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OT Chevy Volt
On Sun, 26 Feb 2012 18:19:57 -0500, Stuart Wheaton
wrote: On 2/26/2012 11:53 AM, Gunner Asch wrote: On Sun, 26 Feb 2012 09:29:47 -0500, Stuart wrote: On 2/26/2012 7:18 AM, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? No, there is not. http://www.snopes.com/politics/business/chevyvolt.asp The Snopes rebuttle is fatally flawed. It takes the same amount of time to drive across the country???? Since when the battery is run down it runs on the gas engine, yes, it can go cross country just like any IC vehicle. But the Volt is not designed for x-country use. It is optimised for the large number of Americans who commute a dozen miles or so daily, who can charge it during off peak hours every night, but still offers a back-up plan so you never suffer the inability to go when you need to regardless of the charging time. OH yeah, you can fit it with a Gun rack too. http://www.cbsnews.com/8301-505145_1...ack-in-a-volt/ 68% of Americans commute less than 15 miles one-way to work: http://www.bts.gov/publications/omni...figure_02.html In other words, the vast majority of those who drive to work can cover their trips on electricity only, with an all-electric (Nissan Leaf) or a plug-in hybrid (Chevy Volt). -- Ed Huntress Hardly. Its sadly more of a mish mash than the original article Gunner |
OT Chevy Volt
"Ed Huntress" wrote in message
... On Sun, 26 Feb 2012 17:48:08 -0500, "Stormin Mormon" wrote: 1) If it were feasable, it would already be in the works 2) We reduce dependance on foreign oil with domestic drilling and building more refineries. ANWR, Gulf of Mexico, etc. 3) So, where do you think we get the fuel to make the electricity to power the car? Probably from electric plants that burn foreign oil. d'uh. Christopher A. Young Learn more about Jesus www.lds.org Chris, you are getting downright loony. Roughly 1% of the electricity in the US is generated from oil, whether foreign or domestic: http://www.eia.gov/energyexplained/i..._united_states Man, if you're going to be lazy and ignorant, you should at least learn to keep your mouth shut until you wise up and stop looking like a fool. You've become ridiculous. Not that I have any irresistible urge to defend our resident mormon, but dayum, I don't think too many people knew that oil was just 1% of electricity generation -- less than renewables, according to that site. Dat was quite the eye-opener! Renewables are presumably wind, pv's, and hydro-electric. I'da thought hydro-electric would have been more. T Boone Pickens was trying to corner the market on nat gas, iirc. -- EA -- Ed Huntress |
OT Chevy Volt
On Sun, 26 Feb 2012 18:59:27 -0500, "Existential Angst"
wrote: "Ed Huntress" wrote in message .. . On Sun, 26 Feb 2012 17:48:08 -0500, "Stormin Mormon" wrote: 1) If it were feasable, it would already be in the works 2) We reduce dependance on foreign oil with domestic drilling and building more refineries. ANWR, Gulf of Mexico, etc. 3) So, where do you think we get the fuel to make the electricity to power the car? Probably from electric plants that burn foreign oil. d'uh. Christopher A. Young Learn more about Jesus www.lds.org Chris, you are getting downright loony. Roughly 1% of the electricity in the US is generated from oil, whether foreign or domestic: http://www.eia.gov/energyexplained/i..._united_states Man, if you're going to be lazy and ignorant, you should at least learn to keep your mouth shut until you wise up and stop looking like a fool. You've become ridiculous. Not that I have any irresistible urge to defend our resident mormon, but dayum, I don't think too many people knew that oil was just 1% of electricity generation -- less than renewables, according to that site. Dat was quite the eye-opener! Well, that's a good thing. It took less than 20 seconds to look it up and document it (although I knew the answer before I looked it up, because it's something that interests me and I keep up with it). What grates me is that people will make these accusatory claims WITHOUT EVEN BOTHERING TO CHECK FIRST IF THEY'RE BEING STUPID! I can't understand that. It's willful ignorance, topped by scapegoating and accusing others of malevolence, stupidity, or worse. What makes someone do something so stupid? I'm still shaking my head. Don't get me wrong: I'm not talking about making mistakes or just talking off the top of one's head. We all do that, a lot. The grating part is then taking those unchecked "facts" and accusing someone else of being ignorant or whatever. That's inexcusable. It's almost obscene. Renewables are presumably wind, pv's, and hydro-electric. I'da thought hydro-electric would have been more. Hydro is 6%. All other renewables are 4%. T Boone Pickens was trying to corner the market on nat gas, iirc. I think he was trying to corner the wind, too. d8-) -- Ed Huntress |
OT Chevy Volt
On 2012-02-26, Stormin Mormon wrote:
1) If it were feasable, it would already be in the works 2) We reduce dependance on foreign oil with domestic drilling and building more refineries. ANWR, Gulf of Mexico, etc. 3) So, where do you think we get the fuel to make the electricity to power the car? Probably from electric plants that burn foreign oil. d'uh. Electric plants do not burn "foreign oil". If battery technology was sufficiently good, almost no one would be driving fuel powered cars. All that is needed is improve storage density and to speed up the charging process. i Christopher A. Young Learn more about Jesus www.lds.org . "Karl Townsend" wrote in message ... I'm generally not a fan of government subsidies, but this is an exception. This technology won't get off the ground without it. If we wait till fuel is $10 a gal to start, it will be too late. The Volt needs more work before its ready. With just a bit more work, there should be a commuter car that will take you on short trips twice a day. That's a great potential to reduce our dependence on foreign oil. Karl |
OT Chevy Volt
On Feb 26, 2:21*pm, "Steve W." wrote:
Karl Townsend wrote: On Sun, 26 Feb 2012 08:07:22 -0800, "Bruce L. Bergman (munged human readable)" wrote: On Sun, 26 Feb 2012 19:18:48 +0700, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? http://www.snopes.com/politics/business/chevyvolt.asp No, not hardly. *It's not as economically efficient as a regular car when you figure in the added purchase price, but only by a little. It's the huge government subsidies that aren't figured into the operating costs that make it a stupid move. I'm generally not a fan of government subsidies, but this is an exception. This technology won't get off the ground without it. If we wait till fuel is $10 a gal to start, it will be too late. The Volt needs more work before its ready. With just a bit more work, there should be a commuter car that will take you on short trips twice a day. That's a great potential to reduce our dependence on foreign oil. Karl Why is it that even though this technology has been around LONGER than gas engines and almost as long as cars have even been available that "Electrics need just a bit more work"???? And that everyone should have to pay for this work? * How about the fact that they are NOT a practical vehicle for more than a VERY small segment of the population who in all likelihood don't even own a car now and that for the few people who actually want them now are buying NOT for any real reason other than "SEE WHAT I DO FOR THE ENVIRONMENT", Ever notice what these folks usually do with these cars? Take look at the ones who buy them, they take them out for special events and demonstrations but the rest of the time they drive the good old reliable gas burner. A "commuter car for short trips" Just going back and forth to work for many is a 30 or more mile one way drive. What do you use while the electric car is charging? How about when a big storm hits and knocks out all the power for miles around? How do you charge up then? "The technology just isn't there yet" Seems to be the constant cry of the folks who think that Solar/Wind/electric/hybrid items are the best way to go. Amazing when you look at how much money has been put into all of them over the years and how many outright failures there have been. You would think that after 100 plus years of research and money they would have things up and running without needing *to steal money from other people to keep going. Same thing with passenger rail. The current mantra is to build MORE high speed rail, this in areas where passenger rail was removed over the past 30-40 years because it wasn't used enough to keep it operating. Sounds just like the thing to do.. How about these companies go to the public and ask for the money instead of grants through the government. If the products look to be truly viable they will get funding. If they are a joke then they don't. -- Steve W.