4 ms·
I've learned a great deal about motors over the years. I don't doubt what they have here is real, as, these principles have been known for a long time. The rea
by adammunich 7y ago
I've learned a great deal about motors over the years. I don't doubt what they have here is real, as, these principles have been known for a long time.
The reason we don't use permanent-magnet synchronous motors like this in cars though, is because rare earth magnets are much more expensive, and more fragile, than using synchronous reluctance motors which are mostly iron.
The auto companies aren't dumb --if they thought PMS motors were cost effective, they would have been using them by now.
- davidgould 7y agoThe car makers with any volume are using asynchronous AC motors (Leaf, Tesla) or PM DC synchronous motors (GM). Tesla got a lot of publicity when there was speculation about the Model 3 using a reluctance motor, which suggests it would have been a new thing. But it turns out to be a hybrid of PM and reluctance. Possibly Chinese vendors are doing something different for cars, but the e-bike and scooter motors are all PM. I don't believe the company in the article have anything at the level they are claiming.