Publications



Battery Modeling and Control:

Battery Modeling and Control - Electrochemical

[28] M. Zhang, L. Liu, A. Stefanopoulou, J. Siegel, L. Lu, X. He, and M. Ouyang. Fusing phenomenon of lithium-ion battery internal short circuit. Journal of The Electrochemical Society, 164(12):A2738-45, 2017. [ bib | DOI | pdf ]
[27] M. Zhang, J. Du, L. Liu, A. Stefanopoulou, J. Siegel, L. Lu, X. He, X. Xie, and M. Ouyang. Internal short circuit trigger method for lithium-ion battery based on shape memory alloy. Journal of The Electrochemical Society, 164(13):A3038-44, 2017. [ bib | DOI | pdf ]
[26] Youngki Kim, Nassim Samad, Ki Yong Oh, Jason B. Siegel, Bogdan Epureanu, and Anna G. Stefanopoulou. Estimating state-of-charge imbalance of batteries using force measurements. In 2016 American Control Conference (ACC), pages 1500-1505, 2016. [ bib | DOI | pdf ]
[25] N. Samad, Y. Kim, J. B. Siegel, and A. Stefanopoulou. Battery capacity fading estimation using a force-based incremental capacity analysis. Journal of The Electrochemical Society, 163(8):A1584-A1594, 2016. [ bib | DOI | pdf ]
[24] X. Lin and A. G. Stefanopoulou. Analytic bound on accuracy of battery state and parameter estimation. Journal of the Electrochemical Society, 162(9), July 2015. [ bib | DOI | pdf ]
[23] X. Lin, A. G. Stefanopoulou, Y. Li, and R. D. Anderson. State of charge imbalance estimation for battery strings under reduced voltage sensing. IEEE Transactions on Control Systems Technology, 23(3):1052-1062, May 2015. [ bib | DOI | pdf ]
[22] Tulga Ersal, Youngki Kim, John Broderick, Tianyou Guo, Anna G. Stefanopoulou, Jason B. Siegel, Dawn M. Tilbury, Ella Atkins, Huei Peng, Jionghua Jin, and A. Galip Ulsoy. Keeping ground robots on the move through battery and mission management. Mechanical Engineering (New York), 136(6), February 2015. [ bib | pdf | http ]
[21] Y. Kim, A. Salvi, A.G. Stefanopoulou, and T. Ersal. Reducing soot emissions in a diesel series hybrid electric vehicle using a power rate constraint map. IEEE Transactions on Vehicular Technology, 64(1):2-12, 2015. [ bib | DOI | pdf ]
[20] Nassim Samad, Youngki Kim, Jason B. Siegel, and Anna G. Stefanopoulou. Influence of battery downsizing and soc operating window on battery pack performance in a hybrid electric vehicle. In 2015 Vehicle Power and Propulsion Conference, number SS5-1, 2015. [ bib | DOI | pdf | http ]
[19] Youngki Kim, Ashwin Salvi, Jason B. Siegel, Zoran S. Filipi, Anna G. Stefanopoulou, and Tulga Ersal. Hardware-in-the-loop validation of a power management strategy for hybrid powertrains. Control Engineering Practice, 29:277-286, August 2014. [ bib | DOI | pdf ]
[18] T. Ersal, Changsun Ahn, D.L. Peters, J.W. Whitefoot, A.R. Mechtenberg, I.A. Hiskens, Huei Peng, A.G. Stefanopoulou, P.Y. Papalambros, and J.L Stein. Coupling between component sizing and regulation capability in microgrids. IEEE Transactions on Smart Grid, 4(3):1576-1585, September 2013. [ bib | DOI | pdf ]
[17] Xinfan Lin, Anna G. Stefanopoulou, Yonghua Li, and R. Dyche Anderson. State of charge estimation of cells in series connection by using only the total voltage measurement. In Proc. of American Control Conference (ACC), pages 704-709, June 2013. [ bib | DOI | pdf ]
[16] S. U. Kim, L. Secondo, C. W. Monroe, J. Siegel, and A. G. Stefanopoulou. Key parameter for electrothermal dynamics and control of 15-ah prismatic li-ion batteries. In AIChE Annual Meeting, 2013. [ bib ]
[15] Jason B. Siegel, Anna G. Stefanopoulou, Patrick Hagans, Yi Ding, and David Gorsich. Expansion of lithium ion pouch cell batteries: Observations from neutron imaging. Journal of The Electrochemical Society, 160(8):A1031-A1038, 2013. [ bib | DOI | arXiv | pdf | http ]
[14] Y. Kim, T. Ersal, A. Salvi, A. G. Stefanopoulou, and Z. Filipi. Engine-in-the-loop validation of a frequency domain power distribution strategyegy for series hybrid powertrains. In IFP Energies nouvelles, France, October 2012. [ bib | DOI | pdf ]
[13] Jason B. Siegel, Xinfan Lin, and Anna G. Stefanopoulou. On the accuracy and simplifications of battery models using in situ measurements of lithium concentration in operational cells. In American Control Conference (ACC) 27-29 June 2012, pages 1362-1367, June 2012. [ bib | DOI | pdf ]
[12] T. Ersal, C Ahn, I.A. Hiskens, H. Peng, A. Stefanopoulou, and J.L. Stein. On the effect of dc source voltage on inverter-based frequency and voltage regulation in a military microgrid. In Proc. American Control Conference (ACC), pages 2965-2971, Montreal, QC, 2012. [ bib | DOI | pdf ]
[11] C. Speltion, A. G. Stefanopoulou, and G. Fiengo. Parameterization and estimation of surrogate critical surface concentration in lithium-ion batteries. In Special Issue on International Journal of Vehicle Dynamics, 01 March 2011, March 2011. [ bib | pdf | http ]
[10] Tae-Kyung Lee, Youngki Kim, Anna Stefanopoulou, and Zoran S. Filipi. Hybrid electric vehicle supervisory control design reflecting estimated lithium-ion battery electrochemical dynamics. In Proc. American Control Conference (ACC) 2011, 388-395, 2011. [ bib | DOI | pdf ]
[9] Xinfan Lin, Anna Stefanopoulou, Patricia Laskowsky, Jim Freudenberg, Yonghua Li, and R. Dyche Anderson. State of charge estimation error due to parameter mismatch in a generalized explicit lithium ion battery model. ASME Conference Proceedings, 2011(54754):393-400, 2011. [ bib | DOI | pdf ]
[8] Jason B. Siegel, Xinfan Lin, Anna G. Stefanopoulou, Daniel S. Hussey, David L. Jacobson, and David Gorsich. Neutron imaging of lithium concentration in lfp pouch cell battery. Journal of The Electrochemical Society, 158(5):A523-A529, 2011. [ bib | DOI | pdf | http ]
[7] Domenico Di Domenico, Anna Stefanopoulou, and Giovanni Fiengo. Lithium-ion battery state of charge and critical surface charge estimation using an electrochemical model-based extended kalman filter. Journal of Dynamic Systems, Measurement, and Control, 132(6):061302, 2010. [ bib | DOI | pdf | http ]
[6] S. J. Moura, J. B. Siegel, D. J. Siegel, H. K. Fathy, and A. G. Stefanopoulou. Education on vehicle electrification: Battery systems, fuel cells, and hydrogen. In 2010 IEEE Vehicle Power and Propulsion Conference (VPPC2010), pages 1-6, 2010. [ bib | DOI | pdf ]
[5] Carmelo Speltino, Domenico Di Domenico, Giovanni Fiengo, and Anna G. Stefanopoulou. Cell equalization in battery stacks through state of charge estimation polling. In in Proceedings of American Control Conference June 30 2010-July 2 2010, pages 5050-5055, 2010. [ bib | DOI | pdf ]
[4] Carmelo Speltino, Domenico Di Domenico, Giovanni Fiengo, and Anna G. Stefanopoulou. Comparison of reduced order lithium-ion battery models for control applications. In in Proceedings of Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference, pages 3276-3281, October 2009. [ bib | DOI | pdf ]
[3] Carmelo Speltino, Domenico Di Domenico, Giovanni Fiengo, and Anna G. Stefanopoulou. Experimental validation of a lithium-ion battery state of charge estimation with an extended kalman filter: Part i. In The European Control Conference, 2009. [ bib | pdf ]
[2] Carmelo Speltino, Domenico Di Domenico, Giovanni Fiengo, and Anna G. Stefanopoulou. On the experimental identification of an electrochemical model of a lithium-ion battery: Part ii. In The European Control Conference, 2009. [ bib | pdf ]
[1] D. Domenico, G. Di Fiengo, and A. G. Stefanopoulou. Lithium-ion battery state of charge estimation with a kalman filter based on a electrochemical model. In in Proceedings of IEEE International Conference on Control Applications CCA, pages 702-707, September 2008. [ bib | DOI | pdf ]

Battery Modeling and Control - Electromechanical

[8] P. Mohtat, F. Nez, S. Mohan, J. B. Siegel, and A.G. Stefanopoulou. On identifying the aging mechanisms in li-ion batteries using two points measurements. In IEEE American Control Conference (ACC), pages 98-103, 2017. [ bib | DOI | pdf ]
[7] Ki-Yong Oh, Bogdan I. Epureanu, Jason B. Siegel, and Anna G. Stefanopoulou. Phenomenological force and swelling models for rechargeable lithium-ion battery cells. Journal of Power Sources, 310:118-129, 2016. [ bib | DOI | pdf ]
[6] K.-Y. Oh, N. Samad, Y. Kim, J. Siegel, A. Stefanopoulou, and Bogdan I. Epureanu. A novel phenomenological multi-physics model of li-ion battery cells. Journal of Power Sources, 326:447-458, 2016. [ bib | DOI | pdf ]
[5] S. Mohan, Y. Kim, and A. Stefanopoulou. On improving battery state of charge estimation using bulk force measurements. In ASME 2015 Dynamic Systems and Control Conference, number DSCC2015-9966, Columbus, Ohio, October 2015. [ bib | DOI | pdf | http ]
[4] N. Samad, J. B. Siegel, A. Stefanopoulou, and A. Knobloch. Observability analysis for surface sensor location in encased battery cells. In IEEE American Control Conference (ACC), pages 299-304, 2015. [ bib | DOI | pdf ]
[3] Y. Kim, S. Mohan, N. Samad, J.B. Siegel, and A.G. Stefanopoulou. Optimal power management for a series hybrid electric vehicle cognizant of battery mechanical effects. In in Proceedings of American Control Conference (ACC) 4-6 June 2014, pages 3832,3837, 2014. [ bib | DOI | pdf ]
[2] Shankar Mohan, Youngki Kim, Jason B. Siegel, Nassim A. Samad, and Anna G. Stefanopoulou. A phenomenological model of bulk force in a li-ion battery pack and its application to state of charge estimation. Journal of The Electrochemical Society, 161(14):A2222-A2231, 2014. [ bib | DOI | pdf | http ]
[1] Ki-Yong Oh, Jason B. Siegel, Lynn Secundo, Sun Ung Kim, Nassim A. Samad, Jiawei Qin, Dyche Anderson, Krishna Garikipati, Aaron Knobloch, Bogdan I. Epureanu, Charles W. Monroe, and Anna Stefanopoulou. Rate dependence of swelling in lithium-ion cells. Journal of Power Sources, 267(0):197 - 202, 2014. [ bib | DOI | pdf | http ]

