[56]	Patrick Gorzelic, Anna Stefanopoulou, and Jeff Sterniak. Si-hcci mode transitions without open-loop sequence scheduling: Online parameter adaptation. ASME Journal Dynamic Systems Control and Measurements, 139(8), 2017. [ bib | DOI | pdf ]
[55]	Patrick Gorzelic, Anna Stefanopoulou, and Jeff Sterniak. Si-hcci mode transitions without open-loop sequence scheduling: Control architecture and experimental validation. ASME Journal Dynamic Systems Control and Measurements, 139(8), 2017. [ bib | DOI | pdf ]
[54]	H. Lian, J. B. Martz, B. P. Maldonado, A. G. Stefanopoulou, K. Zaseck, J. Wilkie, O. Nitulescu, and M. Ehara. Prediction of flame burning velocity at early flame development time with high exhaust gas recirculation and spark advance. J. Eng. Gas Turbines Power, 139(8), 2017. [ bib | DOI | pdf ]
[53]	Bryan P. Maldonado, Huan Lian, Jason B. Martz, Anna G. Stefanopoulou, Kevin Zaseck, and Eiki Kitagawa. Combustion shaping using multivariable feedback control. In 2017 American Control Conference (ACC), pages 4760-4765, 2017. [ bib | DOI | pdf ]
[52]	Bryan P. Maldonado and Anna G. Stefanopoulou. Cycle-to-cycle feedback for combustion control of spark advance at the misfire limit. In 2017 ASME Internal Combustion Engine Fall Technical Conference (ICEF), 2017. [ bib ]
[51]	Sandro Nüesch and Anna G. Stefanopoulou. Multimode combustion in a mild hybrid electric vehicle. part 2: Three-way catalyst considerations. Control Engineering Practice, 58:107-117, 2017. [ bib | DOI | pdf ]
[50]	R. Salehi, J. Martz, A. Stefanopoulou, B. Vernham, L Uppalapati, and B. P. Baliga. Decentralized feedback control of pumping losses and nox emissions in diesel engines. In 2017 ASME Internal Combustion Engine Fall Technical Conference (ICEF), 2017. [ bib ]
[49]	Sandro Nüesch and Anna G. Stefanopoulou. Multimode combustion in a mild hybrid electric vehicle. part 1: Supervisory control. Control Engineering Practice, 57:99-110, December 2016. [ bib | DOI | pdf ]
[48]	Shima Nazari, Anna Stefanopoulou, and Jason Martz. Minimum backpressure wastegate control for a boosted gasoline engine with low pressure external egr. In Proceedings of the ASME 2016 Dynamic Systems and Control Conference, number DSCC2016-9690, 2016. [ bib | DOI | pdf ]
[47]	S. Nüesch and A. Stefanopoulou. Mild hev with multimode combustion: Benefits of a small oxygen storage. In In IFAC-PapersOnLine, volume 49, pages 34-41, 2016. [ bib | DOI | pdf ]
[46]	S. Nüesch, P. Gorzelic, L. Jiang, J. Sterniak, and A. G. Stefanopoulou. Accounting for combustion mode switch dynamics and fuel penalities in drive cycle fuel economy. International Journal of Engine Research, 17(4):436-450, 2016. [ bib | DOI | pdf ]
[45]	H. Lian, J. Martz, N. Prakash, and A. Stefanopoulou. Fast computation of combustion phasing and its influence on classifying random or deterministic patterns. In Internal Combustion Engine Division Fall Technical Conference (ASME 2015 ICEF), number ICEF2015-1173. ASME, November 2015. [ bib | DOI | pdf ]
[44]	S. Nüesch and A. G. Stefanopoulou. Is it economical to ignore the driver? a case study on mulitmode combustion. In ASME Dynamic Systems and Control Conference (DSCC), number DSC2015-9875, October 2015. [ bib | DOI | pdf ]
[43]	N. Prakash, J. B. Martz, and A. G. Stefanopoulou. A phenomenological model for predicting the combustion phasing and variability of spark assisted compression ignition (saci) engines. In ASME Dynamic Systems and Control Conference (DSCC), number DSCC2015-9883, October 2015. [ bib | DOI | pdf ]
[42]	Rasoul Salehi and Anna G. Stefanopoulou. Effective component tuning in a diesel engine model using sensitivity analysis. In DSCC Conference Paper, number DSCC2015-9729, October 2015. [ bib | DOI | pdf ]
[41]	S. Jade, J. Larimore, E. Hellström, A.G. Stefanopoulou, and L. Jiang. Controlled load and speed transitions in a multicylinder recompression hcci engine. IEEE Transactions on Control Systems Technology, 23(3):868-881, May 2015. [ bib | DOI | pdf ]
[40]	J. Larimore, S. Jade, E. Hellstrom, L. Jiang, and A. G. Stefanopoulou. Adaptive control of a recompression four-cylinder engine. IEEE Transactions on Control Systems Technology, March 2015. [ bib | DOI | pdf ]
[39]	P. Gorzelic, P. Shingne, J. Martz, A. Stefanopoulou, J. Sterniak, and L. Jiang. A low-order adaptive engine model for si-hcci mode transition control applications with cam switching strategies. International Journal of Engine Research, 17(4):451-468, 2015. [ bib | DOI | pdf ]
[38]	Huan Lian, Jason Martz, Niket Prakash, and Anna Stefanopoulou. Fast computation of combustion phasing and its influence on classifying random or deterministic patterns. ASME. J. Eng. Gas Turbines Power, 138(11), 2015. [ bib | DOI | pdf ]
[37]	S. Nüesch, J. Sterniak, L. Jiang, and A. G. Stefanopoulou. On beneficial mode switch decisions based on short-term engine load prediction. In IFAC E-COSM, volume 48, pages 159-166, 2015. [ bib | DOI | pdf ]
