If they're that short, that suggests to me that it's not much of a dyno - probably just one of those flywheel machines that can't apply a sustained load. Unless you're assessing performance specifically for drag racing, I'm not sure how useful this will be, and all data will be peak values rather than continuous.
Well, it will be continuous acceleration data
FWIW I Wasn't suggesting different voltages (i.e. change pack voltage), just different motor current levels. i.e. a run at 2000 amps (probably gotta limit the pack above 1000 rpm), 1500, 1000, 500, 100. I don't expect any surprises, just something of an efficiency map in the data. Or to keep it simple, just different throttle settings. Oh don't forget to capture throttle setting.
Sure, that would probably be easier to manage, and achieves the same result of covering the range of operating conditions. Different motor current (at the same speed) will mean different motor voltages (at that same speed)... and of course I did mean motor voltage, not pack voltage; why would anyone change the pack to test the motor? That would be like changing the entire fuel and induction systems of an engine instead of just running at part-throttle.
I don't know, that is why I made the correction to motor CURRENT (~throttle/torque) not voltage. The current is what is being controlled, so why would you suggest controlling the motor voltage?
It's not a correction, since there was nothing incorrect; however, since you're still beating the dead horse with essentially the same remark, the answer is the same:
Again...
I didn't suggest that, because it is stupid.
I'm still in Europe. I won't be able to get it before January.
John, I'm in the Ft. Hood area, an hour north of Austin. Unfortunately I still haven't been paid from my last deployment, so I still don't have batteries to test with.
