Progress On Electric Cars
Mike sends along a couple of items of interest to those anxiously awaiting the era of production electric vehicles. First, there's the upcoming Aero EV, which Shelby Supercars claims will charge in just 10 minutes and will be able to produce over 1,000 horsepower, powering the vehicle from 0-60 mph in less than 2.5 seconds. Then there's the announcement by Aptera of the first pre-production model of the Aptera 2e, which will have a top speed of 90 mph and go around 100 miles on a charge. This EV also features a strong and aerodynamic body, a lithium-based battery, front-wheel drive, and an improved door design. Release is planned by October of 2009.
What, no love for the Big 3? Lemme see here. We've got the range-extended Town & Country EV from Chrysler that will do 40 miles on a single charge, plus another 360 miles using a mixed gasoline-electric propulsion. They're also working on Dodge and Jeep vehicles with similar designs.
Ford used to have the market in a bag with their Ford Ranger EV pickup. Of course, they discontinued it in 2002. Now they're playing catch-up with the rest of the market. They are promising an electric vehicle by 2011, so there should be plenty of competition in late 2010/early 2011.
Speaking of competition, what discussion is complete without mentioning the Chevy Volt? Still the gold standard for the emerging industry, it will be anyone's guess if it lives up to the hype.
I rather like the look of this car, but I am concerned by a couple of issues. First up is the single back wheel. Won't that make the vehicle a rollover hazard? I presume the front wheels are extended to help mitigate this issue, but one good blowout looks like it could send that sucker fishtailing right into roll. (And for that matter, how servicable is that tire?)
My second issue is the power-train. Generally you want as much weight sprung as possible, and electric motors are heavy. Aptera seems to understand that as it appears there is an axel linkage on the front wheels. Presumably this is how power is transmitted. Is having that axel exposed going to cause any safety and reliability issues? I'm just imagining something flying off the road and getting wrapped around the the axel. Or in an accident, a pedestrian getting an appendage caught in there.
Or is this a rear-wheel drive vehicle? In which case, is that axel really necessary? Could'nt the steering be accomplished by swiveling independent pods rather than linking them?
Just my 0.005 cents worth after accounting for inflation. :-P
P.S. The Shelby looks pretty darn sweet! I'd never spend money to purchase a vehicle like that*, but I wouldn't mind taking her for a spin.
* Unless I had way too much!
Javascript + Nintendo DSi = DSiCade
parking lots. If Shelby Supercars created their own charging technology in-house, I wouldn't be surprised if (assuming SS licenses their technology, or assuming the company which licensed the tech to SS pushes it to other car manufacturers as well) gas stations are flattened and converted into parking lots with high-wattage 220volt outlets per parking spot.
Let's hope that SS's claims are true. This would eliminate the need for hydrogen cars as well (water vapor is another major greenhouse gas).
Viable Slashdot alternatives: https://pipedot.org/ and http://soylentnews.org/
Toby Hunter, Minneapolis Star. No really, is this a joke?
I came to the datacenter drunk with a fake ID, don't you want to be just like me?
1000hp = 745,699.872 watts
American High Voltage Outlet = 240 V
745699.872 / 240 = 3123 A
And this things charges in 10 minutes? Uh, right.
And a range of 5 miles if you use it.
Now that gas has come down in price, predict these things - as always - arriving too late/early for the market.
Still want a Tesla, tho'.
http://www.teslamotors.com/
am i the only one that has been continually disappointed by the chevy volt? shorter distance on charge, underpowered, longer charge time, and still nowhere near the streets.
- 5 passenger
- mid size and safe
- 500km range
- a/c and heat
- charge up at home and work
- under $20,000
Well duh, water vapor should always be in the air, but if suddenly a whole bunch of cars start creating immense amounts of water vapor from hydrogen gas + oxygen... well, that's much more water that's being converted from liquid to gas than by weather alone (or even by cars today).
It's a fact overlooked by many.
Viable Slashdot alternatives: https://pipedot.org/ and http://soylentnews.org/
choose 1
a. people anxiously awaiting electric cars
b. linux desktop users
c. slashdotters that read articles
The big problem with electric cars is energy storage. Lithium batteries are too expensive, take too long to charge, don't have a high enough energy density, and don't last long enough. If the current work on ultracapacitors pans out (and that's a BIG if) electric cars will become a lot more practical for the mass market.
[Insert pithy quote here]
Cool cars, but the car prices still make gas cheaper. Green technology is too expensive, and the tax breaks still won't help me break even. If I sell my midsized SUV and buy one of these, how long until payback? Assuming I can get $10k on a trade-in and option 2 costs $25k, that leaves me out $15k, which would buy me 7500 gallons of gas, enough to drive me 150,000 miles on the highway. If the price of gas doubles again, I'd still have to drive 75,000 miles before I see one red cent. If I wanted to read about sports cars I can't afford I'd head over to Car and Driver or Motor(head)Trend.
...I just need something to get me the 6 miles to work and then back again. The four mile round trip to the grocery store would be a bonus. Ahh...But in TX, AC and heating are a must.
When Fascism comes to America, it will call itself Anti-Fascism, and tell you to give up your guns.
The Tesla and Aero are interesting, but waaaaaaaaay out of normal price range. And most of the other electric cars don't cut it. This is what I want, and probably what most consumers want:
1) A real sized car, not a tiny econobox with motorcycle-sized tires
2) Range of at least 100+ miles per charge (I am guessing 80% of people are within a 20 mile round trip to work, 90% within 30 miles, and 95% within 40 miles; so other than occasional, long road trips, that is a lot of coverage).
3) Ability to charge with regular home voltage/current (don't care if it takes several hours to charge overnight)
4) Real performance- at least as fast (accel & top speed) as a gas car (like a 3 liter V6, not a 2 liter 4cyl)
5) Features- full A/C, heat, heated seats, auto climate control, GPS, cruise, auto lights, auto windows, defroster, etc
6) Safety- comparable to a quality conventional car- crumple zones, airbags, seatbelt tensioners
7) Reasonable price- comparable to a quality conventional car, although many of us are willing to spend more for the advantage of electric... but not 50%+ more
When that happens, I am betting people will flock to them. Hybrids (plugin or not) are just too complicated; they have all the complexity of a gas engine (cooling, emissions control, transmission, lube, injection, etc) with all the added cost of electric (motors, batteries, charging systems).
