Anti-cogging feature reduces motor noise at high speeds ?

1

Hello,

I would like to ask the community whether they have found that switching on anti-cogging noticably reduces the audible noise from the motor torque ripple at high speed (eg >1000 rpm) ? I have seen the impressive demos of the anti-cogging resulting in smooth motion as the motor crawls, but I don’t know whether this translates to torque ripple reduction at high rpms.

Thanks,
Peter.

2

I imagine it depends on whether the system can read the position and update the driving voltages before the motor has moved a fraction of a degree. Otherwise, it would have to do some sort of prediction.

3

Hey Pete,

With properly tuned gains, it should help. That being said, some amount of noise is endemic to motors, not much way around it. Which ODrive are you using?

4

anti-cogging has no effect in higher speeds. And even with slow speed, I don’t hear any difference.