‘Virtual magnet’ claims reveal why EVs need their rare-earth magnets
A large amount of effort has gone towards replacing permanent magnets in the rotor with either electromagnets or just a piece of iron. However, efficiency, starting torque capability, and the maximum speed achievable are some important constraints that have kept these motors out of EVs
· 7/23/2026, 10:27:46 AM· 2 min read
A large amount of effort has gone towards replacing permanent magnets in the rotor with either electromagnets or just a piece of iron. However, efficiency, starting torque capability, and the maximum speed achievable are some important constraints that have kept these motors out of EVs
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