Experimental Investigation of Cyclic Variation in a Diesel Engine Using Wavelets

  • Rakesh Kumar Maurya
  • Mohit Raj Saxena
  • Nekkanti Akhil
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 384)


In this study, cyclic variations of combustion parameters (IMEP and THR) are analyzed using morlet wavelet transform in a diesel engine. Experiments were conducted at 1500 rpm for different engine load conditions and compression ratios. Combustion parameters were calculated from measured cylinder pressure trace. In-cylinder pressure data of 2500 consecutive engine cycles were acquired and processed for the analysis of cyclic variations. Results revealed that cyclic variability in THR decreases with increase in engine load and compression ratio. Cyclic variability is highest in idle load conditions at lowest compression ratio. Low frequency cyclic variations are observed at low loads conditions and with increase in engine load variations shift to high frequency range. Results can be utilized for the development of effective engine control strategies.


Diesel engine Wavelets Cyclic variability IMEP Heat release 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Heywood, J.B.: Internal Combustion Engines Fundamentals. McGraw Hill Education, New York (1988)Google Scholar
  2. 2.
    Atkins, R.D.: An Introduction to Engine Testing and Development. SAE International, USA (2009)CrossRefGoogle Scholar
  3. 3.
    Leonhardt, S., Muller, N., Isermann, R.: Methods for engine supervision and control based on cylinder pressure information. Mechatronics, IEEE/ASME 4(3), 235–245 (1999)CrossRefGoogle Scholar
  4. 4.
    Huang, B., Hu, E., Huang, Z., Zheng, J., Liu, B., et al.: Cycle-by-cycle variations in a spark ignition engine fueled with natural gas–hydrogen blends combined with EGR. Int. J. Hydrogen Energ. 34, 8405–8414 (2009)CrossRefGoogle Scholar
  5. 5.
    Zhang, H.G., Han, X.J., Yao, B.F., Li, G.X.: Study on the effect of engine operation parameters on cyclic combustion variations and correlation coefficient between the pressure-related parameters of a CNG engine. Appl. Energ. 104, 992–1002 (2013)CrossRefGoogle Scholar
  6. 6.
    Reyes, M., Tinaut, F.V., Giménez, B., Pérez, A.: Characterization of cycle-to-cycle variations in a natural gas spark ignition engine. Fuel 140, 752–761 (2015)CrossRefGoogle Scholar
  7. 7.
    Gürbüz, H., Akçay, I.H., Buran, D.: An investigation on effect of in-cylinder swirl flow on performance, combustion and cyclic variations in hydrogen fuelled spark ignition engine. J. Energy Inst. 87, 1–10 (2014)CrossRefGoogle Scholar
  8. 8.
    Rakopoulos, D.C., Rakopoulos, C.D., Giakoumis, E.G., Dimaratos, A.M.: Studying combustion and cyclic irregularity of diethyl ether as supplement fuel in diesel engine. Fuel 109, 325–335 (2013)CrossRefGoogle Scholar
  9. 9.
    Wang, Y., Xiao, F., Zhao, Y., Li, D., Lei, X.: Study on cycle-by-cycle variations in a diesel engine with dimethyl ether as port premixing fuel. Appl. Energ. 143, 58–70 (2015)CrossRefGoogle Scholar
  10. 10.
    Maurya, R.K., Agarwal, A.K.: Experimental investigation on the effect of intake air temperature and air–fuel ratio on cycle-to-cycle variations of HCCI combustion and performance parameters. Appl. Energ. 88, 1153–1163 (2011)CrossRefGoogle Scholar
  11. 11.
    Maurya, R.K., Agarwal, A.K.: Statistical analysis of the cyclic variations of heat release parameters in HCCI combustion of methanol and gasoline. Appl. Energ. 89, 228–236 (2012)CrossRefGoogle Scholar
  12. 12.
    Maurya, R.K., Agarwal, A.K.: Experimental investigation of cyclic variations in HCCI combustion parameters for gasoline like fuels using statistical methods. Appl. Energ. 111, 310–323 (2013)CrossRefGoogle Scholar
  13. 13.
    Daily, J.W.: Cycle-to-cycle variations: a chaotic process. Combust. Sci. Technol. 57, 149–162 (1988)CrossRefGoogle Scholar
  14. 14.
    Daw, C.S., Finney, C.E.A., Green, J.B., Kennel, M.B., Thomas, J.F., et al.: A simple model for cyclic variations in a spark ignition engine, SAE Paper 962086 (1996)Google Scholar
  15. 15.
    Daw, C.S., Finney, C.E.A., Kennel, M.B., Connelly, F.T.: Observing and modeling nonlinear dynamics in an internal combustion engine. Phys. Rev. E 57, 2811–2819 (1998)CrossRefGoogle Scholar
  16. 16.
    Foakes, A.P., Pollard, D.C.: Investigation of a chaotic mechanism for cycle-to-cycle variations. Combust. Sci. Technol. 90, 281–287 (1993)CrossRefGoogle Scholar
  17. 17.
    Sen, A.K., Litak, G., Taccani, R., Radu, R.: Wavelet analysis of cycle-to-cycle pressure variations in an internal combustion engine. Chaos, Solitons & Fractals 38(3), 886–893 (2008)CrossRefGoogle Scholar
  18. 18.
    Tily, R., Brace, C.J.: Analysis of cyclic variability in combustion in internal combustion engines using wavelets. Proceedings of the Institution of Me-chanical Engineers. Part D: Journal of Automobile Engineering 225(3), 341–353 (2011)Google Scholar
  19. 19.
    Sen, A.K., Longwic, R., Litak, G., Górski, K.: Analysis of cycle-to-cycle pressure oscillations in a diesel engine. Mech. Syst. Signal Pr. 22(2), 362–373 (2008)CrossRefGoogle Scholar
  20. 20.
    Shoji, T.: Effect of Cycle-to-Cycle Variations in Spray Characteristics on Hydrocarbon Emission in DI Diesel Engines: Visualization of Sac Inner Flow, Needle Valve Motion and Cycle-to-Cycle Variations in Diesel Spray. JSME Int. J. B 40(2), 312–319 (1997)CrossRefGoogle Scholar
  21. 21.
    Maurya, R.K., Agarwal, A.K.: Experimental Investigation of Effect of Intake Air Temperature and Mixture Quality on Combustion of Methanol and Gasoline Fuelled HCCI Engine. Journal of Automobile Engineering, Proceedings of IMechE, Part-D 223(11), 1445–1458 (2009)CrossRefGoogle Scholar
  22. 22.
  23. 23.
    Wu, S., Liu, Q.: Some problems on the global wavelet spectrum. Journal of Ocean University of China 4(4), 398–402 (2005)CrossRefGoogle Scholar
  24. 24.
    Longwic, R., Sen, A.K., Górski, K., Lotko, W., Litak, G.: Cycle-to-Cycle Variation of the Combustion Process in a Diesel Engine Powered by Different Fuels. Journal of Vibroengineering 13(1), 120–127 (2011)Google Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Rakesh Kumar Maurya
    • 1
  • Mohit Raj Saxena
    • 1
  • Nekkanti Akhil
    • 1
  1. 1.Indian Institute of Technology RoparRupnagarIndia

Personalised recommendations