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Old 08-27-2009, 03:33 PM   #8 (permalink)
Clev
Wannabe greenie
 
Join Date: Aug 2008
Location: Yorba Linda, CA
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Quote:
Originally Posted by droptail View Post
Thanks for the info Clev. I actually have considered the retractable motor solution, and still am. Also a chain drive to the drive shaft, and some other stuff. I am new to all this and still need to understand how the motors function with respect to free spinning, rpm capacities, drive through capability, etc.

Originally interested in regen, but seems 10% recoup doesn't justify cost and complexity.

Is there a source to calculate acceleration given weight and power? This will be my primary design criteria. I need to be able to have reasonable accell in S&G traffic, prob something like 0 - 35mph in maybe 15 secs, for 15 - 20 miles. I need to time it. Everything else will follow.
If you were building a straight EV, I would say that 0-35 in 15 seconds and 15-20 miles is pretty straightforward. You may want to also post to the EVDL (The Electric Vehicle Discussion List). They are really the source for building EVs.
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