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

doi:10.1109/TIA.2017.2684739

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 journal › Article › peer-review

28 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 language	English
Article number	7882621
Pages (from-to)	3927-3935
Number of pages	9
Journal	IEEE Transactions on Industry Applications
Volume	53
Issue number	4
DOIs	https://doi.org/10.1109/TIA.2017.2684739
Publication status	Published - Jul 1 2017
Externally published	Yes

Keywords

Cities and towns
Eddy currents
coils
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

Access to Document

10.1109/TIA.2017.2684739

Cite this

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

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.",

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AU - Ogasawara, Satoshi

AU - Hino, Wataru

AU - Takezaki, Kenichi

PY - 2017/7/1

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AB - 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.

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KW - coils

KW - ferrites

KW - permanent magnet motors

KW - permanent magnets

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KW - traction motors

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

Abstract

Keywords

ASJC Scopus subject areas

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