[ausev] Ive discovered my scooter is over unity!!!

[Chris Robison]

Some questions:

What is the make and model of your scooter? At what points in the system 
are you placing your probes or clips? Can you reproduce the behavior on 
a stand (with the rear wheel raised)?

I could imagine motor regeneration causing temporarily higher voltages, 
but if your 64V pack is "sitting" at 110V after shutting down, I'd guess 
you either have a measurement error or a battery pack that won't last long.

  --chris





Aaron Richardson wrote:
> I put a volt meter on my pack to see how much its sagging under load.  I
> see the resting pack voltage is about 64V (5x12v SLA).  When I
> accelerate the pack sags down to about 55 or so and then climbs as the
> scooter increases speed.  On a freshly charged pack it got to 110V!!
>
> I dont think Im inducing current into my sense wires because the voltage
> goes to 64V when I let off the accelerator and coast at high speed.  It
> seems this voltage it right.  If I shut the scooter off then this is
> where the pack sits.
>
> So, whats causing this voltage and can I trust the sag voltage when the
> scooter is moving very slowly?
>
> thanks,
> Aaron
>
>
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