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Old 01-16-2009, 06:47 PM   #226 (permalink)
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I noticed this the other day:

A Classic EV Design With Advanced Features

Looking at the Urba Electric design, three Controller designs are mentioned-

1) a modern controller
2) a Voltage Stepper-not as efficient but probably cheaper
3) a CVT transmission to keep the motor at most efficient RPM (possibly with a simple Amp limiter-no details on the page)

I don't have a copy of the plans yet(I plead Extreme Poverty at the moment) but i'm really curious on what effect a current CVT (either mechanical or electronic controlled) would have on a light EV...
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