81–90 of 316 posts
Earlier quoted context omitted.
Maybe the noise they generate is good for EVs which are dangerously quiet for pedestrians?
Some EVs have mandatory sound emitters to not be fully silent (and thus dangerous). I thought it was weird harmonics from the synRM engine but it's synthetic and enforced by regulations.
Former automotive engineer chiming in. "Tweels" have been around a long time, but have always failed in terms of "NVH" (noise, vibration, harshness). Michelin is claiming that this generation of tweels are appropriate for passenger cars, which means that they think they've solved the NVH problem. They seem to be marketing these alongside EVs, I wonder if they're only really intended for lighter, compact-style cars. (…
Complete layman here, every 6 months or so for the past decade I see an article claiming someone got air-less tires working. What are the chances this would be it ?
Earlier quoted context omitted.
Other comments here say that production tires will have sidewalls to protect the spokes and keep out rocks. If so, I'm a bit disappointed since I like the look of the spokes. Regarding catastrophic collision with sharp edge, I think these tires will be susceptible as well. If it's enough of a bump to "bottom out", it's going to dent the rim. Also, your comment about potholes reminded me of a time that I was driving w…
Are those spokes or springs? My mind had defaulted to "springs" given the zipzag shape and the typical function of a pneumatic tire. It didn't occur to me that they could function like spokes, where the vehicle hangs off the upper springs, until I read your comment. Why would the rim be so large and solid?
Not sure. Makes me think that it would be a good idea to make the inner rim diameter smaller, and have another layer of spokes/spings with a higher compression force.
shouldnt they be “closed” laterally for aerodynamics, to block dirt and snow from getting stuck inside? guess these will collect dirt 100 times more than regular tires no? update: similar questions here https://m.youtube.com/watch?time_continue=206&v=sc8ghIqKqnI&...
Former automotive engineer chiming in. "Tweels" have been around a long time, but have always failed in terms of "NVH" (noise, vibration, harshness). Michelin is claiming that this generation of tweels are appropriate for passenger cars, which means that they think they've solved the NVH problem. They seem to be marketing these alongside EVs, I wonder if they're only really intended for lighter, compact-style cars. (…
Earlier quoted context omitted.
EVs are quite heavy for their footprint due to the weight of the batteries.
There are exceptions though like the upcoming Aptera which only weighs around 800 kg even with a large range.
I don't worry about punctures at all, despite living in a country with a shitty roads. What I worry about A LOT is a catastrophic collision of tire with a 90 degree sharp pothole edge, often made by roadworkers before doing point repair, which potentially can destroy tire irreparably. I wonder if these tires are better protected against such impacts, and just looking at them it seems they are - no side walls which ar…
Other comments here say that production tires will have sidewalls to protect the spokes and keep out rocks. If so, I'm a bit disappointed since I like the look of the spokes. Regarding catastrophic collision with sharp edge, I think these tires will be susceptible as well. If it's enough of a bump to "bottom out", it's going to dent the rim. Also, your comment about potholes reminded me of a time that I was driving w…
Earlier quoted context omitted.
EVs are quite heavy for their footprint due to the weight of the batteries.
There are exceptions though like the upcoming Aptera which only weighs around 800 kg even with a large range.
shouldnt they be “closed” laterally for aerodynamics, to block dirt and snow from getting stuck inside? guess these will collect dirt 100 times more than regular tires no? update: similar questions here https://m.youtube.com/watch?time_continue=206&v=sc8ghIqKqnI&...