Hello all,
I am trying to set up HFI control for a small BLDC inrunner. The motor has 6 coils in the stator, connected in a star configuration and has a cylindrical 4 pole rotor.
Configuring HFI for this motor based on the instructional video's on youtube was without any success.
I have performed the current measurement with and without the magnetic rotor. The results are as follows with 3 volts:
Above is with rotor, below is without rotor.
The motor seems to have some saliency but the magnetic rotor doesn't seem to have an effect on the inductance of the coils.
Is HFI just not an option for this motor or are there any suggestions to improve the configuration?
Thank you.
Your detection values don't look good. What motor is it exactly? Do your detection always with Rotor. You can try flashing firmware and bootloader again. Use a battery, with higher voltage. HFI is not working with every motor.
Link to forum post: VESC help offered for private persons and companies
Website: www.electricfox.de
The motor which i'm using is a 200gram inrunner with a cylindrical ferrite magnet rotor, magnetized into 4 poles.
I have now re-flashed the firmware and bootloader (i'm using a VESC Six EDU). The supplied voltage was 24 volts.
When running HFI at 10 volts, the current measurement looks better. Unfortunately the shape doesn't change when rotating the motor by hand.