Battery Modeling and Control - Electrothermal

[22] Nassim A Samad, Boyun Wang, Jason B. Siegel, and Anna G. Stefanopoulou. Parameterization of battery electrothermal models coupled with finite element flow models for cooling. ASME Journal Dynamic Systems Control and Measurements, 139(7), 2017. [ bib | DOI | pdf ]
[21] S. Mohan, Y. Kim, and A. G. Stefanopoulou. Energy-conscious warm-up of li-ion cells from sub-zero temperatures. IEEE Transactions on Industrial Electronics, 63(5):2954-2964, 2016. [ bib | DOI | pdf ]
[20] S. Mohan, J. Siegel, A.G. Stefanopoulou, M. Castanier, and Y. Ding. Synthesis of an energy-optimal self-heating strategy for li-ion batteries. In 2016 IEEE 55th Conference on Decision and Control (CDC), pages 1589-1594, 2016. [ bib | DOI | pdf ]
[19] Y. Parvini, J. B. Siegel, A. Vahidi, and A. Stefanopoulou. Supercapactior electrical and thermal modeling, identification, and validation for a wide range of temperature and power applications. IEEE Transactions on Industrial Electronics, 63(3):1574-1585, 2016. [ bib | DOI | pdf ]
[18] S. Mohan, Y. Kim, and A. G. Stefanopoulou. Energy-conscious warm-up of li-ion cells from sub-zero temperatures. IEEE Transactions on Industrial Electronics, 63(5):2954-2964, 2016. [ bib | DOI | pdf ]
[17] S. Mohan, Y. Kim, and A.G. Stefanopoulou. Estimating the power capability of li-ion batteries using informationally partitioned estimators. IEEE Transactions on Control Systems Technology, pages 1-12, 2015. [ bib | DOI | pdf ]
[18] S. Mohan, Y. Kim, and A. G. Stefanopoulou. Energy-conscious warm-up of li-ion cells from sub-zero temperatures. IEEE Transactions on Industrial Electronics, 63(5):2954-2964, 2016. [ bib | DOI | pdf ]
[15] N. Samad, J. Siegel, and A. Stefanopoulou. Parameterization and validation of a distributed coupled electro-thermal model for prismatic cells. In ASME Dynamic Systems and Control Conference (DSCC), San Antonio, October 2014, DSCC2014-6321, October 2014. [ bib | DOI | pdf ]
[14] Y. Kim, S. Mohan, J.B. Siegel, A.G. Stefanopoulou, and Y. Ding. The estimation of temperature distribution in cylindrical battery cells under unknown cooling conditions. IEEE Transactions on Control Systems Technology, 22(6):2277-2286, 2014. [ bib | DOI | pdf ]
[13] Xinfan Lin, Hector E. Perez, Shankar Mohan, Jason B. Siegel, Anna G. Stefanopoulou, Yi Ding, and Matthew P. Castanier. A lumped-parameter electro-thermal model for cylindrical batteries. Journal of Power Sources, 257(0):1 - 11, 2014. [ bib | DOI | pdf ]
[12] X. Lin, S. Mohan, J. Siegel, and A. Stefanopoulou. Temperature estimation in a battery string under frugal sensor allocation. In ASME Dynamic Systems and Control Conference (DSCC), San Antonio, October 2014, DSCC2014-6352, 2014. [ bib | DOI | pdf ]
[11] S. Mohan, Y. Kim, A. Stefanopoulou, and Y. Ding. On the warm-up of li-ion cells from sub-zero temperatures. In in Proceedings of American Control Conference (ACC) 4-6 June 2014, pages 1547-1552, 2014. [ bib | DOI | pdf ]
[10] Y. Parvini, J. B. Siegel, A. G. Stefanopoulou, and A. Vahidi. Preliminary results on identification of an electro-thermal model for low temperature and high power operation of cylindrical double layer ultracapacitors. In in Proceedings of American Control Conference (ACC) 4-6 June 2014, pages 242-247, 2014. [ bib | DOI | pdf ]
[9] Xinfan Lin, H.E. Perez, J.B. Siegel, A.G. Stefanopoulou, Yonghua Li, R.D. Anderson, Yi Ding, and M.P. Castanier. Online parameterization of lumped thermal dynamics in cylindrical lithium ion batteries for core temperature estimation and health monitoring. Control Systems Technology, IEEE Transactions on, 21(5):1745-1755, September 2013. [ bib | DOI | pdf ]
[8] Y. Kim, S. Mohan, J.B. Siegel, A.G. Stefanopoulou, and Y. Ding. The estimation of radial temperature distribution in cylindrical battery cells under unknown cooling conditions. In Proc. 2013 IEEE 52nd Annual Conference on Decision and Control (CDC), pages 5680-5685, 2013. [ bib | DOI | pdf ]
[7] Y. Kim, J.B. Siegel, and A.G. Stefanopoulou. A computationally efficient thermal model of cylindrical battery cells for the estimation of radially distributed temperatures. In Proc. American Control Conference (ACC), pages 698-703, 2013. [ bib | DOI | pdf ]
[6] Youngki Kim, Shankar Mohan, Jason B. Siegel, and Anna G. Stefanopoulou. Maximum power estimation of lithium-ion batteries accounting for thermal and electrical constraints. In ASME 2013 Dynamic Systems and Control Conference, volume 2, 2013. [ bib | DOI | pdf ]
[5] Lin, Xinfan, Fu, Huan, Perez, Hector E., Siegel, Jason B., Stefanopoulou, Anna G., Ding, Yi, and Castanier, Matthew P. Parameterization and observability analysis of scalable battery clusters for onboard thermal management. Oil Gas Sci. Technol. - Rev. IFP Energies nouvelles, 68(1):165-178, 2013. [ bib | DOI | pdf ]
[4] Hector E Perez, Jason B Siegel, Xinfan Lin, Yi Ding, and Matthew P Castanier. Parameterization and validation of an integrated electro-thermal lfp battery model. In in Proceedings of 2012 ASME Dynamic Systems Control Conference, DSCC2012-MOVIC2012-8782, pages 41-50, October 2012. [ bib | DOI | pdf ]
[3] Xinfan Lin, Anna G. Stefanopoulou, Hector E. Perez, Jason B. Siegel, Yonghua Li, and R. Dyche Anderson. Quadruple adaptive observer of the core temperature in cylindrical li-ion batteries and their health monitoring. In in Proceedings of American Control Conference (ACC), June 27 - 29 2012, pages 578-583, June 2012. [ bib | DOI | pdf ]
[2] Xinfan Lin, Hector E. Perez, Jason B. Siegel, Anna G. Stefanopoulou, Yi Ding, and Matthew P. Castanier. Parameterization and observability analysis of scalable battery clusters for onboard thermal management. In Les Rencontres Scientifiques d’IFP Energies nouvelles – Int. Scient. Conf. on hybrid and electric vehicles – RHEVE 2011 6-7 December 2011 - Proceedings, December 2011. [ bib | pdf | .pdf ]
[1] Xinfan Lin and Anna Stefanopoulou. Adaptive observer of the core temperature in cylindrical li-ion batteries and their health monitoring. In In the Proceedings of the 2nd REVE at the IFP Energie Nouvelle, 2011. [ bib | pdf ]

Fuel Cell Modeling and Control:

