Originally Posted by Mr. Fisherman
Maybe a pulse width modulator?
That's basically what most brushed DC motor controllers do.
Stolen from the DIYELECTRICCAR.COM forum:
Old hot rod saying...
"How fast do you want to go? How much money do you have?"
New EV saying.......
"How far do you want to go? How much money do you have?"
I guess some things never change
... and they have endless perpetual motion threads there
I'm curious about the lack of BLDC motors in this size range. They seem simpler than brushed DC motors, but the big ones available are frighteningly expensive. The Controllers for them are expensive too.
I need to re-check but I don't think either Brammo, or the other one (Zerocycle?) are using brushless. Kinda' makes you go hmmmmmmm.