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Yeah, James, I actually thought about that one too...
You can get about 1300watts per outlet.
To charge a 50kWh pack in 10 minutes you need 300,000watts.
So 230 extension cords, give or take...
SSC Announces Electric Powertrain and Ultimate Aero EV Specifications
WEST RICHLAND, WA (01/22/2009)
Shelby SuperCars (SSC) released today the details of its revolutionary All-Electric Scalable Powertrain, the AESP. SSC will incorporate its AESP into thecurrent Ultimate Aero to create the Ultimate Aero EV. Being the "World's Fastest Production Car," SSC decided the Ultimate Aero to be the perfect high visibility outlet to demonstrate the capabilities of its new Green powertrain. Directly following the debut of the Ultimate Aero EV, SSC will conduct a live media event to showcase the capabilities of its revolutionary Green powertrain.
SSC will display its AESP in the Ultimate Aero EV in order to prove that electric-powered vehicles will not only match but also provide more linear power (electric motors have 100% torque at 0 RPM) and overall performance than internal combustion cars. The Ultimate Aero EV utilizes a twin motor AESP producing an astounding 1,000 HP and 800 lb-ft of torque enabling it to rocket to 60 mph in a mere 2.5 seconds and reach a top speed of 208 mph. Not only does the Ultimate Aero EV have a range of 150-200 miles on a single charge, but SSC's "Charge on the RunTM" onboard charging system allows for 10 minute full battery recharges on a 220 outlet. SSC's 3-speed automatic transmission transfers the Ultimate Aero EV's power to its wheels and achieves electronically controlled shift times of .24 s. The entire AESP is liquid cooled allowing it to run for extended periods of time at peak performance with no overheating issues.
SSC's Green division, SSC Green, Inc., will provide packaged solutions of its AESP to a wide variety of applications ranging from 200 horsepower for economy and midsize cars, to 500 horsepower for light trucks and SUVs, and up to 1,200 horsepower for delivery trucks, heavy-duty equipment, buses and military vehicles.
SSC expects to roll out its first full-scale, pre-production Ultimate Aero EV in second quarter 2009. Ultimate Aero EV deliveries will start as early as fourth quarter 2009. SSC will pursue the title of "World's Fastest Production Electric Car" and conduct a marketing campaign consisting of international motor shows, magazine articles, TV appearances and live media events. Most importantly, SSC will conduct a live media event at one of America's superspeedways to prove its claims. During this event SSC Founder and Lead Designer, Jerod Shelby, and notable guests will drive laps at high speed pitting only to demonstrate the quick recharge times. SSC asks any interested media to send a request to [email protected].
SSC's 3-speed automatic transmission transfers the Ultimate Aero EV's power to its wheels and achieves electronically controlled shift times of .24 s.
Mechanical engineering - full marks
Not only does the Ultimate Aero EV have a range of 150-200 miles on a single charge, but SSC's "Charge on the RunTM" onboard charging system allows for 10 minute full battery recharges on a 220 outlet.
Not only does the Ultimate Aero EV have a range of 150-200 miles on a single charge, but SSC's "Charge on the RunTM" onboard charging system allows for 10 minute full battery recharges on a 220V service.
OK, so they finally put a "V" in there, but now it is 220V instead of 110.
And they don't say anything about amps. For a moment, lets say that the car is highly efficient and they only need a 30kWh pack. That's still 180,000 watts for a 10 minute full charge. At 220V that's 818amps.
Back to 10 minute quick charge... Where do they propose you will find those charge spots? What sort of cable are they talking about? Note this picture showing a prototype BYD F3 with both normal and quick charge sockets:
(We are talking mammoth cable to support quick charge)
PosiCharge ELT is the workhorse of the lineup, powering the
hardest-working fleets in some of the largest companies in the
world with up to 600 amps.
MODEL ELT 600
POWER RATING 36kW
UTILITY REQUIREMENTS* 480VAC, 3 PHASE
FULL LOAD AMP DRAW 60A
Note: they have 600VAC and 240VAC version also, but output kW is similar.MODEL 680+
POWER RATING 30kW
UTILITY REQUIREMENTS 480VAC, 3 PHASE
FULL LOAD AMP DRAW 48A
http://www.pagnet.org/Documents/Committees/CleanCities/CleanCities-2008-09-24-AeroVironment.pdfINPUT RATING 3 Phase, 480Vrms,
CURRENT 335Arms
(page 13)
Fast Charge, 10 minutes, 100% SOC - 125kW (small sedan), 250kw (SUV/Sedan), 500kW (heavy duty)
250kW EV Charger – Specifications
Input Voltage: 3phase 400VAC- 600VAC
AeroVironment, Inc.: EV Test Systems: AV-900/900CE DetailTechnical Issues:
Developing a Level 3 connector that meets physical constraints while
also meeting functional requirements
250kW EV Charger – Specifications
Input Voltage: 3phase 400VAC- 600VAChttp://www.autobloggreen.com/2007/0...ssfully-quick-charges-altair-nanotechnologie/
... What's wildly, insanely not plausible, and is in fact a monstrous load of fertilizer, is the claim that you could recharge such a battery in 10 minutes on household current. For that you would need to plug into 300 kilowatts, or 0.3 megawatt, roughly the equivalent of a small neighborhood substation.
"You'd have to have a pretty big cable," Gage says. "What they are talking about has absolutely no relation to household current. It's completely bogus." I repeatedly tried to contact SSC, with no luck.
...
Late on Thursday, however, journalists received a cryptic e-mail from the company, with this passage: "There was a premature release that was leaked yesterday, if there were posts made based on this release, there is one major change that needs to be made. The 10 minute recharges are possible via a 220v outlet NOT a 110v outlet. In addition, there are a few new items in this official release including an email address to register for our media event. I apologize for any inconvenience this may have caused anyone."
All well and good. SSC seems to want to walk back its wild claim. However, 220V doesn't help much. At 220V and -- oh, let's say 30 amps -- that's 6,600 watts. You would STILL need nearly eight hours to recharge a 50kWh battery. The 10-minute figure is, let's say, highly fanciful. And, just as a PS: SSC promises the battery will last 20 years. Do I hear 50? Why not 100?