Publications

Journal Paper

  1. Eunjeong Hyeon, Tulga Ersal, Youngki Kim, and Anna Stefanopoulou, “Loss Function Design for Data-Driven Predictors to Enhance the Energy Efficiency of Connected and Automated Vehicles,” IEEE Transactions on Intelligent Transportation Systems, 2022, doi: 10.1109/TITS.2022.3216748

  2. Gyouho Cho, Mengqi Wang, Youngki Kim, Jaerock Kwon, and Wencong Su, “A Physics-Informed Machine Learning Approach for Estimating Lithium-Ion Battery Temperature,” IEEE Access, vol. 10, pp. 88117-88126, 2022, doi: 10.1109/ACCESS.2022.3199652

  3. Isaiah Oyewole, Abdallah Chehade, and Youngki Kim, “A controllable deep transfer learning network with multiple domain adaptation for battery state-of-charge estimation,” Applied Energy, vol. 312, p.118726, 2022. doi: 10.1016/j.apenergy.2022.118726

  4. Di Chen, Mike Huang, Anna G. Stefanopoulou, and Youngki Kim, “Co-Optimization of Velocity and Charge-Depletion for Plug-In Hybrid Electric Vehicles: Accounting for Acceleration and Jerk Constraints,” Journal of Dynamic Systems Measurement and Control, vol. 144, no. 1, p.011107, 2022. doi: 10.1115/1.4053139

  5. Eunjeong Hyeon, Youngki Kim, Tulga Ersal, and Anna Stefanopoulou, “Data-driven forgetting and discount factors for vehicle speed forecasting in ecological adaptive cruise control,” Journal of Dynamic Systems Measurement and Control, vol. 144, no. 1, p.011101, 2022. doi:10.1115/1.4052272

  6. Youngro Lee, Dae Young Lee, Seung Hwan Lee, and Youngki Kim, “A Comparative Study on Model Predictive Control Design for Highway Car-following Scenarios: Space-domain and Time-domain Model,” IEEE Access, vol. 9, pp. 162291-162305, 2021. doi: 10.1109/ACCESS.2021.3131681

  7. Yu He, Youngki Kim, Dae Young Lee, and Sang-Hwan Kim, “Defensive Ecological Adaptive Cruise Control Considering Neighboring Vehicles’ Blind-Spot Zones,” IEEE Access, vol. 9, pp. 152275-152287, 2021. doi: 10.1109/ACCESS.2021.3127171

  8. Youyi Chen, Kyoung Hyun Kwak, Jaewoong Kim, Youngki Kim, and Dewey Jung, “Energy-efficient cabin climate control of electric vehicles using linear time-varying model predictive control,” Optimal Control Applications and Methods, pp. 1-25, 2021. doi: 10.1002/oca.2816

  9. Yu He, Kyoung Hyun Kwak, Youngki Kim, Dewey Jung, Jason Lee, and Jinho Ha, “Real-time Torque-split Strategy for P0+P4 Mild Hybrid Vehicles with eAWD Capability,” IEEE Transactions on Transportation Electrification, vol. 8, no. 1, pp. 1401-1413, 2021. doi:10.1109/TTE.2021.3103149

  10. Suhak Lee, Youngki Kim, Jason B. Siegel and Anna G. Stefanopoulou, “Optimal control for fast acquisition of equilibrium voltage for Li-ion batteries,” Journal of Energy Storage, vol. 40, p.102814, 2021. doi: 10.1016/j.est.2021.102814

  11. Zhongwei Deng, Xiaosong Hu, Xianke Lin, Youngki Kim and Jiacheng Li, “Sensitivity Analysis and Joint Estimation of Parameters and States for All-Solid-State Batteries,” IEEE Transactions on Transportation Electrification, vol. 7, no. 3, pp. 1314-1323, 2021. doi:10.1109/TTE.2021.3050987

