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Adoption of EVs tied to real-world reductions in air pollution: study

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Re: Adoption of EVs tied to real-world reductions in air pollution: study

#151

Post by SecretDreams »

princevegeta89 wrote: post #3

No surprises. No matter how we look at it, EVs are much friendlier and safer to the environment. Some people argue the source of electricty can be contested against because that involves fossil fuel burning again, but in today's world we are rapidly moving away from it and towards nuclear/hydel/wind methods for generating power. I hope ICE cars completely become a thing of the past in the next couple of decades to co…

Even if the fossil fuel argument at the source was/is valid, it's infinitely more efficient to do it at the source than in a car. You can extract far more energy and do better to mitigate byproducts.

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#152

Post by conk »

ares623 wrote: post #4
princevegeta89 wrote: post #3

No surprises. No matter how we look at it, EVs are much friendlier and safer to the environment. Some people argue the source of electricty can be contested against because that involves fossil fuel burning again, but in today's world we are rapidly moving away from it and towards nuclear/hydel/wind methods for generating power. I hope ICE cars completely become a thing of the past in the next couple of decades to co…

I just hope "dumb" EV's become a thing soon. I cannot and will not own a smart car any more I want to own a smart TV or smart fridge or smart toaster.

Just get a used one that’s a decade old. The cell providers will all move on past 3g/4g etc and the cars won’t be able to connect. Plus I’m sure no one is paying to keep a cell connection going for a decade old EV.

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#153

Post by driverdan »

Aurornis wrote: post #96
Der_Einzige wrote: post #47

Earlier quoted context omitted.

A lot of Americans take their cat off on purpose for louder noises. Additionally, a lot of conservatives love to "Roll coal", and literally will shit up the environment on purpose just because they feel schadenfreude from pissing of an environmentalist.

> A lot of Americans take their cat off on purpose for louder noises. Some people remove catalytic converters when they install a performance exhaust. Nobody is doing it for louder noises because the muffler portion is what dampens the sound. Also I wouldn’t say it’s “a lot of Americans”. We have emissions inspections in most major cities and your car won’t pass if you remove the catalytic converter. They can now det…

> Nobody is doing it for louder noises because the muffler portion is what dampens the sound.

Cats also act as mufflers, they significantly reduce the sound coming out the exhaust.

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#154

Post by cyberax »

eldaisfish wrote: post #82
princevegeta89 wrote: post #44

Earlier quoted context omitted.

Depends. They get a virtually continual supply of standby power that can last for months if left untouched. So from a technology standpoint that enables them to do many things - from being connected to the network, aware of their location on the map, recording camera footage and other remote capabilities. ICE cars do have some of these but the huge battery packs on EVs make these very feasible.

you are mistaken. Not a single EV or hybrid car uses power directly from the traction battery for the 12 V system.

It depends on your definition. Tesla Model 3 has a dedicated low-current connection to the high-voltage battery that bypasses the main contactors, specifically to power the 12V system.

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#155

Post by zdragnar »

stevenjgarner wrote: post #113
sagarm wrote: post #95

Earlier quoted context omitted.

I assume GP meant cars with internet connectivity features, not (real) self driving tech.

The assertion that 'I just hope "dumb" EV's become a thing soon' led me to a different assumption. The ultimate aspiration of a "smart" EV is self-driving, which incorporates Internet connectivity features (e.g. digital mapping, over the air updates, etc).

"Smart" in all other classes of purchases typically means IoT / Internet connected.

The computerization of formerly mechanical features making it harder to DIY repair is a separate but also valid concern, though I'm not sure how it applies to EVs.

Added: see https://x.com/IntCyberDigest/status/2011758140510142890 for exactly the kind of thing that nobody wants.

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#156

Post by baby »

You can already tell how much of a difference it makes in a city. Visiting Boracay after visiting other philipin island is heaven. I heard some Chinese cities are basically just EV, I can’t imagine how much nicer it could be to walk through New York without all that noise pollution

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#157

Post by margalabargala »

fafac wrote: post #147
margalabargala wrote: post #131

Earlier quoted context omitted.

> but use regenerative braking, which is better for brake dust Which unfortunately also increases tire wear from regen braking during periods when an ICE vehicle would be coasting without braking. EVs are much (much much) better for CO2, much better for brake dust, and much worse for tire dust.

The tires and their dust don't care whether you're braking by regen or friction. The reason there's more dust is from the increased weight of the EV not because of regen braking. You can coast in EV as well, that is not exclusive to ICE.

> The tires and their dust don't care whether you're braking by regen or friction.

I'm aware. The point I'm making is that EVs apply more braking than ICE vehicles do, due to the specifics of the implementation of regen braking that all manufacturers have chosen.

> You can coast in EV as well

Not without literally putting it in neutral. If you just take your foot off the accelerator, any modern EV will apply some amount of regenerative braking. It's not really possible to hold the accelerator pedal at the exact position where you are not applying motor power but also have 0kW of regen braking, certainly for any extended period of time.

If your point is that someone could make an EV to which regen braking contributes no more to tire wear than an ICE vehicle, you're correct. Unfortunately, no such EVs are currently manufactured. Even the ones that allow you to "turn off" regen braking will generally apply 1-2kW of regen if your foot is off the accelerator.

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#158

Post by driverdan »

didip wrote: post #73

Anyone can argue ICE vs EV all night long but there's only 1 metric I care about, in favor of EV: When I am going to take my son to school, he doesn't have to smell the gas and the fumes from the exhaust in the garage.

How long are you running the car in your garage? A minute of idling isn't going to cause any problems.

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#159

Post by m463 »

MBCook wrote: post #28
princevegeta89 wrote: post #3

No surprises. No matter how we look at it, EVs are much friendlier and safer to the environment. Some people argue the source of electricty can be contested against because that involves fossil fuel burning again, but in today's world we are rapidly moving away from it and towards nuclear/hydel/wind methods for generating power. I hope ICE cars completely become a thing of the past in the next couple of decades to co…

The number of ICE cars I get stuck behind from time to time that just REEK is amazing. I’m in a decently well off area too. Some putting off soot clouds, white smoke, nothing visible but clearly not doing complete combustion. Sometimes I wonder if half the cylinders are even working. I’ve heard one car like that is the equivalent of a surprisingly large number of modern ICE cars is in good shape. I love EVs. I’ve had…

Speaking of smells....

One good thing about driving an EV is that weird oil or hot coolant smells are from someone else's car (and not a problem with your car)

(although yes technically many EVs have coolant loops)

Re: Adoption of EVs tied to real-world reductions in air pollution: study

#160

Post by cyberax »

thelastgallon wrote: post #127
lagniappe wrote: post #97

I want the future to focus more on the brakes and tire dust, and the increase in cancers and other problems by people who live near busy roads or highways experience. Nobody studies this, and combustion or battery, everyone is affected by it. Even playgrounds are filled with shredded tires, which borders on biohazard.

The best solution is to build walking or biking environments. This was discussed before: https://news.ycombinator.com/item?id=43672779 (saving a click) We need to start taxing vehicles based on the damage they are responsible for. The 4th Power Law is a principle in road engineering that states that the damage a vehicle causes to a road surface is proportional to the fourth power of its axle load. This means that eve…

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