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Hybrid Prius that gets over 100 Miles per Gallon

74 messages,  Last post on Mar 11, 2008 at 12:31 PM

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What is this discussion about? Toyota Prius, Ford Escape Hybrid, Lexus GS 450h, Fuel System, Engine, Hybrid Cars, Future Vehicle, Hatchback, Sedan, SUV


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#16 of 74
Re: Toyota Prius [pathstar1] by gagrice
Jul 05, 2006 (11:43 am)
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Replying to: pathstar1 (Jul 05, 2006 10:56 am)

I read something about Ovonics/Cobasys being involved in hydrogen storage. My only emphasis is that many folks think that everything good in automotive comes from Japan. Many thought that Toyota invented the NiMH until they got sued and lost. Toyota is in court over the HSD system as well. GM was screwed by CARB on the electric vehicle. The mandate should not have been made then pulled. All of the Big 3 built hybrids in the early 1990s. None came to market as they were too costly and they thought they would not sell. Toyota called that one right. Are they making any money at it? Who knows?
 
I personally would rather see a simple electric vehicle for running errands with a 50 mile range. Much easier to build and maintain. Would satisfy a lot of people's needs. As long as modifying a Prius is the only option for PHEV, I don't see that as practical. There is just too many things that can go wrong and not be covered by a warranty.
#17 of 74
Re: Toyota Prius [gagrice] by timinalaska
Jul 05, 2006 (4:32 pm)
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Replying to: gagrice (Jul 05, 2006 11:43 am)

Regarding the last post, I'm not sure why you say that 'GM' was screwed by CARB on the electric vehicle. GM was very aggressive in getting CARB to remove the mandate. GM and other auto manufacturers did not want the mandate, and were actually successful in changing the mandate to only force the auto industry to produce electric cars 'per' consumer demand versus a specific number. The auto industry makes money on auto parts and repair.
 
The electric vehicle is very clean, never needs oil changes, and has many less moving parts. When the EV1 was around, it needed very little maintenance. The auto industry relies on cars needing parts, oil changes, etc, especially dealerships. I forget what the exact percentage is, but dearlerships make a large portion of revenue from their repair shops. The EV1 was very successful and had a range of about 80 miles, and 'could have' been marketed succesfully. GM and other auto makers (and oil companies) did not want electric cars around.
 
When GM1 ended the leases to the EV1, rather than simply selling the cars to the leasees, they forced leasees to return the cars against their will. The cars then got crushed and went into the shredder. Why not just sell the EV1s that have already been driven. Toyota finally allowed some customers to keep the RAV4 EV after consumer protest against Toyota also forcing customers to return the vehicles and then crushing them.
 
GM and other auto makers did not want anything to do with electric vehicles even when there was customer demand for them. There is more information about this at www.whokilledtheelectriccar.com and the movie is being shown throughout hundreds of theatres across the nation over July and August.
#18 of 74
Re: Toyota Prius [timinalaska] by gagrice
Jul 05, 2006 (6:31 pm)
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Replying to: timinalaska (Jul 05, 2006 4:32 pm)

OK, I pretty much agree with your analysis. I think we the public got screwed and GM indirectly got screwed by CARB. They could have stayed the course on demanding 10% of the cars to be ZEV. Instead the little minds at CARB went for the hybrid carrot. Hybrids may be OK but as you put it so well, they will be money makers in parts for the automakers. GM lost the lead in ZEV cars that it held for a very short time. I don't think they wanted any responsibility for replacement parts on the EV-1. It was easier to scrap than carry parts for them. Toyota is still on the hook for warranty on the last of the RAV4 EVs sold in 2003. I will have to rent that movie when it comes out on DVD.
#19 of 74
Lithium-ion batteries for Hybrids? by toyoinfo
Jul 06, 2006 (7:56 am)
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Interesting article on a "potential" battery future for Hybrids...
 
The great light hope for hybrid vehicles
Lithium ion could be the wonder battery that enables automakers to make big profits on hybrids
 
Richard Truett | | Automotive News / June 19, 2006 - 6:00 am
 
Batteries may be the key to the future of gasoline-electric hybrids.
 
If hybrids are ever going to earn automakers a profit, the cost of the batteries must decrease while the life of the battery pack increases. The number of battery suppliers also must expand so that batteries are just another commodity, like windshield wipers and headlights.
 
Lithium ion -- the same type of powerful, compact battery in your cell phone and digital camera -- could be the wonder battery that delivers all that and more.
 
