Hi everyone,
I'm new to this forum and would need some assistance with the correct settings for a (probably) very simple use case:
Have a 75100 Pro V2 and an E-Bike BLDC motor that I'd like to drive in torque mode such that the motor provides a constant torque.
Use case:
The motor should be used as an actuator in a gym resistance machine, e.g. a knee extension machine.
So it should provide a counter force / resistance and should be back-drivable.
This is currently in experimental stage.
What I got so far:
VESC Tool V6.06
Device per UI: 75 300 R2
Motor is this (not sure if I_m allowed to post this link here): https://www.amazon.de/dp/B0F5979H2W?ref=ppx_yo2ov_dt_b_fed_asin_title
I'm currently using a lab power supply with 6A at 27V, and buffering capacity of 23 milliFarad
I have no other periphery attached to the controller, just the USB to the PC, battery, motor w/ hall sensors.
Motor FOC Wizard outputs reasonable values:
Motor R 91.6 mΩ
Motor L 171 µH
Lq-Ld 38 µH
Flux 23.45 mWb
Motor Current 54 A
Hall sensors
So far I can get the motor spinning by using Motor Settings/Experiments/Current sweep
And this is not so far away from what I'm looking for. I can back-drive the motor by hand without problems.
Which settings should I use to apply a constant (but adjustable) force/current? (Other than the Current sweep)
Can I limit the RPM at the same time? Currently the RPM increases to high values if no resistance is applied in current sweep.
How to deal with the servo input? I think I'd use the input as an on/off for the force actuator.
Thanks so far...