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Old 04-09-2009, 05:19 PM   #826 (permalink)
bennelson
EV test pilot
 
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Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
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My ammeter shunt is in series in the string of batteries, so I am measuring battery amps. I always felt that's the number to watch, because the batteries care a lot more about how many amps you pull than the motor does!

Anyone have a spare analog 500 amp ammeter kicking around? Mine only goes to 300!

I think I am starting to get why it only does wierd stuff at low speeds.

Once the car gets going, it's pretty slick in either second or third gear. Both have really nice acceleration and a good speed range.

Clean up the signal to smooth out acceleration and max out the amperage, and THIS IS GOING TO BE ONE NICE CONTROLLER!

The heat sink does get a little warm while in use. My 72V Curtis never got warm, but it only had half as much power going through it!

Also, I haven't hooked up that 12V computer fan to it either. I plan on that this weekend.

Or better yet, just cut a whole in the hood. That way I can show off the controller AND keep it cool!
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