An EV Drive Unit Built Without Rare Earth Minerals
In this article, I want to share news from Vitesco Technologies about a really cool EV drive unit design the company produced. What really sets it apart from other designs is that it doesn’t depend on rare earth minerals and permanent magnets. For those unfamiliar, let’s take a quick look at what these minerals are so that we can better appreciate not needing them. After that, I’ll go through what Vitesco Technologies is doing and how it has some efficiency advantages, too.
Environmental and social concerns also surround the extraction and processing of rare earth minerals, as these activities can have significant negative impacts on local ecosystems and communities. The mining process often produces toxic byproducts and radioactive waste, which can contaminate water, soil, and air if not managed properly.
Until recently, the majority of electrified vehicles utilized permanent magnet synchronous motors in their synchronous machines, which were considered efficient and generally easier to produce than externally excited machines. These machines generate magnetic fields using coils in the rotor.
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