  12. Isaiah Oyewole, Kyoung Hyun Kwak, Youngki Kim and Xianke Lin, “Optimal Discretization Approach to the Enhanced Single Particle Model for Li-ion Batteries,” IEEE Transactions on Transportation Electrification, vol. 7, no. 2, pp. 369-381, 2021. doi: 10.1109/TTE.2020.3016209

  13. Di Chen, Mike Huang, Anna Stefanopoulou and Youngki Kim, “A Receding-Horizon Framework for Co-Optimizing the Velocity and Power-Split of Automated Plug-In Hybrid Electric Vehicles,” ASME Letters in Dynamic Systems and Control, vol. 1, no. 4, p.041006, 2021. doi:10.1115/1.4050191 ATS Best Paper Finalist at the 2020 Dynamic Systems and Control Conference (New Journal)

  14. Olaoluwa Ojo, Haoxiang Lang, Youngki Kim, Xiaosong Hu, Bingxian Mu and Xianke Lin, “A neural network-based method for thermal fault detection in lithium-ion batteries,” IEEE Transactions on Industrial Electronics, vol. 68, no. 5, pp. 4068-4078, 2021. doi: 10.1109/TIE.2020.2984980

  15. Di Chen, Youngki Kim and Anna Stefanopoulou, “Predictive Equivalent Consumption Minimization Strategy With Segmented Traffic Information,” IEEE Transactions on Vehicular Technology, vol. 69, no. 12, pp. 14377-14390, 2020. doi: 10.1109/TVT.2020.3034552

  16. Youngki Kim, Miriam Figueroa-Santos, Niket Prakash, Stanley Baek, Jason B. Siegel and Denise M. Rizzo, “Co-optimization of speed trajectory and power management for a fuel-cell/battery electric vehicle,” Applied Energy, vol. 260, p.114254, 2020. doi: 10.1016/j.apenergy.2019.114254

  17. Xianke Lin, Siyang Wang and Youngki Kim, “A framework for charging strategy optimization using a physics-based battery model,” Journal of Applied Electrochemistry, pp. 1-15, 2019, doi:10.1007/s10800-019-01322-1

  18. Youngki Kim, Xianke Lin, Armin Abbasalinejad, Sun Ung Kim and Seung Hyun Chung, “On state estimation of all solid-state batteries,” Electrochimica Acta, vol. 317, pp. 663-672, 2019, doi:10.1016/j.electacta.2019.06.023

  19. Xinfan Lin, Youngki Kim, Shankar Mohan, Jason B. Siegel Anna G. Stefanopoulou, “Modeling and Estimation for Advanced Battery Management,” Annual Review of Control, Robotics, and Autonomous Systems, vol. 2, pp. 393-426, 2019, doi: 10.1146/annurev-control-053018-023643 (New Journal)

  20. Niket Prakash, Youngki Kim and A. Stefanopoulou , “A Comparative Study of Different Objectives Functions for the Minimal Fuel Drive Cycle Optimization in Autonomous Vehicles,” Journal of Dynamic Systems Measurement and Control, vol. 141, no. 7, p.071011, 2019, doi:10.1115/1.4043189

  21. Hadi Abbas, Youngki Kim, Jason B. Siegel and Denise M. Rizzo, “Synthesis of Pontryagin’s Maximum Principle Analysis for Speed Profile Optimization of Electrified Vehicles,” Journal of Dynamic Systems, Measurement, and Control, vol. 141, no. 7, p.071004, 2019, doi:10.1115/1.4043117

  22. Nassim A. Samad, Youngki Kim and Jason B. Siegel, “On Power Denials and Lost Energy Opportunities in Downsizing Battery Packs in Hybrid Electric Vehicles,” Journal of Energy Storage, vol. 16, pp. 187-196, 2018, doi: 10.1016/j.est.2018.01.013

  23. Paul Dekraker, Mark Stuhldreher and Youngki Kim, “Characterizing Factors Influencing SI Engine Transient Fuel Consumption for Vehicle Simulation in ALPHA,” SAE International Journal of Engines, vol. 10, no. 2, pp. 529-540, 2017, doi: 10.4271/2017-01-0533