- Hide quoted text - - Show quoted text - Another conservative who should think before he rants. The problem with electric versus gas is energy density. And FWIW...an electric would work great for most Americans...because of the short trips they make. Now go do your homework and come back later to say thank you to a liberal who showed you The Way. TMT |
OT Chevy Volt
On Feb 26, 2:39*pm, Larry Jaques
wrote: On Sun, 26 Feb 2012 08:07:22 -0800, "Bruce L. Bergman (munged human readable)" wrote: On Sun, 26 Feb 2012 19:18:48 +0700, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? http://www.snopes.com/politics/business/chevyvolt.asp No, not hardly. *It's not as economically efficient as a regular car when you figure in the added purchase price, but only by a little. It's the huge government subsidies that aren't figured into the operating costs that make it a stupid move. Has GM paid back all of the $13.4B they got in the bailout yet? the last figure I saw was $8.1B repaid by April of 2010.http://en.wikipedia.org/wiki/Trouble...Relief_Program Or are you referring to another subsidy? *I'm not nearly as critical of the TARP program now that much of it has been paid back. ------------------------ Cost to operate a Chevy Volt I can't believe they're trying to get $46k (merely -double- the cost of a Prius) for those things. *http://tinyurl.com/7evjd2c For $20k less, I'd go for a Toyota Camry Hybrid and be extremely happy. $25.9-27.4k. $2k upgrade from Prius to Camry? No brainer. Eric Bolling (Fox Business Channel's Follow the Money) test drove the Chevy Volt at the invitation of General Motors. Makes one wonder how much they paid him for the article. According to General Motors, the Volt battery hold 16 kwh of electricity. It takes a full 10 hours to charge a drained battery. The cost for the electricity to charge the Volt is never mentioned so I looked up what I pay for electricity. I pay approximately (it varies with amount used and the seasons) $1.16 per kwh. 16 kwh x $1.16 per kwh = $18.56 to charge the battery. That's the big whopper in the piece, I even balked at that one before even seeing the Snopes link - they have their energy priced 10X too high, and probably on purpose to make it sound worse. What are those, Gnu Yawk City prices? *sigh Depending on the region and the transportation costs part of the power price of course, it's more like $0.10 to $0.12 a KWH range from a fossil-fuel fired plant, not $1.10 to $1.20. Yup. --snip-- But that's what the Rural Electrification Administration is for, to subsidize those costs. *Otherwise great swaths of the Midwest and Rockies would still be lighting their houses with Kerosene lanterns. Now called the RUS, or Rural Utilities Service.http://en.wikipedia.org/wiki/Rural_E...Administration -- Courage and perseverance have a magical talisman, before which difficulties disappear and obstacles vanish into air. * * * * * * * * * * * * * * * * * * * -- John Quincy Adams- Hide quoted text - - Show quoted text - Hey those GM workers are getting $7000 bonus checks. And they are going to not vote for Romney. TMT |
OT Chevy Volt
On Feb 26, 4:59*pm, a friend
wrote: On 2/26/2012 12:21 PM, Steve W. wrote: Karl Townsend wrote: On Sun, 26 Feb 2012 08:07:22 -0800, "Bruce L. Bergman (munged human readable)" wrote: On Sun, 26 Feb 2012 19:18:48 +0700, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? http://www.snopes.com/politics/business/chevyvolt.asp No, not hardly. It's not as economically efficient as a regular car when you figure in the added purchase price, but only by a little. It's the huge government subsidies that aren't figured into the operating costs that make it a stupid move. I'm generally not a fan of government subsidies, but this is an exception. This technology won't get off the ground without it. If we wait till fuel is $10 a gal to start, it will be too late. The Volt needs more work before its ready. With just a bit more work, there should be a commuter car that will take you on short trips twice a day. That's a great potential to reduce our dependence on foreign oil. Karl Why is it that even though this technology has been around LONGER than gas engines and almost as long as cars have even been available that "Electrics need just a bit more work"???? And that everyone should have to pay for this work? How about the fact that they are NOT a practical vehicle for more than a VERY small segment of the population who in all likelihood don't even own a car now and that for the few people who actually want them now are buying NOT for any real reason other than "SEE WHAT I DO FOR THE ENVIRONMENT", Ever notice what these folks usually do with these cars? Take look at the ones who buy them, they take them out for special events and demonstrations but the rest of the time they drive the good old reliable gas burner. A "commuter car for short trips" Just going back and forth to work for many is a 30 or more mile one way drive. What do you use while the electric car is charging? How about when a big storm hits and knocks out all the power for miles around? How do you charge up then? "The technology just isn't there yet" Seems to be the constant cry of the folks who think that Solar/Wind/electric/hybrid items are the best way to go. Amazing when you look at how much money has been put into all of them over the years and how many outright failures there have been. You would think that after 100 plus years of research and money they would have things up and running without needing to steal money from other people to keep going. Same thing with passenger rail. The current mantra is to build MORE high speed rail, this in areas where passenger rail was removed over the past 30-40 years because it wasn't used enough to keep it operating. Sounds just like the thing to do.. How about these companies go to the public and ask for the money instead of grants through the government. If the products look to be truly viable they will get funding. If they are a joke then they don't. perhaps you have never been to Europe or Asia where they actually have had subsidized transit for decades, and they have mass transit and electric cars and they work. *It is only because our government has, through the complicity of fools like the above poster, subsidized the automotive industry and systematically destroyed passenger rail in many locations that we have the absolute mess we are in now. *Places like Boston and Wash DC have trains that actually carry people around and these people don't use cars - places like Los Angeles used to have a great network of trains (many electric) and buses, but they were shut down and the right-of-ways purchased to prevent their being reinstated so that the population would buy cars, and then we subsidize public roads to the tune of billions per year. Your data about electric cars is just plain wrong, and you know it. *The turn of the century electric car, with lead acid batteries is not the same technology. *You are among those who wish to destroy the nation by crippling us with pollution, paralyzingly high energy prices, and a population of uneducated drones fit only to flip burgers and sew shoes for off-shore companies. *Why people like you want this future is beyond me, perhaps you can explain it to us all. -- For a $5 dollar donation today you get credit for $10 with HIM- Hide quoted text - - Show quoted text - Jealousy. Conservative never want anyone to better themselves beyond the failures they have become. TMT |