"To say that Shelby Supercars are trying to beat Tesla would be an understatement." Ahmm! For the amount of money they ask for the Tesla, ANYTHING will beat the Tesla in terms of reliability. What was in "Top Gear"; Ehmm, structural panel failure, break failure, and then a short circuit..... I sincerely hope that Shelby will make something better than the Tesla.
Good point. Most of the electricity around us near DC is from coal/oil, though some parts get nuclear energy as well.
You know what would work best? This.
Viable Slashdot alternatives: https://pipedot.org/ and http://soylentnews.org/
Those high paid morons still do not get it.....
I want, need, have needed for years an electric car. I want 100 Klicks per charge. It only has to do maybe 100 Kph max. OK, so I need to re-buy the batteries every five years or so. I do not want a car that goes 0 to 110 Mph in 3 seconds. That is just stupid. It should cost around 15 grand. Where is that car?
This has pissed me off for years!
And I call myself Willy Everlearn
No hour on a horse is ever wasted. Winston Churchill
I do not understand why these cutting edge car designers can't make a conventional looking car (something as boring looking like a Corolla). Your friendly neighborhood soccer mom or PTA dad is not going to want get caught driving this.
I am not saying they should copy Corolla's body style but for heaven's sake, make something that looks like its meant for this planet. I am betting that these people probably spent a good deal of money on the shape designer. This car will appeal to teenage nerds, extreme yuppies and the Hollywood set. How many of them are there anyways ??
If they are really serious about addressing the actual gas problem, they should make something that looks a little more common (oh horrors !). This car looks like a rich man's gimmick. Don't be surprised if the middle class gives it a miss.
How much $ for the Aero EV? I'm thinking the batteries alone must be over $100K, so we're talking what, a quarter-million dollar car? Much as I'd love to own one, I'm just not THAT desperate for an elaborate electric penis-extension.
I've abandoned my search for truth; now I'm just looking for some useful delusions.
Thats amazingly short sighted. Do you think the drop in gas prices will stay that way forever? I'm amazed on the stats for SUV sales in the US. They vary in lock step with that weeks gas prices as if it mattered.
Oh and the shelby has 150mile range just so you know.
Lets say its a tesla-equivelent battery pack, a nice 50 kWH.
To charge in 10 minutes, you'd need to shove in power at 300 kW!
At 220V, that means you'd need 1300 A of current!?!
Test your net with Netalyzr
I've compiled a big list of upcoming EVs and their stats here.
Fox: "I think we should call it... your grave!" Cast: "Curse your sudden but inevitable betrayal!"
Coal has killed FAR more than is attributed to it. Right now, nearly all the deaths attributed to coal is based on coal mine deaths, which IS much greater than nuclear power deaths (even when including all the uranium mining for weapons). But what is not added in there is the mercury poisoning that we get. Most of the mercury in our water is from coal. Likewise, much of our acid rains, etc are from coal. In a nutshell, Coal is far far worse than nukes.
I prefer the "u" in honour as it seems to be missing these days.
Recharging a battery that could run a car that size, that long, in ten minutes would require far more current than an electric grid could reasonably deliver, at least to more than a token few cars.
SirWired
I've been following Aptera for quite a while.
I haven't checked the site for a while, but all of their proposed plans had REAR wheel drive. The single rear wheel is powered by an electric motor. The idea was to make the vehicle inexpensive (the plan was ~20k, but last I checked the total was closer to ~30k) and reliable. I didn't like the plan for the windows to be static (immovable), but the roof was to have a solar panel array dedicated to cabin temperature moderation (alleviating the heat exhausted pet/child left in the car).
The Gas/Electric hybrid had a small gasoline generator that could recharge the batteries during operation, yielding a theoretical ~100 miles per gallon (5gallon tank and ~500 miles range) if one fully depleted the gasoline tank.
The Aptera 2e is the electric only model.
This summary from Techreport is just wrong. Sorry for the rant but the jist of it all is the Aptera's are all REAR wheel drive with a nice sturdy belt transferring the power.
Unfortunately after a quick navigation of the website, I could not find the information I had once perused.
According to a DOE study conducted at PNL, switching to EVs is a net win even on our current grid. The main reason is that power plants are a lot more efficient than gasoline-powered cars at turning fuel into energy, while transmission and charging are very efficient. Also, EVs, which mainly charge at night, reduce the need for spinning standby, allow plants to operate more efficiently at night, and so on. The net result is that you could switch 84% of our cars over on our existing grid and you'd cut CO2 emissions by a third, increase PM somewhat, NOx would drop slightly, SOx would stay the same, and CO and VOCs would be nearly eliminated. The pollutants that would be emitted would be emitted on average much further from people's lungs and so affect them less.
Fox: "I think we should call it... your grave!" Cast: "Curse your sudden but inevitable betrayal!"
Last time I checked, even the SSC Ultimate Aero's gasoline engines, which has 1000+ hp and 1112 ft-lb torque, need a 6-speed just to make it to 208mph that Ultimate Aero EV is reaching. Since the EV's torque doesn't even reach the rating of the gasoline car, it will have to be in a very tall overdrive gear running probably twice the redline rpm as the original, and have a salt flat the size of Utah for it to accelerate anywhere close to top speed. In other words, even more unobtainable than the gas Aero's 270mph top speed. Besides, by running electric engine at such high speed for 500hp engine, it is going to wear out a lot quicker than the gas Aero's engine. Sure, your computer's hard drives may be running 15000rpm all the time, but they are not carrying the load anywhere close to Aero EV is carrying, and they certainly do not generate even .5 horsepower.
Reliability aside, having engine revving up all the time with lousy 3-speed is going to eat up battery power a lot quicker than a 6-speed running at lower RPMs. Sure supercar owners do not car much about fuel efficiency as average Joes do, but increasing the need to recharge will wear out batteries a whole lot faster. Last time I checked, rebuilding batteries are a lot harder than rebuilding internal combustion engines, and in many cases, old batteries can only be recycled at best.
Where is the electrical energy supposed to come from? Our power plants still aren't close to being non-polluting let alone carbon neutral. This will be an improvement over current gasoline engines, but it only solves part of the problem.