Fuel Cell Water Management

[43] J. Chen, J. B. Siegel, T. Matsuura, A. G. Stefanopoulou, and S. Yesilyurt. Experimental validation of equilibria in fuel cells with dead-ended anodes. In 2013 European Control Conference, July 2013. [ bib | pdf ]
[42] J. Chen, J.B. Siegel, A.G. Stefanopoulou, and J.R. Waldecker. Optimization of purge cycle for dead-ended anode fuel cell operation. International Journal of Hydrogen Energy, 38:5092-5105, 2013. [ bib | DOI | .pdf ]
[41] T. Matsuura, J. Chen, J.B. Siegel, and A.G. Stefanopoulou. Degradation phenomena in pem fuel cell with dead-ended anode. International Journal of Hydrogen Energy, 38:11346-11356, 2013. [ bib | DOI | .pdf ]
[40] Jixin Chen, Jason B. Siegel, and Anna G. Stefanopoulou. Optimization of purging cycle for dead-ended anode fuel cell operation. In Proceedings of the 10th Fuel Cell Science, Engineering and Technology Conference, number ESFuelCell2012-91307, San Diego, California, July 2012. [ bib | .pdf ]
[39] Toyoaki Marsuura, Jason B. Siegel, and Anna G. Stefanopoulou. Experimental investigation of degradation in pemfc with dead-ended anode operation. In ECS Meeting Abstracts, volume 1201, page 315, Seattle, Washington, May 2012. ECS. [ bib | .pdf ]
[38] Serhat Yesilyurt, Jason B. Siegel, and Anna G. Stefanopoulou. Modeling and experiments of voltage transients of polymer electrolyte membrane fuel cells with the Dead-Ended anode. Journal of Fuel Cell Science and Technology, 9(2):021012, April 2012. [ bib | DOI | .pdf ]
[37] Jixin Chen, Jason B. Siegel, and Anna G. Stefanopoulou. Nitrogen blanketing front equilibria in dead end anode fuel cell operation. In Proceedings of the 2011 American Control Conference, pages 1524-1529, San Francisco, CA, US, June 2011. [ bib | DOI | .pdf ]
[36] Jixin Chen, Jason B. Siegel, Toyoaki Matsuura, and Anna G. Stefanopoulou. Carbon corrosion in pem fuel cell dead-ended anode operations. J. Electrochem. Soc., 158(9):B1164-B1174, 2011. [ bib | DOI | .pdf ]
[35] Toyoaki Matsuura, Jason B. Siegel, Anna G. Stefanopoulou, and Jixin Chen. Multiple degradation phenomena in polymer electrolyte membrane fuel cell with dead-ended anode. In Proceedings of the ASME 9th Fuel Cell Science, Engineering and Technology Conference, number FuelCell2011-54344, pages 127-135, 2011. [ bib | DOI | .pdf ]
[34] Denise A. McKay, Anna G. Stefanopoulou, and Jeffrey Cook. A controllable membrane-type humidifier for fuel cell applications - part ii: Controller design, analysis and implementation. Journal of Fuel Cell Science and Technology, 8(1):011004, 2011. [ bib | DOI | pdf | http ]
[33] Jason B. Siegel, Anna G. Stefanopoulou, and Serhat Yesilyurt. Modeling and experiments of voltage transients of pem fuel cells with the dead-ended anode. In Proceedings of the 9th Fuel Cell Science, Engineering and Technology Conference, number ESFuelCell2011-54768, Washington DC, 2011. ASME. [ bib | .pdf ]
[32] Jason B. Siegel, Anna G. Stefanopoulou, and Serhat Yesilyurt. Modeling and simulations of pemfcs operating with periodically purged dead-ended anode channels. In Proc. of the 8th International Fuel Cell Science, Engineering and Technology Conference, number FuelCell2010-33341, pages 823-83, Brooklyn, New York, USA, June 14-16 2010. [ bib | DOI | .pdf ]
[31] Buz A. McCain, Anna G. Stefanopoulou, and Jason B. Siegel. Controllability and observability analysis of the liquid water distribution inside the gas diffusion layer of a unit fuel cell model. Journal of Dynamic Systems, Measurement, and Control, 132(6):061303, 2010. [ bib | DOI | pdf | http ]
[30] Denise A. McKay, Anna G. Stefanopoulou, and Jeffrey Cook. A controllable membrane-type humidifier for fuel cell applications - part i: Operation, modeling and experimental validation. ASME Journal of Fuel Cell Science and Technology, 7(5):051006, 2010. [ bib | DOI ]
[29] Eric A. Muller, Florian Kolb, Lino Guzzella, Anna G. Stefanopoulou, and Denise A. McKay. Correlating nitrogen accumulation with temporal fuel cell performance. Journal of Fuel Cell Science and Technology, 7(2):021013, 2010. [ bib | DOI | pdf | http ]
[28] Jason B. Siegel, Serhat Yesilyurtb, and Anna G. Stefanopoulou. Reduced complexity models for water management and anode purge scheduling in dea operation of pemfcs. ECS Transactions, 33(1):1583-1596, 2010. [ bib | DOI | pdf ]
[27] Jason B. Siegel, Anna G. Stefanopoulou, Giulio Ripaccioli, and Stefano Di Cairano. The Control Handbook, Second Edition: Control System Applications, chapter 5. Purge Scheduling for Dead-Ended Anode Operation of PEM Fuel Cells, pages 5-1 - 5-43. CRC Press, second edition, 2010. [ bib ]
[26] Jason B. Siegel and Anna G. Stefanopoulou. Reduced complexity models for water management and anode purge scheduling in dea operation of pemfc. In ECS Meeting Abstracts, volume MA2010-02, page 766. ECS, 2010. [ bib | .pdf ]
[25] Jason B. Siegel, Stanislav V. Bohac, Anna G. Stefanopoulou, and Serhat Yesilyurt. Nitrogen front evolution in purged polymer electrolyte membrane fuel cell with dead-ended anode. J. Electrochem. Soc., 157(7):B1081-B1093, 2010. [ bib | DOI | .pdf ]
[24] Jason B. Siegel and Anna G. Stefanopoulou. Parameterization of gdl liquid water front propagation and channel accumulation for anode purge scheduling in fuel cells. In Proc. of the 2010 American Control Conference, pages 6606-6611, 2010. [ bib | DOI | .pdf ]
[23] Giulio Ripaccioli, Jason B. Siegel, Anna G. Stefanopoulou, and Stefano Di Cairano. Derivation and simulation results of a hybrid model predictive control for water purge scheduling in a fuel cell. In Proc. of the 2nd Annual Dynamic Systems and Control Conference, Hollywood, CA, USA, October 12-14 2009. [ bib | .pdf ]
[22] J. B. Siegel and A. G. Stefanopoulou. Through the membrane & along the channel flooding in PEMFCs. In Proc. of the 2009 American Control Conference, pages 2666-2671, June 2009. [ bib | DOI | .pdf ]
[21] A. Y. Karnik, J. Sun, A. G. Stefanopoulou, and J. H. Buckland. Humidity and pressure regulation in a pem fuel cell using a gain-scheduled static feedback controller. IEEE Transactions on Control Systems Technology, 17(2):283-297, March 2009. [ bib | DOI | pdf ]
[20] Jason B. Siegel, Serhat Yesilyurt, and Anna G. Stefanopoulou. Extracting model parameters and paradigms from neutron imaging of dead-ended anode operation. In Proc. of the 7th International Fuel Cell Science, Engineering and Technology Conference, 2009. [ bib | .pdf ]
[19] A.G. Stefanopoulou, I.V. Kolmanovsky, and B.A. McCain. A dynamic semi-analytic channel-to-channel model of two-phase water distribution for a unit fuel cell. Control Systems Technology, IEEE Transactions on, 17(5):1055-1068, Sept. 2009. [ bib | DOI ]
[18] Serhat Yesilyurt, Jason Siegel, and Anna Stefanopoulou. Effects of nitrogen and water accumulation in the dead-ended-anode operation of pem fuel cells. In ECS Meeting Abstracts, volume 901, pages 359-359, 2009. [ bib | .pdf ]
[17] J. B. Siegel, D. A. McKay, and A. G. Stefanopoulou. Modeling and validation of fuel cell water dynamics using neutron imaging. In Proc. of the 2008 American Control Conference, pages 2573-2578, June 2008. [ bib | DOI | .pdf ]
[16] B. A. McCain, A. G. Stefanopoulou, and I. V. Kolmanovsky. Stability analysis for liquid water accumulation in low temperature fuel cells. In Proc. 47th IEEE Conference on Decision and Control CDC 2008, pages 859-864, 9-11 Dec. 2008. [ bib | DOI | pdf ]
[15] Buz A. McCain, Anna G. Stefanopoulou, and Ilya V. Kolmanovsky. On the dynamics and control of through-plane water distributions in pem fuel cells. Chemical Engineering Science, 63(17):4418 - 4432, 2008. [ bib | DOI | pdf | http ]
[14] B. A. McCain, J. B. Siegel, and A. G. Stefanopoulou. Stack-level validation of a semi-analytic channel-to-channel fuel cell model for two-phase water distribution boundary value control. In Proc. American Control Conference, pages 5098-5103, 11-13 June 2008. [ bib | DOI | pdf ]
[13] Buz A. McCain, Anna G. Stefanopoulou, and Kenneth R. Butts. On controllability and observability of linearized liquid water distributions inside a pem fuel cell. In Proc. of 2008 Dynamic Systems and Control Conference (DSCC08), volume 2008, pages 385-392, 2008. [ bib | DOI | http ]
[12] D. A. McKay, A. G. Stefanopoulou, and J. Cook. Model and experimental validation of a controllable membrane-type humidifier for fuel cell applications. In Proc. American Control Conference, pages 312-317, 11-13 June 2008. [ bib | DOI | pdf ]
[11] Denise A. McKay, Jason B. Siegel, William Ott, and Anna G. Stefanopoulou. Parameterization and prediction of temporal fuel cell voltage behavior during flooding and drying conditions. Journal of Power Sources, 178(1):207 - 222, 2008. [ bib | DOI | pdf | http ]
[10] Denise A. McKay, Anna G. Stefanopoulou, and Jeffrey Cook. A membrane-type humidifier for fuel cell applications: Controller design, analysis and implementation. In Proc. ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology, volume 2008, pages 841-850, 2008. [ bib | DOI | pdf | http ]
[9] Eric A. Muller, Florian Kolb, Lino Guzzella, Denise A. McKay, and Anna G. Stefanopoulou. Correlating nitrogen accumulation with temporal fuel cell performance. In Proc. ASME 2008 Dynamic Systems and Control Conference, Parts A and B, volume 2008, pages 393-401, 2008. [ bib | DOI | http ]
[8] Jason B. Siegel, Denise A. McKay, Anna G. Stefanopoulou, Daniel S. Hussey, and David L. Jacobson. Measurement of liquid water accumulation in a pemfc with dead-ended anode. Journal of The Electrochemical Society, 155(11):B1168-B1178, 2008. [ bib | DOI | pdf ]
[7] Jason B. Siegel, Denise McKay, and Anna Stefanopoulou. Measurement of liquid water accumulation in a proton exchange membrane fuel cell with dead-ended anode. In Proc. of the 6th International Fuel Cell Science Engineering and Technology, 2008. FuelCell2008-65053. [ bib | DOI | .pdf ]
[6] Amey Y. Karnik, Anna G. Stefanopoulou, and Jing Sun. Water equilibria and management using a two-volume model of a polymer electrolyte fuel cell. Journal of Power Sources, 164(2):590 - 605, 2007. [ bib | DOI | pdf | http ]
[5] B. A. McCain, A. G. Stefanopoulou, and I. V. Kolmanovsky. A multi-component spatially-distributed model of two-phase flow for estimation and control of fuel cell water dynamics. In Proc. 46th IEEE Conference on Decision and Control, pages 584-589, 12-14 Dec. 2007. [ bib | DOI | pdf ]
[4] B. A. McCain and A. G. Stefanopoulou. Order reduction for a control-oriented model of the water dynamics in fuel cells. In Proc ASME 4th International Conf on Fuel Cell Science, Engr and Technology, number FUELCELL2006-97075, pages 151-159, 2006. [ bib | DOI | pdf ]
[3] B. A. McCain, A. G. Stefanopoulou, and K. R. Butts. A study toward minimum spatial discretization of a fuel cell dynamics model. In Proc 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006-14509, 2006. [ bib | DOI | pdf ]
[2] D. A. McKay, W. T. Ott, and A. G. Stefanopoulou. Modeling, parameter identification, and validation of reactant and water dynamics for a fuel cell stack. In Proceedings of 2005 ASME International Mechanical Engineering Congress & Exposition, volume 2005, pages 1177-1186. ASME, Nov 2005. [ bib | DOI | pdf | http ]
[1] D. McKay and A. Stefanopoulou. Parameterization and validation of a lumped parameter diffusion model for fuel cell stack membrane humidity estimation. In Proc. American Control Conference the 2004, volume 1, pages 816-821, June 2004. [ bib | pdf ]

Fuel Cell Reactant Flow Control

[15] S.J. Moura, J.B. Siegel, D.J. Siegel, H.K. Fathy, and A.G. Stefanopoulou. Education on vehicle electrification: Battery systems, fuel cells, and hydrogen. In in Proceedings of IEEE Vehicle Power and Propulsion Conference (VPPC), pages 1 -6, September 2010. [ bib | DOI | pdf ]
[14] A. Ingimundarson, A. Stefanopoulou, and D. A. McKay. Model-based detection of hydrogen leaks in a fuel cell stack. IEEE Transactions on Control Systems Technology, 16(5):1004-1012, Sept. 2008. [ bib | DOI | pdf ]
[13] Kyung-Won Suh and A. G. Stefanopoulou. Performance limitations of air flow control in power-autonomous fuel cell systems. IEEE Transactions on Control Systems Technology, 15(3):465-473, May 2007. [ bib | DOI | pdf ]
[12] Anna G. Stefanopoulou and Kyung-Won Suh. Mechatronics in fuel cell systems. Control Engineering Practice, 15(3):277 - 289, 2007. Selected Papers Presented at the Third IFAC Symposium on Mechatronic Systems (2004), Third IFAC Symposium on Mechatronic Systems. [ bib | DOI | pdf | http ]
[11] A. Vahidi, I. Kolmanovsky, and A. Stefanopoulou. Constraint handling in a fuel cell system: A fast reference governor approach. IEEE Transactions on Control Systems Technology, 15(1):86-98, Jan. 2007. [ bib | DOI | pdf ]
[10] A. Ingimundarson, A. G. Stefanopoulou, and D. McKay. Model based detection of hydrogen leaks in a fuel cell stack. In Proc. and 2005 European Control Conference Decision and Control CDC-ECC '05. 44th IEEE Conference on, pages 1017-1022, 12-15 Dec. 2005. [ bib | pdf ]
[9] A. Ingimundarson, A. G. Stefanopoulou, and D. McKay. Model based detection of hydrogen leaks in a fuel cell stack. In Proceedings of the 44th IEEE Conference on Decision and Control, Seville, Spain, 2005. [ bib | pdf ]
[8] Kyung-Won Suh and A. G. Stefanopoulou. Coordination of converter and fuel cell controllers. In Proc. IEEE International Symposium on Mediterrean Conference on Control and Automation Intelligent Control, pages 563-568, 2005. [ bib | DOI | pdf ]
[7] Kyung-Won Suh and A. G. Stefanopoulou. Coordination of converter and fuel cell controllers. International Journal of Energy Research, 29, 2005. [ bib | DOI | pdf | http ]
[6] A. Vahidi, I. Kolmanovsky, and A. Stefanopoulou. Constraint management in fuel cells: a fast reference governor approach. In Proc. American Control Conference the 2005, pages 3865-3870, 8-10 June 2005. [ bib | DOI | pdf ]
[5] J.T. Pukrushpan, H. Peng, and A.G. Stefanopoulou. Modeling and analysis of fuel cell reactant flow for automotive applications. Journal of Dynamic Systems, Measurement and Control, 126(1):14-25, March 2004. [ bib | pdf ]
[4] J. T. Pukrushpan, A. G. Stefanopoulou, and Huei Peng. Control of fuel cell breathing. IEEE Control Systems Magazine, 24(2):30-46, Apr 2004. [ bib | DOI | pdf ]
[3] S. Gelfi, A. G. Stefanopoulou, J. T. Pukrushpan, and Huei Peng. Dynamics of low-pressure and high-pressure fuel cell air supply systems. In Proc. American Control Conference the 2003, volume 3, pages 2049-2054, June 2003. [ bib | DOI | pdf ]
[2] J. T. Pukrushpan, A. G. Stefanopoulou, and Huei Peng. Modeling and control for pem fuel cell stack system. In Proc. American Control Conference the 2002, volume 4, pages 3117-3122, May 8-10 2002. [ bib | DOI | pdf ]
[1] Jay Pukrushpan, Anna Stefanopoulou, and Huei Peng. Simulation and analysis of transient fuel cell system performance based on a dynamic reactant flow model. In Proc. of the 2002 IMECE conference, 2002. [ bib | pdf ]

