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Mahle’s cheap, highly efficient new EV motor uses no magnets

Mahle's highly efficient new electric motor ditches rare earth metals altogether, instead using contactless induction to feed power to coils in the rotor

Magnets, typically using rare earth metals like neodymium, are found at the heart of most electric vehicle motors. It’s nice to have a permanent source of powerful rare earth magnetism in your rotor, because using powered coils instead means you have to somehow transfer electricity from the battery through to the coils in a spinning rotor. That means you’ll need a sliding point of contact, and sliding points of contact develop wear and tear over time.

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Category: Automotive, Transport

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