In the mean time, it's good (though hardly believable) that the Shelby has such a quick charge time. In order to be viable for long-range trips (say a full day), you need to be able to get a quick charge while on the road. Hell, even if you can only get ~100 miles/charge, it's still a pretty good thing. Think about it[comma splice] you already spend about 3 minutes at the gas station, so this isn't that bad.
I have left slashdot and am now on Soylent News. FUCK YOU DICE.
The big problem with electric cars is energy storage. Lithium batteries are too expensive, take too long to charge, don't have a high enough energy density, and don't last long enough. If the current work on ultracapacitors pans out (and that's a BIG if) electric cars will become a lot more practical for the mass market.
There are certainly issues with current electric cars, but only by having them in the market place in some form will there be any incentive to improve them. Lithium is expensive, but it will come done like anything else.
My concern will electric vehicles is how they will pan out in cold climates, like Scandinavia or Canada. From my experience batteries perform badly in the cold, with apparent charge dropping off until the battery is warmed up. For me this is where the real test of the technology will happen.
Jumpstart the tartan drive.
http://www.wired.com/cars/futuretransport/magazine/16-09/ff_agassi?currentPage=all
http://blindscribblings.com - Tasty pop-culture in conceptual fashion.
I know a lot of people are all big on plug-in electric cars, but what do those of us not fortunate enough to have integral garages with outlets in them? I don't know what the percentages are, but I'm assuming there's a lot of average Joe's like me who, even if we own our own homes, have to park on the street wherever we can find parking. Are they going to put outlets in the sidewalks for me?
Sugapablo
We're talking about energy storage here. First off, to accelerate a 2000 pound (907kg) car 0-60 in 5 seconds (Mustang GT take-off with stick) requires 4865kg*m/s^2 i.e. 4865 newtons of force. It's going to go about 5m/s^2 for 80 meters, expending 60 watts of power.
My grasp of physics is pretty incorrect here. Somebody please help, because the numbers I got say a 12V car battery supplying 5A of current can pull this off (they can supply around 400A for 30 seconds at 0F, so ... yeah a car battery would run your car for about 40km with this math, at full acceleration, supplying 400hp).
I can't do this, damnit!
Support my political activism on Patreon.
Remember these guys? What happened to their idea? A jet-powered hybrid?
.. pa-ra-bo-la, pa-ra-bo-la, 2 pi R, 2 pi R, where's your latus rectum, where's your latus rectum, 2 pi R
Oh and the shelby has 150mile range just so you know.
His mention of range was to point out that it's ridiculous to have a 1,000 HP motor when actually using all 1,000 HP would drain the batteries so fast you'd never get anywhere. Of course it would go farther if you only used a tiny fraction of the motor's capability, which is almost certainly what the 150 mi value is based on.
The Aptera looks like a recumbent bicycle. Is it going to be legal to take it on American roads?
It's easy to make a car get a zillion miles to the gallon (or the charge) if you remove all of the safety features, like a body that crunches instead of the driver.
If you want high mileage, get a motorcycle. It may also significantly improve organ donations.
For you questioning the "charge in 10 minutes" claim : be aware that a lithium ion battery exists that DOES have this feature. Altair nanotechnologies is shipping a battery right now that supposedly has an improved anode that solves the problems that prevent rapid charging conventional lithium ion batteries. Actually, they claim 5 minute recharges in their marketing materials.
They ALSO claim to have solved the other big problem with lithium ion batteries : finite lifespan. They claim their batteries do not 'wear' and can be put through at least 20 years worth of power cycling. Again, note that these special batteries can be purchased today, they are not vapor-ware. (I don't know if their claims are valid, but I do know the physical batteries exist)
Yes, I am aware that a 10 minute recharge would strain the capacity of standard electrical service. You would need the electric gas stations to either have extremely high amperage connections to the grid, or to have some kind of energy storage technology at the station. Such as super-capacitors, a bank of precharged batteries, flywheels, ect.
So could it be done? Mass produce these high end lithium ion batteries by the billions, putting banks of them in every new car and truck on the road and in electric gas stations? I think it could, but the huge upfront costs of such a conversion are going to put it off well into the future. The ultimate long run costs might be the same or cheaper than fossil fuels, but in the short term consumers won't pay for something that is significantly more expensive.
For the conversion to occur, one of these has to happen
1. "Moore's law" makes lithium ion batteries so cheap that electric cars are cheaper than gas
2. Oil shortages make gas so expensive that even electric cars look cheap
3. The government puts a huge tax on gasoline/diesel and artifically makes electric cars seem cheap
A lot of people have pointed out that an electric car is actually simpler than gas. The motors are a lot smaller, and the battery banks consist of thousands of identical battery cells. The only other thing in the car is the power handling circuitry, which is solid state. If the batteries didn't wear out with age, then an electric car would probably be much cheaper to maintain.
The Shelby looks okay, but the Aptera is ugly. If someone is looking to buy a car, they aren't going to buy that. It looks nothing like a car.
It seems to me that electric vehicles have to overcome some daunting problems: 1) charging - if it is to be a plugin type charger, then we are simply moving the source of pollution from a highly regulated point source (gas cars), to a gross polluter source (power plants). 2) battery disposal/recycling and costs - people tend to forget that the most: your Prius needs a $7-10K battery after a few years and there is currently no way to recycle the old one. 3) price - this has been mentioned here but its still a problem
Oh and the shelby has 150mile range just so you know.
Depends on the speed. You can probably get upwards of 200 miles if you push it faster! ;)
So yes, I do realize this.
Viable Slashdot alternatives: https://pipedot.org/ and http://soylentnews.org/
10 minutes from what power supply? 10 minutes on 240V, 100amps would allow it to produce 1000hp for an impressive ~0.5 seconds.
"Physics is to math as sex is to masturbation." -R. Feynman
With electric motors you pay heavily for "over sizing". Electric motors approach their max efficiency as they approach their maximum rated load. So using 1,000 HP of motors to generate 150 HP is pretty bad. (I admit it's also pretty bad-ass...)
Coding with assembly is like playing with Legos. Coding an application in assembly is like building a car with Legos.
Most journeys that people really need their cars for are less than 50km, going to the shops and commuting.
And if you buy a car for "most journeys" that doesn't handle "all journeys" you need to buy, license, insure, and maintain TWO cars. The costs are obvious and I won't even START on the environmental impact of that. (And don't give me "rent one when you need one", either.)
