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Dust from car brakes more harmful than exhaust, study finds

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Re: Dust from car brakes more harmful than exhaust, study finds

#361

Earlier quoted context omitted.

"It pays off to avoid this: more mileage, marginally lower charging expense, lower cost on brake maintenance and fewer complaints from passengers." Regen braking wears the hell out of your battery. That few hundred you saved on brake changes just cost you a tens of thousands of dollars on a premature battery replacement.

Source for your ridiculous claim?

I'm not sure why they think regenerative breaking is worse than any other charging modality.

Re: Dust from car brakes more harmful than exhaust, study finds

#363
post #317

Earlier quoted context omitted.

Interesting historia I saw. A bus schedule for Geary st from 1924. Buses came every few minutes and took less time than it takes by car today. Just saying electric cars not a panacea for everything.

Yeah, but Geary St. is close to downtown in a fairly large city. At that point, you can argue about whether you'd still want to own a car for casual trips outside the city. But you could survive without one. But I can't walk anywhere from where I live (well, except down to the river in the woods) and there's no real transit system at all. If I couldn't drive, I'd have to relocate.

Yes, but people like you are a special case, not the typical case. Most people live in cities or suburbs.

Re: Dust from car brakes more harmful than exhaust, study finds

#364
post #11
post #4

I wonder if this will spur mandatory regenerative braking in all cars, eventually, as a means of reducing pollutants?

You can gear down in a manual transmission ICE to achieve similar reduction effects, but I doubt they will bring back manuals.

This is available on CVT vehicles too. My Civic Sport Touring has paddle shifters that you can use to simulate gear changes, which is also convenient for winter driving.

On the latest model year, which is a hybrid, the paddles control regenerative braking instead.

Re: Dust from car brakes more harmful than exhaust, study finds

#366
post #24

Earlier quoted context omitted.

E-bikes are unusable at this time of year. It needs to stand stably on it's own to not kill me the instant some ice appears (so, four wheels) and have an enclosed cabin to stop frostbite.

Dress warm, studded tires. People are so averse to any non ideal weather for cycling. Texas, Arizona and Nevada people say it's too hot, West coasters say too much rain, other places say snow and ice. All excuses that can be solved by better personal preparation mixed with safer better maintained cycling infrastructure. https://m.youtube.com/watch?v=Uhx-26GfCBU

You do you, I personally would never bike on roads I would hesitate to drive on, which is what we have here in the winter, especially not an ebike that is going as fast as a car but without any of the protections, in traffic with cars and trucks that will run right over me if I wipe out on some ice.

Re: Dust from car brakes more harmful than exhaust, study finds

#367
post #293

Earlier quoted context omitted.

Maybe, but that still isn’t solving the root of the problem. There are a ton of ways in which cars harm us — exhaust, brake dust, tire dust, etc. The only actual solution is to reduce car usage.

Why can't we have both? Until we do convince uncle Jack and his friends to stop voting for things against humanity, at least those things could be made less harmful

Why do we think we can convince Uncle Jack to vote for mandatory regenerative brakes?

Re: Dust from car brakes more harmful than exhaust, study finds

#368
post #122

Earlier quoted context omitted.

I have a newer automatic ICE and they use cylinder deactivation for engine braking on low speed coasting.

Isn't cylinder deactivation for when you are at constant speed at low throttle?

They open the exhaust valves of every cylinder while coasting.

Therefore, the engine keeps running, but there is no combustion.

You can see your live fuel consumption go to 0 when you lift the gas pedal on a modern ICE car.

Re: Dust from car brakes more harmful than exhaust, study finds

#369

Earlier quoted context omitted.

"natural latex rubber" Worldwide switch-over will destroy forest ecosystems in Malaysia, Indonesia and Africa and more to replace it with Rubber tree plantations.

Did you read the links I posted? They can be made from dandelions. More info can be found in this previous thread: https://news.ycombinator.com/item?id=37727040 Personally I would love to see a world of 100% transit, bicycles, walking, etc., but let’s be realistic. As long as we’ve got cars, we might as well try to do as much as we can to reduce the amount of pollution they generate.

In previous thread, I made same comment and got same response. So maybe time to stop worrying about forests and look into my memory.

Re: Dust from car brakes more harmful than exhaust, study finds

#370

Earlier quoted context omitted.

>astroturf Is the much greater weight of EVs not worse for tire and road wear?

Road wear? Not really. Tire wear? In the strictest sense, yes. But keep in mind, a lot of those studies measured "ev" tire wear by throwing a bunch of weight into the trunk of a gas car. Not exactly the same thing. Holistically, particle emissions from EVs are lower than gas powered cars due to reduced breaking (even above hybrids) and reduced exhaust. At the end of the day, the vast vast vast majority of road wear a…

Isn't road wear scale with the 4th power of vehicle weight?

EV vehicle weight definitely moves some needles in the wrong direction.

A Toyota Corolla weighs about 3,000, the Tesla model 3 weighs 3,500-4,000 depending on which model you buy. So a 16-33% increase in vehicle weight.

A Corolla will do 8.1 x 10^13 'damage points' A light model 3, 1.5 x10^14 'damage points' And a heavy model 3, 2.6x10^14

So moving to EV vehicles would move the damage done by the average commuter by an order of magnitude.

There are of course much heavier vehicles on the road as well, such as a standard empty garbage truck weights around 33k pounds and will do 1.2 x 10^18 damage points. So significantly more wear per mile traveled, but there are also far more vehicle miles traveled by those lighter class vehicles as well.

EV are probably still a net positive, but the real solution is to stop designing our cities and transportation systems exclusively around low occupancy vehicles. Walking, biking, and transit, also need to.be options for getting around.

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