Fuel Cell Vehicle Control

[62] Y. Wang, J. Siegel, and A. Stefanopoulou. Control strategies for power quantized solid oxide fuel cell hybrid powertrains: In mobile robot applications. SAE International Journal of Alternative Powertrains, 5(1):58-67, 2016. [ bib | DOI | pdf ]
[61] J. Chen, J. B. Siegel, T. Matsuura, A. G. Stefanopoulou, and S. Yesilyurt. Experimental validation of equilibria in fuel cells with dead-ended anodes. In 2013 European Control Conference, July 2013. [ bib | pdf ]
[60] J. Chen, J.B. Siegel, A.G. Stefanopoulou, and J.R. Waldecker. Optimization of purge cycle for dead-ended anode fuel cell operation. International Journal of Hydrogen Energy, 38:5092-5105, 2013. [ bib | DOI | pdf ]
[59] T. Matsuura, J. Chen, J.B. Siegel, and A.G. Stefanopoulou. Degradation phenomena in pem fuel cell with dead-ended anode. International Journal of Hydrogen Energy, 38:11346-11356, 2013. [ bib | DOI | pdf | .pdf ]
[58] Toyoaki Marsuura, Jason B. Siegel, and Anna G. Stefanopoulou. Experimental investigation of degradation in pemfc with dead-ended anode operation. In ECS Meeting Abstracts, volume 1201, page 315, Seattle, Washington, May 2012. ECS. [ bib | pdf | .pdf ]
[57] Serhat Yesilyurt, Jason B. Siegel, and Anna G. Stefanopoulou. Modeling and experiments of voltage transients of polymer electrolyte membrane fuel cells with the Dead-Ended anode. Journal of Fuel Cell Science and Technology, 9(2):021012, April 2012. [ bib | DOI | pdf | .pdf ]
[56] Jixin Chen, Jason B. Siegel, and Anna G. Stefanopoulou. Nitrogen blanketing front equilibria in dead end anode fuel cell operation. In Proceedings of the 2011 American Control Conference, pages 1524-1529, San Francisco, CA, US, June 2011. [ bib | DOI | pdf | .pdf ]
[55] Toyoaki Matsuura, Jason B. Siegel, Anna G. Stefanopoulou, and Jixin Chen. Multiple degradation phenomena in polymer electrolyte membrane fuel cell with dead-ended anode. In Proceedings of the ASME 9th Fuel Cell Science, Engineering and Technology Conference, number FuelCell2011-54344, pages 127-135, 2011. [ bib | DOI | pdf | .pdf ]
[54] Denise A. McKay, Anna G. Stefanopoulou, and Jeffrey Cook. A controllable membrane-type humidifier for fuel cell applications - part ii: Controller design, analysis and implementation. Journal of Fuel Cell Science and Technology, 8(1):011004, 2011. [ bib | DOI | pdf | http ]
[53] Jason B. Siegel, Anna G. Stefanopoulou, and Serhat Yesilyurt. Modeling and experiments of voltage transients of pem fuel cells with the dead-ended anode. In Proceedings of the 9th Fuel Cell Science, Engineering and Technology Conference, number ESFuelCell2011-54768, Washington DC, 2011. ASME. [ bib | DOI | pdf | .pdf ]
[52] Jason B. Siegel, Anna G. Stefanopoulou, and Serhat Yesilyurt. Modeling and simulations of pemfcs operating with periodically purged dead-ended anode channels. In Proc. of the 8th International Fuel Cell Science, Engineering and Technology Conference, number FuelCell2010-33341, pages 823-83, Brooklyn, New York, USA, June 14-16 2010. [ bib | DOI | pdf | .pdf ]
[51] Domenico Di Domenicoa, Giovanni Fiengoa, and Anna Stefanopoulou. A decoupled controller for fuel cell hybrid electric power split. International Journal of Systems Science, 41(4):447-456, April 2010. [ bib | DOI | pdf ]
[50] Jason B. Siegel, Anna G. Stefanopoulou, Giulio Ripaccioli, and Stefano Di Cairano. The Control Handbook, Second Edition: Control System Applications, chapter 5. Purge Scheduling for Dead-Ended Anode Operation of PEM Fuel Cells, pages 5-1 - 5-43. CRC Press, second edition, 2010. [ bib ]
[49] Buz A. McCain, Anna G. Stefanopoulou, and Jason B. Siegel. Controllability and observability analysis of the liquid water distribution inside the gas diffusion layer of a unit fuel cell model. Journal of Dynamic Systems, Measurement, and Control, 132(6):061303, 2010. [ bib | DOI | pdf | http ]
[48] Denise A. McKay, Anna G. Stefanopoulou, and Jeffrey Cook. A controllable membrane-type humidifier for fuel cell applications - part i: Operation, modeling and experimental validation. ASME Journal of Fuel Cell Science and Technology, 7(5):051006, 2010. [ bib | DOI | pdf ]
[47] Eric A. Muller, Florian Kolb, Lino Guzzella, Anna G. Stefanopoulou, and Denise A. McKay. Correlating nitrogen accumulation with temporal fuel cell performance. Journal of Fuel Cell Science and Technology, 7(2):021013, 2010. [ bib | DOI | pdf | http ]
[46] Jason B. Siegel, Stanislav V. Bohac, Anna G. Stefanopoulou, and Serhat Yesilyurt. Nitrogen front evolution in purged polymer electrolyte membrane fuel cell with dead-ended anode. J. Electrochem. Soc., 157(7):B1081-B1093, 2010. [ bib | DOI | pdf | .pdf ]
[45] Jason B. Siegel and Anna G. Stefanopoulou. Parameterization of gdl liquid water front propagation and channel accumulation for anode purge scheduling in fuel cells. In Proc. of the 2010 American Control Conference, pages 6606-6611, 2010. [ bib | DOI | pdf | .pdf ]
[44] Jason B. Siegel and Anna G. Stefanopoulou. Reduced complexity models for water management and anode purge scheduling in dea operation of pemfc. In ECS Meeting Abstracts, volume MA2010-02, page 766. ECS, 2010. [ bib | pdf | .pdf ]
[43] Jason B. Siegel, Serhat Yesilyurtb, and Anna G. Stefanopoulou. Reduced complexity models for water management and anode purge scheduling in dea operation of pemfcs. ECS Transactions, 33(1):1583-1596, 2010. [ bib | DOI | pdf ]
[42] Giulio Ripaccioli, Jason B. Siegel, Anna G. Stefanopoulou, and Stefano Di Cairano. Derivation and simulation results of a hybrid model predictive control for water purge scheduling in a fuel cell. In Proc. of the 2nd Annual Dynamic Systems and Control Conference, volume 1, pages 149-156, Hollywood, CA, USA, October 12-14 2009. [ bib | DOI | pdf | .pdf ]
[41] J. B. Siegel and A. G. Stefanopoulou. Through the membrane & along the channel flooding in PEMFCs. In Proc. of the 2009 American Control Conference, pages 2666-2671, June 2009. [ bib | DOI | pdf | .pdf ]
[40] A. Y. Karnik, J. Sun, A. G. Stefanopoulou, and J. H. Buckland. Humidity and pressure regulation in a pem fuel cell using a gain-scheduled static feedback controller. IEEE Transactions on Control Systems Technology, 17(2):283-297, March 2009. [ bib | DOI | pdf ]
[39] Jason B. Siegel, Serhat Yesilyurt, and Anna G. Stefanopoulou. Extracting model parameters and paradigms from neutron imaging of dead-ended anode operation. In Proc. of the 7th International Fuel Cell Science, Engineering and Technology Conference, 2009. [ bib | DOI | pdf | .pdf ]
[38] A.G. Stefanopoulou, I.V. Kolmanovsky, and B.A. McCain. A dynamic semi-analytic channel-to-channel model of two-phase water distribution for a unit fuel cell. Control Systems Technology, IEEE Transactions on, 17(5):1055-1068, Sept. 2009. [ bib | DOI | pdf ]
[37] Serhat Yesilyurt, Jason Siegel, and Anna Stefanopoulou. Effects of nitrogen and water accumulation in the dead-ended-anode operation of pem fuel cells. In ECS Meeting Abstracts, volume 901, pages 359-359, 2009. [ bib | pdf | .pdf ]
[36] J. B. Siegel, D. A. McKay, and A. G. Stefanopoulou. Modeling and validation of fuel cell water dynamics using neutron imaging. In Proc. of the 2008 American Control Conference, pages 2573-2578, June 2008. [ bib | DOI | pdf | .pdf ]
[35] B. A. McCain, J. B. Siegel, and A. G. Stefanopoulou. Stack-level validation of a semi-analytic channel-to-channel fuel cell model for two-phase water distribution boundary value control. In Proc. American Control Conference, pages 5098-5103, 11-13 June 2008. [ bib | DOI | pdf ]
[34] Buz A. McCain, Anna G. Stefanopoulou, and Kenneth R. Butts. On controllability and observability of linearized liquid water distributions inside a pem fuel cell. In Proc. of 2008 Dynamic Systems and Control Conference (DSCC08), volume 2008, pages 385-392, 2008. [ bib | DOI | pdf | http ]
[33] Buz A. McCain, Anna G. Stefanopoulou, and Ilya V. Kolmanovsky. On the dynamics and control of through-plane water distributions in pem fuel cells. Chemical Engineering Science, 63(17):4418 - 4432, 2008. [ bib | DOI | pdf | http ]
[32] B. A. McCain, A. G. Stefanopoulou, and I. V. Kolmanovsky. Stability analysis for liquid water accumulation in low temperature fuel cells. In Proc. 47th IEEE Conference on Decision and Control CDC 2008, pages 859-864, 9-11 Dec. 2008. [ bib | DOI | pdf ]
[31] Denise A. McKay, Jason B. Siegel, William Ott, and Anna G. Stefanopoulou. Parameterization and prediction of temporal fuel cell voltage behavior during flooding and drying conditions. Journal of Power Sources, 178(1):207 - 222, 2008. [ bib | DOI | pdf | http ]
[30] D. A. McKay, A. G. Stefanopoulou, and J. Cook. Model and experimental validation of a controllable membrane-type humidifier for fuel cell applications. In Proc. American Control Conference, pages 312-317, 11-13 June 2008. [ bib | DOI | pdf ]
[29] Denise A. McKay, Anna G. Stefanopoulou, and Jeffrey Cook. A membrane-type humidifier for fuel cell applications: Controller design, analysis and implementation. In Proc. ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology, volume 2008, pages 841-850, 2008. [ bib | DOI | pdf | http ]
[28] Eric A. Muller, Florian Kolb, Lino Guzzella, Denise A. McKay, and Anna G. Stefanopoulou. Correlating nitrogen accumulation with temporal fuel cell performance. In Proc. ASME 2008 Dynamic Systems and Control Conference, Parts A and B, volume 2008, pages 393-401, 2008. [ bib | DOI | http ]
[27] Jason B. Siegel, Denise McKay, and Anna Stefanopoulou. Measurement of liquid water accumulation in a proton exchange membrane fuel cell with dead-ended anode. In Proc. of the 6th International Fuel Cell Science Engineering and Technology, 2008. FuelCell2008-65053. [ bib | DOI | pdf | .pdf ]
[26] Jason B. Siegel, Denise A. McKay, Anna G. Stefanopoulou, Daniel S. Hussey, and David L. Jacobson. Measurement of liquid water accumulation in a pemfc with dead-ended anode. Journal of The Electrochemical Society, 155(11):B1168-B1178, 2008. [ bib | DOI | pdf ]
[25] V. Tsourapas, J. Sun, and A. Stefanopoulou. Incremental step reference governor for load conditioning of hybrid fuel cell and gas turbine power plants. In In Proc. IEEE American Control Conference, pages 2184-2189, 2008. [ bib | DOI | pdf ]
[24] O. Sundstroem and A. G. Stefanopoulou. Optimum battery size for fuel cell hybrid electric vehicle, part i. ASME Journal of Fuel Cell Science and Technology, 4(2):167-175, December 2007. [ bib | DOI | pdf ]
[23] O. Sundstroem and A. G. Stefanopoulou. Optimum battery size for fuel cell hybrid electric vehicle with transient loading consideration, part ii. ASME Journal of Fuel Cell Science and Technology, 4(2):176-184, December 2007. [ bib | DOI | pdf ]
[22] E. A. Muller, A. G. Stefanopoulou, and L. Guzzella. Optimal power control of hybrid fuel cell systems for an accelerated system warm-up. IEEE Transactions on Control Systems Technology, 15(2):290-305, March 2007. [ bib | DOI | pdf ]
[21] Amey Y. Karnik, Anna G. Stefanopoulou, and Jing Sun. Water equilibria and management using a two-volume model of a polymer electrolyte fuel cell. Journal of Power Sources, 164(2):590 - 605, 2007. [ bib | DOI | pdf | http ]
[20] B. A. McCain, A. G. Stefanopoulou, and I. V. Kolmanovsky. A multi-component spatially-distributed model of two-phase flow for estimation and control of fuel cell water dynamics. In Proc. 46th IEEE Conference on Decision and Control, pages 584-589, 12-14 Dec. 2007. [ bib | DOI | pdf ]
[19] Kyung-Won Suh and A. G. Stefanopoulou. Inherent performance limitations of power-autonomous fuel cell system. In Proc. American Control Conference, June 2006. [ bib | DOI | pdf ]
[18] Kyung-Won Suh and Anna G. Stefanopoulou. Effects of control strategy and calibration on hybridization level and fuel economy in fuel cell hybrid electric vehicle. In SAE Technical Paper, number 2006-01-0038, 2006. [ bib | DOI | pdf | http ]
[17] B. A. McCain and A. G. Stefanopoulou. Order reduction for a control-oriented model of the water dynamics in fuel cells. In Proc ASME 4th International Conf on Fuel Cell Science, Engr and Technology, number FUELCELL2006-97075, pages 151-159, 2006. [ bib | DOI | pdf ]
[16] B. A. McCain, A. G. Stefanopoulou, and K. R. Butts. A study toward minimum spatial discretization of a fuel cell dynamics model. In Proc 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006-14509, 2006. [ bib | DOI | pdf ]
[15] Eric A. Muller and Anna G. Stefanopoulou. Analysis, modeling, and validation for the thermal dynamics of a polymer electrolyte membrane fuel cell system. Journal of Fuel Cell Science and Technology, 3(2):99-110, 2006. [ bib | DOI | pdf | http ]
[14] Arlette L. Schilter, Denise A. McKay, and Anna G. Stefanopoulou. Parameterization of fuel cell stack voltage: Issues on sensitivity, cell-to cell variation, and transient response. In Proc. ASME 2006 4th Intl Conf on Fuel Cell Science, Engrg and Tech, volume 2006, pages 307-317, 2006. [ bib | DOI | pdf | http ]
[13] Olle Sundstrom and Anna Stefanopoulou. Optimal power split in fuel cell hybrid electric vehicle with different battery sizes, drive cycles, and objectives. In Proc. IEEE Computer Aided Control System Design IEEE International Conference on Control Applications IEEE International Symposium on Intelligent Control, pages 1681-1688, 4-6 Oct. 2006. [ bib | DOI | pdf ]
[12] A. Vahidi, A. Stefanopoulou, and Huei Peng. Current management in a hybrid fuel cell power system: A model-predictive control approach. IEEE Transactions on Control Systems Technology, 14(6):1047-1057, Nov. 2006. [ bib | DOI | pdf ]
[11] Eric A. Muller and Anna G. Stefanopoulou. Analysis, modeling, and validation for the thermal dynamics of a polymer electrolyte membrane fuel cell system. In ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology (FUELCELL2005), volume 2005, pages 389-404, May 2005. [ bib | DOI | pdf | http ]
[10] M. Kokkolaras, Z. Mourelatos, L. Louca, Z Filipi, G. Delagrammatikas, A. Stefanopoulou, P. Papalambros, and D. Assanis. Design under uncertainty and assessment of performance reliability of a dual-use medium truck with hydraulic-hybrid powertrain and fuel cell auxiliary power unit. SAE Transactions - Journal in Engines SAE 2005-01-1396, 2005. [ bib | DOI | pdf | http ]
[9] D. A. McKay, W. T. Ott, and A. G. Stefanopoulou. Modeling, parameter identification, and validation of reactant and water dynamics for a fuel cell stack. In Proceedings of 2005 ASME International Mechanical Engineering Congress & Exposition, volume 2005, pages 1177-1186. ASME, Nov 2005. [ bib | DOI | pdf | http ]
[8] D. McKay and A. Stefanopoulou. Parameterization and validation of a lumped parameter diffusion model for fuel cell stack membrane humidity estimation. In Proc. American Control Conference the 2004, volume 1, pages 816-821, June 2004. [ bib | pdf ]
[7] A. Vahidi, A. Stefanopoulou, and Huei Peng. Model predictive control for starvation prevention in a hybrid fuel cell system. In Proc. American Control Conference 2004, volume 1, pages 834-839, June 2004. [ bib | pdf ]
[6] Zoran Filipi, Loucas Louca, Anna Stefanopoulou, Jay Pukrushpan, Burit Kittirungsi, and Huei Peng. Fuel cell apu for silent watch and mild electrification of a medium tactical truck. Technical report, SAE 2004-01-1477, 2004. [ bib | DOI | pdf ]
[5] Jay T. Pukrushpan, Huei Peng, and Anna G. Stefanopoulou. Control-oriented modeling and analysis for automotive fuel cell systems. Journal of Dynamic Systems, Measurement, and Control, 126(1):14-25, 2004. [ bib | DOI | pdf | http ]
[4] Jay T. Pukrushpan, Anna G. Stefanopoulou, and Huei. Peng. Control Of Fuel Cell Power Systems. Number ISBN: 1-85233-816-4 in Advances in industrial control. Springer, 2004. [ bib | DOI ]
[3] Anna G. Stefanopoulou. Mechatronics in fuel cell systems. In Proceedings of the International Federation of Control, Symposium in Mechatronics, Sydney, Sept 2004. [ bib | DOI | pdf ]
[2] J. T. Pukrushpan, A. G. Stefanopoulou, and H. Peng. Modeling and control of pem fuel cell stack systems. In Proceedings of the American Control Conference, volume 4, pages 3117-3122, May 2002. [ bib | DOI | pdf ]
[1] W Hoffmann and A G Stefanapoulou. Valve position tracking for soft landing of electromechanical camless valvetrain. In Advances in Automotive Control 2001. Proceedings of the 3rd IFAC Workshop, volume 34, pages 295-300. Elsevier, 2001. [ bib | DOI | pdf ]

