This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Encoderless Data Acquisition System Applied to the Combustion Analysis of an Engine Operating on HCCI Combustion Mode
Technical Paper
2017-36-0427
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Internal Combustion Engines (ICE) have their use highly disseminated in the most diverse operations. Exhaust gaseous emissions and fuel consumption have been on the scope for decades and therefore the necessity for research on more efficient and lower exhaust emission engines has increased. Considering the cost of equipment and software to develop ICE, the use of computational models is a key strategy to evaluate the behavior of the powertrain/vehicle and lower the instrumentation cost. In this sense, the present work shows the development of an algorithm to obtain a high-resolution crank angle (CA) position of an engine by means of a toothed wheel instead of a high-resolution incremental or absolute encoder. As a result, it enabled the analysis of performance and combustion parameters based on in-cylinder pressure signals acquired through a piezoelectric pressure transducer and the angular position of the crank train referenced by a Hall Effect sensor. The algorithm was built on MATLAB® and was used to generate the reference CA to the pressure signal. This data was compared to the standard results referenced by an incremental encoder with a 3600 pulses per revolution (0.1 degree/pulse). The top dead center position was found by means of thermodynamic calculations and compared to the mechanical reference. The in-cylinder pressure was dynamically pegged to the averaged intake manifold pressure, while the ratio of specific heats (gamma) was individually calculated for compression and expansion strokes. The data acquisition resolution was enhanced by digitally dividing the 60-2 toothed wheel into 3600 intervals. The comparison between the indicated mean effective pressure obtained by this means and that acquired through the commercial data acquisition system demonstrated a coefficient of correlation higher than 99% averaged on 100 consecutive cycles.
Authors
Topic
Citation
Aronis, A., Cogo, V., Nora, M., Martins, M. et al., "Encoderless Data Acquisition System Applied to the Combustion Analysis of an Engine Operating on HCCI Combustion Mode," SAE Technical Paper 2017-36-0427, 2017, https://doi.org/10.4271/2017-36-0427.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Thakur , A. K. , Kaviti , A. K. , Mehra , M. , Mer , K.K.S. Progress in performance analysis of ethanol-gasoline blends on SI engine Renewable and Sustainable Energy Reviews 69 2017 324 340 2017
- Caliskan , H. Environmental and enviroeconomic researches on diesel engines with diesel and biodiesel fuels Journal of Cleaner Production 154 2017 125 129 2017
- Lin , H. , Ding , K. A new method for measuring engine rotational speed based on the vibration and discrete spectrum correction technique Measurement 46 2013 2056 2064 2013
- Resor , B. R. , Trethewey , M. W. , Maynard , K. P. Compensation for encoder geometry and shaft speed variation in time interval torsional vibration measurement Journal of Sound and Vibration 286 2005 897 920 2004
- Martins , M. , Fischer , I. , Gusberti , F. , Sari , R. et al. HCCI of Wet Ethanol on a Dedicated Cylinder of a Diesel Engine SAE Technical Paper 2017-01-0733 2017 10.4271/2017-01-0733
- Chang , H. , Zhang , Y. , Chen , L. An applied thermodynamic method for correction of TDC in the indicator diagram and its experimental confirmation Applied Thermal Engineering 25 2005 759 768 2005
- Heywood , J. B. Internal Combustion Engine Fundamentals McGraw Hill New York 1988
- Alaugumalai , A. Combustion characteristics of lemongrass ( Cymbopogon flexuosus ) oil in a partial premixed charge compression ignition engine Alexandria Engineering Journal 54 2015 405 413 2015
- Abbaszadehmosayebi , G. and Ganippa , L. Determination of specific heat ratio and error analysis for engine heat release calculations Appl. Energy 122 143 150 2014 10.1016/j.apenergy.2014.01.028
- Canakci , M. , Ozsezen , A.N. , and Turkcan , A. Combustion analysis of preheated crude sunflower oil in an IDI diesel engine Biomass Bioenergy 33 5 760 767 2009 10.1016/j.biombioe.2008.11.003
- Zhao , H. , Landommatos , N. Engine Combustion Instrumentation and Diagnostics Society of Automotive Engineers Warrendale, PA 2001