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Michelin's airless tires are scheduled for market launch in 2024

interestingengineering.com

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Re: Michelin's airless tires are scheduled for market launch in 2024

#71

Earlier quoted context omitted.

Not for me. But I'm running uBlock Origin with Javascript disabled. It rendered perfectly.

Then how did you reject the cookies?

Sometimes I see "Accept" on some website. Are some cookies opt-in and other opt-out depending on the legislation ?

Re: Michelin's airless tires are scheduled for market launch in 2024

#72

Earlier quoted context omitted.

>Connected: Reports tread status and configuration, e.g. to inform the driver that he should change to a winter tire tread. That sounds like everything that's terrible about printer ink but with the decimal moved once to the right. I can imagine a world where your tires stop working because you had them re-treaded with a tread pattern or the OEM won't honor a warranty item because you didn't use an approved brand of…

Truck tires are retreaded all the time. It’s why you see bits of tread on the highway. They do fall off now and then. Apparently saves a lot of money.

Surely it saves a lot of rubber waste too? Like 90%+ of the rubber mass of a typical tire must be in the parts that never contact the road and therefore should be good forever?

Re: Michelin's airless tires are scheduled for market launch in 2024

#73
post #51
post #45

>Through its Vision Concept, the company wants to make tires that are airless, rechargeable, connected, and sustainable. 1) airless, check. 2) rechargeable ?? 3) connected ?? 4) sustainable ??

The embedded video seems to show that you can 3d-print on top of an existing tire, which would let you "recharge" for a certain number of km. It's also more sustainable that way.

Hmmm, I doubt about the actual duration of something just 3D printed over, in the sense of adhesion, I remember the process to join (rubber based) watertight expansion joints and it involved (after preparation of surfaces and application of adhesive) some half hour pressed into a heated aluminium cast. (and the procedure is similar AFAIK for retreading tyres currently in use)

On the other hand, they were common in Italy in the '70's and '80's, there were truck tyres that instead of being re-treaded with the "hot" process above were thinned and grooved on a sort of lathe and then a monolithic external "ring" that included the tread on the outside and matching grooves inside was applied, when the tyre was inflated the grooves and the pression made the two stay together (until the tyre was punctured, it was not so rare that you could find on roads these outer rings lost by some truck that had a flat wheel).

Re: Michelin's airless tires are scheduled for market launch in 2024

#74
post #45

>Through its Vision Concept, the company wants to make tires that are airless, rechargeable, connected, and sustainable. 1) airless, check. 2) rechargeable ?? 3) connected ?? 4) sustainable ??

Rechargeable: Adding tread. Connected: Reports tread status and configuration, e.g. to inform the driver that he should change to a winter tire tread. Sustainable: Recycled and recyclable.

A very small fraction of plastics are recyclable. I highly doubt whatever this tire is, it's not recyclable.

Re: Michelin's airless tires are scheduled for market launch in 2024

#75
post #12

Earlier quoted context omitted.

Nothing snobbish about wanting silent tires. Tires are one of the main factors for road noise, and road noise causes adverse health effects and death on a large scale.

Death on a large scale? This is the first time I’m hearing of this and I’d be interested to read more. Do you happen to have a study or something I can read?

here's something

https://academic.oup.com/eurheartj/article/36/39/2653/239823...

or this

https://forcetechnology.com/en/articles/traffic-noise-danger...

200-500 annual Danish deaths related to road noise pollution. Thats more than the number of people killed in traffic yearly.

Re: Michelin's airless tires are scheduled for market launch in 2024

#76

Earlier quoted context omitted.

Rechargeable: Adding tread. Connected: Reports tread status and configuration, e.g. to inform the driver that he should change to a winter tire tread. Sustainable: Recycled and recyclable.

>Connected: Reports tread status and configuration, e.g. to inform the driver that he should change to a winter tire tread. That sounds like everything that's terrible about printer ink but with the decimal moved once to the right. I can imagine a world where your tires stop working because you had them re-treaded with a tread pattern or the OEM won't honor a warranty item because you didn't use an approved brand of…

Don't forget fridges:

https://news.ycombinator.com/item?id=28478438

Will single tyres e-mail you singularly or as a group?

I mean:

Hi, I am your left front tyre and wished to tell you how ...

or:

We, the tyres of your car, have determined that ...

Re: Michelin's airless tires are scheduled for market launch in 2024

#77

Earlier quoted context omitted.

Rechargeable: Adding tread. Connected: Reports tread status and configuration, e.g. to inform the driver that he should change to a winter tire tread. Sustainable: Recycled and recyclable.

A very small fraction of plastics are recyclable. I highly doubt whatever this tire is, it's not recyclable.

They answered that part: using recycled plastic and making the tyre recyclable and organic(!) are “in the future”

Reducing the amount of particulate pollution, however, is apparently not part of the remit.

Re: Michelin's airless tires are scheduled for market launch in 2024

#78

Earlier quoted context omitted.

It’s also a decent chunk of what causes economic blight for housing nearby highways.

Any noise a normal-ish passenger car is of no consequence compared to the noise of heavy trucks and motorcycles. You don't even notice it. It's only "blighted" because the people who self select to live beside a highway tend not to be the ones who care a ton about making their residence look nice from the street (manicured lawn, nice siding, sealed driveway, etc, etc) so the prices stay cheap, the rents stay low and…

I disagree. The difference that I and many other people noticed on city streets during the initial COVID lockdowns was enormous. Cities aren’t loud places, the continuous white noise from passing passenger vehicles is the loud part.

60 km/h traffic is 10 times louder than people having a conversation.

Re: Michelin's airless tires are scheduled for market launch in 2024

#80

Earlier quoted context omitted.

Rechargeable: Adding tread. Connected: Reports tread status and configuration, e.g. to inform the driver that he should change to a winter tire tread. Sustainable: Recycled and recyclable.

A very small fraction of plastics are recyclable. I highly doubt whatever this tire is, it's not recyclable.

This is not true. Essentially, all plastics are recyclable, and it merely depends on the technology available.
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