Reducing Energy Losses in xEV Motors and Batteries through CO2 Refrigerant Utilization for Lubrication and Thermal Management
CO2 冷媒をxEV 用モータとバッテリーの潤滑と熱管理に活用したエネルギー損失低減の研究
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- Publication code
- 20254047
- Paper/Info type
- JSAE Transaction
Vol.56 No.1
- Pages
- 134-139(Total 6 p)
- Date of publication
- Jan 2025
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Paper |
| Author(J) | 1) 堀端 頌子, 2) 宮内 勇馬 |
| Author(E) | 1) Shoko Horibata, 2) Yuma Miyauchi |
| Affiliation(J) | 1) マツダ株式会社, 2) マツダ株式会社 |
| Abstract(J) | 一般にxEV用のモータ，バッテリー，空調は油，水，冷媒の独立した経路によって熱管理されている．これらを絶縁性と低粘度を有するCO2冷媒により一元化し，直接冷却と摺動部の潤滑を行う机上検討を実施した．この結果，熱管理性能向上，ロータの撹拌抵抗低減が可能な事を確認したので報告する． Translation |
| Abstract(E) | Motors, batteries, and air conditioning systems for xEVs are typically thermally managed via separate oil, water, and refrigerant pathways. A centralized system utilizing CO2 refrigerant with electric insulation and low viscosity is being developed, enabling both direct cooling and lubrication. This approach demonstrated improvements in thermal management and a reduction in rotor agitation resistance. In addition to these advancements, the study revealed the need to address bearing wear during boundary lubrication and to enhance the cooling of the sliding parts in the mechanical seals of the motor shaft. |