  24. Ki-Yong Oh, Nassim A. Samad, Youngki Kim, Jason B. Siegel, Anna G. Stefanopoulou, and Bogdan I. Epureanu, “A novel phenomenological multi-physics model of Li-ion battery cells,” Journal of Power Sources, vol. 326, no. 15, pp. 447-458, 2016, doi: 10.1016/j.jpowsour.2016.07.019

  25. Nassim A. Samad, Youngki Kim, Jason B. Siegel, Anna G. Stefanopoulou, “Battery capacity fading estimation using a force-based incremental capacity analysis,” Journal of The Electrochemical Society, vol. 163, no. 8, pp. A1584-A1594, 2016, doi: 10.1149/2.0511608jes

  26. Shankar Mohan, Youngki Kim and Anna G. Stefanopoulou, “Estimating the Power Capability of Li-ion Batteries Using Informationally Partitioned Estimators,” IEEE Transactions on Control Systems Technology, vol. 24, no. 5, pp. 1643-1654, 2016, doi: 10.1109/TCST.2015.2504847

  27. Shankar Mohan, Youngki Kim and Anna G. Stefanopoulou, “Energy-conscious warm-up of Li-ion cells from Sub-zero Temperatures,” IEEE Transactions on Industrial Electronics, vol. 63, no. 5, pp. 954-2964, 2016, doi: 10.1109/TIE.2016.2523440

  28. Youngki Kim, Ashwin Salvi, Anna G. Stefanopoulou, and Tulga Ersal, “Reducing Soot Emissions in a Diesel Series Hybrid Electric Vehicle using a Power Rate Constraint Map,” IEEE Transactions on Vehicular Technology, vol. 64, no. 1, pp. 2-12, 2015, doi: 10.1109/TVT.2014.2321346

  29. 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, vol. 161, no. 14, pp. A2222-31, 2014, doi:10.1149/2.0841414jes

  30. Tulga Ersal, Mark Brudnak, Ashwin Salvi, Youngki Kim, Jason B. Siegel and Jeffrey L. Stein, “An iterative learning control approach to improving fidelity in internet-distributed hardware-in-the-loop simulation,” Journal of Dynamic Systems Measurement and Control, vol. 136, no. 6, pp. 061012-061012-8, 2014, doi: 10.1115/1.4027868

  31. Youngki Kim, Ashwin Salvi, Jason B. Siegel, Zoran Filipi, Anna G. Stefanopoulou and Tulga Ersal, “Hardware-in-the-Loop Validation of a Power Management Strategy for Hybrid Powertrains,” Control Engineering Practice, vol. 29, pp. 277-286, 2014, doi: 10.1016/j.conengprac.2014.04.008

  32. Youngki Kim, Shankar Mohan, Jason B. Siegel, Anna G. Stefanopoulou and Yi Ding, “The Estimation of Temperature Distribution in Cylindrical Battery Cells under Unknown Cooling Conditions,” IEEE Transactions on Control Systems Technology, vol. 22, no. 6, 2014, doi:10.1109/TCST.2014.2309492Tae-Kyoung Lee, Youngki Kim, Denise M. Rizzo, and Zoran S. Filipi, “Battery Power Management in Heavy-duty HEVs based on the Estimated Critical Surface Charge,” International Journal of Vehicle Design, vol. 61, pp. 108-126, 2013, doi: 10.1504/IJVD.2013.050842

  33. Youngki Kim, Tae-Kyoung Lee and Zoran S. Filipi, “Frequency Domain Power Distribution Strategy for Series Hybrid Electric Vehicles,” SAE International Journal of Alternative Powertrains, vol. 1, no. 1, pp. 208-218, 2012, doi:10.4271/2012-01-1003 (New Journal Title: SAE International Journal of Electrified Vehicles)

