| URN |
etd-0122126-101253 |
Statistics |
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|
| Author |
Wei-Yu Chang |
| Author's Email Address |
No Public. |
| Department |
Institute Of Mechanical Engineering |
| Year |
2025 |
Semester |
1 |
| Degree |
Master |
Type of Document |
Master's Thesis |
| Language |
zh-TW.Big5 Chinese |
Page Count |
39 |
| Title |
Thermal Management Analysis of Electric Vehicle Drive Systems |
| Keyword |
cooling system
thermal management
electric vehicles
electric vehicles
thermal management
cooling system
|
| Abstract |
This study investigates the thermal management of the electric drive system in a Tesla Model 3, focusing on thermal challenges of high-power electric motors under prolonged operation, including stator winding overheating, permanent magnet demagnetization risk, and gearbox temperature rise. A multi-physics coupled thermal model integrating the motor, inverter, and gearbox was developed using computational fluid dynamics (CFD) combined with automated mesh generation, preserving detailed winding geometries and cooling channel configurations.Two liquid-cooling architectures were evaluated: a winding-priority cooling design and an inverter-priority cooling design. Simulation results show that the winding-priority design effectively limits the maximum stator winding temperature below 290 ¢XC at the expense of higher pressure drop, whereas the inverter-priority design reduces pressure loss but provides insufficient winding cooling. The results further reveal strong thermal coupling among drivetrain components, emphasizing the importance of integrated thermal design. This study demonstrates the effectiveness of CFDbased simulation for optimizing liquid-cooling architectures in highperformance electric vehicle drive systems. |
| Advisor Committee |
Kun-Ling Wu - advisor
Cheng-Kuang Huang - co-chair
Chun-Han Huang - co-chair
|
| Files |
indicate access worldwide |
| Date of Defense |
2026-01-16 |
Date of Submission |
2026-01-22 |
