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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.
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Trends in Vehicle Concept and Key Technology Development for Hybrid and Battery Electric Vehicles

German Aerospace Center (DLR), Institute of Vehicle Concepts, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany
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World Electr. Veh. J. 2013, 6(1), 9-20; https://doi.org/10.3390/wevj6010009
Published: 29 March 2013
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Abstract

This paper examines the state-of-the-art and trends in vehicle concept as well as key technology development in the context of electric mobility in a time frame from 2002 until 2012. Thus, an extensive vehicle concept database was designed, covering detailed technical specifications of more than 200 electrified vehicles in 3 different world regions, also considering different stages in vehicle development. By analyzing and comparing over 75 different market- and technology-oriented parameters per vehicle, sophisticated statements for the state-of-the-art and development trends of Hybrid and Battery Electric Vehicles are identified. Results in this paper illustrate trends for Hybrid and Battery Electric Vehicle concept development with a focus on vehicle development stages, vehicle segments and powertrain architectures. On the other hand, state-of-the-art and trends for the development of two electric mobility key technologies are pointed out: Batteries and electric machines. Statements here are made for developments in terms of battery and electric machine technology, installation place, as well as technical parameters like energy capacity and power density. Key results illustrate e.g. a trend towards the use of front and rear axle motors, a more than doubled average electric machine power density with over 1,0kW/kg and an average BEV battery capacity of 19Wh per kg vehicle mass in 2012.
Keywords: Battery; BEV (Battery Electric Vehicle); HEV (Hybrid Electric Vehicle); Power Density; Powertrain; Synchronous Motor Battery; BEV (Battery Electric Vehicle); HEV (Hybrid Electric Vehicle); Power Density; Powertrain; Synchronous Motor
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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Frieske, B.; Kloetzke, M.; Mauser, F. Trends in Vehicle Concept and Key Technology Development for Hybrid and Battery Electric Vehicles. World Electr. Veh. J. 2013, 6, 9-20.

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