Then theres the whole back emf thing.
That is where you lost me.
However is the explanation I might be looking for.
This is what I think.
I think that if two identical motors factory built and BRAND new with the exact same length of the phase wires for the same resistance that it would work paralleling the phase wires to a sensor less controller.
The reason why the two Bafang motors wont work is they are both used motors and have slightly different specs. as they do not have the same wear and tear or miles. Also I used different length wires for the phase connections which means the resistance is slightly different going to each motor.
That is my hypothesis. However any further information like what emf is by definition is appreciated.
I have to deposit some funds to order two 18 amp greentime controllers. I ordered a cheap 12 amp but am thinking I will use it for test purposes as the little 350 watt controller with the speed knob showed no sign of life at all.
A waste of money and am not bothering to return it. I might get into drones , robotics and RC motors. It could just be the phase wires are different but do not like playing around with phase or sensor wires.
I have two 16 amp controllers that are not sensor less which wont work at all. I guess if I felt like switching sensor wires around I could get it to work but could damage the motor. I would need a factory spec. sheet explaining the sensor wiring diagram. I am surprised and disenchanted that the 9 pin motor wire adapter failed to get the sensor wires correct.
Not sure why either. There must be more than one hub motor manufacturer that uses the 9 pin motor wire. I thought it was just Bafang but if that were the case than the Bafang motor should have worked with at least one of the sensored controllers I hooked up to it which was three different controllers.
1.) the 36V brushless controller DAN sent.
2.) the e bikeling controller I spent 50 bucks on and 30 for a display module I smashed with a hammer after it failed miserably.
3.) the 16 amp sensored controllers also 16 amps I ordered from Wish.com.
Obviously all those controllers can not be faulty so the blame has to be on the two 9 pin motor wire that plugs into the motors. One was on the e bikeling controller I smashed as I cut it off before throwing the smashed controller out. The second was a 9 pin extension wire commonly found online that extends a 9 pin motor wire and is supposed to enable use with a non display controller which don't have a 9 pin motor wire.
They are selling these WRONG 9 pin wires which are obviously NOT compatible with Bafang motors online and they need to either stop selling them or start producing them with the correct sensor wires so they will work with Bafang motors.
There are 5 sensor wires so a lot of different possible wires to switch around. I am not doing it unless I know exactly which wires that need to be switched. I am not doing trial and error but would really like the answer as I have three possible sensored controllers I can not use and am spending more money on sensor less controllers when I should NOT have to.
I build e bikes. There not always pretty or practical but sometimes they work, at least for awhile. Immortality is not a dream but the future of our evolution. We were given the tools to forge our own destiny. We were created in gods image and shall evolve to live forever.