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> I've discovered recently that tire wear actually creates about as many particles as exhaust fumes, at least for cars. Tire wear is directly affected by vehicl

by Tade0 4y ago

> I've discovered recently that tire wear actually creates about as many particles as exhaust fumes, at least for cars. Tire wear is directly affected by vehicle weight. Even better: in terms of particulates, tire and brake wear creates much more nowadays thanks to particulate filters on exhausts. That being said local air quality measurements generally don't follow. The air around highways has an increased amount of PMs, but not by a significant amount. The main difference in favour of EVs is the NOx emissions - diesel trucks produce a lot of that.

vardump 4y ago
Then R&D budgets should be aimed at finding ways to reduce tire particulates. Perhaps some reasonable regulatory incentives as well. EV trucks should fix the issue when it comes to braking. They can mostly regenerate kinetic energy back into charge in the batteries.
specialist 4y ago
> ...in terms of particulates, tire and brake wear... Request to all: More posts about reducing these particulates (from tire and brake wear) please.
- VBprogrammer 4y ago
  Electric vehicles definitely help with particulates from braking. I don't see why they couldn't do active electric braking if required, as apposed to just regeneration.
- Tade0 4y ago
  Audi has a familiar-looking idea how to tackle this: https://www.audi-mediacenter.com/en/press-releases/audi-urban-purifier-the-fine-dust-filter-for-electric-vehicles-14949 https://www.audi-mediacenter.com/en/press-releases/audi-urba... Internal combustion cars do filter a lot of the ambient air already - a 2.0l engine at 2500RPM filters 150m3 of air per hour - that's as much as a small air purifier. It's just that it takes all this clean air and uses it for combustion, thus putting in more dirt than it filtered out.
  - specialist 4y ago
    Audi Urban Purifier's turns autos into Roombas. Neat. Also, I'm wondering about tires which pollute less. Both in their production and usage. To reduce particulates during use, I'm guessing tires will need to be tougher, less grippy. So might require better active suspension and braking systems to maintain current comfort and safety standards.

by Tade0 4y ago

vardump 4y ago

Then R&D budgets should be aimed at finding ways to reduce tire particulates. Perhaps some reasonable regulatory incentives as well. EV trucks should fix the issue when it comes to braking. They can mostly regenerate kinetic energy back into charge in the batteries.

specialist 4y ago

> ...in terms of particulates, tire and brake wear... Request to all: More posts about reducing these particulates (from tire and brake wear) please.

VBprogrammer 4y ago
Electric vehicles definitely help with particulates from braking. I don't see why they couldn't do active electric braking if required, as apposed to just regeneration.
Tade0 4y ago
Audi has a familiar-looking idea how to tackle this: https://www.audi-mediacenter.com/en/press-releases/audi-urban-purifier-the-fine-dust-filter-for-electric-vehicles-14949 https://www.audi-mediacenter.com/en/press-releases/audi-urba... Internal combustion cars do filter a lot of the ambient air already - a 2.0l engine at 2500RPM filters 150m3 of air per hour - that's as much as a small air purifier. It's just that it takes all this clean air and uses it for combustion, thus putting in more dirt than it filtered out.
- specialist 4y ago
  Audi Urban Purifier's turns autos into Roombas. Neat. Also, I'm wondering about tires which pollute less. Both in their production and usage. To reduce particulates during use, I'm guessing tires will need to be tougher, less grippy. So might require better active suspension and braking systems to maintain current comfort and safety standards.