Power-flow control method for Wireless In-Wheel Motor with supercapacitor

Takuma Takeuchi, Takehiro Imura, Daisuke Gunji, Hiroshi Fujimoto, Yoichi Hori

Research output: Contribution to journalArticle


The In-Wheel Motor (IWM), which is a driving system for Electric Vehicles (EVs) is effective for improving driving range or reducing vehicle weight. However, IWM has not been put to practical use because of a possibility of power line disconnection. Therefore, we proposed a Wireless In-Wheel Motor (W-IWM), in which Wireless Power Transfer (WPT) is used to remove these lines and improve the practicability of IWM. In this paper, the advanced system of W-IWM, which has a Supercapacitor (SC) and circuit for dynamic charging on its wheel side, is proposed. Additionally, a power-flow control method is proposed to control the power-flow of multiple power sources in the system. The power-flow control method is verified by simulation and experiment.

Original languageEnglish
Pages (from-to)219-226
Number of pages8
JournalIEEJ Transactions on Industry Applications
Issue number3
Publication statusPublished - 1 Jan 2018



  • Power-flow control
  • Supercapacitor
  • Wireless In-Wheel Motor
  • Wireless Power Transfer

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