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Electric cars produce less brake dust pollution than combustion-engine cars

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Re: Electric cars produce less brake dust pollution than combustion-engine cars

#691

Post by singleshot_ »

usrusr wrote: post #285
pkolaczk wrote: post #271

Earlier quoted context omitted.

Another part of the point is that you can pack a much smaller and more efficient ICE and then substitute the missing power and torque from electric motors when needed. Most cars are not used at max power all the time. You need max power only at short times when accelerating. With pure ICE there is the tradeoff - a bigger engine will get you more max power / max torque but is going to be less fuel efficient because of…

On paper, yes, but did that ever happen? Sorry for being sarcastic, but where I live the frugal hybrid is exceptionally rare and the "same big engine, but driving a much heavier car" hybrid is omnipresent. The kind of people who might buy the frugal one buy second or third hand while almost all buyers of factory new pick the "same big engine" option, and those are the ones who decide what's available on the second ha…

BMW i8

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#692

Post by sroussey »

baq wrote: post #462
jajko wrote: post #284

Earlier quoted context omitted.

Well there are new classes of idiots I see pretty frequently - a typical tesla driver going 90 in 120 region of highway without any reason, presumably saving last bits of battery (that has at least some rationale, if they do it due to ie fear then they should not be driving or having license). Over say 50km part of highway, maybe 2000 cars need to overtake such almost stationary object (to regular traffic which gener…

> 90 in 120 region of highway so just like any truck. if you think it's a problem, you're the problem. sorry.

Depends on what lane you are in...

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#693

Post by tonymet »

pdabbadabba wrote: post #597
tonymet wrote: post #583

Earlier quoted context omitted.

They address this briefly in the article (though inadequately) , that tire particles are heavier and doesn’t end up in the air like brake dust. But you do raise a good point at the holistic condition, and assessing a broader population with less than ideal configuration. They are looking at lightweight EVs at lower speeds. But Americans drive heavier EVs at highway speeds. The rotors & pads are huge.

> They are looking at lightweight EVs at lower speeds. But Americans drive heavier EVs at highway speeds. The rotors & pads are huge. Perhaps other EV drivers can chime in but, if anything, I think I use my friction brakes less at highway speeds where, in general, you're not really supposed to do a lot of braking. I'd say, overall and regardless of speed, my friction brakes are really used only to bring the car to a…

I'm one of the chill EV drivers too. but imagine the distribution over vehicles that are 30-75% heavier, and the range of drivers from chill to agro (leaning toward agro), and you can see the benefits and costs start to cancel out.

I still expect EVs to be a net improvement on brake dust. just not as massive as the study. maybe about 1/2 - 1/3 of the study's results

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#694

Post by tonymet »

Sohcahtoa82 wrote: post #616
tonymet wrote: post #580

You can get similar results with proper deceleration, engine braking and downshifting. I’ve had brake pads last 110k miles (with room for 20k+ more), even though I lived in moderate hilly area. That’s probably 1/3 the brake dust, and comparable to an EV . If you are getting lower MPG than the EPA rating, you are also burning up your brakes from heavy deceleration. Improve your MPG to 15% over EPA and your brakes will…

> If you are getting lower MPG than the EPA rating, you are also burning up your brakes from heavy deceleration. Improve your MPG to 15% over EPA and your brakes will last a lot longer. 100%. People need to understand that the brake pedal is an evil device that converts your cash into brake dust and heat, so use it as little as possible. Stop accelerating so much in stop-and-go traffic. Drop the "You have to tailgate…

well said

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#695

Post by genewitch »

ZeroGravitas wrote: post #217
genewitch wrote: post #158

Earlier quoted context omitted.

what happens when there's more people that need 20 minutes? it takes me less than five to pull up, fill up, and go. when the gas station is packed, i might have to wait 4-5 minutes for my turn. Now quadruple this. "super extra 1gigawatt charging" isn't coming to my area, potentially ever. Afaik there's two "super chargers" in my metro area, both at dealerships. i've actually never seen a Tesla charger in person.

Why is your civic infrastructure so crippled? I'm not sure if I'd trust driving over bridges or drinking water in a municipality which is incapable of installing electric plugs.

Not everywhere on the planet is huge metros with millions of people.

for instance, my nearest gas station is 2 miles away. The nearest place to actually buy fresh food is a 36 mile round trip.

furthermore calling the gigawatt charging stations "electric plugs" is real disingenuous.