Conference Paper

  1. Kyoung Hyun Kwak, Yu He, Youngki Kim, Yue Ming Chen, Shilong Fan, Justin Holmer, and Jason H. Lee, “Desired Relative Distance Model-based Personalized Braking Algorithm for One-pedal Driving of Electric Vehicle,” IFAC-Papers Online, vol. 55, no. 37, pp. 62-67, 2022

  2. Youyi Chen, Kyoung Hyun Kwak, Jaewoon Kim, Dewey Jung, and Youngki Kim, “Control-oriented Model of HVAC and Battery Cooling Systems in Electric Vehicles,” IFAC-Papers Online, vol. 55, no. 37, pp. 44-49, 2022

  3. Eunjeong Hyeon, Tulga Ersal, Youngki Kim and Anna G. Stefanopoulou, “Designing the Loss Function of Vehicle Speed Predictors to Enhance Ecological Adaptive Cruise Control Performance,” in Proceedings of 2022 American Control Conference (ACC), pp. 2424-2429, 2022

  4. Di Chen and Youngki Kim, “A Comparative Study of H∞ and Model Predictive Control Approach to Eco-Driving,” in Proceedings of the 2021 Modeling, Estimation and Control Conference, IFAC-PapersOnLine, vol. 54, no. 20, pp. 889-894, 2021

  5. Kyoung Hyun Kwak, Jaewoong Kim, Youyi Chen, Youngki Kim and Dewey Jung, “Economic Model Predictive Control of HVAC System in Electric Vehicles,” in Proceedings of the 2021 Modeling, Estimation and Control Conference, IFAC-PapersOnLine, vol. 54, no. 20, pp. 852-857, 2021

  6. Gyouho Cho, Youngki Kim, Jaerock Kwon, Wencong Su and Mengqi Wang, “Impact of Data Sampling Methods on the Performance of Data-driven Parameter Identification for Lithium ion Batteries," in Proceedings of the 2021 Modeling, Estimation and Control Conference, IFAC-PapersOnLine, vol. 54, no. 20, pp. 534-539, 2021

  7. Miriam Figueroa-Santos, Valentin Sulzer, Youngki Kim, Jason Siegel, Anna Stefanopoulou and Denise M Rizzo, “Airflow and Power-Split Control Strategy for a Fuel Cell Hybrid Powered Robot,” in Proceedings of the 2021 Modeling, Estimation and Control Conference, IFAC-PapersOnLine, vol. 54, no. 20, pp. 387-392, 2021

  8. Isaiah Oyewole, Mayuresh Savargaonkar, Abdallah Chehade and Youngki Kim, “A hybrid long short-term memory network for state-of-charge estimation of Li-ion batteries,” in Proceedings of 2021 IEEE Transportation Electrification Conference & Expo (ITEC), pp. 469-473, 2021

  9. Di Chen, Youngki Kim and Eunjeong Hyeon, “Receding-Horizon Safe Co-Optimization of the Velocity and Power-split of Plug-in Hybrid Electric Vehicles with Imperfect Prediction,” in Proceedings of 2021 American Control Conference (ACC), pp. 1848-1854, 2021. ATS Best Paper at the 2021 American Control Conference

  10. Eunjeong Hyeon, Youngki Kim, and Anna G Stefanopoulou, “Fast Risk-Sensitive Model Predictive Control for Systems with Time-Series Forecasting Uncertainties,” in Proceedings of the 59th IEEE Conference on Decision and Control (CDC), pp. 2515-2520, 2020

  11. Suhak Lee and Youngki Kim, “Li-ion Battery Electrode Health Diagnostics using Machine Learning,” in Proceedings of the 2020 American Control Conference (ACC), pp. 1137-1142, 2020

  12. Di Chen, Youngki Kim, Mike Huang, and Anna Stefanopoulou, “An Iterative and Hierarchical Approach to Co-optimizing the Velocity Profile and Power-split of Plug-in Hybrid Electric Vehicles,” in Proceedings of the 2020 American Control Conference (ACC), pp. 3059-3064, 2020

