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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 mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Hybrid buses: defining the power flow management strategy and energy storage system needs

Vrije Universiteit Brussel, IR-ETEC, Pleinlaan 2, B-1050 Elsene, Belgium
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World Electr. Veh. J. 2009, 3(2), 299-310; https://doi.org/10.3390/wevj3020299
Published: 26 June 2009
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Abstract

The following article will analyze the benefits of retrofitting a diesel-electric bus by hybridizing its drive train with a supercapacitor based energy storage system (ESS). Several power flow management strategies will be proposed and compared; and their respective ESSs will be sized and designed accordingly. The energy savings achieved range between 32 % and 40%, due to braking energy recovery and an improved ICE efficiency, and show the importance of the power flow strategy. Results are obtained by means of a quasi-static ‘backwards/forward looking’ simulation program, developed for this purpose, which includes a dynamic model of the ICE. Performance of the conventional bus and the hybrid bus is also compared.
Keywords: HEV; Public transport; Supercapacitor; Simulation; Energy Storage; Efficiency HEV; Public transport; Supercapacitor; Simulation; Energy Storage; Efficiency
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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Barrero, R.; Coosemans, T.; Van Mierlo, J. Hybrid buses: defining the power flow management strategy and energy storage system needs. World Electr. Veh. J. 2009, 3, 299-310.

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