OT Chevy Volt
On Feb 26, 5:03*pm, a friend
wrote: On 2/26/2012 2:48 PM, Stormin Mormon wrote: 1) If it were feasable, it would already be in the works 2) We reduce dependance on foreign oil with domestic drilling and building more refineries. ANWR, Gulf of Mexico, etc. 3) So, where do you think we get the fuel to make the electricity to power the car? Probably from electric plants that *burn foreign oil. d'uh. Christopher A. Young Learn more about Jesus * *www.lds.org have you actually lost the ability to use that wonderful brain that god gave all of us? *did you even read your words? *"If it were feasible it would already be in the works" - in 1950, was your laptop "in the works"??? it was feasible, its existence proves its feasible, but it wasn't known until the technology matured. if you drill domestically we will just ship our oil overseas - are you actually unaware that today the US is a net exporter of gasoline? Fuel to make electricity for domestic electric cars comes predominantly from domestically produced natural gas. Get your facts straight before you make wild claims. -- For a $5 dollar donation today you get credit for $10 with HIM It was announced recently that the oil companies are EXPORTING AMERICAN OIL because they can make more money on it. TMT |
OT Chevy Volt
On Feb 26, 5:16*pm, "Artemus" wrote:
"Jim Wilkins" wrote in message ... .... Much more significant is the cost of the battery divided by its capacity times cycle life, to give dollars per KWH. With lead-acids, solar power doesn't break even for me if the panels are free. jsw That is a major factor that the mfgrs, media, politicians, and greenie weenies seem to be ignoring. According tohttp://www.gavinshoebridge.com/electric-car-conversion/electric-car-b... Avg battery lifespan in electric vehicle applications * Normal Car Starting Batteries: 3-12 months * Marine Batteries: 1-6 years * Golf Cart Batteries: 2-7 years * AGM Deep Cycle: 4-7 years * Gelled Deep Cycle: 2-5 years * Ni-Cad Batteries: 1-20 years * Ni-MH Batteries: 2-10 years * LiFePO4 Batteries: 6-10 years Nissan's cost for their Leaf elec car battery is $15,600 and this is not expected to come down.http://online.wsj.com/article/SB1000...57553624293452... So people like me who keep their cars for longer than this (I've had my Toyota PU for 28 years and the Ford Explorer for 19) would have this major replacement cost to look forward to again and again. Art Ever hear of costs dropping as sales go up? The computer you are using is an example of it. TMT |
OT Chevy Volt
On Feb 26, 5:19*pm, Stuart Wheaton wrote:
On 2/26/2012 11:53 AM, Gunner Asch wrote: On Sun, 26 Feb 2012 09:29:47 -0500, Stuart wrote: On 2/26/2012 7:18 AM, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? No, there is not. http://www.snopes.com/politics/business/chevyvolt.asp The Snopes rebuttle is fatally flawed. *It takes the same amount of time to drive across the country???? Since when the battery is run down it runs on the gas engine, yes, it can go cross country just like any IC vehicle. But the Volt is not designed for x-country use. *It is optimised for the large number of Americans who commute a dozen miles or so daily, who can charge it during off peak hours every night, but still offers a back-up plan so you never suffer the inability to go when you need to regardless of the charging time. OH yeah, you can fit it with a Gun rack too.http://www.cbsnews.com/8301-505145_1...-can-put-a-gun... Hardly. Its sadly more of a mish mash than the original article Gunner- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - The real problem can you fit a conservative in it? Those Republican boys and girls are WIDE LOADS. TMT |
OT Chevy Volt
"Stormin Mormon" wrote in message .. . Easier just to drive a Honda automobile. Christopher A. Young . "Larry Jaques" wrote I wonder how far a quiet li'l Honda EU generator would take an EV. The Hondas run 8+ hours per tank of gas. Pop that puppy in the trunk, route the exhaust out the bottom/back, and drive nonstop to Vegas from anywhere! (Well, not from Australia.) To put this in numerical perspective, a 3KW generator needs a 5HP engine. Ever drive a 40HP Volkswagen on long trips? I had a 1978 Accord with 68 HP (51KW) http://www.mpgomatic.com/2007/10/16/...age-1978-2007/ It really would give the mileage shown on the graph. I averaged 36 to 38 locally and up to 44 on a trip from NH to Georgia. I was satisfied with its horsepower but it wouldn't sell now. jsw |
OT Chevy Volt
On Feb 26, 5:42*pm, Ed Huntress wrote:
On Sun, 26 Feb 2012 18:19:57 -0500, Stuart Wheaton wrote: On 2/26/2012 11:53 AM, Gunner Asch wrote: On Sun, 26 Feb 2012 09:29:47 -0500, Stuart wrote: On 2/26/2012 7:18 AM, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? No, there is not. http://www.snopes.com/politics/business/chevyvolt.asp The Snopes rebuttle is fatally flawed. *It takes the same amount of time to drive across the country???? Since when the battery is run down it runs on the gas engine, yes, it can go cross country just like any IC vehicle. But the Volt is not designed for x-country use. *It is optimised for the large number of Americans who commute a dozen miles or so daily, who can charge it during off peak hours every night, but still offers a back-up plan so you never suffer the inability to go when you need to regardless of the charging time. OH yeah, you can fit it with a Gun rack too. http://www.cbsnews.com/8301-505145_1...-can-put-a-gun... 68% of Americans commute less than 15 miles one-way to work: http://www.bts.gov/publications/omni...ue_04/html/fig... In other words, the vast majority of those who drive to work can cover their trips on electricity only, with an all-electric (Nissan Leaf) or a plug-in hybrid (Chevy Volt). -- Ed Huntress Hardly. Its sadly more of a mish mash than the original article Gunner- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - And will...and without a drop of gasoline. That is what keeps oil CEOs up at night. TMT |
OT Chevy Volt
On Sun, 26 Feb 2012 18:19:57 -0500, Stuart Wheaton
wrote: On 2/26/2012 11:53 AM, Gunner Asch wrote: On Sun, 26 Feb 2012 09:29:47 -0500, Stuart wrote: On 2/26/2012 7:18 AM, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? No, there is not. http://www.snopes.com/politics/business/chevyvolt.asp The Snopes rebuttle is fatally flawed. It takes the same amount of time to drive across the country???? Since when the battery is run down it runs on the gas engine, yes, it can go cross country just like any IC vehicle. But the Volt is not designed for x-country use. It is optimised for the large number of Americans who commute a dozen miles or so daily, who can charge it during off peak hours every night, but still offers a back-up plan so you never suffer the inability to go when you need to regardless of the charging time. So then you agree with the original statement and have found the Snopes to be a mish mash. Thanks for your agreement. OH yeah, you can fit it with a Gun rack too. http://www.cbsnews.com/8301-505145_1...ack-in-a-volt/ ""Seriously, when was the last time you saw a gun rack in ANY sedan?" He adds that the Volt "can do a lot of things, but if you are looking for a vehicle for your next hunting trip, it may not be your first choice. " Ive had gun racks in each and every vehicle Ive ever owned. Including the last 3 Volvos. Hunting trips? Are gun racks only for hunting trips? Odd that. I often carry a combat shotgun in my racks. Hardly a hunting weapon. Gunner Hardly. Its sadly more of a mish mash than the original article Gunner -- One could not be a successful Leftwinger without realizing that, in contrast to the popular conception supported by newspapers and mothers of Leftwingers, a goodly number of Leftwingers are not only narrow-minded and dull, but also just stupid. Gunner Asch |