  13. Jaewoong Kim, Rodolfo Rodriguez, Kyoung Hyun Kwak, Dewey Jung, and Youngki Kim, “The Effect of Driver's Behavior and Environmental Conditions on Thermal Management of Electric Vehicles,” SAE Technical Paper 2020-01-1382, 2020

  14. Eunjeong Hyeon, Youngki Kim, Niket Prakash and Anna G. Stefanopoulou, “Influence of Speed Forecasting on the Performance of Ecological Adaptive Cruise Control,” in Proceedings of the ASME 2019 Dynamic Systems and Control Conference, p. V001T08A003, 2019

  15. Kushagra Upreti, Isaiah Oyewole, Xianke Lin and Youngki Kim, “On Simplification of a Solid-State Battery Model for State Estimation,” in Proceedings of the IEEE Conference on Control Technology and Applications, Hong Kong, China, pp. 487-492, 2019.

  16. Hadi Abbas, Youngki Kim, Jason B. Siegel and Denise M. Rizzo, “Sensitivity of Energy-Efficient Driving to Motor Efficiency for EVs,” in Proceedings of the IEEE Conference on Control Technology and Applications, Hong Kong, China, pp. 738-743, 2019

  17. Suhak Lee, Youngki Kim, Jason B. Siegel, and Anna G. Stefanopoulou, “Minimum-Time Measurement of Open Circuit Voltage of Battery Systems,” in Proceedings of the 2019 American Control Conference, pp. 884-889, 2019

  18. Eunjeong Hyeon, Youngki Kim, Niket Prakash, and Anna G. Stefanopoulou, “Short-term Speed Forecasting Using Vehicle Wireless Communications,” in Proceedings of the 2019 American Control Conference, pp. 736-741, 2019

  19. Hadi Abbas, Youngki Kim, Jason B. Siegel, and Denise M. Rizzo, “Optimization of Energy-Efficient Speed Profile for Electrified Vehicles,” in Proceedings of the ASME 2018 Dynamic Systems and Control Conference, p. V002T15A006, 2018

  20. Di Chen, Niket Prakash, Anna G. Stefanopoulou, Mike Huang, Youngki Kim and Scott R. Hotz, ``Sequential Optimization of Velocity and Charge Depletion in a Plug-in Hybrid Electric Vehicle," in Proceedings of the 14th International Symposium on Advanced Vehicle Control, 2018

  21. Niket Prakash, Youngki Kim, Denise M. Rizzo, Matt Brusstar, and Jason B. Siegel, “Role of Regenerative Braking in Velocity Trajectory Optimization of an Electric Powertrain,” in Proceedings of the IEEE Conference on Control Technology and Applications, pp. 1014-1019, 2018

  22. Di Chen, Youngki Kim, and Anna G. Stefanopoulou, “SOC Node Planning for PHEVs with Segmented Traffic Information,” in Proceedings of the 2018 American Control Conference, pp. 4969-4974, 2018

  23. Gionata Cimini, Youngki Kim, Buz McCain, Jason B. Sigel, and Anna G. Stefanopoulou, “Model Predictive Control for Real-Time Position Tracking of a Catenary-Free Tram,” in Proceedings of the 20th IFAC World Congress, IFAC-PapersOnLine, vol. 50, no. 1, pp. 1000-1005, 2017

  24. Youngki Kim, Nassim A. Samad, Ki-Yong Oh, Jason B. Siegel, Bogdan I. Epureanu and Anna G. Stefanopoulou, “Estimating State-of-Charge Imbalance of Batteries using Force Measurements,” in Proceedings of the 2016 American Control Conference, pp. 1500-1505, 2016

  25. Nassim A. 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 Proceedings of the IEEE 2015 Vehicular Power and Propulsion Conference, pp. 1-6, 2015

