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Lucid Air Promises PMSM Motors That Behave Like Induction Units
The vehicle is also now open to reservations in the Middle East.
There are many startups and even legacy automakers preparing their EVs. Anyway, apart from Rivian, Lucid Motors is probably the one that deserves more attention. If not for the fact that Peter Rawlinson is the man behind the Tesla Model S’s engineering, at least because of what it promises. Among many things, Rawlinson recently mentioned that its permanent magnet synchronous motors – or PMSM – spin like induction motors.
If you are asking why that is important, you must not remember our article about flat towing an electric car. Some manufacturers say you should never do it, mostly the ones that use PMSM in their vehicles and precisely on the axle where they are applied.
Rawlinson explained to IEEE Spectrum that spinning a PMSM creates cogging torque. It causes efficiency losses because – as their names state – permanent magnets are always magnetized. In other words, there is always a magnetic field in them.
Lucid Motors’ CEO did not say what the company did differently to have its PMSM behave like induction motors when it comes to spinning and cogging torque. When he does, that promises to be a real breakthrough.
Gallery: Lucid Air PMSM Motors Will Like Induction Units, CEO Says