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Hub motor e-bike not recognized

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olivierskypullc...
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Hub motor e-bike not recognized

Hello everyone,

I have an e-bike whose controller is broken so I am thinking to replace it with a VESC 6 I have. The problem is I cannot get it pass detection. In BLDC auto detection it stutters, then beep and I get a detection failed error. The motor is an ABB 3-permanent magnet AC synchronous motor, wired in star configuration. I connected the neutral to the - of the battery. Its nominal power is 250W.

What can I do to make it pass detection ? I tried increasing duty cycle and current, it didn't worked.

Thanks in advance !

Olivier

benjamin
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The neutral of the motor should not be connected anywhere. Connecting it will definitely cause problems.

olivierskypullc...
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Thank you so much, I've tested it and it worked ! I was a bit confused by the ground and neutral definition, but it works ! Thanks again !

Ampit
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<p>hey there. I just thought I would ask since you have been down this road. I have a geared 1500w rated e-bike hub motor and I rarely get it past decetion ( usually says IO have a short or ABD current over limit check to make sure its sensible. ) this is a 1KG motor the heaviest or most powerful geared e-bike hub motor anyway. 30 poles, 20' wheels&nbsp;I am not sure what to do here. it usually shudders back and forth. i been down this road before with grin tech's phasrunner so I kinda have a clue. not very familiar with duty cycle at all. on the FOC setup where you pick your motor... mine is heavier than 6kg like the picture has, should I pick the heavier outrunner. my resistance and inductance seems way heigher thatn I remember seeinbg when I would run autotune ( decetion ) whith the phaserunner.