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EVs actually make this problem worse because they are heavier. Both brakes and tires release toxic pollution. While I fully admit that these are all engineerin
by nwah1 6y ago
EVs actually make this problem worse because they are heavier. Both brakes and tires release toxic pollution.
While I fully admit that these are all engineering challenges that people could make progress on, there's also much simpler and more immediately actionable ways to improve this situation. Like encouraging walkable neighborhoods.
- Thlom 6y agoEVs don’t actually use the brakes much as they often have very aggressive regeneration. Rust on underused brakes is a problem on my EV at least. :-)
- Retric 6y agoAlso, while I can see various synthetic tires being an issue, is vulcanized natural rubber actually a problem? It’s starting off as tiny particles which should degrade fairly quickly.
- PaulDavisThe1st 6y agoFrom HN earlier today: https://www.hakaimagazine.com/features/when-rubber-hits-the-road-and-washes-away/ https://www.hakaimagazine.com/features/when-rubber-hits-the-...
- Retric 6y agoThe finished product isn’t considered toxic, but some individual ingredients are, including heavy metals like cadmium and lead, and high aromatic oils (more commonly known as polycyclic aromatic hydrocarbons or PAHs) So, presumably non synthetic tires are actually fine. Though, it’s not clear if that was the intent of the article.
- nwah1 6y agoRegenerative brakes rely on friction just like any other. Pollution is a given.
- durkie 6y agoWhat friction? The "regenerative" part is from the motors being driven in reverse and returning power to the battery.
- nitrogen 6y agoRolling friction in the tires / the contact patch's static friction.
- culopatin 6y agoThis variable is a constant between both types of brakes. How is this relevant when comparing brakes? They both need it, one puts energy into a battery, the other one just heats up air due to the friction created by the system.
- nitrogen 6y agoIt's relevant to the question of whether regenerative braking produces dust from tire wear.
- TheGallopedHigh 6y agoAs compared to just straight braking — hence it’s irrelevant
- nitrogen 6y agoThe whole thread started with this message: > Regenerative brakes rely on friction just like any other. Pollution is a given. The article is about pollution from tires. Regenerative breaking can't cheat the laws of physics. That force has to be applied to the road through tires, just like any other form of wheel braking. And tires have significantly more mass to shed over their lives than brake pads.
- deleted 6y ago
- artvark11 6y agoCould you explain how the rust is causing an issue on your brakes? Siezed piston or pin?
- Thlom 6y agoIt's the brake disc. Some rust on the surface is not a big problem, but if it starts digging in to the metal mass it will cause reduced brake capacity. In Europe a car with lots of rust on the brake disc will not be certified for use (mandatory checkup every two years) until the brake discs have been replaced.
- Hnrobert42 6y agoHow about both? Why frame it as either/or?