Abstract
This paper presents a power management strategy to minimize the fuel consumption of a heavy-duty series hybrid electric vehicle. The vehicle model, which consists of a CNG engine, a generator, two driving motors and a battery, is developed and validated with experimental data. Dynamic programming (DP) is applied to design a control algorithm optimizing fuel consumption of the series hybrid electric vehicle. By imitating the behavior of the DP control signal, a rule-based control algorithm is proposed. The controller actuates the CNG engine, generator, and battery to minimize fuel consumption and maintain the battery state of charge within a proper region. Simulation studies and experiments are conducted for typical driving modes to investigate the performance of the proposed power management strategy. Results indicate that fuel economy can be enhanced by approximately 30% using the proposed power management strategy to the series hybrid electric vehicle over the conventional vehicle.
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Recommended by Associate Editor Bongsob Song
Seungjae Yun received his B.S. and M.S. degrees in Mechanical and Aerospace Engineering from Seoul National University, Korea, in 2009 and 2011, respectively. He is currently a Ph.D. student in Mechanical and Aerospace Engineering at the Seoul National University, Korea. His research interests involve hybrid electric systems and efficient driving control.
Kangwon Lee received his B.S. and M.S. degrees in Mechanical Engineering from Yonsei University, Korea, in 1989 and 1993, respectively, and his Ph.D. from the University of Michigan, Ann Arbor, in 2004. Currently, Dr. Lee is an Associate Professor at the Korea Polytechnic University, Korea. His major research interests are vehicle control systems, driver models, and active safety systems.
Kyongsu Yi received his B.S. and M.S. degrees in Mechanical Engineering from Seoul National University, Korea, in 1985 and 1987, respectively, and his Ph.D. degree in Mechanical Engineering from the University of California, Berkeley, in 1992. Dr. Yi is a Professor at the School of Mechanical and Aerospace Engineering at Seoul National University, Korea. He currently serves as a member of the editorial boards of the KSME, IJAT, and ICROS journals. Dr. Yi’s research interests include control systems, driver assistant systems, and active safety systems of a ground vehicle.
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Yun, S., Lee, K. & Yi, K. Development of a power management strategy to minimize the fuel consumption of a heavy-duty series hybrid electric vehicle. J Mech Sci Technol 29, 4399–4406 (2015). https://doi.org/10.1007/s12206-015-0938-8
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DOI: https://doi.org/10.1007/s12206-015-0938-8