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JACIII Vol.29 No.3 pp. 631-640
doi: 10.20965/jaciii.2025.p0631
(2025)

Research Paper:

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Giant Magnetostrictive Actuators for Ultracompact Electric Vehicles: Analysis of Output Characteristics

Taro Kato*1,† ORCID Icon, Kentaro Sawada*2, Wenbao Wu*3 ORCID Icon, Ikkei Kobayashi*3, Jumpei Kuroda*3 ORCID Icon, Daigo Uchino*4 ORCID Icon, Kazuki Ogawa*5 ORCID Icon, Keigo Ikeda*6 ORCID Icon, Ayato Endo*7 ORCID Icon, Xiaojun Liu*8 ORCID Icon, Hideaki Kato*2 ORCID Icon, Takayoshi Narita*2 ORCID Icon, and Mitsuaki Furui*1

*1Department of Mechanical Engineering, Tokyo University of Technology
1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan

†Corresponding author

*2Course of Mechanical Engineering, Tokai University
4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan

*3Course of Science and Technology, Tokai University
4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan

*4Department of Mechanical Engineering, National Institute of Technology, Numazu College
3600 Ooka, Numazu, Shizuoka 410-0022, Japan

*5Department of Electronic Robotics, Aichi University of Technology
50-2 Manori, Nishi-hasama, Gamagori, Aichi 443-0047, Japan

*6Department of Mechanical Engineering, Hokkaido University of Science
7-Jo 15-4-1 Maeda, Teine, Sapporo, Hokkaido 006-8585, Japan

*7Department of Electrical Engineering, Fukuoka Institute of Technology
3-30-1 Wajiro-higashi, Higashi-ku, Fukuoka, Fukuoka 811-0295, Japan

*8OMRON Corporation
801 Higashifudomachi, Shiokojidori, Horikawahigashiiru, Shimogyo-ku, Kyoto, Kyoto 600-8530, Japan

Received:
December 9, 2024
Accepted:
February 28, 2025
Published:
May 20, 2025
Creative Commons License
Keywords:
ultracompact EV, ANC, giant magnetostrictive actuator, FEM, magnetostriction force
Abstract

Ultracompact electric vehicles have compact, lightweight bodies with low outer-plate rigidity. This results in the transmission of road noise from the tires and wind noise (caused by the projection shape of the vehicle) into the cabin. Interior acoustic control systems require devices that can produce sound waves. Next-generation mobility uses giant magnetostrictive actuators (GMAs) for sound production. This is a foundational study for designing GMAs that can be used in such interior acoustic control systems. Magnetostriction forces are generated when a magnetic field deforms giant magnetostrictive materials. The output characteristics were analyzed by electromagnetic-field analysis. Further, the GMA magnetostriction force was analyzed using the finite element method (FEM)—across varying frequency ranges of piezoelectrically controlled amplifiers. The FEM results indicated that the GMA output performance was sufficient to generate sound waves for active noise control in the low-frequency range, 100–500 Hz (road noise). Further optimization is required to expand the frequency range—to accommodate music playback, etc.—including modification of the actuator size, weight, shape, and components and using materials with higher magnetic permeability.

Proposed interior acoustic control system for the ultracompact EV using a GMA

Proposed interior acoustic control system for the ultracompact EV using a GMA

Cite this article as:
T. Kato, K. Sawada, W. Wu, I. Kobayashi, J. Kuroda, D. Uchino, K. Ogawa, K. Ikeda, A. Endo, X. Liu, H. Kato, T. Narita, and M. Furui, “Giant Magnetostrictive Actuators for Ultracompact Electric Vehicles: Analysis of Output Characteristics,” J. Adv. Comput. Intell. Intell. Inform., Vol.29 No.3, pp. 631-640, 2025.
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Last updated on May. 19, 2025