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Behold The Hyundai Uni Wheel. Transportation May Never Be The Same
(cleantechnica.com)
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this post was submitted on 02 Dec 2023
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It directly replaces the CV, so it's the thing saving the space. Sure, if there was still only one motor, and a shaft connecting the two sides, less room would be available. But the space saving, and the reason why splitting the motor in two makes sense in the first place, is the uni wheel.
Also, yes, there are shorter CV joints, but they lose efficiency the shorter they are, because they need to translate through larger angles.
As to why putting the entire motor into the wheel isn't a great idea for cars is because you want to keep as much weight of the vehicle on top of the suspension. If the motor is in the wheel, ride quality will suffer due to the increase of unsprung weight.
Ah, really good points. Thanks for the perspective. My expertise (if I may so generously call it that) ends at the manufacture and assembly processes. Thanks for the perspective.
Honestly, I get most of my knowledge from watching a bunch of youtube videos, so it's not like you're talking to an engineer or anything haha
But I do usually like to pick out the more technical videos, explaining the theory behind all this, so I guess I picked up on some things ^^