Hi all,
I have a vesc and a 6374 motor with 12s lipo.
I am using @Ackmaniac 's modified BDLC tool in watt control mode.
Acceleration is smooth upto a certain speed when the motor gives off a loud whining noise.
It seems like above a certain rpm the motor makes the noise.
Any advice please?
Hey! Have you tried FOC?
I have a double Enertion R-Spec setup and at a certain velocity (most likely) uphill the motors start to whine a bit which I kinda like. Not sure what causes the sound … maybe there is something in resonance?
I haven’t tried FOC, would it help ?
The motor never used to whine it’s quite loud and doesn’t go away as I increase speed.
It starts at quite low speeds so it’s hard to ignore !
Ho many miles have you done / how old is it? My 6374 made horrible noises when the bearings started to fail.
When I took it apart a few rides later I found that the bearing at the output shaft end was totally gone! - no balls, nothing - just some shreds of metal. The outer bearing was fine. Th motor still ran fine, just whiney, and a little less power at high revs.
You can get bearing replacement kits.
I will take it apart and have a look mate. Thanks 