books/applied-measurement-systems/internal-combustion-engine-indicating-measurements 2012 10.5772/37889
- Lee , S. , Bae , C. , Prucka , R. , Fernandes , G. et al. Quantification of Thermal Shock in a Piezoelectric Pressure Transducer SAE Technical Paper 2005-01-2092 2005 10.4271/2005-01-2092
- Bertola A. , Stadler J. , Walter T. , Wolfer P., C. et al. Pressure sensors, Pressure indication during knocking conditions Kistler Instruments AG https://www.kistler.com/?type=669&fid=169&model=download 2006
- JCGM Evaluation of measurement data-Guide to the expression of uncertainty in measurement September 2008
- Accreditation, American Association for Laboratory G104 - Guide for Estimation of Measurement Uncertainty in Testing December 4 2014
- Daniel J. ; Erik F. ; Mattias K. A flywheel error compensation algorithm for engine misfire detection Contron Engineering Practice 47 37 47 2015 10.1016/j.conengprac.2015.12.009
- Bucak , İ. Ö. Position Error Compensation via a Variable Reluctance Sensor Applied to a Hybrid Vehicle Electric Machine Sensors 10 1918 1934 2010 10.3390/s100301918
- Lutowicz , M. Unsteady Angular Speed of Diesel Engine Crankshaft Preliminary Examination KONES Powertrain and Transport 19 4 394 399 2012
- Farzin H. M. , Ali F. Stress Analysis and Optimization of Crankshafts Subject to Dynamic Loading http://www.recycle-steel.org/~/media/Files/Autosteel/Programs/LongProducts/crankshaft_full_report_2.pdf August 2007
- Stadler J. , Ciecinski M. , Wimmer A. et al. Influence of Crankshaft Torsion on Cylinder Pressure Diagnostics MTZ Industrial 5 1 58 65 2015 10.1007/s40353-015-0511-z