[23] E. Hellström, A. G. Stefanopoulou, and L. Jiang. Cyclic variability and dynamical instabilities in autoignition engines with high residuals. IEEE Transactions on Control Systems Technology, 2013. To Appear. [ bib | DOI | pdf ]
[22] P. Gorzelic, E. Hellström, A. G. Stefanopoulou, and L. Jiang. Model-based feedback control for an automated transfer out of SI operation during SI to HCCI transitions in gasoline engines. In Proc. ASME Dynamic Systems and Control Conference, Fort Lauderdale, FL, USA, 2012. [ bib | pdf ]
[21] P. Gorzelic, E. Hellström, A. G. Stefanopoulou, L. Jiang, and S. Gopinath. A coordinated approach for throttle and wastegate control in turbocharged spark ignition engines. In Proc. 24th Chinese Control and Decision Conference, pages 1524-1529, Taiyuan, China, 2012. [ bib | DOI | pdf ]
[20] E. Hellström, J. Larimore, A. G. Stefanopoulou, J. Sterniak, and L. Jiang. Quantifying cyclic variability in a multi-cylinder HCCI engine with high residuals. Journal of Engineering for Gas Turbines and Power, 134(11):112803, 2012. [ bib | DOI | pdf ]
[19] E. Hellström, J. Larimore, A. G. Stefanopoulou, J. Sterniak, and L. Jiang. Quantifying cyclic variability in a multi-cylinder HCCI engine with high residuals. In ASME Internal Combustion Engine Division Spring Tecnical Conference, Torino, Italy, 2012. ICEF2012-81107. [ bib | pdf ]
[18] E. Hellström, A. G. Stefanopoulou, and L. Jiang. Reducing cyclic dispersion in autoignition combustion by controlling fuel injection timing. In Proc. 51st IEEE Conference on Decision and Control, Maui, HI, USA, 2012. [ bib | pdf ]
[17] E. Hellström, A. G. Stefanopoulou, J. Vávra, A. Babajimopoulos, D. Assanis, L. Jiang, and H. Yilmaz. Understanding the dynamic evolution of cyclic variability at the operating limits of HCCI engines with negative valve overlap. In SAE World Congress, number 2012-01-1106 in SAE Technical Paper Series, Detroit, MI, USA, 2012. [ bib | DOI | pdf ]
[16] E. Hellström, A. G. Stefanopoulou, J. Vávra, A. Babajimopoulos, D. Assanis, L. Jiang, and H. Yilmaz. Understanding the dynamic evolution of cyclic variability at the operating limits of HCCI engines with negative valve overlap. SAE International Journal of Engines, 5(3):995-1008, 2012. Also in SAE World Congress number 2012-01-1106 in SAE Technical Paper Series. [ bib | DOI | pdf ]
[15] S. Jade, E. Hellström, L. Jiang, and A. G. Stefanopoulou. Fuel governor augmented control of recompression HCCI combustion during large load transients. In Proc. American Control Conference, pages 2072-2077, Montréal, Canada, 2012. [ bib | pdf ]
[14] J. Larimore, E. Hellström, J. Sterniak, L. Jiang, and A. G. Stefanopoulou. Experiments and analysis of high cyclic variability at the operational limits of spark-assisted HCCI combustion. In Proc. American Control Conference, pages 2072-2077, Montréal, Canada, 2012. [ bib | pdf ]
[13] E. Hellström and A. G. Stefanopoulou. Modeling cyclic dispersion in autoignition combustion. In Proc. 50th IEEE Conference on Decision and Control, pages 6834-6839, Orlando, FL, USA, 2011. [ bib | DOI | pdf ]
[12] S. Jade, E. Hellström, A. G. Stefanopoulou, and L. Jiang. On the influence of composition on the thermally-dominant recompression HCCI combustion dynamics. In Proc. ASME Dynamic Systems and Control Conference, pages 677-684, Arlington, VA, USA, 2011. [ bib | DOI | pdf ]
[11] Donghoon Lee, Li Jiang, H. Yilmaz, and A.G. Stefanopoulou. Air charge control for turbocharged spark ignition engines with internal exhaust gas recirculation. In American Control Conference (ACC), 2010, pages 1471 -1476, 30 2010-july 2 2010. [ bib ]
[10] Donghoon Lee, A.G. Stefanopoulou, S. Makkapati, and M. Jankovic. Modeling and control of a heated air intake homogeneous charge compression ignition (hcci) engine. In American Control Conference (ACC), 2010, pages 3817 -3823, 30 2010-july 2 2010. [ bib ]
[9] C. J. Chiang and A. G. Stefanopoulou. Sensitivity analysis of combustion timing of homogeneous charge compression ignition gasoline engines. Journal of Dynamic Systems, Measurement and Control, 131(1):014506-014510, 2009. [ bib | pdf ]
[8] Chia-Jui Chiang, A. G. Stefanopoulou, and M. Jankovic. Nonlinear observer-based control of load transitions in homogeneous charge compression ignition engines. IEEE Transactions on Control Systems Technology, 15(3):438-448, May 2007. special issue in Control Applications in Automotive Engineering. [ bib | DOI | pdf ]
[7] Chia-Jui Chiang and A. G. Stefanopoulou. Stability analysis in homogeneous charge compression ignition (hcci) engines with high dilution. IEEE Transactions on Control Systems Technology, 15(2):209-219, March 2007. [ bib | DOI | pdf ]
[6] C. J. Chiang and A. G. Stefanopoulou. Dynamics of homogeneous charge compression ignition (hcci) engines with high dilution. In Proceedings of the American Control Conference, pages 2979-2984, 9-13 July 2007. [ bib | DOI | pdf ]
[5] C. J. Chiang and A. G. Stefanopoulou. Sensitivity analysis of combustion timing and duration of homogeneous charge compression ignition (hcci) engines. In Proc. American Control Conference, pages 1857-1862, 14-16 June 2006. [ bib | DOI | pdf ]
[4] D.J. Rausen, A.G. Stefanopoulou, J.A. Kang, J.-M.And Eng, and T.-W Kuo. A mean-value model for control of homogeneous charge compression ignition (hcci) engines. Transactions of the ASME. Journal of Dynamic Systems, Measurement and Control, 3(3):355-362, September 2005. [ bib | pdf ]
[3] C. J. Chiang and A. G. Stefanopoulou. Control of thermal ignition in gasoline engines. In Proc. American Control Conference the 2005, volume 6, pages 3847-3852, 8-10 June 2005. [ bib | DOI | pdf ]
[2] D. J. Rausen, A. G. Stefanopoulou, J. M. Kang, J. A. Eng, and T. W. Kuo. A mean-value model for control of homogeneous charge compression ignition (hcci) engines. In Proceedings of the American Control Conference, volume 1, pages 125-131, 30 June-2 July 2004. [ bib | pdf ]
[1] C. J. Chiang and A. G. Stefanopoulou. Steady-state multiplicity and stability of thermal equilibria in homogeneous charge compression ignition (hcci) engines. In Proceedings of the 43rd IEEE Conference on Decision and Control, volume 2, pages 1676-1681, 14-17 Dec. 2004. [ bib | pdf ]