Presentation 2021-12-08
Noise mechanism during acceleration/deceleration in electric vehicles
Kensuke Kobayashi, Yoshihiro Kida, shinji ohoka, Katsumi Nakamura,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) By simultaneously measuring the vehicle condition and the antenna-induced voltage, it was found that an impulse-shaped antenna-induced voltage is generated during acceleration / deceleration, which exacerbates noise in the AM band. Furthermore, by simultaneously measuring the antenna-induced voltage and the shaft voltage of the drive shaft, it was confirmed that the impulse-shaped antenna-induced voltage was synchronized with the shaft voltage. In addition, by simultaneously measuring the shaft voltage of the MG shaft, transmission, and drive shaft, it was clarified that the impulse-shaped shaft voltage is mechanically generated by the contact and opening of the gears, which are the components of the transmission.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Shaft voltage / Electric vehicle / Radiation noise / AM radio / Antenna / Acceleration/Deceleration
Paper # EMCJ2021-58
Date of Issue 2021-12-01 (EMCJ)

Conference Information
Committee EMCJ / IEE-EMC / IEE-SPC
Conference Date 2021/12/8(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Atsuhiro Nishikata(Tokyo Inst. of Tech.) / 石上 忍(東北学院大学) / 伊東 淳一(長岡技術科学大学)
Vice Chair Kimihiro Tajima(NTT-AT) / / 小高 章弘(富士電機)
Secretary Kimihiro Tajima(NAIST) / (Hitachi) / 小高 章弘(鉄道総合技術研究所)
Assistant Kiyoto Matsushima(Hitachi) / Hiroyoshi Shida(EMC Tech.) / Tohlu Matsushima(Kyushu Inst. of Tech.) / 井渕 貴章(大阪大学) / 日下 佳祐(長岡技術科学大学) / 高見 弘(芝浦工業大学)

Paper Information
Registration To Technical Committee on Electromagnetic Compatibility / Technical Meeting on Electromagnetic Compatibility / Technical Meeting on Semiconductor Power Converter
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Noise mechanism during acceleration/deceleration in electric vehicles
Sub Title (in English)
Keyword(1) Shaft voltage
Keyword(2) Electric vehicle
Keyword(3) Radiation noise
Keyword(4) AM radio
Keyword(5) Antenna
Keyword(6) Acceleration/Deceleration
1st Author's Name Kensuke Kobayashi
1st Author's Affiliation SOKEN,INC(SOKEN)
2nd Author's Name Yoshihiro Kida
2nd Author's Affiliation SOKEN,INC(SOKEN)
3rd Author's Name shinji ohoka
3rd Author's Affiliation SOKEN,INC(SOKEN)
4th Author's Name Katsumi Nakamura
4th Author's Affiliation DENSO CORPORATION(DENSO)
Date 2021-12-08
Paper # EMCJ2021-58
Volume (vol) vol.121
Number (no) EMCJ-288
Page pp.pp.22-27(EMCJ),
#Pages 6
Date of Issue 2021-12-01 (EMCJ)