If the electric/hybrid is to REPLACE the fuel-only auto it needs to be able to handle the daily commute, the shopping trips, the entertainment trips, and the vacations.
Call me when you get one that can do the Silicon Valley commute and weekend shopping trips on batteries only, runs hybrid on ski trips to Tahoe and weekends in Reno (scavenging a couple thousand feet of altitude downhill energy for use uphill like a hybrid scavenges stops for starts), and goes all-day cross-country on the flat with mileage at LEAST as good as a gasoline-only car and distance between fillups ditto. THEN you're ready for prime-time.
Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
If you live in an apartment or in the city and have to park on the street, you really don't have a good way to plug a car in over night. I think I will patent a 'Charger Post'; insert credit card, open door and plug in car, lock door, next day insert card again to open door.
its only low for the time being, you can bet that when the economy picks back up so will the prices at the pump
If you're in the US, it actually seems like a good bet that gas will stay fairly cheap. If you look at the past few decades, we've had cheap gas with spikes here and there. There's no reason to think that things have fundamentally changed.
That said, there are plenty of good reasons to pursue electric/alternative cars. Pollution, energy independence, etc.
You're thinking of gasoline engines. Electric drivetrains are highly efficient across their entire torque/RPM range. "Optimal" is generally something like a third of maximum torque and a third of maximum RPM, but even the worst case (which is usually high torque / very low RPM) is usually only like 70% or so efficiency. Not a huge difference between that and the peak of 90-95% efficiency or so.
And actually, "over-sizing" electric drivetrains makes them *more* efficient. You have to use fatter cables to be able to handle the peak currents, which means that a given "cruising" current will encounter less resistance. The Tesla Roadster got something like 15 miles extra range when they upgraded to Powertrain 1.5 in order to compensate for removing the 2-gear transmission that kept breaking because there was too much torque.
Fox: "I think we should call it... your grave!" Cast: "Curse your sudden but inevitable betrayal!"
If you live in an apartment or in the city and have to park on the street, you really don't have a good way to plug a car in over night. I think I will patent a 'Charger Post'; insert credit card, open door and plug in car, lock door, next day insert card again to open door.
Like these, in London? (They're not actually free, there's a £200 yearly registration fee, but that's a bargain for parking in central London, where you'll be paying £5 an hour or more.)
I don't approve of the on-street ones though -- I'd rather they just removed the parking space. The street space in central London is far too valuable to be used only by a few people who can afford to leave a car there; a wider pavement (sidewalk) or a bike lane would benefit far more people.
To me, looks are an important part of the car buying criteria. Now with the price of gas as it was recently, I admit, I'll buy anything that gets good gas mileage.
But what I really [u]want[/u] to drive is a sports car. Even if it doesn't perform like a sports car.
ALL ELSE BEING EQUAL, I'll pick the car that looks like a Corvette.
A work that expires before its copyright never enters the public domain and thus enjoys eternal copyright protection.
How many decent performing electric make and models will there have to be before there's an Electric Vehicle Racing Association? (Is there one already? I haven't googled just yet.) And not necessarily drag racing or slow moving endurnance events. I'm talking about track style events (and it doesn't have to be circle track a.k.a. NASCAR style, you could base it on another racing series with switchback turns that might penalize heavier cars) with pit stops where not only do they swap the tires when the car is jacked up, but also may have some established means to hot swap the battery pack before dropping the car back down. And to make things a little more challenging, restrict the number of battery packs in rotation per event. So that way, if you're charge is low on pack #3, you'd better hope that battery pack #1 is topped off because it's next in rotation again. Even if it's not loud and smelly, the go-kart like torque-heavy acceleration and the drivers of the electric race-cars would still put on a good show. Seems like a well thought out racing series would be an entertaining way to push electric powertrain development in a way that worked well for internal combustion power.
And using electricity means that everyone has a fuel source right at home, ready to go.
Not exactly... our electric grid could not support a population of people charging cars at home. At least not as it is now... so, 'ready-to-go' not exactly. (Incidentally, improving the electric grid is in Obama's agenda, so that is good.)
For the record though, I agree 100% on the comments of efficiency, and the principle in general. I'll add too, that electric motors are vastly more efficient than internal combustion motors.
Modern motors and batteries are great! We can make a car with perfectly acceptable range and have been able to for a few year now.
It's all about recharge times! Most people want a car that can get them from where they are to wherever they want to go, and get them back again. Having to stop overnight for a recharge is a seriously major issue.
in NZ you should check out: http://www.greenstage.co.nz/ an open-source LiFePO4-based racing vehicle.
no need to burn a lot of coal to save some octane. what about this: http://www.solarnetwork.net/
His mention of range was to point out that it's ridiculous to have a 1,000 HP motor when actually using all 1,000 HP would drain the batteries so fast you'd never get anywhere. Of course it would go farther if you only used a tiny fraction of the motor's capability, which is almost certainly what the 150 mi value is based on.
But you really only use the capacity of any car engine a fraction of the time - to start from lights, to accelerate to highway speed, etc. The rest of the time you coast at a fraction of capacity. And for this electric motors are fantastic - power out follows power in very closely, unlike a large-displacement combustion engine. And most of the time you wouldn't use the full 1000 hp, in fact anything over 300 hp likely makes no difference whatsoever in normal traffic. With a composite body you can still accelerate and brake like a motorcycle. But it might be fun to have on track days, and since it doesn't affect the everyday driving negatively, if you don't mind the expense - why not! (And yes, I do understand that acceleration is a function of gearing, while top speed is a function of hp.)
http://www.revaindia.com/
This Company has been in business since 1994.
That sounds awesome, doesn't it? The funny thing is, when I see that, I think, "Oh, this is a high-powered car, analogous to a gasoline-powered car that uses a V-8. I don't buy those kind of cars; I buy the cheapest stuff that Toyota and Honda make. Ergo, I don't want this particular electric car."
Yes, it's irrational. I know that high-performance doesn't necessarily really mean expensive to run. And electric cars all tend to all have really good acceleration. I don't actually, consciously and rationally consider a slow car to be "better" than a fast car. That's just been the historical tendency of gasoline-powered cars (the faster it is, the less likely it's the car that I want).
