View Single Post
Old 07-08-2011, 12:55 PM   #9 (permalink)
rmay635703
home of the odd vehicles
 
rmay635703's Avatar
 
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,348

Silver - '10 Chevy Cobalt XFE
Thanks: 359
Thanked 672 Times in 503 Posts
I would strongly recommend trying to run her in 1st or 2nd gear and definately run as long as possible in 1st, 2nd, etc.

On my EV when I want to go further I limit max current to either 50 amps, 75 amps or 100 amps depending on how far I still need to go.

I slowly ramp up speed and push the throttle in as I speed up keeping the amps constant. Then once my throttle is to the pedal I let the thing speed up slowly (and its slow) and the top speed ends up 6-8mph faster after some time and my amp draw is much lower, I then move into field reduction since I don't have extra gears.

If I were you with your paticular setup I would accelerate glacially in low gears, the odd part is (at least on my ev) the acceleration is faster than you would expect using the ammeter as a guide to accelerate very slowly at low amps slowly letting the throttle out.

Doing this along with airing up the tires to 50 or 60psi and coasting a lot will dramatically increase your range. I can double or triple my range doing this because of how FLA behaves. Literally a few seconds at 500amps is like a few miles at 200 amps and many miles at 100 amps.

Cheers
Ryan
  Reply With Quote