Research firm Adamas Intelligence has reported that 93 percent of all passenger EVs sold in 2018 used permanent magnet (PM) traction motors, an increase of 1 percent from 2017.
PM traction motors use neodymium iron boron (NdFeB) permanent magnets in the rotor, which spin the rotor in response to a rotating magnet field produced in the stator. According to Adamas, PM traction motors can provide up to 15 percent more efficiency than induction motors, and are the most power-dense type of traction motor available.
“Looking ahead, we expect demand for PM traction motors, and the rare earth magnets they contain, to continue on a path of explosive growth as EV demand soars and the sales-weighted average motor power (kW) per EV continues to rise,” stated Adamas.
SEE ALSO: Tesla’s top motor engineer talks about designing a permanent magnet machine for Model 3
Source: Adamas Intelligence
Source: Electric Vehicles Magazine
