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> "The video explained that most electric car motors require magnets made from rare-earth elements" For years, Tesla exclusively used induction motors with no
by Reason077 4y ago
> "The video explained that most electric car motors require magnets made from rare-earth elements"
For years, Tesla exclusively used induction motors with no permanent magnets. It's only relatively recently (when the Model 3 was released) that they started using permanent magnets in order to gain a few % better efficiency.
Even now, dual-motor cars often pair an induction motor with a permanent magnet motor. This configuration has various advantages: the induction motor can spin freely with no resistance when no power is required, so using one of each provides the best combination of efficiency and power.
- DakotaR 4y agoI really like the EESM motors cars like the Renault Zoe use. It's basically a permanent magnet motor, but the rotor uses electromagnets that are energized through wireless power transfer.