EV Motors Explained

use a two-speed transmission. Multi-gear losses and development costs are reasons why EVs with more than one gear are uncommon, but we predict that will change.All three major EV motor types use three-phase alternating current to set up a rotating magnetic field , the frequency and power of which are controlled by the power electronics that respond to the accelerator. Stators contain numerous parallel slots stuffed with interconnected loops of copper windings.

Induction motors have been around since the 19th century. Here the rotor contains longitudinal laminations or bars of conductive material, most often copper but sometimes aluminum. The stator's RMF induces a current in these laminations, which in turn creates an electromagnetic field that begins to rotate within the stator's RMF.

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