Earlier quoted context omitted.
The drum brakes or the rotors? Certainly not the disk brake pads!
Yeah, the pads lasted that long. It was a manual and I did engine break pretty often.
* engine brake
Dust from car brakes more harmful than exhaust, study finds
431–440 of 465 posts
Re: Dust from car brakes more harmful than exhaust, study finds
#432Earlier quoted context omitted.
There's nothing categorical about EVs that make them eat tires. The aggregate data about average EV tire life is skewed by the relative popularity of and poor choices made by Tesla.
But we agree that heavier cars have more tire wear. And EV cars tend to be heavier then comparable combustion cars.
> According to a 2022 study from the Environmental Protection Agency, the average weight of a car is 4,094 pounds.
https://www.bankrate.com/insurance/car/average-car-weight/
Model 3 Curb Weight: 3,552–4,048 lb
Re: Dust from car brakes more harmful than exhaust, study finds
#433Earlier quoted context omitted.
But we agree that heavier cars have more tire wear. And EV cars tend to be heavier then comparable combustion cars.
> According to a 2022 study from the Environmental Protection Agency, the average weight of a car is 4,094 pounds. https://www.bankrate.com/insurance/car/average-car-weight/ Model 3 Curb Weight: 3,552–4,048 lb https://en.m.wikipedia.org/wiki/Tesla_Model_3
Model S 4,323 – 4,960 lbs
Model X 5,248 lbs
Model Y 4,209 - 4,363 lbs
So what’s your point?
That EV cars exist that are less heavy than the average car?
That’s not why I said, I said comparable combustion cars are less heavy than their EV counterpart.
Re: Dust from car brakes more harmful than exhaust, study finds
#434Earlier quoted context omitted.
> According to a 2022 study from the Environmental Protection Agency, the average weight of a car is 4,094 pounds. https://www.bankrate.com/insurance/car/average-car-weight/ Model 3 Curb Weight: 3,552–4,048 lb https://en.m.wikipedia.org/wiki/Tesla_Model_3
Model S 4,323 – 4,960 lbs Model X 5,248 lbs Model Y 4,209 - 4,363 lbs So what’s your point? That EV cars exist that are less heavy than the average car? That’s not why I said, I said comparable combustion cars are less heavy than their EV counterpart.
If that’s your point why didn’t you provide any comparisons to equivalent ice models?
Let’s look at some comparisons since that is your point:
> Starting with the Tesla Model 3 weighing in at between 1777Kg and 1840Kg
> A comparable ICE car the BMW 3 series 1570Kg - 1965Kg
> And another ICE car the Mercedes C class 1665Kg - 2190Kg
> And finally another EV the Ford Mustang Mach-E 1993Kg - 2218Kg
https://www.quora.com/What-is-the-perception-of-Tesla-cars-b...
So there’s not much in it. EVs do tend to be 10-15% heavier for the same model in EV vs ICE but the point is brought up constantly as if they are twice as heavy, or at least significantly heavier. In reality picking a model 3 would for your next car would bring the average weight of US new cars down which I think is interesting, no?
Re: Dust from car brakes more harmful than exhaust, study finds
#435Earlier quoted context omitted.
"Since downforce comes mostly from vehicle weight the maximum available acceleration/deceleration (grip) is nearly identical across lighter and heavier vehicles for a given tire compound and tread pattern." What? Was this written by AI?
It's literally just physics. Couloumb (static, or dry) friction is F_f = μF_n where F_f is the frictional force (grip) of tires in this case and F_n is the normal force between the ground and the tires due to the mass of the vehicle. μ ranges from 0.8 to 1 or more in modern tires. Since F=ma and F_n is 9.8 N/kg due to gravity, F_f = μ * 9.81 * m and a = F/m = μ * 9.81 * m / m, and finally a = μ * 9.81 m/s^2.
Oh I get what you're saying. You get more grip, but the vehicle also has that much more momentum.
Re: Dust from car brakes more harmful than exhaust, study finds
#436Earlier quoted context omitted.
This is why Tesla’s are best selling EVs. Only cynics and idiots buy anything else. Either way I am deeply sorry for them.
Thanks for your deep sorrow for this idiotic cynical nissan leaf owner. Love you too
Leaf would've been decent if not battery health issue and crazy charging port. Cleary Nissan doesn't want it so succeed. I nearly bought one as my spare EV for short trips nearby (they can be had for 1.5k NZD here). But minivan is just more useful for short trips, and doesn't break a bank either.
Re: Dust from car brakes more harmful than exhaust, study finds
#437Earlier quoted context omitted.
These locations are probably not financially sustainable. I would also say it's not impossible to make them urban friendly. For example, I think of stroad as opportunities to implement public transportation by getting of a lane or two. It is also easier to add bike lanes since you aren't constrained by how wide the streets are.
> These locations are probably not financially sustainable. Farms, factories and logistics centres generally turn a profit. Not everyone has a desk job.
I am talking about taxation and being able to provide essential services. Not everything need to turn a 'profit' but government budgets are not unlimited.
Re: Dust from car brakes more harmful than exhaust, study finds
#438Earlier quoted context omitted.
It's Lenz's Law, friend. It's as much a design point as a=F/m. Because of it, induction motors and magnet synchronous motors generate more torque at 0RPM than any combustion engine I've heard of. You could have software limiters, but you'd need regulatory mandates for that. Actually, I support that. 3+ ton trucks with a sub 4s 0-60 shouldn't be street legal. Or they should at least require a special license and liabi…
All EVs already use limiters because, as you correctly noted, just shorting the battery across the motor will rip the axles off and set the battery on fire. The question of whether an EV should put down grip-limited amounts of torque, or should limit itself to .5g at most, is a question of tuning.
So... you're saying electric motors are inherently torquier?
Re: Dust from car brakes more harmful than exhaust, study finds
#439Earlier quoted context omitted.
If you have an EV and you care about health and the environment, use regenerative braking as much as humanly possible. Hint: driving fast or tailgating both increase the odds you'll have to use the friction brakes.
The comment you replied to mentioned EV tire wear, not brake dust. The heavy weight of EVs due to the batteries is always going to cause more tire pollution. E.g., Ford F-150 Ford Lightning has a curb weight of up to 6,500 lbs, which compares to the regular F-150's curb weight that ranges from anywhere between 4,021 lbs and 5,014 lbs. The Rivian R1T is 7,148 lbs.
Interesting, my 2011 F150 is about 6200 pounds. Didn’t they switch to aluminum bodies in 2015 or so?
Re: Dust from car brakes more harmful than exhaust, study finds
#440Earlier quoted context omitted.
They do. But if you brake too agressively, they switch to friction brakes. It pays off to avoid this: more mileage, marginally lower charging expense, lower cost on brake maintenance and fewer complaints from passengers.
"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.
Really curious about this, since regen braking is Standard on all EVs