Abstract:
This study proposes a robust SOC estimation scheme for lithium-ion batteries in commercialized electric vehicles: pure electric vehicles and hybrid electric vehicles. Dev...Show MoreMetadata
Abstract:
This study proposes a robust SOC estimation scheme for lithium-ion batteries in commercialized electric vehicles: pure electric vehicles and hybrid electric vehicles. Development of a nonlinear-model-based robust SOC estimation method and comprehensive performance comparison with the existing SOC estimation methods under the two kinds of operating scenarios are considered. The features of the results of this study are summarized as follows: a) a robust SOC estimator is designed to deal with the model uncertainty and parameter variation, b) an analysis of asymptotic stability of the proposed robust SOC estimator is provided and c) a comprehensive analysis was performed not only on the different aging levels of battery cells but also on the different operational conditions of the electrified vehicles. The effectiveness of the proposed SOC estimation method was experimentally verified using two 18 650 cylindrical battery cells with different degradation levels. The proposed SOC estimation scheme ensures considerable accuracy under both pure electric vehicle operating mode and hybrid vehicle operating mode even if the battery cell is aged.
Published in: IEEE Transactions on Vehicular Technology ( Volume: 70, Issue: 6, June 2021)
Funding Agency:
Department of Robotics and Automation Engineering, Hoseo University, Dangjin Chungcheongnam-do, South Korea
Wooyong Kim received the B.S. degree from the Department of Mechanical System and Design Engineering, Seoul National University of Science and Technology, Seoul, South Korea, in 2014, and the M.S. degree in robotics program and the Ph.D. degree in mechanical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2016 and 2020, respectively. From 2020 to 2021, he was a Pos...Show More
Wooyong Kim received the B.S. degree from the Department of Mechanical System and Design Engineering, Seoul National University of Science and Technology, Seoul, South Korea, in 2014, and the M.S. degree in robotics program and the Ph.D. degree in mechanical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2016 and 2020, respectively. From 2020 to 2021, he was a Pos...View more
Department of Electrical Engineering, Chungnam National University, Daejeon, South Korea
Pyeong-Yeon Lee received the B.S. degree from the Department of Electrical Engineering, Chosun University, Gwangju, South Korea, in 2017 and the M.S. degree in 2019 from the Department of Electrical Engineering, Chungnam National University, Daejeon, South Korea, where he is currently working toward the Ph.D. degree. His research interests include screening of the battery pack and SOC/SOH estimation of battery management ...Show More
Pyeong-Yeon Lee received the B.S. degree from the Department of Electrical Engineering, Chosun University, Gwangju, South Korea, in 2017 and the M.S. degree in 2019 from the Department of Electrical Engineering, Chungnam National University, Daejeon, South Korea, where he is currently working toward the Ph.D. degree. His research interests include screening of the battery pack and SOC/SOH estimation of battery management ...View more
Department of Electrical Engineering, Chungnam National University, Daejeon, South Korea
Jonghoon Kim received the B.S. degree from Chungnam National University, Daejeon, South Korea, in 2005 and the Ph.D. degree in electrical engineering and computer science from Seoul National University, Seoul, South Korea, in 2012. From 2012 to 2013, he was a Senior Research Engineer with the Energy Storage System Development Group, Energy Solution Division, Samsung SDI, Cheonnan, South Korea. From 2013 to 2016, he was an...Show More
Jonghoon Kim received the B.S. degree from Chungnam National University, Daejeon, South Korea, in 2005 and the Ph.D. degree in electrical engineering and computer science from Seoul National University, Seoul, South Korea, in 2012. From 2012 to 2013, he was a Senior Research Engineer with the Energy Storage System Development Group, Energy Solution Division, Samsung SDI, Cheonnan, South Korea. From 2013 to 2016, he was an...View more
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
Kyung-Soo Kim received the B.S., M.S., and Ph.D. degrees in mechanical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 1993, 1995, and 1999, respectively. He was the Chief Researcher with LG Electronics, Inc., from 1999 to 2003, and the DVD Front-End Manager with STMicroelectronics Company Ltd., from 2003 to 2005. In 2005, he joined the Department of Mechanical Eng...Show More
Kyung-Soo Kim received the B.S., M.S., and Ph.D. degrees in mechanical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 1993, 1995, and 1999, respectively. He was the Chief Researcher with LG Electronics, Inc., from 1999 to 2003, and the DVD Front-End Manager with STMicroelectronics Company Ltd., from 2003 to 2005. In 2005, he joined the Department of Mechanical Eng...View more
Contents Department of Robotics and Automation Engineering, Hoseo University, Dangjin Chungcheongnam-do, South Korea
Wooyong Kim received the B.S. degree from the Department of Mechanical System and Design Engineering, Seoul National University of Science and Technology, Seoul, South Korea, in 2014, and the M.S. degree in robotics program and the Ph.D. degree in mechanical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2016 and 2020, respectively. From 2020 to 2021, he was a Postdoctoral Researcher with the Center for Eco-friendly & Smart Vehicles, KAIST. He is currently an Assistant Professor with the Department of Robotics and Automation Engineering, Hoseo University, Dangjin, South Korea. His research interests include automatic control, electric vehicles, energy storage systems, and battery management systems.
