85 kHz band 44 kW wireless rapid charging system for field test and public road operation of electric bus

Shuichi Obayashi; Tetsu Shijo; Masatoshi Suzuki; Fumi Moritsuka; Kenichirou Ogawa; Koji Ogura; Yasuhiro Kanekiyo; Masaaki Ishida; Toru Takanaka; Nobumitsu Tada; Fumiaki Takeuchi; Shunsuke Take; Yoshihiko Yamauchi; Wei hsiang Yang; Yushi Kamiya

doi:10.3390/wevj10020026

85 kHz band 44 kW wireless rapid charging system for field test and public road operation of electric bus

Shuichi Obayashi, Tetsu Shijo, Masatoshi Suzuki, Fumi Moritsuka, Kenichirou Ogawa, Koji Ogura, Yasuhiro Kanekiyo, Masaaki Ishida, Toru Takanaka, Nobumitsu Tada, Fumiaki Takeuchi, Shunsuke Take, Yoshihiko Yamauchi, Wei hsiang Yang, Yushi Kamiya

Graduate School of Environment and Energy Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Wireless charging technology for heavy-duty vehicles has been investigated for eco-friendly transportation. We present a new wireless power transfer system for 44 kW rapid charging of electric buses. The transmission distance between the charging pads is from 10 to 13 cm. The large air gap can be fulfilled by the ordinary kneeling function, equipped on most low-floor buses. Dual-block parallel transmission with opposite-phase-current-feeding suppresses magnetic radiation. The system operates in the common 85 kHz band with the light-duty vehicle system. The result of the field test and the public road operation of two electric buses confirm the CO₂ reduction effect described.

Original language	English
Article number	26
Journal	World Electric Vehicle Journal
Volume	10
Issue number	2
DOIs	https://doi.org/10.3390/wevj10020026
Publication status	Published - 2019 Jun 1

Keywords

CO reduction
Electric bus
Magnetic emission
Rapid charging
Wireless battery charging

ASJC Scopus subject areas

Automotive Engineering

Access to Document

10.3390/wevj10020026

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Obayashi, S., Shijo, T., Suzuki, M., Moritsuka, F., Ogawa, K., Ogura, K., Kanekiyo, Y., Ishida, M., Takanaka, T., Tada, N., Takeuchi, F., Take, S., Yamauchi, Y., Yang, W. H., & Kamiya, Y. (2019). 85 kHz band 44 kW wireless rapid charging system for field test and public road operation of electric bus. World Electric Vehicle Journal, 10(2), [26]. https://doi.org/10.3390/wevj10020026

85 kHz band 44 kW wireless rapid charging system for field test and public road operation of electric bus. / Obayashi, Shuichi; Shijo, Tetsu; Suzuki, Masatoshi; Moritsuka, Fumi; Ogawa, Kenichirou; Ogura, Koji; Kanekiyo, Yasuhiro; Ishida, Masaaki; Takanaka, Toru; Tada, Nobumitsu; Takeuchi, Fumiaki; Take, Shunsuke; Yamauchi, Yoshihiko; Yang, Wei hsiang ; Kamiya, Yushi.

In: World Electric Vehicle Journal, Vol. 10, No. 2, 26, 01.06.2019.

Research output: Contribution to journal › Article › peer-review

Obayashi, S, Shijo, T, Suzuki, M, Moritsuka, F, Ogawa, K, Ogura, K, Kanekiyo, Y, Ishida, M, Takanaka, T, Tada, N, Takeuchi, F, Take, S, Yamauchi, Y, Yang, WH & Kamiya, Y 2019, '85 kHz band 44 kW wireless rapid charging system for field test and public road operation of electric bus', World Electric Vehicle Journal, vol. 10, no. 2, 26. https://doi.org/10.3390/wevj10020026

Obayashi, Shuichi ; Shijo, Tetsu ; Suzuki, Masatoshi ; Moritsuka, Fumi ; Ogawa, Kenichirou ; Ogura, Koji ; Kanekiyo, Yasuhiro ; Ishida, Masaaki ; Takanaka, Toru ; Tada, Nobumitsu ; Takeuchi, Fumiaki ; Take, Shunsuke ; Yamauchi, Yoshihiko ; Yang, Wei hsiang ; Kamiya, Yushi. / 85 kHz band 44 kW wireless rapid charging system for field test and public road operation of electric bus. In: World Electric Vehicle Journal. 2019 ; Vol. 10, No. 2.

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abstract = "Wireless charging technology for heavy-duty vehicles has been investigated for eco-friendly transportation. We present a new wireless power transfer system for 44 kW rapid charging of electric buses. The transmission distance between the charging pads is from 10 to 13 cm. The large air gap can be fulfilled by the ordinary kneeling function, equipped on most low-floor buses. Dual-block parallel transmission with opposite-phase-current-feeding suppresses magnetic radiation. The system operates in the common 85 kHz band with the light-duty vehicle system. The result of the field test and the public road operation of two electric buses confirm the CO2 reduction effect described.",

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AU - Kanekiyo, Yasuhiro

AU - Ishida, Masaaki

AU - Takanaka, Toru

AU - Tada, Nobumitsu

AU - Takeuchi, Fumiaki

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AB - Wireless charging technology for heavy-duty vehicles has been investigated for eco-friendly transportation. We present a new wireless power transfer system for 44 kW rapid charging of electric buses. The transmission distance between the charging pads is from 10 to 13 cm. The large air gap can be fulfilled by the ordinary kneeling function, equipped on most low-floor buses. Dual-block parallel transmission with opposite-phase-current-feeding suppresses magnetic radiation. The system operates in the common 85 kHz band with the light-duty vehicle system. The result of the field test and the public road operation of two electric buses confirm the CO2 reduction effect described.

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