A novel flux-modulated type dual-axis motor for hybrid electric vehicles

Michinari Fukuoka, Kenji Nakamura, Hidenori Kato, Osamu Ichinokura

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


This paper presents a novel flux-modulated type dual-axis motor that has two mechanical inputs/outputs, since it consists of a stator, a permanent magnet rotor, and a modulating rotor. Furthermore, since the dual-axis motor has a function the same as a planetary type magnetic gear, it can transmit torque with arbitrary gear ratio and divide mechanical input/output into two rotors without any mechanical contact. In this paper, first, conventional and proposed flux-modulated type dual-axis motors are optimized and compared using finite-element analysis. Next, the proposed dual-axis motor is prototyped and demonstrates the validity and availability by experiment.

Original languageEnglish
Article number6971793
JournalIEEE Transactions on Magnetics
Issue number11
Publication statusPublished - 2014 Nov 1


  • Flux-modulated type dual-axis motor
  • hybrid electric vehicle
  • magnetic gear
  • optimum design


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