Virtually all of today's hybrids use nickel-metal hydride batteries. Nickel metal has proved to be reliable, but the battery packs are heavy, and the materials inside are expensive compared with those in lithium-ion packs.
 
Also, most experts think that hybrid cars, such as the Toyota Prius and Ford Escape Hybrid, will need a replacement battery pack after eight years or 100,000 miles.
 
If so, that could hurt the resale value of used hybrids because it would present subsequent owners with a battery replacement bill of between $3,000 and $5,000.
 
Manufacturers in Japan, Europe and the United States are working to replace nickel-metal hydride batteries with lithium ion. The switch could begin in the United States as early as 2008.
 
Earlier this month, Nissan Motor Co. launched the Atlas 20 medium-duty truck in Japan with lithium-ion batteries.
 
Officials at Ford Motor Co., Toyota Motor Corp. and Johnson Controls Inc. say lithium-ion batteries will begin replacing nickel-metal hydride batteries in high volume around 2010. Johnson Controls has a joint venture with French battery maker Saft Groupe SA.
 
"There's less weight, greater power density and, eventually, lower cost" with lithium ion, says Tom Watson, Ford's manager of hybrid propulsion systems. "We think that in the long term when you look at the cost-efficiency curve, lithium ion has much better potential than nickel metal. The benefits that it provides are just too overwhelmingly positive to pass up."
  
 
---------------------------------------------------------------------------------
Lithium-ion batteries
 
ADVANTAGES
 
Lighter than nickel-metal batteries, improving performance and fuel economy
 
Enables plug-in hybrids
 
Production costs should fall over time
 
CHALLENGES
 
Sensitive to temperature
 
Fragile
 
Can be slow to recharge
 
Manufacturing and shipping issues
 
Existing nickel-metal batteries could improve
#20 of 74
Re: Lithium-ion batteries for Hybrids? [toyoinfo] by pathstar1
Jul 06, 2006 (8:38 am)
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Replying to: toyoinfo (Jul 06, 2006 7:56 am)

One more challenge - Lithium-ion batteries don't like to receive or deliver high currents. This is the "show stopper" they are working to fix. Regenerative braking and accelleration assist require high currents into and out of the battery.
#21 of 74
Re: Lithium-ion batteries for Hybrids? [toyoinfo] by john1701a
Jul 06, 2006 (8:49 am)
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Replying to: toyoinfo (Jul 06, 2006 7:56 am)

> Also, most experts think that hybrid cars, such as the Toyota Prius and Ford Escape Hybrid, will need a replacement battery pack after eight years or 100,000 miles.
 
Those so-called experts aren't all that smart or observant... since there are quite a few owners well in excess of 100,000 miles without any need for battery-pack replacement. It doesn't make sense either, since the warranty in some states is for 10 years / 150,000 miles.
 
The latest update from Jesse (a friend of mine with a Classic Prius) is having surpassed 243,000 miles with the original still.
 
JOHN
#22 of 74
Re: Lithium-ion batteries for Hybrids? [john1701a] by gagrice
Jul 06, 2006 (12:24 pm)
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Replying to: john1701a (Jul 06, 2006 8:49 am)

Jesse (a friend of mine with a Classic Prius) is having surpassed 243,000 miles with the original still.
 
That is pretty darn good. Longer than I would have bet on them.
#23 of 74
Re: Lithium-ion batteries for Hybrids? [gagrice] by eaa
Jul 23, 2006 (1:26 pm)
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Replying to: gagrice (Jul 06, 2006 12:24 pm)

NiMH have been run to over 300,000 miles. The new lithium should last as long.
 
The new Tesla pure electric EV that was just released July 20,2006 uses lithium and they say 100,000 miles is expected.
 
These are not your old lead acid 100 year old technology !
#24 of 74
Re: Lithium-ion batteries for Hybrids? [eaa] by idele
Jul 24, 2006 (4:24 am)
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Replying to: eaa (Jul 23, 2006 1:26 pm)

The Tesla car is very interesting but it should be pointed out that the battery pack consists of thousands of off-the-shelf lithium-ion batteries used for portable electronic devices and weighs about 1000 pounds.
#25 of 74
Re: Lithium-ion batteries for Hybrids? [idele] by gagrice
Jul 24, 2006 (7:39 am)
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Replying to: idele (Jul 24, 2006 4:24 am)

Good point. I think some thought this car was a break through on battery technology. No one has a large size Li-ion battery that is safe to use where any heat is involved. From the price of the car it looks like battery pricing is still very high.

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