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tango..

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arc

this is where i stand
Parked in the garage
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0 to 60 MPH, about 4 seconds. 1/4 mile time about 12 seconds at a speed of approx. 120 MPH
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http://www.commutercars.com/

oh yeah, electric car too
 
it says this too tho

Note: Projected performance specifications may vary somewhat depending on final weight and batteries used. Acceleration figures assume racing slicks are used on a drag strip
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0 to 60 MPH, about 4 seconds. 1/4 mile time about 12 seconds at a speed of approximately 120 MPH. These figures are based on comparisons with other cars that hold official records with NEDRA (National Electric Drag Racing Association). Calculations have taken weight, motor torque, controller, voltage, gear ratio, and traction into consideration. They assume that racing slicks are fitted and driven on a drag strip with good traction conditions.
Click to expand...
 
Quite expensive if you look at the 4second car price at 89k considering at the end of the day you have to charge it up! It also seems they are having trouble getting finance for the venture to make them properly.

They look stupid but cool. As I understand it, I really don't know, but isn't it true that electric motors can have stupidly high torque?
 
I thought it was the opposite they're all speed and no power - it seems I was wrong!
 
yeah, they do. (torquey that is)

charging isnt an issue, like it says - its a commuter car, and the average trip to work and over there is 20miles.. so no real problem.

i wanna see proper figures for it tho, not calculated ones!
 
Yep, the big benefit of 'leccy motors is (a) immense torque and (b) most of that torque is available from 0rpm.
The site doesn't give very detailed figures for the motors, but it claims 1000lb ft from "low rpms" and the motor controller can deliver up to 2000A@300V giving 600KW (assuming the motors are rated to that power level). Thats roughly 800bhp! No wonder it shifts. And it'd look cool if it wasn't for those ridiculous headlights :rolleyes:
Yes you have to charge it up, but you don't have to put petrol in it! The price is steep but then again 600KW electric drive systems ain't cheap to make.
 
I only know from scrap heap challenge because I think they made a train and used golf cart motors (!!!!!) and I thought they said:

"the benefit of the electric motors is that they have good low down torque"

See that's where it causes me problems arc, if you want something to ONLY commute on get a scooter/quad bike etc. and have a proper car for anything else, why pay up to $90k for a electric car? (before anybody says; environment, remember where the power comes from in the first place).

I guess I can see the attraction, you get a roof, decent speeds etc. so the above is very one sided.
 
JB, petrol is great though, VERY high energy density and it takes only a minute or two to refuel for hours of driving, this thing will use the power a lot quicker than you can fill it up.

Damn batteries!
 
yeah.. people tend forget where electricity comes from.. claiming zero pollution.. rather than it just moves it somewhere they can't see.

would be interesting to see how efficent it is vs a petrol engine. starting at the begining for electricity (coal, nuclear etc) and how much is lost through the grid etc.

speaking of scrap heap, remeber wacky races is on tonight at 6.30. and the WRC is on at 3.20 ish
 
Hmmm... I'm deeply sad and I've had a shufty around Google for a bit more info. Those motors are only rated to 900A each and thats at 120V, with power output quoted as 84bhp each. The max voltage rating is 144V. So they won't last long with a pair of them running 2000A@300V (i.e. 1000A each).
What I think the company have done is massively overdrive the motors to get their 4-second figure, and the customer cars have probably got a voltage and current limit.
 
Wll remember scrapy races :D

I once had a run down of which is more efficient right from the fuel stage but I can't for the live of me remember which won (tbh I expect the electric car because a power station should be a lot more efficient than a car at using energy, you would hope anyway). It was in my A level stuff which is at home too :(
 
yeah paul, but when you consider how much is lost through the electricity distribution system, and all the transformers.. they're oil cooled so they must be kicking out some waste!
 
arc said:
yeah paul, but when you consider how much is lost through the electricity distribution system, and all the transformers.. they're oil cooled so they must be kicking out some waste!
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Yes I agree, not found anything yet other than a poor students attempt at Bath:

http://students.bath.ac.uk/en1jj/electric.htm

Nothing factual except him wrote the same thing as me.


I do love this though: (electricly powered bike more efficient in terms of carbon emissions than human pedalling!)

http://www.evworld.com/archives/reports/ebikes_vale.html
 
I like the closing comment, that if you, as a person, want to be more efficient than an electric bike whilst cycling, you need to eat only raw cabbage! lol

Electricity = 25wattHrs/km
Pedalling = 60wattHrs/km,

haha!
 
I apologise for going a little OT just thought you might be amused by a few of these (found from a link off your page arc):

Is it illegal to use my cellular telephone while I'm driving?
Present California law does not prohibit the use of a wireless telephone while operating a
vehicle. However, the CHP recommends common sense in its use and we urge users to
familiarize themselves with their cellular telephone features and follow these tips:
If possible, dial while the car is not in motion, such as at a traffic light or stop sign.
Learn to operate the phone without looking at it.
Never allow a phone conversation to distract you from driving.
Keep calls brief.
While talking, keep your head up and your eyes on the road, with frequent checks of side
and rearview mirrors.
Use a hands-free device when available.
Don't take notes or look up phone numbers while driving.
If you must check information, arrange to call back and do your research while the car is
safely stopped.
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I'm pregnant. The HOV lane requires two persons in a vehicle. Now that I'm eating for two, can
I use this lane?
California law requires that in order to utilize the HOV lane, there must be two (or, if posted,
three) separate individuals occupying seats in a vehicle. Until your "passenger" is capable of
riding in his or her own seat, you cannot count them.
Click to expand...

The second is a joke surely?! A pregnant woman wanting to use a car lane that's meant for a minimum of two people!
 
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