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Alternative to Buying a Controller?

9114 Views 16 Replies 9 Participants Last post by  pyroboy1080
I'm looking for a way to make a cheap and easy to build (by theory) controller.

I've poked around on the forums and really liked the idea of the mechanical PWM controller (
) but it looks like there are too many limitations for an EV application.

This sounds like a dumb question to me, but what the heck. Is there any reason why I can't just put a large potentiometer in series with the batteries and the motor and use that as my throttle to control the power output?

Have there been any other feasible attempts to build a simple (DC motor only) controller for EV applications?

My specialty is ME, not EE so try to explain it in a way that will make sense to me! :D
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· Registered
10 Posts
Well, If you absolutely want to have mechanical controller why don't you do like the Prius?
Partially uses an electric motor(PM), generator and planetary gear and by controlling felid on generator (small current) to get the wished power. :)
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