Fuel Processor Control and Power Generation

[13] J. Siegel, Y. Wang, A. G. Stefanopoulou, and B. McCain. Comparison of sofc and pem fuel cell hybrid power management strategies for mobile robots. In VPPC 2015, October 2015. [ bib | pdf ]
[12] V. Tsourapas, Jing Sun, and A. Stefanopoulou. Incremental step reference governor for load conditioning of hybrid fuel cell and gas turbine power plants. Control Systems Technology, IEEE Transactions on, 17(4):756-767, July 2009. [ bib | DOI | pdf ]
[11] Vasilis Tsourapas, Jing Sun, and Anna Stefanopoulou. Control oriented analysis of a hybrid solid oxide fuel cell and gas turbine system. Journal of Fuel Cell Science and Technology, 6(4):041008, 2009. [ bib | DOI | pdf | http ]
[10] V. Tsourapas, Vasilis Tsourapas, and A. G. Stefanopoulou. Model-based control of an integrated fuel cell and fuel processor with exhaust heat recirculation. IEEE Transactions on Control Systems Technology, 15(2):233-245, March 2007. [ bib | DOI | pdf ]
[9] Vasilis Tsourapas, Jing Sun, and Anna Stefanopoulou. Control oriented analysis of a hybrid solid oxide fuel cell and gas turbine (sofc/gt) system. In ASME Conference on Fuel Cell Science and Technology, number FC-07-1086, 2007. [ bib | pdf ]
[8] J. Pukrushpan, A. Stefanopoulou, S. Varigonda, J. Eborn, and C. Haugstetter. Control-oriented model of fuel processor for hydrogen generation in fuel cell applications. Control Engineering Practice, 14(3):277-293, March 2006. [ bib | DOI | pdf ]
[7] Vasilis Tsourapas, Jing Sun Sun, and Anna Stefanopoulou. Performance evaluation of a thermally integrated fuel cell system in the presence of uncertainties. In Proc. ASME 2006 4th Inttl Conf on Fuel Cell Science, Engrg and Tech, volume 2006, pages 291-300, 2006. [ bib | DOI | pdf | http ]
[6] J. T. Pukrushpan, A. G. Stefanopoulou, S. Varigonda, L. M. Pedersen, S. Ghosh, and Huei Peng. Control of natural gas catalytic partial oxidation for hydrogen generation in fuel cell applications. IEEE Transactions on Control Systems Technology, 13(1):3-14, Jan. 2005. [ bib | DOI | pdf ]
[5] V. Tsourapas, A. Stefanopoulou, and Jing Sun. Dynamics, optimization and control of a fuel cell based combined heat power (chp) system for shipboard applications. In Proc. American Control Conference the 2005, pages 1993-1998, 8-10 June 2005. [ bib | DOI | pdf ]
[4] Jay Pukrushpan, Anna Stefanopoulou, and Subbarao Varigonda. Control-oriented model of fuel processor for hydrogen generation in fuel cell applications. In IFAC Symposium in Adavnces in Automotive Systems,, Salerno, 2004. [ bib | pdf ]
[3] Vasilis Tsourapas, Jing Sun, and Anna Stefanopoulou. Modeling and dynamics of a fuel cell combined heat power system for marine applications. IASME Transactions, 2(1):288-293, 2004. [ bib | pdf ]
[2] J. T. Pukrushpan, A. G. Stefanopoulou, S. Varigonda, L. M. Pedersen, S. Ghosh, and Huei Peng. Control of natural gas catalytic partial oxidation for hydrogen generation in fuel cell applications. In Proc. American Control Conference the 2003, volume 3, pages 2030-2036, June 2003. [ bib | DOI | pdf ]
[1] S. Varigonda, J. Pukrushpan, and A. G. Stefanopoulou. Challenges in fuel cell power plant control: The role of system level models. In AIChE Spring Meeting, 2003. [ bib | pdf ]


Internal Combustion Engine Control:

Flex-Fuel Vehicles (FFV)

