Energy Efficiency of SR and IPM Generators for Hybrid Electric Vehicle

Katsuhiko Urase, Noboru Yabu, Kyohei Kiyota, Hiroya Sugimoto, Akira Chiba, Masatsugu Takemoto, Satoshi Ogasawara, Nobukazu Hoshi

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


A new switched reluctance (SR) generator was designed for possible application in hybrid electric vehicles. The proposed generator was designed to be mostly competitive with the target interior permanent-magnet (IPM) generator currently used in mass-produced hybrid vehicles. The energy efficiencies of the SR and IPM generators were compared in typical driving cycles, such as US06, HWFET, and UDDS modes. We found that the energy efficiency of the SR generator was close to the IPM generator in high-speed driving cycles because the SR generator has no iron loss during the generator idling period due to the fact that it has no PM.

Original languageEnglish
Article number7001247
Pages (from-to)2874-2883
Number of pages10
JournalIEEE Transactions on Industry Applications
Issue number4
Publication statusPublished - Jul 1 2015
Externally publishedYes


  • driving schedule
  • efficiency
  • hybrid electric vehicles
  • switched reluctance generator

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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