knurf
100 W
- Joined
- Aug 28, 2016
- Messages
- 129
Anyone having problems pushing more than ~50A (battery) to their CYC? I have a first gen and running it sensorless with a castle creations talon 120 and a cycle analyst. This setup, using pass-thru throttle is damn near perfect and would easily replace my dead Tangent drive - if it was just able to push a little more current.
When I load it too much it feels like the motor throws itself in reverse and then forwards again, really fast. The whole bike shakes and sometimes my BMS trips. It only happens when load is higher than say 40-50A. There is no chain or gear slippage, I have a straight chain line, not running small cogs on the casette and all new parts (and I know what chain slip feels like). I just recently switched my sprag clutch to the one used in recent versions but that didn't do anything. I tried gearing it down to get the rpms even higher but that didn't help either. I can't see any signs of slippage in the gearbox itself, everything is like new in there. Motor temp is cool, 25-30 C at most on the outside.
I'm beginning to think I've got a dud motor, weak isolation of the windings or something. Never experienced this behaviour before. Or maybe this motor just isn't fit to run high amps. Or the controller is broken in some weird way. Any ideas?
When I load it too much it feels like the motor throws itself in reverse and then forwards again, really fast. The whole bike shakes and sometimes my BMS trips. It only happens when load is higher than say 40-50A. There is no chain or gear slippage, I have a straight chain line, not running small cogs on the casette and all new parts (and I know what chain slip feels like). I just recently switched my sprag clutch to the one used in recent versions but that didn't do anything. I tried gearing it down to get the rpms even higher but that didn't help either. I can't see any signs of slippage in the gearbox itself, everything is like new in there. Motor temp is cool, 25-30 C at most on the outside.
I'm beginning to think I've got a dud motor, weak isolation of the windings or something. Never experienced this behaviour before. Or maybe this motor just isn't fit to run high amps. Or the controller is broken in some weird way. Any ideas?