  26. Shankar Mohan, Youngki Kim, and Anna G. Stefanopoulou, “On Improving Battery State of Charge Estimation using Bulk Force Measurements,” in Proceedings of the 2015 ASME Dynamic Systems Control Conference, p. V001T13A010, 2015

  27. Shankar Mohan, Youngki Kim, Anna G. Stefanopoulou, and Y. Ding, “On the Warmup of Li-Ion Cells from Sub-Zero Temperatures,” in Proceedings of the 2014 American Control Conference, pp. 1547–1552, 2014

  28. Youngki Kim, Shankar Mohan, Nassim A. Samad, Jason B. Siegel, and Anna G. Stefanopoulou, “Optimal Power Management for a Series Hybrid Electric Vehicle Cognizant of Battery Mechanical Effects,” in Proceedings of the 2014 American Control Conference, pp. 3832–3837, 2014. (Best Session Presentation)

  29. Youngki Kim, Shankar Mohan, Jason B. Siegel, Anna G. Stefanopoulou, and Y. Ding, “The Estimation of Radial Temperature Distribution in Cylindrical Battery Cells under Unknown Cooling Conditions,” in Proceedings of the IEEE 2013 Conference on Decision and Control, pp. 5680-5685, 2013

  30. 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 Proceedings of the 2013 ASME Dynamic Systems Control Conference, p. V002T23A003, 2013

  31. Youngki Kim, Jason B. Siegel, and Anna G. Stefanopoulou, “A computationally efficient thermal model of cylindrical battery cells for the estimation of radially distributed temperatures,” in Proceedings of the 2013 American Control Conference, pp. 698-703, 2013

  32. Youngki Kim, Tulga Ersal, Ashwin Salvi, Zoran Filipi, and Anna Stefanopoulou, “Engine-in-the-Loop Validation of a Frequency Domain Power Distribution Strategy for Series Hybrid Powertrains,” in Proceedings of IFAC Workshop on Engine and Powertrain Control Simulation and Modeling, pp. 432-439, 2012

  33. Tulga Ersal, Youngki Kim, Ashwin Salvi, Jason B. Siegel, Anna Stefanopoulou, Jeffrey L. Stein, Mark J. Brudnak, and Zoran Filipi, “A Method to Achieve High Fidelity in Internet-distributed Hardware-in-the-loop Simulation,” 2012 Ground Vehicle Systems Engineering and Technology Symposium, August 14 - 16, 2012, Troy, Michigan

  34. Kan Zhou, Jason Pries, Heath Hofmann, Youngki Kim, Tae-Kyoung Lee, and Zoran Filipi, “Computationally Efficient Finite-Element-Based Thermal Models of Electric Machines,” in Proceedings of the IEEE 2011 Vehicle Power and Propulsion Conference, pp. 1-6, 2011

  35. Tae-Kyoung Lee, Youngki Kim, Anna Stefanopoulou, and Zoran Filipi, “Hybrid electric vehicle supervisory control design reflecting estimated lithium-ion battery electrochemical dynamics,” in Proceedings of the 2011 American Control Conference, pp. 388395, 2011

  36. Teockhyeong Cho, Youngki Kim, Jaeheon Kim, and Koo-tae Kang, “An Optimization of Dual Continuously Variable Valve Timing for Reduction of Intake Orifice Noise of Engine,” SAE Technical Paper 2008-01-0892, 2008

  37. Youngki Kim, Teockhyeong Cho, Jaeheon Kim, and Koo-tae Kang, “Development of Sound Quality for a Vehicle by Controlling CVVT,” in Proceedings of the Korean Society for Noise and Vibration Engineering Conference, pp. 622-625, 2007

  38. Young-Ki Kim, Yeon-June Kang, Ok-Kyun Ahn, Ji-Hyeon Ki and Yoon-Bong Choi, “A Suggestion of Method to reduce the Radiation Efficiency of Dash Panel of a Passenger Car,” in Proceedings of the Korean Society for Noise and Vibration Engineering Conference, pp. 268-272, 2002