So we could have a slightly bigger inside to the usual EV SUV. woo
Bigger inside than modern SUVs? What does people transport? How many people ride regularly? What size are people?
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
#12So we could have a slightly bigger inside to the usual EV SUV. woo
Bigger inside than modern SUVs? What does people transport? How many people ride regularly? What size are people?
Two adults, two kids in car seats, and a dog. With that, even a mid-size SUV has no space for cargo. If you drive a sedan, you have to leave the dog at home.
Re: Hyundai Uni Wheel electric drive system could revolutionize EV design
#13Maybe I can't tell from the video, or maybe they're not working on this yet... But what about the steering wheels? Surely the driveshaft will have to have a joint on it on the front wheels in order for the front wheels to turn? Also this doesn't look like it would deal with camber changes which are needed to keep your tires flat on the road when cornering...
Re: Hyundai Uni Wheel electric drive system could revolutionize EV design
#14Earlier quoted context omitted.
Bigger inside than modern SUVs? What does people transport? How many people ride regularly? What size are people?
Two adults, two kids in car seats, and a dog. With that, even a mid-size SUV has no space for cargo. If you drive a sedan, you have to leave the dog at home.
Maybe if they don’t put a foot-wide console in the middle there would be more space for people and cargo.
Re: Hyundai Uni Wheel electric drive system could revolutionize EV design
#15So we could have a slightly bigger inside to the usual EV SUV. woo
Bigger inside than modern SUVs? What does people transport? How many people ride regularly? What size are people?
The average number of occupants in a road vehicle is under two, yet they drive a massive tank. The typical pickup truck on the road also has an empty bed.
Meanwhile, I can fit four people and some light cargo comfortably in my hatchback, or put all the seats down and carry more cargo than the typical SUV.
Re: Hyundai Uni Wheel electric drive system could revolutionize EV design
#16Earlier quoted context omitted.
Bigger inside than modern SUVs? What does people transport? How many people ride regularly? What size are people?
Two adults, two kids in car seats, and a dog. With that, even a mid-size SUV has no space for cargo. If you drive a sedan, you have to leave the dog at home.
That's why station wagons and vans exist. SUVs do not provide more space, they just occupy more (on top of being dangerous to others)
Re: Hyundai Uni Wheel electric drive system could revolutionize EV design
#17Maybe I can't tell from the video, or maybe they're not working on this yet... But what about the steering wheels? Surely the driveshaft will have to have a joint on it on the front wheels in order for the front wheels to turn? Also this doesn't look like it would deal with camber changes which are needed to keep your tires flat on the road when cornering...
I also notice that unsprung weight was not mentioned. The "Uniwheel" clearly has advantages over CV joints, but it also looks like a significant increase in unsprung weight.
They also gloss over "splitting the motor". It looks like 4 individual wheel motors, which would indeed be optimal for the torque vectoring that they mention.
Still, looks like a very cool development. I hope it works out to be a real advance
Re: Hyundai Uni Wheel electric drive system could revolutionize EV design
#18FWIW, there was recently a now-defunct car company (Lordstown motors) that utilized an in-wheel motor from the company Elaphe (https://in-wheel.com/en/technology/#in-wheel-motor-technolog...)
I think the tradeoff is between more flexibility & fewer parts (no cv joints) but possibly more rolling resistance.
But watch the video, this uni-wheel thing is different. It isnt an in-wheel motor, more of a cv-joint alternative?
Re: Hyundai Uni Wheel electric drive system could revolutionize EV design
#19Maybe I can't tell from the video, or maybe they're not working on this yet... But what about the steering wheels? Surely the driveshaft will have to have a joint on it on the front wheels in order for the front wheels to turn? Also this doesn't look like it would deal with camber changes which are needed to keep your tires flat on the road when cornering...
Right, it seems like this will only work on non-steering solid axles, not with independent suspension.
Re: Hyundai Uni Wheel electric drive system could revolutionize EV design
#20Maybe I can't tell from the video, or maybe they're not working on this yet... But what about the steering wheels? Surely the driveshaft will have to have a joint on it on the front wheels in order for the front wheels to turn? Also this doesn't look like it would deal with camber changes which are needed to keep your tires flat on the road when cornering...
The front wheels still have a CV joint to facilitate steering. See 4:17 in the video.