29
First mass electric car with all-wheel hub motors has no brakes or CV joints
(www.notebookcheck.net)
this post was submitted on 13 Nov 2025
29 points (100.0% liked)
Automotive Industry
619 readers
23 users here now
News and discussion about the automotive industry.
Maybe also interesting:
When submitting stories, try to submit the original source provided it is in english and not paywalled.
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
The key thing for a smooth ride is minimizing unsprung mass (I.e. the mass not supported by the suspension). This mass needs to be able to bounce up and down quickly as you go over bumps. More mass means stronger suspension.
See videos like this… https://www.youtube.com/watch?v=pu0-CUAs0jg
Wheel hub motors have been around for a while but they have always had ride problems.
You're right but another key thing for a smooth ride is large sidewalls and how many cars have thinner ones for aesthetics?
Many people also drive vehicles with solid axles that are very bumpy.
Cars don't have to be optimal in every category, maybe this one will find a niche.
So true and (imho) thin walls are ugly. And less efficient for an EV.
Bigger wheels for bigger brakes, which EVs need because of their massive weight.
US EVs have massive weight, but the European ones do not, and Regen means smaller rotors.
Only the US market is obsessed with stupid ranges that no one does daily. US EVs are just carrying around 1000lbs of excess battery, which takes energy.
BYD Tang (EU market) 380kW, 108kWh, 2600kg
Funnily enough, i didn't cherry-pick the biggest one i could find—i cherry-picked the one i saw that said "EU market". lol