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#696

Post by genewitch »

matsemann wrote: post #211
genewitch wrote: post #158

Earlier quoted context omitted.

what happens when there's more people that need 20 minutes? it takes me less than five to pull up, fill up, and go. when the gas station is packed, i might have to wait 4-5 minutes for my turn. Now quadruple this. "super extra 1gigawatt charging" isn't coming to my area, potentially ever. Afaik there's two "super chargers" in my metro area, both at dealerships. i've actually never seen a Tesla charger in person.

With home charging, I'm almost never charging anywhere else. Maybe a few times a year when doing a longer trip. I just drive, and plug the charger in some times when I get home. I literally never think about range or having to drive a detour to fill it up. But you have to do that probably weekly. And then also spend a lot of money while doing it. It seems you believe those driving EVs are "suckers", but do you realiz…

what about people who live in apartment buildings or houses where they have to park on the street?

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#697

Post by tonymet »

Sohcahtoa82 wrote: post #616
tonymet wrote: post #580

You can get similar results with proper deceleration, engine braking and downshifting. I’ve had brake pads last 110k miles (with room for 20k+ more), even though I lived in moderate hilly area. That’s probably 1/3 the brake dust, and comparable to an EV . If you are getting lower MPG than the EPA rating, you are also burning up your brakes from heavy deceleration. Improve your MPG to 15% over EPA and your brakes will…

> If you are getting lower MPG than the EPA rating, you are also burning up your brakes from heavy deceleration. Improve your MPG to 15% over EPA and your brakes will last a lot longer. 100%. People need to understand that the brake pedal is an evil device that converts your cash into brake dust and heat, so use it as little as possible. Stop accelerating so much in stop-and-go traffic. Drop the "You have to tailgate…

brake wear is also an indicator of overall abuse on the vehicle. If you drive chill, your car will last longer.

I broke an engine mount from heavy acceleration (and hitting a huge pothole) . A lot of strain is put on the chassis from gassing and braking.

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#698

Post by tonymet »

bevr1337 wrote: post #609
tonymet wrote: post #603

Earlier quoted context omitted.

automatic transmissions engine brake as well. most drivers don't use it, a shame. I can smell the ozone on long descents. if they downshifted their automatic, hardly any braking would be needed would be needed.

Mine engine brakes, but it's true that it wouldn't be smart enough to engine brake going downhill. This is my first automatic after a couple decades of manual. It would be really nice improvement for automatics. There are _moments_ where I would like to exercise more control, like the long downhill example or maybe staying in a low gear in bad weather. But, I'm still unconvinced that engine braking on a manual transm…

yeah i agree stoplight clutch braking is unnecessary wear.

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#699

Post by SV_BubbleTime »

chiffre01 wrote: post #641
SV_BubbleTime wrote: post #79

Earlier quoted context omitted.

Wow. Well, I like that the people that think like this also probably live I places where you are actually driving a coal powered car. Like the clowns in Hawaii that have extra subsidies for EVs… their power comes directly from burning crude oil. I’m an automotive EE, and and the truth about EVs is in a rush to push them out the door, the media and politicians have set the tech back at least a decade by pretending it…

Automotive EE engineer? I'm sure everyone here would love your explanation of EV efficiencies vs ICE in different situations.

No they wouldn’t.

The all people here shitting on reality - are doing so because they’re defending their purchases.

Most people with EV as a primary vehicle were fooled into marketing that does not accurately reflect the product, and they don’t want to hear otherwise.

Re: Electric cars produce less brake dust pollution than combustion-engine cars

#700

Post by xyzzyz »

russdill wrote: post #240
altairprime wrote: post #39

Earlier quoted context omitted.

If all of us renters were forced to convert to electric there’d never be an open charger in any city again for the next five years, because no landlord will voluntarily afford that cost, and no municipal region can pass a ballot measure to afford that cost. California’s impending ban of combustion car sales hinges wholly on a magical DC-charging network that doesn’t exist in U.S. cities yet (i.e. at parking meters),…

Where you park, are there lights? Then there's electricity. It's something that's fixable, we just have to have the will to do it. It's worth it.

That’s just not how it works. There might be electricity there, but only enough to charge one car at a time. Works for my home garage, but would not work for apartment complex.
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