[13] Kyung-ho Ahn, Anna G. Stefanopoulou, and Mrdjan Jankovic. Afr-based fuel ethanol content estimation in flex-fuel engines tolerant to maf sensor drifts. IEEE Transactions on Control Systems Technology, 21(3):590-603, May 2013. [ bib | DOI | pdf ]
[12] E. Hellström, D. Lee, L. Jiang, A. G. Stefanopoulou, and H. Yilmaz. On-board calibration of spark timing by extremum seeking for flex-fuel engines. IEEE Transactions on Control Systems Technology, 21(6):2273-2279, 2013. [ bib | DOI | pdf ]
[11] D. Lee, L. Jiang, H. Yilmaz, and A.G. Stefanopoulou. Air charge control for turbocharged spark ignition engines with internal exhaust gas recirculation. In 2010 American Control Conference, pages 1471-1476, June 2010. [ bib | DOI | pdf ]
[10] K. Ahn, A.G. Stefanopoulou, L. Jiang, and H. Yilmaz. Ethanol content estimation in flex fuel direct injection engines using in-cylinder pressure measurements. Technical Report 2010-01-0166, SAE World Congress, 2010. [ bib | DOI | pdf ]
[9] K. Ahn, A.G. Stefanopoulou, and M. Jankovic. Puddle dynamics and air-to-fuel ratio compensation for gasoline-ethanol blends in flex-fuel engines. IEEE Trans. Control Syst. Technol., 18(6):1241-1253, 2010. [ bib | DOI | pdf ]
[8] K. Ahn, L. Jiang, and A.G. Yilmaz, H.and Stefanopoulou. Ethanol content estimation in flex-fuel direct injection engines with fault detection under fuel injector drifts. In IFAC Symposium on Advances in Automotive Control (AAC2010), 2010. [ bib | pdf ]
[7] L. Jiang, H. Yilmaz, M. Christie, K. Ahn, and A. Stefanopoulou. Optimally controlled flexible fuel vehicle. In 10th Stuttgart International Symposium, 2010. [ bib | pdf ]
[6] Kyung-ho Ahn, Anna G. Stefanopoulou, and Mrdjan Jankovic. Tolerant ethanol estimation in flex-fuel vehicles during maf sensor drifts. In Proceedings of the ASME 2009 Dynamic Systems and Control Conference, number DSCC2009-2708 in Paper MoAT4.3, pages 581-588, October 2009. [ bib | DOI | pdf ]
[5] N. Oliverio, A. Stefanopoulou, L. Jiang, and H. Yilmaz. Ethanol detection in flex-fuel direct injection engines using in-cylinder pressure measurements. SAE International Journal of Fuels and Lubricants, SAE 2009-01-0657, 2(1):229-241, October 2009. [ bib | DOI | pdf ]
[4] Kyung-ho Ahn, A.G. Stefanopoulou, and M. Jankovic. Fuel puddle model and afr compensator for gasoline-ethanol blends in flex-fuel engines. In IEEE Vehicle Power and Propulsion Conference VPPC '09., pages 1148-1155, September 2009. [ bib | DOI | pdf ]
[3] L. Jiang, J. Vanier, H. Yilmaz, and A. Stefanopoulou. Parameterization and simulation for a turbocharged spark ignition direct injection engine with variable valve timing. Technical Report 2009-01-0680, SAE, 2009. [ bib | DOI | pdf ]
[2] Nestor H. Oliverio, Li Jiang, Hakan Yilmaz, and Anna G. Stefanopoulou. Modeling of fuel ethanol concentration effect on cylinder pressure evolution in direct-injection flex-fuel engines. In Proceedings of the American Control Conference, pages 2037-2044, 2009. [ bib | DOI | pdf ]
[1] Kyung-ho Ahn, Anna G. Stefanopoulou, and Mrdjan Jankovic. Estimation of ethanol content in flex-fuel vehicles using an exhaust gas oxygen sensor: Model, tuning and sensitivity. In Proceedings of ASME Dynamic Systems and Control Conference (DSCC08), number DSCC2008-2232, pages 947-954, 2008. [ bib | DOI | pdf ]

Ignition Control (HCCI)

[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 ]

Variable Valve Timing (VVT) Technologies

[41] A. P. Wiese, A. Stefanopoulou, A. Karnik, and J. H. Buckland. Model predictive control for low pressure exhaust gas recirculation with scavenging. In American Control Conference (ACC), pages 3638-3643, 2017. [ bib | DOI | pdf ]
[40] A. Wiese, A.G. Stefanopoulou, J. Buckland, and A. Y. Karnik. Modelling and control of engine torque for short-circuit flow and egr evacuation. In SAE Technical Paper 2017-01-0606, 2017. [ bib | DOI | pdf ]
[39] C. Guardiola, V. Triantopoulos, P. Bares, S. Bohac, and A. Stefanopoulou. Simultaneous estimation of intake and residual mass using in-cylinder pressure in an engine with negative valve overlap. In 8th IFAC Symposium on Advances in Automotive Control, 2016. [ bib | DOI | pdf ]
[38] D. Lee, L. Jiang, H. Yilmaz, and A. G. Stefanopoulou. Preliminary results on optimal variable valve timing and spark timing control via extremum seeking. In DSCC 2010, 2010. [ bib ]
[37] L. Jiang, J. Vanier, H. Yilmaz, and A. Stefanopoulou. Parameterization and simulation for a turbocharged spark ignition direct injection engine with variable valve timing. In SAE Technical Paper 2009-01-0680, 2009. [ bib | DOI | pdf ]
[36] Chia-Jui Chiang, Anna G. Stefanopoulou, and Mrdjan Janković. Nonlinear control of transitions between thermal equilibria in homogeneous charge compression ignition (hcci) engines. In In Proceedings of AVEC '06 : 8th International Symposium on Advanced Vehicle Control, 2006. [ bib ]
[35] K. S. Peterson, J. W. Grizzle, and A. G. Stefanopoulou. Nonlinear control for magnetic levitation of automotive engine valves. IEEE Transactions on Control Systems Technology, 14(2):346-354, 2006. [ bib | DOI | pdf ]
[34] L.S. Peterson, A.G. Stefanopoulou, and J. Freudenberg. Current versus flux in the control of electromechanical valve actuators. In Proceedings of the 2005 American Control Conference, volume 7, pages 5021-5026, 2005. [ bib | DOI | pdf ]
[33] Hakan Yilmaz and Anna Stefanopoulou. Control of charge dilution in turbocharged diesel engines via exhaust valve timing. Journal of Dynamic Systems, Measurement, and Control, 127(3):363-373, 2005. [ bib | DOI | pdf | http ]
[32] Katherine S. Peterson and Anna G. Stefanopoulou. Extremum seeking control for soft landing of an electromechanical valve actuator. Automatica, 40(6):1063 - 1069, 2004. [ bib | DOI | pdf | http ]
[31] K.S. Peterson, J.W. Grizzle, and A.G. Stefanopoulou. Nonlinear magnetic levitation of automotive engine valves. In Third IFAC Symposium on Mechatronic Systems, pages 645-650, 2004. [ bib | pdf ]
[30] H. Yilmaz and A. Stefanopoulou. Control of charge dilution in turbocharged diesel engines via exhaust valve timing. In American Control Conference, 2003. Proceedings of the, volume 1, pages 761-766 vol.1, June 2003. [ bib | pdf ]
[29] W. Hoffmann, K. Peterson, and A. Stefanopoulou. Iterative learning control for soft landing of electromechanical valve actuator in camless engines. IEEE Transactions on Control System Technology, 11(2):174-184, March 2003. [ bib | DOI | pdf ]
[28] K. S. Peterson, A. G. Stefanopoulou, Y. Wang, and T. Megli. Virtual lash adjuster for an electromechanical valve actuator through iterative learning control. In Proceedings of ASME International Mechanical Engineering Congress and Exposition (IMECE2003), pages 295-301. ASME, 2003. [ bib | DOI | pdf | http ]
[27] K.S. Peterson and A.G. Stefanopoulou. Rendering the electromechanical valve actuator globally asymptotically stable. In Decision and Control, 2003. Proceedings. 42nd IEEE Conference on, volume 2, pages 1753-1758, 2003. [ bib | DOI | pdf ]
[26] K. S. Peterson, A. G. Stefanopoulou, and Y Wang. Control of electromechanical actuators: Valves tapping in rhythm. In L. Giarre' and B. Bamieh, editors, Multidisciplinary Research in Control, The Mohammed Dahleh Symposium 2002, volume 289 of Lecture Notes in Control and Information Sciences. Springer-Verlag, 2003. ISBN 3-540-00917-5. [ bib | DOI | pdf ]
[25] S. Liu and A.G. Stefanopoulou. Effects of control structure on performance for an automotive powertrain with a continuously variable transmission. Control Systems Technology, IEEE Transactions on, 10(5):701-708, September 2002. [ bib | DOI | pdf ]
[24] K.S. Peterson, A.G. Stefanopoulou, Y. Wang, and M. Haghgooie. Nonlinear self-tuning control for soft landing of an electromechanical valve actuator. In Mechatronic Systems 2002: A Proceedings Volume from the 2nd IFAC Conference, pages 191-196, 2002. [ bib | pdf ]
[23] K. Peterson, A. Stefanopoulou, T. Megli, and M. Haghgooie. Output observer based feedback for soft landing of electromechanical camless valvetrain actuator. In American Control Conference, 2002. Proceedings of the 2002, volume 2, pages 1413-1418, 2002. [ bib | DOI | pdf ]
[22] K.S. Peterson, W. Hoffman, and A. Stefanopoulou. Experimental results and implementation issues of an iterative learning controller for soft landing of an electromechanical valve actuator. In Proceedings of the 10th Mediterranean Conference on Control and Automation - MED2002, Lisbon, Portugal, July 9-12, 2002., 2002. [ bib | pdf ]
[21] Y. Wang, A. Stefanopoulou, K. Peterson, T. Megli, and M. Haghgooie. Modeling and control of electromechanical valve actuator. Technical Report 2002-01-1106, SAE, 2002. [ bib | DOI | pdf ]
[20] W. Hoffmann and A.G. Stefanopoulou. Iterative learning control of electromechanical camless valve actuator. In American Control Conference, 2001. Proceedings of the 2001, volume 4, pages 2860-2866, 2001. [ bib | DOI | pdf ]
[19] M.-S. S. Ashhab, A. G. Stefanopoulou, J. A. Cook, and M. B. Levin. Control-oriented model for camless intake process-part i. Journal of Dynamic Systems, Measurement, and Control, 122(1):122-130, 2000. [ bib | DOI | pdf | http ]
[18] M.-S. S. Ashhab, A. G. Stefanopoulou, J. A. Cook, and M. B. Levin. Control of camless intake process - part ii. Journal of Dynamic Systems, Measurement, and Control, 122(1):131-139, 2000. [ bib | DOI | pdf | http ]
[17] A.G. Stefanopoulou, J.S. Freudenberg, and J.W. Grizzle. Variable camshaft timing engine control. Control Systems Technology, IEEE Transactions on, 8(1):23-34, January 2000. [ bib | DOI | pdf ]
[16] Y. Wang, A. Stefanopoulou, I. Haghgooie, M.and Kolmanovsky, and M. Hammoud. Modeling of an electromechanical valve actuator for a camless engine. In AVEC '2000: 5th International Symposium on Advanced Vehicle Control, volume 5, page 2907, 2000. [ bib | pdf ]
[15] A.G. Stefanopoulou and I. Kolmanovsky. Analysis and control of transient torque response in engines with internal exhaust gas recirculation. Control Systems Technology, IEEE Transactions on, 7(5):555-566, September 1999. [ bib | DOI | pdf ]
[14] Yan Wang, A. Stefanopoulou, and M. Levin. Idle speed control: an old problem in a new engine design. In American Control Conference, 1999. Proceedings of the 1999, volume 2, pages 1217-1221 vol.2, June 1999. [ bib | DOI | pdf ]
[13] M.-S. S. Ashhab, A. G. Stefanopoulou, J. A. Cook, and M. B. Levin. Control-oriented model for camless intake process part i. In Proceedings of International Mechanical Engineering Congress & Exposition (!MECE), Dynamic Systems & Control Division (DSCD), pages 179-186, 1999. [ bib | DOI | pdf ]
[12] M.-S. S. Ashhab, A. G. Stefanopoulou, J. A. Cook, and M. B. Levin. Control of camless intake process - part ii. In Proceedings of International Mechanical Engineering Congress & Exposition (!MECE), Dynamic Systems & Control Division (DSCD), pages 187-194, 1999. [ bib | pdf ]
[11] S.C. Hsieh, J.S. Freudenberg, and A.G. Stefanopoulou. Multivariable controller structure in a variable cam timing engine with electronic throttle and torque feedback. In Proceedings of the 1999 IEEE International Conference on Control Applications, volume 1, pages 465-470 vol. 1, 1999. [ bib | DOI | pdf ]
[10] A. G. Stefanopoulou, J. A. Cook, J. W. Grizzle, and J. S. Freudenberg. Joint air-fuel ratio and torque regulation using secondary cylinder air flow actuators. Journal of Dynamic Systems, Measurement, and Control, 121(4):638-647, 1999. [ bib | DOI | pdf | http ]
[9] M. Jankovic, F. Frischmuth, A. Stefanopoulou, and J.A. Cook. Torque management of engines with variable cam timing. Control Systems Magazine, IEEE, 18(5):34-42, October 1998. [ bib | DOI | pdf ]
[8] M. S. Ashhab, A. G. Stefanopoulou, J. A. Cook, and M. Levin. Camless engine control for robust unthrottled operation. In Society of Automotive Engineers Special Publication Series SP-1346 SAE981031, 1998. [ bib | DOI | pdf ]
[7] A. G. Stefanopoulou, J. A. Cook, J. W. Grizzle, and J. S. Freudenberg. Control-oriented model of a dual equal variable cam timing spark ignition engine. Journal of Dynamic Systems, Measurement, and Control, 120(2):257-266, 1998. [ bib | DOI | pdf | http ]
[6] S.C. Hsieh, A.G. Stefanopoulou, J.S. Freudenberg, and K.R. Butts. Emission and drivability tradeoffs in a variable cam timing si engine with electronic throttle. In American Control Conference, 1997. Proceedings of the 1997, volume 1, pages 284-288 vol.1, June 1997. [ bib | DOI | pdf ]
[5] A.G. Stefanopoulou and I. Kolmanovsky. Dynamic scheduling of internal exhaust gas recirculation systems. In IMECE 1997, Sixth ASME Symposium on Advanced Automotive Technologies, Proceedings of, volume 61, pages 671-678, 1997. [ bib | pdf ]
[4] A.G. Stefanopoulou, K.R. Butts, J.A. Cook, J.S. Freudenberg, and J.W. Grizzle. Consequences of modular controller development for automotive powertrains: a case study. In Decision and Control, 1995., Proceedings of the 34th IEEE Conference on, volume 1, pages 768-773, December 1995. [ bib | DOI | pdf ]
[3] A.G. Stefanopoulou, J.A. Cook, J.S. Freudenberg, J.W. Grizzle, M. Haghgooie, and P.S. Szpak. Modeling and control of a spark ignition engine with variable cam timing. In Proceedings of the American Control Conference, 1995, volume 4, pages 2576-2581, June 1995. [ bib | DOI | pdf ]
[2] A. G. Stefanopoulou, K. R. Butts, J. A. Cook, J. S. Freudenberg, and J. W. Grizzle. Automotive powertrain control for modular controller architectures: A case study. In 1995 Conference on Decision and Control, pages 768-773, 1995. [ bib ]
[1] A.G. Stefanopoulou, J.W. Grizzle, and J.S. Freudenberg. Engine air-fuel ratio and torque control using secondary throttles. In Decision and Control, 1994., Proceedings of the 33rd IEEE Conference on, volume 3, pages 2748-2753 vol.3, December 1994. [ bib | DOI | pdf ]