But here's a marketing hint: Stress the convenience of plug-in. Stress the economy of efficiency. Shhhh on performance; I don't want to know. I do, but I don't. Know what I mean?
"Believe me!" -- Donald Trump
At least according to government standards. That helps reduce the safety standards which reduces the weight and cost of the vehicle.
So driving a three wheeled electric car around gives you more stability (and keeps out the elements) than a 2 wheeled motorcycle but you're still never going to win in a crash. Unless you consider not dying a win for you. It is possible that in minor crashes you'll walk away.
Work Safe Porn
I mean; we still need to generate the electricity to charge this baby. And where does that come from? Ah right; from the sources we want to keep out of the picture because we want to focus on how clean the car is.
There's no reason to think that things have fundamentally changed.
Actually, there is an amazing good reason to believe things have changed. All the previous spikes in gas prices have been caused by supply shocks. This means that various oil producing conglomerates have decided they would or could not provide the amount of oil because they didn't like the cost of it. This past years price shock was caused by a demand spike that could not be met. With the rapidly growing economies of China and India (~1/3 of the world's population) there are going to be more and more demand shocks on resources that have never been seen before. I'm not upset at China or anything but the game has changed with their growth and that means that there need to be real changes in how we view our resources.
"Educate the mind but never at the expense of the soul."~Blessed Basil Moreau
The simple fact is that electric vehicles will only ever be very practical in the southern part of the United States. Get north of Utah and the weather is simply too cold for lithium-based batteries to work well. Even lead acid batteries struggle in the cold. Certainly in Canada an electric vehicle is a no go 5-6 months out of the year. Even if you find a way to heat the batteries and keep them warm, that takes electric power that you can't use for actually driving. When stopped you'd obviously plug in your car to charge and warm it. Even still, on those 40 below mornings (yes parts of the US and Canada do experience them from time to time), as I coax my gasoline car to life (which will barely crank over when left unplugged), I am reminded as to some major flaws in the electric car idea.
Nuclear power is an excellent idea.
I prefer fusion myself. Big 'ol billions of years of reliable fusion power plant... and our planet orbits it constantly.
Now we just need enough collectors, via solar panels and concentrating solar power plants, to use all that freely available power.
Uh, Linux geek since 1999.
It makes far more sense working on those "never ready" green technologies that are perpetually 5 years away than it makes sense working on similar mythical clean coal and next-gen nuclear technologies.
Nuclear power never was profitable and likely will not be in a generation or more. It costs so much more than most everything else its amazing it has continued as long as it has (government fits the bill to prop up the industry.)
Democracy Now! - uncensored, anti-establishment news
.. how about progress on flying cars?!? am I right?
---- "Excuse me. Where's the children's gun section?"
Ya, the supercars are cool if you are a bailed out banker with some buckets of cash sitting around, the three wheelers are...interesting.... looking, Detroit has the usual plethora of concept cars they are fooling around with like they always do, but the one to watch will be the Better Place organization because they are building the whole EV stack, they have a name brand big OEM behind them (nissan/renault to build the vehicles which will be normal looking, plus they are developing a standard charger plus fast battery pack swap outs), and have national governments and some US states behind them. These will be the electric cars that really get the show on the road for the "masses" guy.
You only need to heat them before starting, and not much energy is needed for this if the battery pack is well insulated. Once going, internal resistance will keep the packed heated.
I don't know why Ford never came out with this model!
I understand the efficiencies with a electric motor can be substantial. But the math does not add up.
A battery will delever up to 90% of the energy put into charging it. A electric motor can be up to 90% effecient as well so we are at 80%. Cool.
Now the grid will loose anywhere from 20% to 50% in distribution. Just for conversation lets call it a 35% average loss. So we are at about 55% energy lost so far.
Now a coal or gas power plant has a 40% maximum efficiency. Since most of the electricity generated in the US is via coal, you just added a double wammy because you are not burning a nice hydrocarbon anymore, you are just burning carbon.
So now that your electric car is a 20% to 25% efficient contributing to CO2 emissions more than a standard hydrocarbon burn, what state is pushing for this technology... California???? The state of rolling black outs?
Sorry, it just does not add up.
Give me a Hybrid Turbo Diesel any day!
If you're going to recharge a battery fast, you need lots of amps don't you? Where's the current source for that?
Personally, I think the best solution is aluminum air batteries which, when they are drained, you would replace at a station. Not much different than stopping at a (gasoline/diesel) station now. Then you could optimize the design for other things instead of fast recharge.
In theory, theory and practice are the same; in practice they're different. (Yogi Berra & A. Einstein)
Hydraulic hybrids are being designed that are simpler than electric hybrids with higher energy storage density and higher MPG. Electric cars may be the "obvious" solution to higher mileage but they are quite complicated. Most of us techie types thing of electricity as the only way to store power but that isn't true. It may be that 3rd generation hybrids use a completely different energy storage model that that of a battery or capacitor.
...no JATO rockets, less space than a (Chevy) Nomad. Lame.
No win...
Point 1: I can buy a used car that gets 25MPG+ for about 3,000 $USD off ebay today.
Point 2: I can put 10-13 gallons into the car in less then 5 minutes (including prepaying time)
Point 3: I can go 200-250 miles on 1 fill up.
I will no change that progression, for a deprogressive state due to a lack of fuel. Until the fuel is gone, no more gas stations or a new fuel type that provides the same or better on the points above. It will not happen. Welcome to the world of today.
Carbon footprint, global warming, whatever.
The molten-salt 'Zebra' battery works very well in the cold, and is competitive with lithium-ion in terms of energy density.
Basically, it needs to be heated to 250 degrees Celsius to work. The battery is very well insulated, so if you turn off the heat it takes 4 days to completely cool down. (And another two days to heat back up to 250 degrees)
You need to keep the car plugged in at night to run the little heater, which can also be powered by the battery itself. You can get this type of battery with the Th!nk City electric car, and it is superbly resistant to cold temperatures.
http://en.wikipedia.org/wiki/Zebra_battery
I don't see any reason you couldn't take the insulation and heater from a Zebra battery, and use them to package a battery of any other type. For one thing, the required temperature would be much lower.
note: I'm not complaining about you specifically, but a whole class of people who all annoy me.