OT Chevy Volt
On Feb 26, 10:20*pm, Gunner Asch wrote:
On Sun, 26 Feb 2012 18:19:57 -0500, Stuart Wheaton wrote: On 2/26/2012 11:53 AM, Gunner Asch wrote: On Sun, 26 Feb 2012 09:29:47 -0500, Stuart wrote: On 2/26/2012 7:18 AM, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? No, there is not. http://www.snopes.com/politics/business/chevyvolt.asp The Snopes rebuttle is fatally flawed. *It takes the same amount of time to drive across the country???? Since when the battery is run down it runs on the gas engine, yes, it can go cross country just like any IC vehicle. But the Volt is not designed for x-country use. *It is optimised for the large number of Americans who commute a dozen miles or so daily, who can charge it during off peak hours every night, but still offers a back-up plan so you never suffer the inability to go when you need to regardless of the charging time. So then *you agree with the original statement and have found the Snopes to be a mish mash. Thanks for your agreement. OH yeah, you can fit it with a Gun rack too. http://www.cbsnews.com/8301-505145_1...-can-put-a-gun... ""Seriously, when was the last time you saw a gun rack in ANY sedan?" He adds that the Volt "can do a lot of things, but if you are looking for a vehicle for your next hunting trip, it may not be your first choice. " Ive had gun racks in each and every vehicle Ive ever owned. Including the last 3 Volvos. Hunting trips? *Are gun racks only for hunting trips? Odd that. I often carry a combat shotgun in my racks. Hardly a hunting weapon. Gunner Hardly. Its sadly more of a mish mash than the original article Gunner And GummyBear proves that at last, he has lost what little was left of his decrepit mind. |
OT Chevy Volt
On Sun, 26 Feb 2012 14:59:49 -0800, a friend
wrote: perhaps you have never been to Europe or Asia where they actually have had subsidized transit for decades, and they have mass transit and electric cars and they work. It is only because our government has, through the complicity of fools like the above poster, subsidized the automotive industry and systematically destroyed passenger rail in many locations that we have the absolute mess we are in now. So we have no light rail in urban areas here in the US? Or do you consider commuter trains to be cost effective west of the Mississippi River? Say...Lander Wyoming to humm...Portland Or? The Greens want California to spend 250 BILLION dollars for a high speed rail between Bakersfield and Corcorun. Bakersfield is the county seat for a county with 800,000 people and Corcorun has the prison where Charlie Manson is incarcerated. Sweet eh? -- One could not be a successful Leftwinger without realizing that, in contrast to the popular conception supported by newspapers and mothers of Leftwingers, a goodly number of Leftwingers are not only narrow-minded and dull, but also just stupid. Gunner Asch |
OT Chevy Volt
On Sun, 26 Feb 2012 18:38:04 +0000 (UTC), Doug Miller
wrote: John B. wrote in : I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? [...] The cost for the electricity to charge the Volt is never mentioned so I looked up what I pay for electricity. I pay approximately (it varies with amount used and the seasons) $1.16 per kwh. No way in the world that's true. You live in a very small world dont you Doug? Its not all TVA power across America Gunner -- One could not be a successful Leftwinger without realizing that, in contrast to the popular conception supported by newspapers and mothers of Leftwingers, a goodly number of Leftwingers are not only narrow-minded and dull, but also just stupid. Gunner Asch |
OT Chevy Volt
John B. wrote:
I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? Yup, it is all true, as far as I can tell. A number of people have tried to parse the limited details GM has released. As best as they can figure, the car gets 26 MPG on the gas engine, which is pretty pitiful. Instead of creating a gas engine that could run a generator at some optimum speed and load at peak efficiency, they just put in a standard car engine that is WAYY too big for this purpose. It only needs to provide about 12 - 15 HP to keep up with the demands of level highway load. But, it is not a true hybrid. It is either a battery-electric car or a gasoline car with electric transmission, once the battery is depleted. I don't understand the logic on that. I drive a Honda Civic hybrid, that makes (nearly) best use of both functions all the time. It has a very weak gas engine that tries to stay in Atkinson cycle as much as possible, and a battery-motor drive for acceleration. I get 47 - 56 MPG depending on who drives it and the weather conditions. When GM cites the economy in equivalent MPG, they always assume electricity is free - that's fraud right there! Now, electricity is MUCH cheaper most places than gasoline, but it isn't free. Depending on the driver, the road conditions, etc. the 25 miles on battery is a little worse than others have gotten, but not way out of line. If the Volt is not a scam, it comes pretty close! It might make a great test bed for somebody that wants to experiment with hacking one of these up to extend range with huge batteries and rip out the klunker gas engine. These might come up cheap on the market after owners find out it doesn't work like they expected. Jon |
OT Chevy Volt
On Sun, 26 Feb 2012 20:50:13 -0500, "Jim Wilkins"
wrote: "Stormin Mormon" wrote in message . .. Easier just to drive a Honda automobile. Christopher A. Young . "Larry Jaques" wrote I wonder how far a quiet li'l Honda EU generator would take an EV. The Hondas run 8+ hours per tank of gas. Pop that puppy in the trunk, route the exhaust out the bottom/back, and drive nonstop to Vegas from anywhere! (Well, not from Australia.) To put this in numerical perspective, a 3KW generator needs a 5HP I seem to have missed that 3KV figure/requirement, but Honda does make a 3000EU... engine. Ever drive a 40HP Volkswagen on long trips? I have been in VW bugs half a dozen times in my life, never for more than ten minutes. I took a trip across the Oakland(?) Bay Bridge in 1968 in a VW ban when there were 40mph gusts at 90 degrees to us. We were anywhere from 30-45 degrees tilted the whole trip across. It scared the absolute crap out of me. I have never been in another VW van since then and don't intend to. Oh, I was hit by a low flying VW bug in '90 or so. It gave me a nastyass whiplash, dented my nose and forehead (even with the seatbelt on) and I've never forgiven the damned things or the people who drive VWs. They're just OFF. Feh! So, no. I've never been in any VW for a long trip. But the gearing and torque are totally different in an EV. I had a 1978 Accord with 68 HP (51KW) http://www.mpgomatic.com/2007/10/16/...age-1978-2007/ It really would give the mileage shown on the graph. I averaged 36 to 38 locally and up to 44 on a trip from NH to Georgia. I was satisfied with its horsepower but it wouldn't sell now. Accords have always been spirited little beauts. Nice cars, Honda. I wouldn't buy a used one, though. Once they start on the downhill slide, they go like a rockslide. -- Courage and perseverance have a magical talisman, before which difficulties disappear and obstacles vanish into air. -- John Quincy Adams |
