What is it about?

As electric vehicles become more popular, there's a growing need for motors that can handle high temperatures without losing performance or breaking down. This study focuses on a specific type of motor called an "axial flux permanent magnet" motor, which is compact and powerful but requires effective cooling. By using advanced computer modeling, we explore how heat moves through the motor and test ways to improve cooling. Our goal is to make electric vehicle motors more efficient, reliable, and longer-lasting.

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Why is it important?

This study stands out by offering a dual-model approach to better understand and manage heat in electric vehicle motors. We used two types of models: a detailed 3D computer model (finite element analysis) and a faster, simpler model (lumped parameter thermal network) that can still accurately predict motor temperatures. This combined approach provides both depth and speed in analyzing motor heat, making it feasible to predict and improve motor performance under different conditions. The findings could lead to more durable, efficient motors that meet the demands of high-performance electric vehicles.

Perspectives

Electric vehicle technology is advancing rapidly, but thermal management remains a challenge for motor design. Through this study, we aimed to bridge the gap between highly detailed models and faster, practical solutions for thermal analysis. By validating our models experimentally, we gained insights that could help designers prioritize cooling methods that are both effective and efficient. For me, this project represents a step toward building more sustainable, high-performing EVs by addressing one of the key challenges—effective heat dissipation.

Rohan Kokate
University of Missouri Columbia

Read the Original

This page is a summary of: Thermal Modeling and Analysis of an Axial Flux Permanent Magnet Motor, July 2024, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2024-3817.
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