[36]	S. Jade, J. Larimore, E. Hellström, L. Jiang, and A. G. Stefanopoulou. Reference governor for load control in a multi-cylinder recompression hcci engine. IEEE Transactions on Control Systems Technology, 22(4):1408-1421, July 2014. [ bib | DOI | pdf ]
[35]	E. Hellström, J. Larimore, S. Jade, A.G. Stefanopoulou, and Li Jiang. Reducing cyclic variability while regulating combustion phasing in a four-cylinder hcci engine. IEEE Transactions on Control Systems Technology, 22(3):1190-7, May 2014. [ bib | DOI | pdf ]
[34]	Patrick Gorzelic, Prasad Shingne, Jason Martz, Anna Stefanopoulou, Jeff Sterniak, and Li Jiang. A low-order hcci model extended to capture si-hcci mode transition data with two-stage cam switching. In ASME Dynamic Systems and Control Conference (DSCC), San Antonio, October 2014, DSCC2014-6275, 2014. [ bib | DOI | pdf ]
[33]	E. Hellström, A. G. Stefanopoulou, and L. Jiang. A linear least-squares algorithm for double-wiebe functions applied to spark-assisted compression ignition. Journal of Engineering for Gas Turbines and Power, 136(9), 2014. [ bib | DOI | pdf ]
[32]	J Larimore, E Hellström, S Jade, AG Stefanopoulou, and Li Jiang. Real-time internal residual mass estimation for combustion with high cyclic variability. International J of Engine Research, Cyclic Dispersion Special Issue, 2014. [ bib | DOI | pdf ]
[31]	Sandro P. Nüesch, Anna G. Stefanopoulou, Li Jiang, and Jeff Sterniak. Methodology to evaluate the fuel economy of a multimode combustion engine with three-way catalytic converter. Journal of Dynamic Systems Measurement and Control, 137(5), 2014. [ bib | DOI | pdf ]
[30]	Sandro Nüesch, Li Jiang, Jeff Sterniak, and Anna Stefanopoulou. Methodology to evaluate the fuel economy of a multimode combustion engine with three-way catalytic converter. In ASME Dynamic Systems and Control Conference (DSCC), San Antonio, October 2014, DSCC2014-6146, 2014. [ bib | DOI | pdf ]
[29]	Sandro Nüesch, Erik Hellström, Li Jiang, and Anna Stefanopoulou. Mode switches among si, saci, and hcci combustion and their influence on drive cycle fuel economy. In in Proceedings of American Control Conference (ACC) 4-6 June 2014, pages 849-854, 2014. [ bib | DOI | pdf ]
[28]	Erik Hellström, Anna Stefanopoulou, and Li Jiang. A linear least-squares algorithm for double-wiebe functions applied to spark-assisted compression ignition. In ASME 2013 Internal Combustion Engine Division Fall Technical Conference, number ICEF2013-19068, 2013. [ bib | DOI | pdf ]
[27]	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, 21(5):1527-1536, 2013. [ bib | DOI | pdf ]
[26]	S. Jade, J. Larimore, E. Hellström, L. Jiang, and A. G. Stefanopoulou. Enabling large load transitions on multicylinder recompression hcci engines using fuel governors. In in Proc. American Control Conference, pages 4423-4428, 2013. [ bib | DOI | pdf ]
[25]	J. Larimore, E. Hellstrom, S. Jade, Li Jiang, and A.G. Stefanopoulou. Controlling combustion phasing variability with fuel injection timing in a multicylinder hcci engine. In in Proc. American Control Conference (ACC), pages 4435-4440, 2013. [ bib | DOI | pdf ]
[24]	Jacob Larimore, Shyam Jade, Erik Hellström, Anna G. Stefanopoulou, Julien Vanier, and Li Jiang. Online adaptive residual mass estimation in a multicylinder recompression hcci engine. In Proc. ASME 2013 Dynamic Systems and Control Conference (DSCC), volume 3, 2013. [ bib | DOI | pdf ]
[23]	S. Nüesch, E. Hellström, Li Jiang, and A. Stefanopoulou. Influence of transitions between si and hcci combustion on driving cycle fuel consumption. In Proc. 2013 European Control Conference (ECC), pages 1976-1981. INSPEC Accession Number: 139506, 2013. [ bib | pdf ]
[22]	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 ]
[21]	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, number DSCC2012-MOVIC2012-8779, pages 359-367, 2012. [ bib | DOI | pdf ]
[20]	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 | 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. Journal of Engineering for Gas Turbines and Power, 134(11):112803, 2012. [ bib | DOI | pdf ]
[18]	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 | DOI | 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 2084-2089, Montréal, Canada, 2012. [ bib | DOI | 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 | DOI | 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, July 2010. [ bib | DOI | pdf ]
[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, July 2010. [ bib | DOI | pdf ]
[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 | DOI | pdf ]
[8]	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, July 2007. [ bib | DOI | pdf ]
[7]	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 ]
[6]	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 ]
[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, 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 | DOI | 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, June 2005. [ bib | DOI | pdf ]
[2]	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, December 2004. [ bib | DOI | pdf ]
[1]	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, July 2004. [ bib | DOI | pdf ]