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Hyundai Uni Wheel electric drive system could revolutionize EV design

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Re: Hyundai Uni Wheel electric drive system could revolutionize EV design

#191
post #21

Earlier quoted context omitted.

Large station wagons no longer exist in the US market. The biggest one remaining is probably the Volvo V90, which is a nice car but can barely fit 5 people, and if you put a dog in the back then there's no room for cargo. It's also too expensive for most families; several large SUVs are actually cheaper. Minivans are a good option for some families. But they suck for towing trailers, and the ground clearance is terri…

This sounds like a very US related problem that is unfortunately expanding to Europe due to car manufacturers marketing strategy. I still find it crazy that no station wagon exists other than Volvo.. like Audi does not export their A4/A6/A8 estate version? Skoda, Mitsubishi, Toyota neither? I can understand if you live in an area where roads are not well maintained or mostly dirt, SUV is really alluring. But for city…

There are a few other station wagons still available on the US market. Audi in still sells the A6, but it's very expensive and has limited interior space. For most middle-class families a large SUV like a Chevrolet Tahoe is a much more affordable and practical choice. Most Americans don't spend much time driving in dense cities, so that's not a real problem worth worrying about.

Re: Hyundai Uni Wheel electric drive system could revolutionize EV design

#192

Earlier quoted context omitted.

My experience with a planetary gear in a bicycle is that it produces additional noise. I wonder if this would be noticeable for an automobile.

I'm sure it would. Any mechanical gears will produce noise at higher velocities so curious what this sounds like myself. Electric hub motors produce a wine from the EMF that is audible but that's a different sound (the hum of a tesla going by) or a Surron that uses a radial flux motor with chain link gears (this is my favorite hobby design, chain gears are super useful).

> Electric hub motors produce a wine from the EMF

the sound is not coming from EMF, but rather from speakers due to safety regulations for pedestrians

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