Booting hybrids from carpool lanes slows all

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Originally posted by Pele

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Originally posted by NoSUV

And, as you are also likely aware, hybrids have about 20% of the pollution as conventional vehicles (sedan to sedan; if you compare to SUV's, the hybrids have a MUCH better advantage).

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You factoring in the fuel is cost to run the equipment at the strip mine where they dug up the Nickel for your NiMH battery packs?

How about the cargo ship that moved the nickel from Canada to Japan for battery pack manufacturing?

Also, have you factored in the replacement battery pack? Both my Honda CRX and Ford pickup are from the late 80's with over 300,000 miles on them each... I guarantee you'll go through at least two battery packs in 20 years.

Carbon footprint envy is BS.

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Times to beat:
Horner Rd to/from Pentagon: 12 mins Without Slugs - 17 mins With slugs
Dale City exit to/from 3rd St Tunnel, D.C. 18 mins (No slugs - Holiday)

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Pele - previously asked and answered. Your concerns have been proved bogus.

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Quite wrong.

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In the context of the article you posted, which dealt with commuting times and not pollution, my comments are Quite Correct.

If you want to talk about pollution we can, of course.

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And, as you are also likely aware, hybrids have about 20% of the pollution as conventional vehicles

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My understanding is that the 20% number was calculating assuming a mix of city and highway driving. The HOV lanes do not present such a mix. It is all highway.

I went to www.fueleconomy.gov to see how comparable cars compare in highway gas milage between hybrid and conventional models. According to them, a conventional 2011 Camry with a 2,5 liter 4 cylinder engine and automatic transmission gets 32 mpg. A hybrid Camry with 2.4 liter 4 cylinder engine and automatic transmission gets 35 mpg, or 9.375% more. I am not sure exactly how mpg relates to emmisions, but I am certain that a 9.375% increase in gas milage does not translate into an 80% reduction in emissions. I am equally certain, based on these numbers, that a single occupant hybrid does not produce less pollution per occupant than a comparable conventional vehicle with three occupants.

Dale H

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Originally posted by NoSUV

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Originally posted by ETC

Hybrid owners will not be keeping their cars to 100,000 miles. They'll be trading it in before the hybrid battery expires to avoid the $3000 replacement cost.

Also the hybrids have two batteries: the regular car battery and the rechargeable one. And they have to change their brake pads more frequently because of the charging method.

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There is no difference in the brake pad wear from a non-hybrid vehicle.
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Originally posted by ETC

And they have to change their brake pads more frequently because of the charging method.

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Actually, your both wrong, they need to change their break pads LESS frequently. All diesel trains are hybrids that use regenerative breaking (ie, "hybrid breaking") even though they don't have energy storage BECAUSE it is easier on the breaks. They actually just dissipate the energy produced from regenerative breaking using giant resistors.

Think about it, there are only two places the kinetic energy can go when a car slows down. When it uses break pads, all of it goes into rubbing against and heating the break pads which slowly kills them. When a car uses regenerative breaking, the energy goes through a generator into a battery and puts no wear on the break pads.

There's not much difference though for hybrid cars b/c most of the wear on break pads comes from quick stops, which hybrid cars still use break pads for.

Actually, your both wrong, they need to change their break pads LESS frequently. All diesel trains are hybrids that use regenerative breaking (ie, "hybrid breaking") even though they don't have energy storage BECAUSE it is easier on the breaks. They actually just dissipate the energy produced from regenerative breaking using giant resistors.

Think about it, there are only two places the kinetic energy can go when a car slows down. When it uses break pads, all of it goes into rubbing against and heating the break pads which slowly kills them. When a car uses regenerative breaking, the energy goes through a generator into a battery and puts no wear on the break pads.

There's not much difference though for hybrid cars b/c most of the wear on break pads comes from quick stops, which hybrid cars still use break pads for.

But how are Hybrids on Brake Pads? [:)]

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Originally posted by colossus911

Yep, Journal of Industrial Ecology report from the WSJ. More carbon emissions than gas. Facts are tough things.

http://online.wsj.com/article/SB10001424127887324128504578346913994914472.html?mod=rss_opinion_main

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Looks like you forgot to read the article, and its assumptions - not facts. It makes assumptions about the manufacture that are not proven, it makes assumptions that are just wrong about the life of component parts, and it makes assumptions that seem unlikely about the total mileage of the vehicle before it is scrapped.

Yep - you are wrong AGAIN.

BTW, my 2002 Prius is still on the original battery, and has 3x the mileage quoted in the article. Try again when you have FACTS.