Permanent magnet motor

Tesla motor designer explains Model 3’s transition to permanent magnet motor
Fred Lambert – Feb. 27th 2018

”Tesla made a significant change to its electric motor strategy with the introduction of the Model 3, switching from an AC induction motor to a permanent magnet motor.”

https://electrek.co/2018/02/27/tesla-model-3-motor-designer-permanent-magnet-motor/

Most EV motors use permanent magnets made from materials such as neodymium-iron-boron and samarium-cobalt.

Magnets made of rare-earth metals (Neodymium, Nd) are particularly powerful alloys are one-third to two times more powerful than traditional ferrite magnets — generating fields up to 1.4 Teslas in some cases.

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