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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on as a courtesy and upon agreement with AVERE.
Open AccessAbstract

Characterization, Analysis and Modeling of an Ultracapacitor

Department of Automotive Engineering, Tsinghua University, 100084, Beijing China
General Motors Global Research and Development, Warren, Michigan 48309, USA
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2010, 4(2), 358-369;
Published: 25 June 2010
PDF [278 KB, uploaded 18 May 2018]


Ultracapacitors are potentially promising power-augmentation devices in hybrid powertrains. A commercial ultracapacitor module was characterized under standard procedures to assess its performance. Tests were carried out on a platform, with which ambient temperature can be regulated and charge/discharge procedures can be implemented. Key parameters of the ultracapacitor module obtained from tests were used to develop a control-oriented ultracapacitor model proposed in the paper. Simulation results of this model in a stable discharge procedure and in dynamic procedures (i.e. driving cycles) showed excellent agreement with results obtained from experiments, indicating that the ultracapacitor model is accurate enough to be used in further electric powertrain control simulation.
Keywords: ultracapacitor; coulometric efficiency; ESR; FreedomCAR; ultracapacitor model ultracapacitor; coulometric efficiency; ESR; FreedomCAR; ultracapacitor model
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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YANG, F.; Lu, L.; Yang, Y.; He, Y. Characterization, Analysis and Modeling of an Ultracapacitor. World Electr. Veh. J. 2010, 4, 358-369.

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