Turbocharging Technologies

[40] R. Kiwan, A. G. Stefanopoulou, J. Martz, G. Surnilla, I. Ali, and D. Styles. Effects of differential pressure sensor gauge-lines and measurement accuracy on low pressure egr estimation error in si engines. In SAE Technical Paper 2017-01-0531, 2017. [ bib | DOI | pdf ]
[39] S. Nazari, R. J. Middleton, J. Martz, and A. G. Stefanopoulou. The elusive consequences of slow engine response on drive cycle fuel efficiency. In 2017 American Control Conference (ACC), pages 5379-5385, 2017. [ bib | DOI | pdf ]
[38] R. Kiwan, A. Stefanopoulou, J. Martz, G. Surnilla, I. Ali, and D. Styles. Effects of differential pressure measurement characteristics on low pressure-egr estimation error in si-engines. In 8th IFAC Symposium on Advances in Automotive Control, volume 49, pages 722-729, 2016. [ bib | DOI | pdf ]
[37] S. Nazari, A.G. Stefanopoulou, R. Kiwan, and V. Tsourapas. A coordinated boost control in a twincharged spark ignition engine with high external dilution. In ASME 2016 Dynamic Systems and Control Conference, number DSCC2016-9691, 2016. [ bib | DOI | pdf ]
[36] Rasoul Salehi, Jason Martz, and Anna G. Stefanopoulou. Comparison of high-pressure and low-pressure supercharging of a hdd engine: Dynamic and steady state considerations. In SAE Technical Paper 2016-01-1035, 2016. [ bib | DOI | pdf ]
[35] R. Salehi, A. Stefanopoulou, D. Kihas, and M. Uchanski. Selection and tuning of a reduced parameter set for a turbocharged diesel engine model. In 2016 American Control Conference (ACC), 2016. [ bib | DOI | pdf ]
[34] R. Salehi, J. Martz, A. Stefanopoulou, D. Rizzo, D. Mcgrew, and T. Hansen. Enabling electrified diesel engine-powered and vehicle-supported microgrids. In NDIA Ground Vehicle Systems Engineering and Technology Symposium (GVSETS), 2016. [ bib | pdf ]
[33] Michael J. III Hand and Anna Stefanopoulou. Location isolability of intake and exhaust manifold leaks in a turbocharged diesel engine with exhaust gas recirculation. In ASME Dynamic Systems and Control Conference (DSCC), San Antonio, October 2014, DSCC2014-6175, 2014. [ bib | DOI | pdf ]
[32] Mike J. Hand, Erik Hellström, Doohyun Kim, Anna Stefanopoulou, Justin Kollien, and Craig Savonen. Model and calibration of a diesel engine air path with an asymmetric twin scroll turbine. In Proc. ASME 2013 Internal Combustion Engine Division Fall Technical Conference, volume 1, 2013. [ bib | DOI | pdf ]
[31] A. Vahidi, A.Stefanopoulou, and H. Peng. Adaptive model predictive control for coordination of compression and friction brakes in heavy duty vehicles. International Journal of Adaptive Control and Signal Processing, 20(10):581-598, December 2006. [ bib | DOI | pdf ]
[30] A. Vahidi, A. Stefanopoulou, and H. Peng. Recursive least squares with forgetting for online estimation of vehicle mass and road grade: theory and experiments. Vehicle System Dynamics, 43(1):31-55(25), 2005. [ bib | DOI | pdf | http ]
[29] M. Druzhinina and A. Stefanopoulou. Speed control experiments for heavy duty vehicles with coordinated friction and engine compression brakes. International Journal of Heavy Vehicle Systems, 11(3-4):237-256, 2004. [ bib | DOI | http ]
[28] A. G. Stefanopoulou, O. F. Storset, and R. Smith. Pressure and temperature-based adaptive observer of air charge for turbocharged diesel engines. International Journal of Robust and Nonlinear Control, 14(6):543-560, 2004. [ bib | DOI | pdf | http ]
[27] Ove F. Storset, Anna G. Stefanopoulou, and Roy Smith. Adaptive air charge estimation for turbocharged diesel engines without exhaust gas recirculation. Journal of Dynamic Systems, Measurement, and Control, 126(3):633-643, 2004. [ bib | DOI | pdf | http ]
[26] Ardalan Vahidi, Anna Stefanopoulou, and Huei Peng. Adaptive model predictive control for vehicle braking assist system design. In ASME Conference Proceedings, pages 181-188. ASME, 2004. [ bib | DOI | http ]
[25] A. Vahidi, A. Stefanopoulou, and H. Peng. Experiments for online estimation of heavy vehicle's mass and time-varying road grade. In Proceedings ASME 2003 International Mechanical Engineering Congress and Exposition (IMECE) Dynamic Systems and Control, pages 451-45, 2003. [ bib | DOI | pdf ]
[24] A. Vahidi, M. Druzhinina, A. Stefanopoulou, and H. Peng. Simultaneous mass and time-varying grade estimation for heavy-duty vehicles. In Proceedings of the 2003 American Control Conference, volume 6, pages 4951-4956, 2003. [ bib | DOI | pdf ]
[23] M. Druzhinina, L. Moklegaard, and A. Stefanopoulou. Speed gradient approach to longitudinal control of heavy-duty vehicles equipped with variable compression brake. IEEE Transactions on Control System Technology, 10(2):209-221, 2002. [ bib | DOI | pdf ]
[22] Maria Druzhinina, Anna Stefanopoulou, and Lasse Moklegaard. Adaptive continuously variable compression braking control for heavy-duty vehicles. Journal of Dynamic Systems, Measurement, and Control, 124(3):406-414, 2002. [ bib | DOI | pdf | http ]
[21] M. Druzhinina and A.G. Stefanopoulou. Speed control experiments for commercial heavy vehicles with coordinated friction and engine compression brakes. American Control Conference, 2002. Proceedings of the, 3:2546-2551, 2002. [ bib | DOI | pdf ]
[20] I.V. Kolmanovsky and A.G. Stefanopoulou. Optimal control techniques for assessing feasibility and defining subsystem level requirements: an automotive case study. Control Systems Technology, IEEE Transactions on, 9(3):524-534, May 2001. [ bib | DOI | pdf ]
[19] Maria Druzhinina, Anna Stefanopolou, and Lasse Moklegard. Further results on adaptive compression braking control for heavy-duty vehicles. In Proceedings of the ASME IMECE 2001, Dynamic Systems and Control, volume 2, 2001. [ bib | DOI | pdf ]
[18] L. Moklegaard, M. Druzhinina, and A. Stefanopoulou. Brake valve timing and fuel injection: a unified engine torque actuator for heavy-duty vehicles. Journal of Vehicle System Dynamics, 36(2-3):179-201(23), 2001. [ bib | DOI | pdf ]
[17] Y. Wang, A. Stefanopoulou, and R. Smith. Inherent limitations and control design for camless engine idle speed dynamics. International Journal of Robust and Nonlinear Control, 11(11):1023-1042, 2001. [ bib | DOI | pdf ]
[16] O.F. Storset, A. Stefanopoulou, and R. Smith. Air charge estimation for turbocharged diesel engines. In Proceedings of the 2000 American Control Conference, volume 1, pages 39-44, September 2000. [ bib | DOI | pdf ]
[15] Sharon Liu, Anna Stefanopoulou, and Brad Paden. Effects of control structure on performance for an automotive powertrain with continuously variable transmission. In Proceedings AVEC 2000, 5th Int'l Symposium on Advanced Vehicle Control, number 54, August 2000. [ bib | DOI | pdf | http ]
[14] A.G. Stefanopoulou, I. Kolmanovsky, and J.S. Freudenberg. Control of variable geometry turbocharged diesel engines for reduced emissions. Control Systems Technology, IEEE Transactions on, 8(4):733-745, July 2000. [ bib | DOI | pdf ]
[13] M.J. van Nieuwstadt, I.V. Kolmanovsky, P.E. Moraal, A. Stefanopoulou, and M. Jankovic. Egr-vgt control schemes: experimental comparison for a high-speed diesel engine. IEEE Control Systems Magazine, 20(3):63-79, June 2000. [ bib | pdf ]
[12] A. G. Stefanopoulou. Multivariable design limitations for advanced technology automotive powertrains. In Proceedings American Control Conference, volume 5, pages 28-30, June 2000. [ bib | DOI | pdf ]
[11] O. Storset, R. Smith, and A.G. Stefanopoulou. Cylinder air charge estimation in variable geometry turbocharging. In Proceedings American Control Conference, volume 1, pages 28-30, June 2000. [ bib | DOI ]
[10] I. V. Kolmanovsky and A. G. Stefanopoulou. Evaluation of turbocharger power assist system using optimal control techniques. In SAE World Congress, number SAE 2000-01-0519, March 2000. [ bib | DOI | pdf ]
[9] M. Druzhinina, L. Moklegaard, and A. Stefanopoulou. Speed gradient approach to longitudinal control of heavy-duty vehicles equipped with variable compression brake. In Proceedings of AVEC 2000. 5th Int'l Symposium on Advanced Vehicle Control. August 22-24, 2000, 2000. [ bib | pdf ]
[8] M. Druzhinina, L. Moklegaard, and A.G. Stefanopoulou. Compression braking control for heavy-duty vehicles. In Proceedings of the 2000 American Control Conference, volume 4, pages 2543-2547, 2000. [ bib | DOI | pdf ]
[7] L. Moklegaard, M. Druzhinina, and A. Stefanopoulou. Brake valve timing and fuel injection: a unified engine torque actuator for heavy-duty vehicles. In Proceedings of AVEC 2000. 5th Int'l Symposium on Advanced Vehicle Control. August 22-24, 2000, 2000. [ bib | pdf ]
[6] L. Moklegaard, A.G. Stefanopoulou, and J.H. Schmidt. Transition from combustion to variable compression braking. Technical Report SAE 2000-01-1228, SAE Congress, 2000. [ bib | DOI | pdf ]
[5] A. Stefanopoulou and R. Smith. Maneuverability and smoke emission constraints in marine diesel propulsion. Control Engineering Practice, 8(9):1023 - 1031, 2000. [ bib | DOI | pdf | http ]
[4] I. Kolmanovsky, A.G. Stefanopoulous, and B.K. Powell. Improving turbocharged diesel engine operation with turbo power assist system. In Proceedings of the 1999 IEEE International Conference on Control Applications, 1999., volume 1, pages 454-459, 1999. [ bib | DOI | pdf ]
[3] M. van Nieuwstadt, P.E. Moraal, I.V. Kolmanovsky, A. Stefanopoulou, P. Wood, and M. Criddle. Decentralized and multivariable designs for egr-vgt control of a diesel engines. In Advances in automotive control 1998 : a proceedings volume from the 2nd IFAC workshop, 1998. [ bib | pdf ]
[2] A.G. Stefanopoulou and R. Smith. Emissions and performance tradeoffs for advanced marine diesel propulsion. In IFAC Workshop on Advances in Automotive Control, 1998. [ bib | pdf ]
[1] I. Kolmanovsky, P. Moraal, M. van Nieuwstadt, , and A. Stefanopoulou. Issues in modeling and control of intake flow in variable geometry turbocharged engines. In Proceedings of the 18th IFIP conference on system modeling and optimization, page 436, 1997. [ bib | pdf ]

