Is there a way for you to verify the drive can regulate zero speed?
I wonder if you could have a drive offset problem. I am just basing this off of general drive principals but the car has to be able to hold zero speed long enough for the brake to set. Is there a way you can put a scope on a current feedback circuit and verify you are not getting a spike in current as the car stops due to noise induced by a poorly suppressed relay coil collapsing?