Wooyong Kim received the B.S. degree from the Department of Mechanical System and Design Engineering, Seoul National University of Science and Technology, Seoul, South Korea, in 2014, and the M.S. degree in robotics program and the Ph.D. degree in mechanical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2016 and 2020, respectively. From 2020 to 2021, he was a Postdoctoral Researcher with the Center for Eco-friendly & Smart Vehicles, KAIST. He is currently an Assistant Professor with the Department of Robotics and Automation Engineering, Hoseo University, Dangjin, South Korea. His research interests include automatic control, electric vehicles, energy storage systems, and battery management systems.View more
Department of Electrical Engineering, Chungnam National University, Daejeon, South Korea
Pyeong-Yeon Lee received the B.S. degree from the Department of Electrical Engineering, Chosun University, Gwangju, South Korea, in 2017 and the M.S. degree in 2019 from the Department of Electrical Engineering, Chungnam National University, Daejeon, South Korea, where he is currently working toward the Ph.D. degree. His research interests include screening of the battery pack and SOC/SOH estimation of battery management system (BMS).
Pyeong-Yeon Lee received the B.S. degree from the Department of Electrical Engineering, Chosun University, Gwangju, South Korea, in 2017 and the M.S. degree in 2019 from the Department of Electrical Engineering, Chungnam National University, Daejeon, South Korea, where he is currently working toward the Ph.D. degree. His research interests include screening of the battery pack and SOC/SOH estimation of battery management system (BMS).View more
Department of Electrical Engineering, Chungnam National University, Daejeon, South Korea
Jonghoon Kim received the B.S. degree from Chungnam National University, Daejeon, South Korea, in 2005 and the Ph.D. degree in electrical engineering and computer science from Seoul National University, Seoul, South Korea, in 2012. From 2012 to 2013, he was a Senior Research Engineer with the Energy Storage System Development Group, Energy Solution Division, Samsung SDI, Cheonnan, South Korea. From 2013 to 2016, he was an Assistant Professor with the Department of Electrical Engineering, Chosun University, Gwangju, South Korea. Since 2016, he has been an Associate Professor with the Department of Electrical Engineering, Chungnam National University. Since 2018, he has been an Adjunct Professor with Eco-Friendly Smart Car Research Center, Korea Advanced Institute of Science and Technology, Daejeon, South Korea. His main research interests include battery management system (SOx estimation, prediction algorithms, equalization, and screening), next generation battery (lithium-air battery, lithium-sulfur battery, vanadium redox flow battery, solid-state battery, aluminum-ion battery, and sodium-ion/sulfur batteries), xEV retired battery (second-use), energy storage system (ESS), fault diagnosis, thermal management, artificial intelligence, power electronics circuits, and fuel cell system (ripple current analysis and energy management system).
Jonghoon Kim received the B.S. degree from Chungnam National University, Daejeon, South Korea, in 2005 and the Ph.D. degree in electrical engineering and computer science from Seoul National University, Seoul, South Korea, in 2012. From 2012 to 2013, he was a Senior Research Engineer with the Energy Storage System Development Group, Energy Solution Division, Samsung SDI, Cheonnan, South Korea. From 2013 to 2016, he was an Assistant Professor with the Department of Electrical Engineering, Chosun University, Gwangju, South Korea. Since 2016, he has been an Associate Professor with the Department of Electrical Engineering, Chungnam National University. Since 2018, he has been an Adjunct Professor with Eco-Friendly Smart Car Research Center, Korea Advanced Institute of Science and Technology, Daejeon, South Korea. His main research interests include battery management system (SOx estimation, prediction algorithms, equalization, and screening), next generation battery (lithium-air battery, lithium-sulfur battery, vanadium redox flow battery, solid-state battery, aluminum-ion battery, and sodium-ion/sulfur batteries), xEV retired battery (second-use), energy storage system (ESS), fault diagnosis, thermal management, artificial intelligence, power electronics circuits, and fuel cell system (ripple current analysis and energy management system).View more
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
Kyung-Soo Kim received the B.S., M.S., and Ph.D. degrees in mechanical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 1993, 1995, and 1999, respectively. He was the Chief Researcher with LG Electronics, Inc., from 1999 to 2003, and the DVD Front-End Manager with STMicroelectronics Company Ltd., from 2003 to 2005. In 2005, he joined the Department of Mechanical Engineering, Korea Polytechnic University, Gyeonggi, South Korea, as an Assistant Professor. Since 2007, he has been a Professor with the Department of Mechanical Engineering, KAIST, where he is currently the Head of the CCS Graduate School of Green Transportation. His research interests include digital system design for controlled mechatronics, actuator design, and control theory, such as robust controls and sliding mode controls.
Kyung-Soo Kim received the B.S., M.S., and Ph.D. degrees in mechanical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 1993, 1995, and 1999, respectively. He was the Chief Researcher with LG Electronics, Inc., from 1999 to 2003, and the DVD Front-End Manager with STMicroelectronics Company Ltd., from 2003 to 2005. In 2005, he joined the Department of Mechanical Engineering, Korea Polytechnic University, Gyeonggi, South Korea, as an Assistant Professor. Since 2007, he has been a Professor with the Department of Mechanical Engineering, KAIST, where he is currently the Head of the CCS Graduate School of Green Transportation. His research interests include digital system design for controlled mechatronics, actuator design, and control theory, such as robust controls and sliding mode controls.View more
