It has to be the sensor wires are wrong.
I found a possible solution on a electric bike forum different than this one.
However his solution is to switch phase wires around. That makes no sense to me as the phase wires have to be right or the motors would not work with a sensor less controller.
Therefore I am NOT wanting to try it at all. I was hoping there is a way to know exactly which sensor wires need to be switched. There must be a way to know. I was thinking as popular as these Bafang motors are that someone else somewhere must have run into the same dilemma.
There's some chance that the Hall sensors are faulty in your motors, but it's not likely that they'd both be faulty in the same way.
That is possible but would it still work with a sensor less controller ?
I dont know what that video was to show. I see your front wheel is a tad wobbly but its nothing, I've ridden worse.
Sound seemed alright.
The clunking you typed out, but I did not hear in your video might be a mismatched combo in phase but your using sensorless. Could be a tire rubbing, bike rocking back and forth due to wobbly wheel.
Dont know why your controllers dont work with Bafang motor, could just be single defective in any one of a few area's. You might have fried throttle components inside the controller, you could have toasted some fets that dont show any defects or smells, you could have been sold defective but dont go blaming them because you have no idea whats wrong or how they were damaged. Thats why its best to know what your doing from the get go, and do things slowly and precisely in a calm, sober state of mind.
Have you done the mosfet check for the controllers?
Checked your throttle?
It seems like it is working great in the video with both motors hooked to the greentime controller but you can not hear the noise in the video. With just a little throttle it sounds fine but when I press the throttle about half way you hear a deep bass type of rumbling which is too much current or one motor is just slightly off as the resistance is slightly different as both wires are not exactly the same length. Or it could be they have different miles and wear and tear.
I was just curious if it coud be done and I was right. You can hook to identical hub motors to a single controller to test them but NOT to run them under load. It is why I ordered two 18 amp Greentime sensorless controllers but am not happy about waiting a month or longer to get them.
Also Chalo. They make many different Bafang motors. It is why I posted those pictures of the model numbers on my two motors. Are your motors the same model. It is possible Bafang changed the wires around for different models.
I would be willing to bet a decent amount of money that the sensor wires are different with my motors. I would also be willing to bet that someone knows exactly which sensor wires need to be switched.
I also would place a bet that messing with the phase wires like the guy who posted that diagram would be a terrible idea as both hub motors do work with a sensorless controller so the phase wires are correct.
I still have not heard from DA.
At this point I would be willing to send someone a free Bafang motor and sensored controller just to find out. I want to know which sensor wires need to be switched around. I guess I could build a 10S - 1P - pack for testing as that way there would be a minimal amount of current. Also as long as I do not mess with the phase wires I should not burn anything out right ?
I am not sure what to do besides waiting around forever for the Green time controllers. I guess I might as well throw out all three sensored controllers as they do not work and doubt I will have any use for them if I can not get them to work with the Bafang motors. This is very frustrating to say the least.
Yea. 36 combinations possible to make it work. That is a lot. I doubt tearing the motor apart will accomplish any thing. If there was a way to speed up shipping I would just hook up the sensorless controllers and call it a day.
I remember several months ago DA told me that the e bikeling controller would work. I hooked it up wrong the first time but was just a throttle plug I was supposed to plug in the 4 to 1 cable and not the cable directly from the controller. I hooked it correctly the second time but just got blinking lights on the display module.
I seriously doubt that damaged the controller. I know that the e bikeling controller DA recommended was the wrong controller. I have lots of proof as after I smashed that controller and the display module (80 bucks down the drain)
I cut off the 9 pin connecter wire which was NOT damaged and proceeded to hook it up to two other controllers and none of them worked.
I also used the other 9 pin wire I ordered together with the 4 to 1 cable DA. recommended and the results were the same. IT DID NOT WORK !!!!!!!!!!!!!!!!!!!!!!!!!!
Obviously one of those 36 possible combinations is the answer as It is not my skills that are in question. It is a simple fact at this point that the sensor wires coming out of BOTH those 9 pin connecters are WRONG !
I really want to know which wires need to be switched around. I am sick of ordering parts that I can never use. I don't want to throw away those two 17 amp controllers I got from Wish.com. I want to make them work so I can finish building the Dimond Back Outlook. Then order 2 or even 4 more Bafang motors.
I would be willing to pay the shipping to and from DAs computer store and throw an envelope with a $50 bill just to find out which hall sensor wires need to be switched around.
I just tried to call Battery Clearing House but is too late. I need to let them know that the Bafang motors they are selling only work with sensor less controllers so other folk don't waste their money on controllers that wont work without trying 36 combinations of sensor wires. I am irate. I feel like going to Wall-Mart and buying a sledge hammer and smashing the Bafang motors and cheap Chinese controllers.
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.