Quote:
Originally Posted by Piotrsko
Averaging or many fast samples. possibly capacitive smoothing on batteries.
If the pedal is floored with heavy pressure, current should slowly trend down as I hit bemf. The digital shows anywhere from 400 to 450 amps, too much current on the shunt for the analog which is pegged.
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That's exactly what happened in my tests. If you look close at the graph in post# 2534, that initial spike is over 400A. The current then ramps down in about 1 second. My control was ON/OFF with a contactor, so it was a very heavy foot - LOL!
For some reason in this graph there was a quick drop in current, which then resumed, following the ramp down trend. I may have let go of the control or something; I'm not sure. The other graphs I have don't have that drop-out anomoly. OTOH, they all spike up and ramp down in about 1 second.
A person can choose faster sample times, I chose this rather course sample time because I was doing longer tests and I was looking at general trends.
- E*clipse