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High-Torque Density Design of Small Motors for Automotive Applications with Double Axial-Air-Gap Structures

Author

Listed:
  • Akihisa Hattori

    (Graduate School of Science and Technology, Shizuoka University, Hamamatsu 432-8561, Japan
    Advanced Electric Drive System R&D Department, Environment Neutral System Development Division, Denso Corporation, Kariya 448-8661, Japan)

  • Toshihiko Noguchi

    (Graduate School of Science and Technology, Shizuoka University, Hamamatsu 432-8561, Japan)

  • Hiromu Kamiyama

    (Graduate School of Science and Technology, Shizuoka University, Hamamatsu 432-8561, Japan
    Toshiba Mitsubishi-Electric Industrial Systems Corporation (TMEIC), Tokyo 104-0031, Japan)

Abstract

This paper describes the results of studies on higher torque density of automotive auxiliary motors based on electromagnetic field analysis. Dual stator axial-gap PM motors achieve higher torque density than radial-gap motors in a flat motor shape. Therefore, an axial-gap motor was designed based on a design policy different from that in the past to reduce its volume by half of the radial-gap motors for automotive applications and was experimentally evaluated using a prototype motor. In order to improve the torque density, a double axial-gap motor structure was adopted to achieve wide torque generation areas and was optimally designed, reducing the volume by 44% compared with the existing model. It was experimentally evaluated using a prototype motor.

Suggested Citation

  • Akihisa Hattori & Toshihiko Noguchi & Hiromu Kamiyama, 2022. "High-Torque Density Design of Small Motors for Automotive Applications with Double Axial-Air-Gap Structures," Energies, MDPI, vol. 15(19), pages 1-20, October.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:19:p:7341-:d:934685
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    References listed on IDEAS

    as
    1. Changchuang Huang & Baoquan Kou & Xiaokun Zhao & Xu Niu & Lu Zhang, 2022. "Multi-Objective Optimization Design of a Stator Coreless Multidisc Axial Flux Permanent Magnet Motor," Energies, MDPI, vol. 15(13), pages 1-13, June.
    2. Dong-Youn Shin & Min-Jae Jung & Kang-Been Lee & Ki-Doek Lee & Won-Ho Kim, 2022. "A Study on the Improvement of Torque Density of an Axial Slot-Less Flux Permanent Magnet Synchronous Motor for Collaborative Robot," Energies, MDPI, vol. 15(9), pages 1-14, May.
    3. Andrea Credo & Marco Tursini & Marco Villani & Claudia Di Lodovico & Michele Orlando & Federico Frattari, 2021. "Axial Flux PM In-Wheel Motor for Electric Vehicles: 3D Multiphysics Analysis," Energies, MDPI, vol. 14(8), pages 1-18, April.
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    Cited by:

    1. Kritika Deepak & Mohamed Amine Frikha & Yassine Benômar & Mohamed El Baghdadi & Omar Hegazy, 2023. "In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends," Energies, MDPI, vol. 16(7), pages 1-31, March.

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