On Jun 22, 2007, at 12:00, [EMAIL PROTECTED]
wrote:
The kelly controller seems pretty inexpensive, just wondering
performance... Money isn't an issue, regen would be nice, but other
models its really spendy.
I think you should buy one so we all have a reference point.
Actually, my bank account is on zero right now after getting new
batteries into my bike otherwise I'd try one of the Kelly's with
regen. There seems some debate as to weather regen on a bike is
practical.
Why wouldn't it be practical? I mean, you're essentially recharging
the batteries and using that to supply some braking as well... is that
correct?
I think the issue with regen on a small less-stable vehicle is likely
to be stability and control.
If the regen came on too quickly it could be like having grabby brakes
only you'd have no lever to release to switch out the regen. Most
systems seem to have the regen switch in when you let off the throttle.
You could grap a handful off throttle to cut off the regen but that
opens up other interesting possibilities in vheicle dynamics.
For a bike I think you'd do better with a twist grip that would let you
ramp up the regen by twisting further away from you just as you ramp up
the acceleration by twisting the throttle towards you.
So the twist grip would have an "off" position (centered by two
springs).
Twisting one way would increase the power to the motor.
As you slowed down you'd return the grip to the "off position" which
should be large enough to allow coasting.
Twisting further the other way would gradually bring the regen in.
Doe any of the modern controllers offer a gradual regen feature?
For a mechanical approach (always my preference) you could try a racer
boy slipper clutch.
Supposed to keep you from locking up the rear wheel on decelleration.
Andrew in Ann Arbor
technology is the answer, what was the question?
