[Mr. Lim]

Originally Posted by Ether

OK CD community: What's the underlying physical explanation for why this happens?

@Mr Lim: Just to eliminate one possibility: Are you certain the brake/coast settings were identical on all controllers?

I'd like to hear an explanation for this one. Although I'd have to check the PWM / Voltage curves more carefully, my guess is because the Jags have a more linear response, in general for any given PWM signal they would produce a higher (magnitude) voltage than a Victor, except for at the extremes, where they would be the same (Vbatt).

Yes, I am certain both would have been on coast.

Our drivetrain runs open loop most of the time, and we do check that all speed controllers on it are specifically set to coast.