OT Chevy Volt
Larry Jaques wrote:
I wonder how far a quiet li'l Honda EU generator would take an EV. The Hondas run 8+ hours per tank of gas. Pop that puppy in the trunk, route the exhaust out the bottom/back, and drive nonstop to Vegas from anywhere! (Well, not from Australia.) Won't quite work. The typical US passenger car (presumably a smaller model) takes somewhere between 12 - 15 Hp to propel it at highway speed. Wind resistance goes up at the cube of speed, so slowing down even a little helps a lot. Our university did an extended-range hybrid some years ago with an 18-HP v-twin B&S lawnmower engine. The team leader installed electronic fuel injection on the engine to clean it up and reduce fuel consumption. The car was a donated Ford Taurus station wagon with manual transmission. After trying to figure out how to make a parallel hybrid for a while, they gave up and made it a serial hybrid, with the engine electrically coupled to the battery bus. The rules required 40 mile range on electric only, and able to run 40 MPH, I think, on the gas engine. I would have liked to get more test data on it, but they did achieve those requirements. So, a little gas generator in the 2 - 3 KW class won't do it. Somewhere around 15 KW is going to be needed for continuous highway driving, assuming some losses here and there. Of course, Honda with the Civic and Insight hybrids and Toyota with the Prius and clones have a BUNCH of tricks to help out. The use 0W5 oil for low engine losses, low rolling resistance tires, plastic panels under the entire car to cut wind drag on the underside, and so on. The original 2-seat Insight got GREAT gas mileage with a 950 CC 3-cyl engine. I saw one on eBay that had a lifetime average of 87 MPG over 113K miles. They just photographed the dashboard display. So, IT CAN be done! Jon |
OT Chevy Volt
Artemus wrote:
Avg battery lifespan in electric vehicle applications Normal Car Starting Batteries: 3-12 months Marine Batteries: 1-6 years Golf Cart Batteries: 2-7 years AGM Deep Cycle: 4-7 years Gelled Deep Cycle: 2-5 years Ni-Cad Batteries: 1-20 years Ni-MH Batteries: 2-10 years LiFePO4 Batteries: 6-10 years Nissan's cost for their Leaf elec car battery is $15,600 and this is not expected to come down. There is a cottage industry springing up with guys selling battery rebuilding services and also the parts and instructions to rebuild your OWN hybrid batteries for WAYY less than the factory rebuilds. In many cases you can fix a seriously bad battery by replacing 2 to 5 cells for about $100 - 150. So, when the extended battery warranty runs out, there are options besides a VERY expensive total replacement. Jon |
OT Chevy Volt
Stuart Wheaton wrote:
On 2/26/2012 7:18 AM, John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? No, there is not. http://www.snopes.com/politics/business/chevyvolt.asp First, you DON'T have to stop and charge the thing via electricity before getting going again. You fill the gas tank and go. So, that part WAS false. The electric rates cited were really bogus for anyplace in the continental US. Maybe if you are on an island with only Diesel- generated power from barged-in fuel, maybe. So, those cost calcs were bogus. But, MUCH of the rest of that article WAS true. Even the snopes rebuttal says basically you are NOT SUPPOSED to drive it long distances. Well, you can, but it just isn't efficient that way. The electric range is about what others have reported from test drives. Jon |
OT Chevy Volt
Karl Townsend wrote:
The Volt needs more work before its ready. With just a bit more work, there should be a commuter car that will take you on short trips twice a day. That's a great potential to reduce our dependence on foreign oil. Right, they need a MUCH smaller, lighter engine that is optimized for peak efficiency, not jack rabbit starts. Then, they need to turn it into a full, cooperative hybrid, so the engine runs when needed to maintain the battery charge, and the battery can be used for acceleration. In the meantime, I drive a Honda Civic Hybrid. It uses gas all the time, but I get 47 - 56 MPG in mixed driving every day. If everybody already had these, we could cut our gas consumption in half! Jon |
OT Chevy Volt
On Sun, 26 Feb 2012 22:37:07 -0600, Jon Elson
wrote: Larry Jaques wrote: I wonder how far a quiet li'l Honda EU generator would take an EV. The Hondas run 8+ hours per tank of gas. Pop that puppy in the trunk, route the exhaust out the bottom/back, and drive nonstop to Vegas from anywhere! (Well, not from Australia.) Won't quite work. The typical US passenger car (presumably a smaller model) takes somewhere between 12 - 15 Hp to propel it at highway speed. Wind resistance goes up at the cube of speed, Ah, I believe that's the square of speed, Jon: D = Cd pV^2A/2 (Drag equals coefficient of drag times gas density times velocity squared times frontal area over two) Where the cube factor comes into play is in the *power* required as velocity increases. This is because you're moving farther in a given amount of time, which requires more work in that amount of time. So the drag is the relative velocities squared, and you multiply that result by the relative rate of doing work, and you wind up with a cube relationship. I'm never very good at explaining these things. I hope that gets through the static. An example: Neglecting other forms of drag, if a car requires 10 hp at 40 mph, it will require 80 hp at 80 mph. -- Ed Huntress slowing down even a little helps a lot. Our university did an extended-range hybrid some years ago with an 18-HP v-twin B&S lawnmower engine. The team leader installed electronic fuel injection on the engine to clean it up and reduce fuel consumption. The car was a donated Ford Taurus station wagon with manual transmission. After trying to figure out how to make a parallel hybrid for a while, they gave up and made it a serial hybrid, with the engine electrically coupled to the battery bus. The rules required 40 mile range on electric only, and able to run 40 MPH, I think, on the gas engine. I would have liked to get more test data on it, but they did achieve those requirements. So, a little gas generator in the 2 - 3 KW class won't do it. Somewhere around 15 KW is going to be needed for continuous highway driving, assuming some losses here and there. Of course, Honda with the Civic and Insight hybrids and Toyota with the Prius and clones have a BUNCH of tricks to help out. The use 0W5 oil for low engine losses, low rolling resistance tires, plastic panels under the entire car to cut wind drag on the underside, and so on. The original 2-seat Insight got GREAT gas mileage with a 950 CC 3-cyl engine. I saw one on eBay that had a lifetime average of 87 MPG over 113K miles. They just photographed the dashboard display. So, IT CAN be done! Jon |
OT Chevy Volt
On Sun, 26 Feb 2012 22:24:46 -0600, Jon Elson
wrote: John B. wrote: I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? Yup, it is all true, as far as I can tell. A number of people have tried to parse the limited details GM has released. As best as they can figure, the car gets 26 MPG on the gas engine, which is pretty pitiful. Instead of creating a gas engine that could run a generator at some optimum speed and load at peak efficiency, they just put in a standard car engine that is WAYY too big for this purpose. It only needs to provide about 12 - 15 HP to keep up with the demands of level highway load. But, it is not a true Yeah, that would be the ideal fix. That smaller engine would likely be much quieter and lighter, too. But is the air conditioning system the reason for the larger, auto-style engine? hybrid. It is either a battery-electric car or a gasoline car with electric transmission, once the battery is depleted. I don't understand the logic on that. I drive a Honda Civic hybrid, that makes (nearly) best use of both functions all the time. It has a very weak gas engine that tries to stay in Atkinson cycle as much as possible, and a battery-motor drive for acceleration. I get 47 - 56 MPG depending on who drives it and the weather conditions. The Camry hybrid gets 43/39 and they're extremely nice cars to begin with. Toyota has two winners in its midst. They're just $2-3k more than the basic cardboard Prius (the car most enjoyed by ascetics.) -- Courage and perseverance have a magical talisman, before which difficulties disappear and obstacles vanish into air. -- John Quincy Adams |
