Design of a 200 kW electric powertrain for a high performance electric vehicle | Diseño de un tren de potencia eléctrico de 200 kW para un vehículo eléctrico de alto desempeño

W. Martinez, C. A. Cortes, L. Enrique García-Munoz, M. Yamamoto

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)
14 Downloads (Pure)

Abstract

With the purpose of designing the electric powertrain of a high performance electric vehicle capable of running a quarter mile in 10 seconds, firstly it is necessary to calculate the required energy, torque, and power in order to size and select the suitable storage components and electric motors. Secondly, an assessment of the powertrain arrangement is needed to choose the best internal configuration of the vehicle and guarantee the highest efficiency possible. Finally, a design of the power conversion stages, specifically the DC-DC converter that interfaces the storage unit with the electric motors, is required as well. This paper shows the energy calculation procedure based on a longitudinal dynamic model of the vehicle and the selection method of the storage components and motors needed for this application, as well as the design of two 100 kW interleaved boost converters with coupled inductors. In addition, a novel operation of the interleaved boost converter is proposed in order to increase the efficiency of the converter. As a result, the designed converter achieved a power density of 24,2 kW/kg with an efficiency of 98 %, which was validated by experimental tests of a low power prototype.
Original languageEnglish
Pages (from-to)66-73
Number of pages8
JournalIngenieria e Investigacion
Volume36
Issue number3
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • coupled inductor
  • efficiency
  • electric vehicle
  • interleaved dc-dc converters
  • power density
  • ultracapacitors

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