Hi, i am using this motor and VESC 6. I have a problem with smooth startup of the motor and keeping low RPM (<1000). I use FOC and current control with own PID speed controller which works great in higher speeds (error +/-1%). I know that sensorless motors are are difficult to control at low speeds but the original ESC did the job pretty good and it managed to start from zero speed smoothly with load.
My question is, if there might be other problem (for example motor parameters, current PID setting) or it is not possible to control this type of motor with VESC without problems. Can BLDC instead of FOC improve the behavior?
Thank you for your advice.