OT Chevy Volt
On Sun, 26 Feb 2012 22:52:07 -0600, Jon Elson
wrote: Karl Townsend wrote: The Volt needs more work before its ready. With just a bit more work, there should be a commuter car that will take you on short trips twice a day. That's a great potential to reduce our dependence on foreign oil. Right, they need a MUCH smaller, lighter engine that is optimized for peak efficiency, not jack rabbit starts. Jon, I think you misunderstand the configuration of the Chevy Volt. It is a serial hybrid, not a parallel hybrid like your Civic. It doesn't matter how large or small the engine is in the Volt. It won't accelerate any faster, except perhaps with a nearly-dead battery, because the engine has no mechanical connection to the wheels -- again, unlike your parallel-hybrid Civic (or Prius, or whatever). The Volt runs on the electric motor only. The engine just charges the battery. That's how a serial hybrid works. Serial hybrids are theoretically more efficient for the plug-in hybrid configuration. Parallel hybrids are the way to go when the battery is just a booster and a sort of fill-in for the mechanically connected gas engine, as on your Civic. The two cars are based on essentially different power/driveline concepts. Parellel hybrids shine in stop-and-go city traffic. On the highway, the battery and electric motor are mostly dead weight, although you get a compensating benefit (more than compensating, in the better parallel-hybrid examples) by using a smaller gas engine than you would have without the battery boost for acceleration and hill climbing. Also, the pseudo-Atkinson cycle engine used in the Prius, and maybe in your Civic, is slightly more efficient than a conventional Otto-cycle engine. An Atkinson-cycle engine is too unresponsive to use in a car without the electric motor to step in when you step on the gas and expect things to happen right now. Serial hybrids shine when you have a fair percentage of short trips -- under 30 miles or so in the case of the Volt -- and you don't need to switch the gas engine on at all. As I pointed out in an earlier message, the sruveys show that 68% percent of the commuters in the US travel less than 30 miles round-trip each day. These serial hybrids are the future for plug-in configurations. Parallel hybrids are an interim step that makes sense now for many people as long as battery costs are so high. Eventually, they'll be replaced with serial hybrids when everyone starts demanding the plug-in capabililty. To make a parallel-hybrid a plug-in, you need the same large battery capacity as the Volt, and you're then dragging around a lot of driveline components that you don't really need once you have all-electric, plug-in capability. They're two different ideas. The Prius/Civic is a waystop on the way to plug-ins. The Volt is a little bit ahead of its time, because batteries still cost too much and the range probably needs to be 50 miles to reach the needs of a larger segment of the driving public. But the Volt is where we're headed, and every car manufacturer knows it. Then, they need to turn it into a full, cooperative hybrid, so the engine runs when needed to maintain the battery charge, and the battery can be used for acceleration. See above. -- Ed Huntress In the meantime, I drive a Honda Civic Hybrid. It uses gas all the time, but I get 47 - 56 MPG in mixed driving every day. If everybody already had these, we could cut our gas consumption in half! Jon |
OT Chevy Volt
Gunner Asch wrote in
: On Sun, 26 Feb 2012 18:38:04 +0000 (UTC), Doug Miller wrote: John B. wrote in m: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? [...] The cost for the electricity to charge the Volt is never mentioned so I looked up what I pay for electricity. I pay approximately (it varies with amount used and the seasons) $1.16 per kwh. No way in the world that's true. You live in a very small world dont you Doug? Its not all TVA power across America You really don't know much at all, do you? NOBODY in America pays anywhere NEAR that for electricity. |
OT Chevy Volt
"Larry Jaques" wrote in message ... On Sun, 26 Feb 2012 20:50:13 -0500, "Jim Wilkins" wrote: To put this in numerical perspective, a 3KW generator needs a 5HP I seem to have missed that 3KV figure/requirement, but Honda does make a 3000EU... 3KW is not a requirement, it shows how completely inadequate a portable generator is for the task. Logical analysis isn't one of your strong points, is it? jsw |
OT Chevy Volt
On Mon, 27 Feb 2012 07:44:39 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Sun, 26 Feb 2012 20:50:13 -0500, "Jim Wilkins" wrote: To put this in numerical perspective, a 3KW generator needs a 5HP I seem to have missed that 3KV figure/requirement, but Honda does make a 3000EU... 3KW is not a requirement, it shows how completely inadequate a portable generator is for the task. I don't have the figures for the vehicle in front of me. shrug Logical analysis isn't one of your strong points, is it? KMA,H. -- Courage and perseverance have a magical talisman, before which difficulties disappear and obstacles vanish into air. -- John Quincy Adams |
OT Chevy Volt
On Mon, 27 Feb 2012 12:54:04 -0500, Ed Huntress
wrote: That's in addition to making ridiculous claims about how the car would be used: Why would anyone keep charging the batteries every 270 miles if he was on a long trip? He'd just keep filling with gas. Well, yeah, the idea behind the car design is that you'd use electricity for daily commuting, shopping at the local mall etc, but if you needed to go on a long trip (or if you failed to charge) you'd be able to use the same car, but in gasoline mode, so you can fill up in 3.5 minutes including pee break. Makes perfect sense, since most of us drive most of our miles/klicks in a fairly small radius, but want the ability to go further occasionally (and we also worry about running out of charge). At a higher level, there is a big issue with renewable energy in that storage (for when the wind isn't blowing or the sun isn't shining on the panels) is expensive. One could imagine, say, 100,000,000 cars plugged into the grid, and allowed to feed back, say, 20% of their charge into the grid overnight (the owner would be paid back for that energy and that service). Then, during the day, the cars could charge, say with solar, and the owner would be billed for the net. |
OT Chevy Volt
On Mon, 27 Feb 2012 11:00:42 -0800, Gunner Asch
wrote: On Mon, 27 Feb 2012 16:20:36 +0000 (UTC), (Edward A. Falk) wrote: In article , John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? Some, but not a lot. http://green.autoblog.com/2012/02/24...ifiably-false/ http://gmauthority.com/blog/2012/02/...sive-to-drive/ Just google for "chevy volt email" for more links. One issue is that the volt is meant as a short-haul commuter. You use it as an electric car for 99% of your regular commuting, and then the gas motor kicks in for long trips. The author of the anti-Volt email deliberately chose a usage pattern that shows the Volt at its worst. But its still a valid usage pattern, correct? When compared to standard automobiles. No. No one would drive 270 miles, then stop and recharge the battery, and count the recharge time as "trip time." Conversely, if you charged the battery before your trip, no one but a moron would count that charge time as "trip time." The whole thing is baloney. If you had to go more than 270 miles you would simply re-fill the gas tank. Battery charging time doesn't enter into it. -- Ed Huntress If one were talking about bumper cars..then perhaps it wouldnt be. Correct? Gunner |
