Size and Weight Reduction of an In-Wheel Axial-Gap Motor Using Ferrite Permanent Magnets for Electric Commuter Cars

Tomohira Takahashi, Masatsugu Takemoto, Satoshi Ogasawara, Wataru Hino, Kenichi Takezaki

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

In-wheel type permanent-magnet synchronous motors for electric commuter cars are required to be compact and light to use limited wheel space effectively and reduce unspringing weight. Therefore, our previous papers presented a low-cost in-wheel axial-gap motor that uses ferrite permanent magnets. This motor adopted an open slot structure to reduce production costs. However, to achieve further size and weight reduction, we examine here in detail the adoption of a semiclosed slot structure instead of an open slot structure. Experimental results show that the semiclosed slot structure is effective in realizing size and weight reduction.

Original languageEnglish
Article number7882621
Pages (from-to)3927-3935
Number of pages9
JournalIEEE Transactions on Industry Applications
Volume53
Issue number4
DOIs
Publication statusPublished - Jul 1 2017
Externally publishedYes

Keywords

  • Cities and towns
  • coils
  • Eddy currents
  • ferrites
  • permanent magnet motors
  • permanent magnets
  • synchronous motors
  • traction motors

ASJC Scopus subject areas

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

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