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Summary & Details

Mechanical-winding-changeover Motor Drive System

機械式巻線切替モータ駆動システム

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Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20214962

Paper/Info type: Journal of Society of Automotive Engineers of Japan

Vol.75 No.12

Pages: 46-52(Total 7 p)

Date of publication: Dec 2021

Publisher: JSAE

Language: Japanese

Detailed Information

Category(J)	E V の航続距離拡大技術 Translation
Category(E)	Range Extension Technologies for EV
Author(J)	1) 高橋暁史, 2) 杉本愼治, 3) 西濱和雄, 4) 隅田悟士, 5) 谷口峻
Author(E)	1) Akeshi Takahashi, 2) Shinji Sugimoto, 3) Kazuo Nishihama, 4) Satoshi Sumita, 5) Shun Taniguchi
Affiliation(J)	1) 日立製作所, 2) 日立製作所, 3) 日立製作所, 4) 日立製作所, 5) 日立製作所
Abstract(J)	機械式巻線切替システムの小形化手法を構築するとともに，駆動中においても接点アークが生じない切替動作原理を確立した。低速域でモータ巻線を直列接続に切り替えて相電流を低減することでインバータ損失を抑制できるため，電費がJC08モードにおいて最大で10%，WLTCモードにおいて6%改善する見込みを得た。 Translation
Abstract(E)	This report presents a mechanical winding-changeover system to improve energy consumption of traction motors for automobiles. We have adopted multi contacts to downsize the winding-changeover device and also established the operation principle which does not occur any contact arc, where the switching timing is controlled so that the motor internal voltage is constantly below the inverter DC voltage. Energy loss will be reduced by 6% at JC08 mode and by 2% at WLTC mode because of the improvement of system efficiency due to winding changeover.

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