OT Chevy Volt
On Mon, 27 Feb 2012 14:01:38 -0500, Spehro Pefhany
wrote: On Mon, 27 Feb 2012 12:54:04 -0500, Ed Huntress wrote: That's in addition to making ridiculous claims about how the car would be used: Why would anyone keep charging the batteries every 270 miles if he was on a long trip? He'd just keep filling with gas. Well, yeah, the idea behind the car design is that you'd use electricity for daily commuting, shopping at the local mall etc, but if you needed to go on a long trip (or if you failed to charge) you'd be able to use the same car, but in gasoline mode, so you can fill up in 3.5 minutes including pee break. Yeah. The viability of all of the electric-only and plug-in hybrid cars is based on certain patterns of use. For the all-electic, it's nothing but short hauls. At their present state of development, the plug-ins are based on a large portion of short hauls. As it has been for 100 years, the limitiation of any of the electric configurations that run at least part of the time on electricity only is the batteries. The Volt, as I said, may be a bit ahead of its time. But the configuration and the expected use patterns are perfectly viable. They're just not *yet* cost-effective, for all but a limited number of drivers. Makes perfect sense, since most of us drive most of our miles/klicks in a fairly small radius, but want the ability to go further occasionally (and we also worry about running out of charge). At a higher level, there is a big issue with renewable energy in that storage (for when the wind isn't blowing or the sun isn't shining on the panels) is expensive. One could imagine, say, 100,000,000 cars plugged into the grid, and allowed to feed back, say, 20% of their charge into the grid overnight (the owner would be paid back for that energy and that service). Then, during the day, the cars could charge, say with solar, and the owner would be billed for the net. Those ideas are over my head. I read a paper or an article on using cars as storage for the grid, but there are so many variables that I haven't attempted to evaluate it. -- Ed Huntress |
OT Chevy Volt
On Feb 27, 2:00*pm, Gunner Asch wrote:
On Mon, 27 Feb 2012 16:20:36 +0000 (UTC), (Edward A. Falk) wrote: In article , John B. wrote: I got this in my e-mail today from one of the people I now who send jokes rather then bothers to write. I initially was going to delete it but after reading it I wondered. Is there any accuracy in this ? Some, but not a lot. http://green.autoblog.com/2012/02/24...chain-email-is... http://gmauthority.com/blog/2012/02/...email-telling-... Just google for "chevy volt email" for more links. One issue is that the volt is meant as a short-haul commuter. *You use it as an electric car for 99% of your regular commuting, and then the gas motor kicks in for long trips. *The author of the anti-Volt email deliberately chose a usage pattern that shows the Volt at its worst. But its still a valid usage pattern, correct? When compared to standard automobiles. If one were talking about bumper cars..then perhaps it wouldnt be. Correct? Gunner And if one were talking about argumentative loser clowns with gun fetishes, GummyBear would float right to the top of the pile. But here, we're talking about an electric car, which currently runs 25 - 50 miles on battery power. That would fit better than 90% of my driving, without ever running the engine. As Ed Begley Jr. said, "The electric vehicle is not for everybody. It can only meet the needs of 90 percent of the population.” my current commute is one flight of stairs to my office, and another flight to my shop. The LONGEST regular commute I ever had was 11 miles each way. The computer store is 12 miles from here, Harbor freight is about nine miles and Sears Hardware is less than a mile. |
OT Chevy Volt
Ed Huntress wrote:
Ah, I believe that's the square of speed, Jon: D = Cd pV^2A/2 (Drag equals coefficient of drag times gas density times velocity squared times frontal area over two) Where the cube factor comes into play is in the *power* required as velocity increases. Whoops, you're right! Jon |
OT Chevy Volt
Ed Huntress wrote:
Jon, I think you misunderstand the configuration of the Chevy Volt. It is a serial hybrid, not a parallel hybrid like your Civic. It doesn't matter how large or small the engine is in the Volt. It won't accelerate any faster, except perhaps with a nearly-dead battery, because the engine has no mechanical connection to the wheels -- again, unlike your parallel-hybrid Civic (or Prius, or whatever). The Volt runs on the electric motor only. The engine just charges the battery. That's how a serial hybrid works. No, I don't believe the Volt is a serial hybrid. What I understand, entirely by reading articles on it, so that could be wrong, is that it is a dual-mode vehicle. it runs off batteries until they are low, then runs off the engine, but never allows the batteries to be charged by the engine. Maybe the batteries can take charge when decelerating. But, my understanding is once it has switched to engine power, is will not behave as other hybrids. Serial hybrids are theoretically more efficient for the plug-in hybrid configuration. Parallel hybrids are the way to go when the battery is just a booster and a sort of fill-in for the mechanically connected gas engine, as on your Civic. The two cars are based on essentially different power/driveline concepts. Agreed! Parellel hybrids shine in stop-and-go city traffic. On the highway, the battery and electric motor are mostly dead weight, although you get a compensating benefit (more than compensating, in the better parallel-hybrid examples) by using a smaller gas engine than you would have without the battery boost for acceleration and hill climbing. Exactly! if the Volt allowed the battery system to stay operational and used it like other hybrids, they could have cut the size of the gas engine considerably. But, then they would have needed to make an engine specific to the Volt, which they SHOULD have done! Cutting weight has huge benefits. The Honda Civic hybrid has only a 20 Hp assist motor, so it NEEDS a fairly hefty engine. The Prius and Volt have enough electric motor HP to use it as the primary drive. They're two different ideas. The Prius/Civic is a waystop on the way to plug-ins. The Volt is a little bit ahead of its time, because batteries still cost too much and the range probably needs to be 50 miles to reach the needs of a larger segment of the driving public. But the Volt is where we're headed, and every car manufacturer knows it. Well, mostly true, but there is no way for the serial scheme to beat a parallel hybrid for low energy loss. Coupling a gas engine to the wheels with a geared or CVT transmission has to be more efficient that going from crankshaft to generator to VFD to VFD to motor to transmission to wheels. Now, if you optimize the engine for ultra-efficiency and it becomes problematic to directly drive the wheels with it, then it may work out better. Jon |
OT Chevy Volt
Larry Jaques wrote:
Yeah, that would be the ideal fix. That smaller engine would likely be much quieter and lighter, too. But is the air conditioning system the reason for the larger, auto-style engine? You certainly don't need 86 HP for an air conditioner. Both the Prius and Honda Civic hybrid have electric air conditioning that runs off the hybrid battery. 3 - 5 engine Hp is all it takes if running off the engine. I assume the Volt also has to have electric A/C. Jon |
