Development of Technologies for Miniaturization, High Efficiency, and High Torque Density in an e-Axle
e-Axleにおける小型化・高効率化および高トルク密度化技術の開発
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20266204
- Paper/Info type
- Proceedings (Autumn)
No.135-26
- Pages
- 1-3(Total 3 p)
- Date of publication
- Oct 2026
- Publisher
- JSAE
- Language
- Japanese
- Event
- 2026 JSAE Annual Congress (Autumn)
Detailed Information
| Author(J) | 1) 髙橋 洋平, 2) 植杉 桂, 3) 大石 貴彦, 4) 塩満 栄一 |
|---|---|
| Author(E) | 1) Yohei Takahashi, 2) Katsura Uesugi, 3) Takahiko Oishi, 4) Eiichi Shiomitsu |
| Affiliation(J) | 1) 明電舎, 2) 明電舎, 3) 明電舎, 4) 明電舎 |
| Affiliation(E) | 1) Meidensha, 2) Meidensha, 3) Meidensha, 4) Meidensha |
| Abstract(J) | 軽・Aセグ車両向けに低背・軽量かつ高トルク密度である小型e-Axleを開発した．ギヤは平行2軸の構成で，モータとの空き空間にインバータを配置することで三辺寸法を最小化した．モータ巻線占積率の向上と磁石の二重V字構成により高トルク密度化し，スイッチング速度の向上，オイルの損失低減により高効率化を達成した． Translation |
| Abstract(E) | A compact e-Axle with a low-profile, lightweight structure and high torque density was developed for mini and A-segment vehicles. The gear train adopts a two-shaft parallel configuration, and the inverter is arranged in the vacant space alongside the motor to minimize the unit dimensions in all three directions. High torque density was achieved by increasing the motor winding fill factor and employing a dual-V magnet configuration, while high efficiency was attained by increasing the switching speed and reducing oil losses. |