Powertrains for Connected Autonomous Vehicles (CAVs)

[3] Niket Prakash, Anna G. Stefanopoulou, Andrew Moskalik, and Matthew Brusstar. The hypothetical lead (hl) vehicle trace: A new method for evaluating fuel consumption in automated driving. In American Control Conference 2016, pages 3486 - 3491, 2016. [ bib | DOI | pdf ]
[2] Niket Prakash, Gionata Cimini, Anna G. Stefanopoulou, and Matthew J. Brusstar. Assessing fuel economy from automated driving: Influence of preview and velocity constraints. In in Proc. ASME 2016 Dynamic Systems and Control Conference, volume 2 of DSCC2016-9780, 2016. [ bib | DOI | pdf ]
[1] Y. Kim, B. McCain, and A. Stefanopoulou. Trajectory optimization for electrified trams without catenary cable. In IFAC Workshop on Engine and Powertrain Control Simulation and Modeling, August 2015. [ bib ]

Others

[5] Boyun Wang, A. Warnock, A.G. Stefanopoulou, and N.D. Katopodes. Model development for real time optimal control in pipe lines. In Proc. American Control Conference (ACC), pages 5536-5541, 2013. [ bib | DOI | pdf ]
[4] Boyun Wang, Anna G. Stefanopoulou, and Nikolaos D. Katopodes. Model and hardware development for predictive plume control in pipe lines. In Proc. ASME 2012 5th Annual Dynamic Systems and Control Conference, number DSCC2012-MOVIC2012-8857, pages 415-421, 2012. [ bib | DOI | pdf ]
[3] A. G. Stefanopoulou. Modeling and Control of Advanced Technology Engines. PhD thesis, University of Michigan, February 1996. [ bib | pdf ]
[2] M.G. Parsons, A.C. Chubb, Yusong Cao, and A.G. Stefanopoulou. An initial assessment of fuzzy logic vessel path control. In Autonomous Underwater Vehicle Technology, 1994. AUV '94., Proceedings of the 1994 Symposium on, pages 225-232, July 1994. [ bib | DOI | pdf ]
[1] S. Diop, J.W. Grizzle, P.E. Moraal, and A. Stefanopoulou. Interpolation and numerical differentiation for observer design. In American Control Conference, 1994, volume 2, pages 1329-1333, 1994. [ bib | DOI | pdf ]

Patents

US and International Patents Granted:

  1. US 9708991 “Real-Time Residual Mass Estimation with Adaptive Scaling,” J. Larimore, L. Jiang, E. Hellstrom, S. Jade, A. Stefanopoulou, J. Vanier, Assignee Bosch, issued 2017.
  2. US 977099 “Detection of Imbalance Across Multiple Battery Cells Measured by the Same Voltage Sensor” X. Lin, A. Stefanopoulou, R.D. Anderson, Y. Li, Assignee Ford, issued 2017.
  3. US 9429096 “Predictive Modeling and Reducing Cyclic Variability in Autoignition Engines,” E. Hellstrom, A. Stefanopoulou, L. Jiang, J. Larimore, filled 2014, issued 2016.
  4. US 9334818 “Mixed-Mode Combustion Control”, E. Hellstrom, A. Stefanopoulou, L. Jiang, J.S. Sterniak, N. Ravi, J. Oudart, J. Schwanke, Assignee Bosch, issued 2017.
  5. US 9376979B2 “Fuel Governor for Controlled Autoignition Engines,” S. Jade, E. Hellstrom, A. G. Stefanopoulou, L. Jiang, Assignee Bosch, issued June 2016.
  6. US 9228527 “Dynamic Estimator for Determining Operating Conditions in an Internal Combustion Engine,” E. Hellstrom, A. Stefanopoulou, L. Jiang, J. Larimore, Assignee Bosch, issued Jan 2016.
  7. US 9,200,583, Concurrently adjusting interrelated control parameters to achieve optimal engine performance. Li Jiang, Donghoon Lee, Hakan Yilmaz, Anna Stefanopoulou, Assignee Bosch, issued Dec 2015.
  8. US 9,097,197 “Defining a region of optimization based on engine usage data” L. Jiang, D. Lee, H. Yilmaz, A. Stefanopoulou, I Assignee Bosch, issued Aug 2015.
  9. US 8,924,125 “Perturbing engine performance measurements to determine optimal engine control settings” L. Jiang, D. Lee, H. Yilmaz, A. Stefanopoulou, Assignee Bosch, Dec 2014.
  10. US 8,874,351 "Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable" L. Jiang, D. Lee, H. Yilmaz, A. Stefanopoulou, Oct 2014.
  11. US 8,185,293 "Fuel Composition Recognition and Adaptation System," L. Jiang, N. Oliverio, A.G. Stefanopoulou, H. Yilmaz, May 2012.
  12. US 6,681,728 "Method for controlling an electromechanical actuator for Fuel Air Charge Valve," K.S. Peterson, A.G. Stefanopoulou, T. Megli, Y Wang, M. Haghgooie, Jan 2004.
  13. US 6,579,206 "Coordinated control for a powertrain with a continuously variable transmission," Sharon Liu, Anna Stefanopoulou, June 2003.
  14. US 6,568,173 B1 "Control method for turbocharged diesel engine aftertreatment system", Ilya Kolmanovsky, Anna Stefanopoulou, June 2003.
  15. U.S. 6,186,124 "System and Method For Controlling Camshaft Timing, Air/Fuel Ratio, and Throttle Position in an Automotive Internal Combustion Engine", A.G. Stefanopoulou and M. Jankovic. This application is a divisional of Ser. No. 09/005,571, now U.S. Pat. No. 6,006,725, Feb 2001.
  16. U.S. 6,076,353 "A Method for Coordination and Calibration of Variable Geometry Turbocharger and Exhaust Gas Recirculation in Diesel Engines", J. S. Freudenberg, I. V. Kolmanovsky, A. G. Stefanopoulou, Jan 1999.
  17. U.S. 6,006,725 "System and Method For Controlling Camshaft Timing, Air/Fuel Ratio, and Throttle Position in an Automotive Internal Combustion Engine", M. Jankovic, A.G. Stefanopoulou, Jan 1998.
  18. U.S. 5,787,848 "A Method of System for Operating An Internal Combustion Engine Having Variable Valve Timing", A. G. Stefanopoulou, I. V. Kolmanovsky, Dec 1997.
  19. U.S. 5,755,202 "A Method for Reducing Feedgas Emissions", A. G. Stefanopoulou, K.R. Butts, Oct 1996.

US and International Patents Applied:

  1. US Patent Application: 20150147608 “Estimating Core Temperatures of Battery Cells in a Battery Pack”, X. Lin, Y. Ding, M. Castanier, A. Stefanopoulou, Filed May 2013.
  2. US Patent Application: 2016033479 “Bulk force in a battery pack and its application to state of charge estimation,” Youngki Kim, Shankar Mohan, Jason Siegel, Anna Stefanopoulou, PCT 14/839,096, Filed Aug 2015.
  3. US Patent Application: 2016090267 “Energy Conscious Warm-Up of Lithium-Ion Cells from Sub-Zero Temperatures,” Shankar Mohan, Youngki Kim, Anna Stefanopoulou, Jason Siegel, Yi Ding, Sonya Zanardelli, Wes Zanardelli, PCT/US15/64032, Filed Dec 2015.
  4. Provisional patent application 62163437 “Prediction of Stable Combustion Zone Based on Externally Initiated Flame Kernel and Interaction with Turbulence,” Huan Lian, Jason Martz, Anna Stefanopoulou, OTT# 6665.
  5. U.S. Patent Application No. 62/257,654 “Battery State of Health Estimation Using Force in Incremental Capacity Analysis,” Nassim Samad, YoungKi Kim, Jason Siegel, Anna Stefanopoulou, November 2015, UM 6840.

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Last Updated: Jan. 2019 - AgS