OT Chevy Volt
On Mon, 27 Feb 2012 14:36:10 -0600, Jon Elson
wrote: Ed Huntress wrote: Jon, I think you misunderstand the configuration of the Chevy Volt. It is a serial hybrid, not a parallel hybrid like your Civic. It doesn't matter how large or small the engine is in the Volt. It won't accelerate any faster, except perhaps with a nearly-dead battery, because the engine has no mechanical connection to the wheels -- again, unlike your parallel-hybrid Civic (or Prius, or whatever). The Volt runs on the electric motor only. The engine just charges the battery. That's how a serial hybrid works. No, I don't believe the Volt is a serial hybrid. What I understand, entirely by reading articles on it, so that could be wrong, is that it is a dual-mode vehicle. it runs off batteries until they are low, then runs off the engine, but never allows the batteries to be charged by the engine. Ha! All of Chevy's press releases described the car as a pure series (or serial) hybrid: http://gm-volt.com/chevy-volt-faqs/ Now I see that it's a hybrid hybrid -- maybe. g: http://www.motortrend.com/features/e..._how_it_ticks/ On this one, scroll down to the GM press release. Some of the news reports have said that the "second motor" is the electric generator. Others say it's the gas engine. It appears to me, from Motor Trend's analysis, that they're talking about the gas engine: http://www.autoguide.com/auto-news/2...l-special.html I realize that's a little hard to follow, but note that the batteries ARE charged by the engine. The engine drives the wheels mechanically only in a very limited realm. You'll note that one of the electric motors is a generator that charges the battery. Most of the time, the car runs as a serial hybrid, with the gas engine (if it's running) charging the battery, and the battery powering the electric motor that drives the car. Under some conditions, the gas engine is clutched mechanically to the planetary gearset and contributes to the drive power. Maybe the batteries can take charge when decelerating. But, my understanding is once it has switched to engine power, is will not behave as other hybrids. Serial hybrids are theoretically more efficient for the plug-in hybrid configuration. Parallel hybrids are the way to go when the battery is just a booster and a sort of fill-in for the mechanically connected gas engine, as on your Civic. The two cars are based on essentially different power/driveline concepts. Agreed! Parellel hybrids shine in stop-and-go city traffic. On the highway, the battery and electric motor are mostly dead weight, although you get a compensating benefit (more than compensating, in the better parallel-hybrid examples) by using a smaller gas engine than you would have without the battery boost for acceleration and hill climbing. Exactly! if the Volt allowed the battery system to stay operational and used it like other hybrids, they could have cut the size of the gas engine considerably. But the Volt's gas engine is only 1.4L, 80 hp. The Prius engine is 1.8L, 98 hp. The Honda Civic Hybrid's engine is 1.5L, 110 hp. I haven't seen the weight figures on the engines, but the Volt's engine is the smallest of the three in displacement. It's based on the little Opel engine they sell in Europe. But, then they would have needed to make an engine specific to the Volt, which they SHOULD have done! Cutting weight has huge benefits. The Honda Civic hybrid has only a 20 Hp assist motor, so it NEEDS a fairly hefty engine. The Prius and Volt have enough electric motor HP to use it as the primary drive. They're two different ideas. The Prius/Civic is a waystop on the way to plug-ins. The Volt is a little bit ahead of its time, because batteries still cost too much and the range probably needs to be 50 miles to reach the needs of a larger segment of the driving public. But the Volt is where we're headed, and every car manufacturer knows it. Well, mostly true, but there is no way for the serial scheme to beat a parallel hybrid for low energy loss. Coupling a gas engine to the wheels with a geared or CVT transmission has to be more efficient that going from crankshaft to generator to VFD to VFD to motor to transmission to wheels. Now, if you optimize the engine for ultra-efficiency and it becomes problematic to directly drive the wheels with it, then it may work out better. Jon |
OT Chevy Volt
On Feb 27, 2:18*pm, Ed Huntress wrote:
Those ideas are over my head. I read a paper or an article on using cars as storage for the grid, but there are so many variables that I haven't attempted to evaluate it. -- Ed Huntress Take a look at http://www.priups.com for an interesting application. I know this guy. He's kind of a kook, and not the nicest guy top work for (I know a few of his ex-employees), but you have to admit, it's a cool idea, and he's been doing it for years. |
OT Chevy Volt
Ed Huntress wrote:
http://www.autoguide.com/auto-news/2...l-special.html I realize that's a little hard to follow, but note that the batteries ARE charged by the engine. The engine drives the wheels mechanically only in a very limited realm. You'll note that one of the electric motors is a generator that charges the battery. Well, this is totally new info, everything I've read so far says there's no mechanical connection in the Volt! But, quoting from the article : There is no direct mechanical connection (fixed gear ratio) between the Volts extended-range 1.4L engine and the drive wheels. Jon |
OT Chevy Volt
On Mon, 27 Feb 2012 16:36:38 -0600, Jon Elson
wrote: Ed Huntress wrote: http://www.autoguide.com/auto-news/2...l-special.html I realize that's a little hard to follow, but note that the batteries ARE charged by the engine. The engine drives the wheels mechanically only in a very limited realm. You'll note that one of the electric motors is a generator that charges the battery. Well, this is totally new info, everything I've read so far says there's no mechanical connection in the Volt! But, quoting from the article : There is no direct mechanical connection (fixed gear ratio) between the Volt’s extended-range 1.4L engine and the drive wheels. Jon Yabbut....if you read all of that stuff (only recommended if you're obsessive, like me), you'll see that the article was sort of fudging. It appears to me from the entirety of those press releases and articles that the gas engine is clutched to one part of the planetary gearset at some range of torque loads (one Chevy engineer says it's torque, not road speed, that determines when it hooks up) and adds approximately 10% of the total power delivered by the wheels. Basically, it's a series hybrid setup with a complex coupling between the primary motor, the secondary motor/generator, and the gas engine. And the coupling looks like it's handled through clutching and unclutching the planet-gear yoke and the ring gear. In several places it says that the gas engine alone will not drive the wheels. That sounds to me like the planetary gear set will freewheel if the main electric motor isn't driving it with some force. In fact, I think that's the explanation those writers were reaching for. As the once-upon-a-time gear editor for American Machinist, I feel planetary gearsets in my bones. g Jeez. Did they have to do that to us? I never would have made a comment here if I had known what was going on there. d8-) Anyway, the Volt is one more step on the path to somewhere. I still think it's ahead of its time, and that the only people who will buy them are the early adopters who want to be first on their block with something new. -- Ed Huntress |
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