ADDING "THE FACT IS" TO THE BEGINNING OF YOUR SENTENCE DOESN'T MAKE IT TRUE.
You aren't a god. You can't call something a fact and make it so. If you're gonna use these words, cite a goddamn source.
No, they don't.
Your only experience with lead-acid batteries is trying to start your car in the morning... yet you consider yourself an expert, and feel qualified to make baseless assertions.
Lead-acid batteries are used in UPSes in open-air telcom buildings, even in the coldest areas.
The fact that cars have trouble starting in the cold is only half due to battery voltages falling in the cold weather... The thickening of oil, and shrinking of cylinders has just as much to do with it. And even then, if you had a battery twice as large, you'd never even notice. It's just that the cheapest (therefore, smallest) battery that will work is used in cars, so you don't have much of a margin to work with in adverse conditions.
An electric car won't have anything like the duty cycle of current car batteries. They will draw relatively small amounts of power when you start moving, and continue the draw as you continue to move. Since the draw is only 1/1000th of the battery capacity, no matter how low the temperature, they will allow the vehicle to operate.
And once the vehicle is in operation, the continual discharge of the batteries will generate a substantial amount of heat, internally. The sheer mass of the lead-acid batteries will keep the normally generated heat from easily escaping, provided they aren't mounted externally, directly in normal airflow.
Getting RID of the heat generated is the real problem with batteries, and that's a manageable issue as well.
Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
Every dollar I spend at the gas pump sends money to Saudi Arabia and other countries that in turn fund terrorism, torture their citizens, suppress democracy, etc. Exhaust from internal-combustion engines contributes to asthma and other respiratory ailments, which kill thousands every year. Wanting an electric car is not just a gee-whiz feel-good thing.
Batman, here's an article by a reputable source, Agence France Presse, which says coal kills 20,000 people every year: http://tinyurl.com/CoalCarnage
That that is is that that that that is not is not.
Not that I believe you.
BTW for CO2 induced global warming to be a problem computer modelers have to pull a positive feedback coefficient out of a dark place. This coefficient represents additional H2O vapor in the atmosphere producing positive feedback on any CO2 based global warming.
Without additional H2O vapor, the CO2 is no problem.
John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
Electric motors and speed controllers generate heat. This one has liquid cooling. Think I see a way around this. Might not make it as practical as an IC engine car, but might make enough of a difference for many.
I ride an electric moped with lead-acid batteries (a little different from car battery) and I can't go nearly as far when it's freezing outside like it is now.
Shutting down free speech with violence isn't fighting fascism. It IS fascism!
http://en.wikipedia.org/wiki/Solectria_Sunrise
Deleted
Ok, so the next question will have to be: Why do these things always have to go through the spaceship stage? Don't most of us just want a car that looks and handles like a normal car, is affordable, drives further than back and forth to the hardware store and can be bought at a local car dealership? Will that ever happen by the way?
I've read lots of comments about grid concerns. One thing that I haven't seen mentioned was V2G technology. This is Vehicle to Grid. Suppose that 100,000 people have electric cars in a city. And 1% don't use their car on any given day. Each car has about 30kWh of battery energy. That's 30 MegaWatt Hours of energy that is available to go back into the grid. There are two ways for the power companies to use this. One is load leveling across the peak times 10am-2pm. So the vehicles can be plugged into the grid and the power company can suck the energy out of the battery and put it back into use during the high demand time. This saves significantly on new plant production and allows us to reduce our investments. The second way to load level is minute by minute. Currently power companies must generate "extra" electricity at all times just incase there is a power spike. They need to be able to provide energy to any spike. Thus, they have to produce extra at all times. If we use these same batteries to cover the spikes, we can match them exactly with power from batteries and we don't have to run high all the time. This will actually save about 10% of all the power consumed. With these two opportunities along with the fact that we would be using the powerplants at night and be able to improve our utilization by about 40%, we could actually see a reduction in the price of electricity. Full disclosure, in 2007 I started an electric vehicle conversion company named "Plug-In Motors". You can find our information at www.pluginmotors.com Kurt
And put wheels on them as standard so that they can easily be pulled out of the car through a slot. "Charging" your car could be just as fast as filling a petrol model.
Maybe 2-3 different sizes for different wehicle types.
FRA: STFU GTFO
"And even then, if you had a battery twice as large, you'd never even notice. It's just that the cheapest (therefore, smallest) battery that will work is used in cars, so you don't have much of a margin to work with in adverse conditions."
Wrong. The following is from the Trojan Battery company website (major manufacturer of deep cycle batteries) :
When operating batteries at temperatures below 80 F (27 C) they will deliver less than the
rated capacity. For example at 0 F (-18 C) the battery will deliver 50% of its capacity and
at 80 F (27 C) it will deliver 100% of its capacity.
"An electric car won't have anything like the duty cycle of current car batteries. "
In fact, the duty cycle will be much more severe. Starting batteries are designed for shallow discharge with high immediate power. Deep cycle lead acid batteries are designed for repeated deep discharge but the deeper the discharge cycle, the fewer the cycles in its lifetime. Lithium based battery chemistries don't suffer as much from this.
The highest current draw from the batteries will happen when starting the vehicle moving, worst case would be starting on a hill. Electric motors get immediate torgue - there's no rev up required like an ICE. The draw is not 1/1000 of the battery capacity unless you have a tractor trailer load of them - its more like an average of 200 watt-hours/mile.
"And once the vehicle is in operation, the continual discharge of the batteries will generate a substantial amount of heat, internally. The sheer mass of the lead-acid batteries will keep the normally generated heat from easily escaping, provided they aren't mounted externally, directly in normal airflow."
And when you're parked all day at work in the winter, I hope your employer will let you plug in to keep your batteries charged and warm.
I'm totally in favor of electric vehicles and am in fact building my own now but get your facts straight before trying to be an advocate or you are just adding to the marketing hype that's already too prevalent.
Screw the production. If we figure out storage, then production will come all over. You can bet on it that nukes AND AE will be built as fast as possible. That is why I would love to see us use SMALL solar thermal COMBINED with salt storage as storage in cities. You figure that in the nighttime, it can take excess power and store it as heat. When the storage is getting hot, then skip using solar. By doing this on say 1 mile grids, it would allow us to decouple homes from the power. In fact, if done correctly, the small storage/grid approach could lead to new small business.
