Guru
Joined: 15/07/2006
Location: AustraliaPosts: 676
| Posted: 09:05am 25 Jan 2011 |
I have done some acceleration testing for the WarP 11 motor. I can take off in 3rd gear and keep up with regular traffic. But here are the numbers.
0-60km/hr 9 seconds
0-80km/hr 17 seconds
0-100km/hr 28 seconds
This is only 1 second better than I got out of the ADC 9 motor.
I then wound up the acceleration rate on the Curtis speed controller, as far as I could. This was the first time to experiment with the acceleration rate. It does not appear to accelerate any faster, but does reduce the lapse time in take up when throttle is applied. So in changing gears the throttle take up time is quicker. It gives a better driving feel. The acceleration rates are a little better.
0-60km/hr 8 seconds
0-80km/hr 15 seconds
0-100km/hr 25 seconds
Range appeared to be better with the bigger motor. Yesterday I did the 100km/hr range test, driving the same road as all other tests. I still managed to get the 100km range. The speedo trip meter does not like to go passed the 100km mark, it jammed again about 4-5km from home. So range travelled was about 104km, using 20.4kw.
Last test I used 21.9kw to do 102km. (just checked old posts, made a mistake in the distance travelled, written 202km, should be 102km). So while it is not much, the WarP 11 is better for efficiency, than the ADC 9, in this vehicle at 100km/hr.
The batteries are wearing down. The 100km is all I could get driving mostly at the 100km/hr. There is still power in the batteries to drive slower, but I don't imagine it would be much. 20kw could be considered capacity now. These batteries were fitted with speedo reading 350153. So with current reading 389267 - 350153 = 39114 km travelled.
So for the way Bruce wanted it to be calculated....... (good on ya Bruce - great fella).
Battery cost is $1.80/ah x 45 cells x 200ah = $16,200 (price when fitted).
$16,200 / 39114km = $0.41 cents /km, but they are still not dead yet. The 20kw is still plenty for my daily driving, which uses around 16kw.
Of course the selling price for Thundersky at the moment is $1.52/ah. (Good time to buy).
If this were the price then, $1.52/ah x 45 cells x 200ah = $13680
$13680 / 39114km = 0.35 cents per km.
Trev @ drivebynature.com