I prefer the "u" in honour as it seems to be missing these days.
Actually if you look at any site focused on doing EV conversions, you will see mention of lead acid battery heaters for colder climates. I imagine those people know what they are talking about, as I doubt they would want to waste battery energy on heating the batteries if it was not absolutely necessary.
Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
Salt storage isn't something that scales down well; it's used by solar thermal plants, not solar voltiac cells. You wouldn't be placing this every mile, you'd be keeping it at the solar plant.
In my combined vision for the future I figure a couple things:
1. Plug in Hybrids/EVs will have a far greater role.
2. Due to expense/savings, many/most home charging stations will have load leveling capabilities.
3. Putting a PHEV/EV in a garage will swamp all but the most extreme energy saving measures otherwise taken. The tesla roadster has a 53kwh battery, and uses 28 kwh per 100 miles. 3.57 miles/kwh. Figure an annual average driving distance of 15000 miles, that's 4.2K kwh/year, 350 kwh/month. About 50% of the average annual usage of households in the USA(8,900 kwh/year. Keep in mind that the Tesla is light and efficient compared to most EVs due to it's sports car heritage and LiIon batteries. Oh, and that most families at this point have 2 or more vehicles.
A - Given 1&3, More generating capacity will be needed, not less, even if our population remains stable.
B - Given A&2, the difference between peak and baseload should shrink.
C - Despite 3, energy saving and leveling measures should be taken where practical.
D - Despite what realtors tell us, homes DON'T always increase in value. It's mostly the land the house sits on. At some point it's worth it to tear the sucker down and build a *GOOD* house on the plot. Good today = energy efficient. All sorts of tricks are possible with a new house that aren't possible or practical with an old one. But I'd put a dryer(30A@220V) or even stove(50A) plug into the garage.
E - Save the oil/NG for building materials and long range high speed travel.
Get people off of direct electric heat and towards geothermal heat pumps. Interesting tidbit - did you know that heat pump water heaters are produced? They'll cool and dehumidify the air around the hot water tank while heating the water. Cost is around a third that of direct electric. They've also developed heat pump dryers - they need a line to a drain like the washer, but use substantially less electricity and dry clothes faster with less heat. If I was running a laundrymat in a trustworthy area, I'd seriously consider them - not only would it reduce my expenses with the dryers, it'd also reduce the amount of AC needed.
I figure lots of solar in areas where peak demand tends to coincide with peak sun, wind in the appropriate areas, all backed up by a ton of nuclear capacity - and nuclear CAN load level; they're generally run at max capacity because they're the cheapest source of demand electricty going. Spreading solar out is pretty much required; in my area putting a wind turbine up next to/in a lot of the small towns would reduce the amount of electricity lost on wires.
I don't read AC A human right
I think it's interesting that the whole electric vehicle debate has shifted in the last year away from the issue of how to store a reasonable amount of power in a vehicle.
What I hear now is "but it takes 8/12/x hours to recharge!".
This issue does not seem to be down to the battery technology available today, rather it is due the fact that you simply cannot pull enough power out of a standard domestic circuit to recharge these vehicles in a reasonable time.
This isn't hard to see: If you have a 50KWh power pack in your vehicle and you want to charge it in 6 minutes then you need a 1/2 Megawatt supply. A standard 50Amp/240 V supply will deliver about 12KW (or 0.012MW). Go figure.
Megawatt rated power supplies are not rocket science (most electric trains operate at this level) However the cost of installing such a supply at home is likely to be prohibitive for most users (especially if you only need it for a few minutes a week).
I predict that we will shortly see the rise of the "electric filling station" equipped with the kind of power infrastructure that can be optimised to deliver Megawatt-level loads into electric cars.
well someone please tell the tree huggers or you won't have that supply, we are currently using up our nuclear reserves quickly and they are trying to kill the one place that we know of with enough supply http://en.wikipedia.org/wiki/Olympic_Dam,_South_Australia. Check out the related links at the bottom for all the reasons they try to kill mining at the one place needed to try and keep a realistic nuclear powered future alive.
Lead acid batteries lose capacity as they are cooled below the standard temperature of 25 C, about 50% of their capacity by -27 C, and freeze (with usually permanent damage) at about -50 C when fully charged, and at higher temperatures when partially discharged.
As far as I know, lead acid batteries do better at cold temperatures than anything else.
This information gleaned from actual field experience in Antarctica.
auto does seam to be a feature heavily encouraged by manufactures, I assume because you cant grenade the engine in one shift, and they have higher maintenance that is heavy dealer profit (and not under warranty.) So they publish only the standard specs that show similar performance and economy. Economy is from optimal shifting in a auto that is not taught for manual (rules changed with EFI, carburetor teachings persist). Performance shown is 0-60, mostly because trans losses don't matter in the critical 0-20, and responsiveness isn't tested.
Especially for towing I could tow the same with the smaller engine and a manual, or the larger engine and auto + extra towing cooler + $500/year increased maintenance + 50% less economy + 1/2 or less lifetime of trans.
Coal pollution is so bad, that a recent Wired article says that auto emissions are negligible in comparison.
And don't give me "rent one when you need one", either
Why not?
Because renting costs something more precious than money: Vacation time.
It costs it in the time consumed to rent, pick up, refuel, and drop off the car.
And it costs it in risk: That the car won't be there, won't operate properly or will break down, will be unsuitable, poorly cleaned, etc. When it's your car these are under your control. When it's an agency's car it's under theirs. (Even if the failure probabilities are the same the aggravation level is higher when a rented car fails.)
Vacation time is precious. Typical workers get two weeks of vacation and fifty of work - so multiply the daily pay by 25 to get a cost estimate. Subjective quality-of-life losses from shaving the vacation to rent the car may be higher.
Quality of life suffers in other ways, too. Like the weekenders you might take if you can just throw the bags in the car and go, which you won't if you have to deal with Avis or Hertz.
I could go on. But the point is that the "rent it when you need more range" so-called "solution" has unacceptable costs for some consumers.
And the OTHER point is that, if it can meet a few simple performance targets, a plug-in hybrid COULD completely replace the passenger car for many users - and thus be a big market winner. But the manufacturers, so far, are wearing their "commuter" and "eco-nut" blinders, building low-range, low performance, flat-terrain cars, and not yet aiming for those targets.
Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
ouch. Heating up the torque converter with the extra load costs that much?
Support my political activism on Patreon.
This guy modified his honda civic to achieve .17 Cd and now he gets 95mpg at 65 mph:
http://www.aerocivic.com/
We have the best government that money can buy.
not really, under load you lose 15-25% of the power to the auto transmission. (some in the transmission, + the extra fans to cool the transmission) But then I would have to get a 20% bigger engine to get the same towing performance as a manual... maybe 50% is a little exaggeration, I get 50% better economy from my 6 cylinder towing than my brothers 8 on the same trailer (10mpg to 15 mpg) but he can definitely pull the hill faster because he has more than the required 125% HP. is more like 15% when not towing (17 vs 20MPG) But I have noticed if I shift like his, example: pulling empty down hill his auto unlocks the gear and engine turns under 1200RPM, if I shift in N every time down hills, I get 22MPG not 20, but who wants to do that every hill, light, speed zone, etc?
It's the 10 minute recharging in the spec that is frightening. Slow charging would be difficult, but doable.
SirWired
Crunching some quick numbers, and assuming a car about as economical as the published specs for the volt, charging a two 100-mile battery packs at once (needed for a commercial station) in 10 minutes would require approx 1300 Amps at 210V. Now I know that the voltage would not be stepped down that low at the curb, but that should give you an idea of how inconceivable that stress on the grid would be. Yes, every factory has a feed that large, but there are a heck of a lot more cars than factories. And a 100-mile range is nothing. Could you imagine every long-haul car on I-95 pulling that kind of load every hour and a half during the day?
In any case, that 10-minute number for batteries sounds pretty suspect. For a cap bank, maybe, but not batteries. They'd catch on fire without some super-elaborate cooling setup.
SirWired
Just a thought on the Aero EV but has anyone calculated how a household 110 volt, or even 220 for that matter of fact can recharge an over 1000hp EV in 10 mn? Something doesn't add up.
As far as the lithium vs lead acid base battery debate, there is room for everyone. Read John Petersen's posts on Seeking Alpha to see that lead acid base are improving. Our take is hybrid batteries, lithium and or lead acid/gel, etc with ultracapacitators.
Nick
electricnick.com
I agree that home charging is quite feasible, at least after major upgrades to the grid in general. (The grid simply does not have enough current reserve capacity to meet more than a fraction of our transportation needs.) The only point I was making was that those advertised recharging specs were completely pulled out of thin air. There is simply no way they have developed a 100-mile battery that can take a charge in ten minutes. Ultracapacitor bank, maybe, but not a battery. At least not outside of a lab with a cryogenic plant to keep the battery from exploding.
To me, this simple fact makes the whole article suspect.
Also, if charging a car took ten minutes, (twice as long as gassing it), a normal eight-pump station along a long-haul route is going to need about 48 chargers. (Twice as to charge long vs. filling a tank, 1/3 the range as gasoline.) That's a 13MW feed for one piddly little quickie-mart along an interstate. A larger gas station like the kind commonly found along major routes (again, long-haul routes where trickle charging isn't going to be an option) could easily require three times as much. A 39MW feed for one gas station, easily!
There isn't any practical solution for this obvious problem any time soon, which is why I think hybrids are going to be it for the forseeable future. (Or maybe people will own a EV for commuting, and rent a hybrid or conventional vehicle for long trips...)
SirWired
Wow, you and the DOE are so wrong....
A coal (read carbon) burning plant emits three(3) times the amount of CO2 as a gas one (read hydrocarbons).
At 90% efficiency for the electric motor, you loss 10%. Add another 10% loss in the battery charge/discharge (not bad really). 28% average transmission loss for grid distribution. Wow you have already lost almost 50%, lets hope generation is better.
A typical coal power plant is a little over 40% efficient. But it belches out 3 times the amount of CO2.
Can we get a refund from whoever did this DOE study?
Can't believe the mods let you get away with baseless assertions and misinformation. In fact a number of your assertions are wildly inaccurate.
First, it's a cold hard fact that the amps a battery can deliver (amps, not volts) goes down as temperature decreases. So even if the engine wasn't stiff and cold, the amount of amps available for cranking is much lower. The UPS simply cannot provide backup power nearly as long under very cold conditions as it can during warm conditions. True a battery warms up (pretty dramatically) as current is drawn, but if the temperatures are such that current is simply unavailable (witnessed by voltage drop), then it's going to have a problem getting warm since it can't enter operation, or takes longer to do so.
Your assertion than an electric car would draw only 1/1000 the capacity of the battery continuously is prove-ably absurd. Furthermore electric cars are probably much, much, harder on the battery duty-cycle-wise. Unlike cars which draw massive amps periodically and stay charged the rest of the time, an electric car is going to pull moderate to high amps continuously, and cycle the batteries much more deeply.
We can prove that your 1/1000 number is pulled out the air. Basically what you are saying is that if we take the batteries rating, say x Amp-hours, and divide it by 1/1000 amps, then we're left with a total runtime of 1000x hours of operation! Pretty impressive. Either a very very very small and efficient battery, or else the car is packing a couple of orders of magnitude more battery than it needs.
Coming at it from the other direction, if we expect a car that can operate continuously for 6 hours at some particular amp draw, then we end up with something like an expected amp draw of 1/6x amps. Quite a ways off of 1/1000x! So no. Sorry. The amp draw cannot possibly be as low as 1/1000x amps. I believe it more likely that current electric cars can probably only cruise for 4 hours, so the amp draw has to be even higher. We could probably take the current distance estimates and divide by speed to calculate that.
So please, before you accuse me of trying to be an expert and making baseless assertions that I apparently know nothing about, try to get your own facts straight. I am interested to know what cold weather testing auto makers have done on electric cars. So far I can't find any information on this.
Oops. Units got messed up a bit there. You're SWAG of 1/1000 results in 1000 hours, period. The variable, the capacity of the battery, drops off completely, leaving only hours behind. Hence the reciprocal of the fraction of the batteries capacity one is using is the number of hours one expects to draw that current. But average amp draw is 1/h * x where h is the number of hours you actually get from the battery (for simplicity we'll say at a constant draw meaning a certain cruising speed) and x is the capacity of the battery in amp hours.