chronosgarage wrote: ↑
Mar 14 2021 11:47am
PrashanBhatta wrote: ↑
Mar 10 2021 3:00am
My setup has a very low starting torque. It can't move without moving weird noise at the start. There is a setting for djusting initial torque but nothing changes on adjusting those values.
I finally found the solutions. I contacted a friend of mine who is a ebike technician. He set the parameters of my bike remotely. It turned out to be the problem with the phase wire connection, number of pole and hall angle.
I had to swap the position of the phase wire and changing the hall angle combination until he found the correct one.
My bike start smoothly now.
I am using QS3000 mid drive motor with these specs.
Magnet Height: 70mm, 40pcs, 5 pole pairs
Diameter of stator: 138mm
Rated Power: 3000W (peak power, pending)
Rated Voltage: 72V as default
No-load rpm: 4400rpm without flux weakening, 6500RPM with flux weakening. Max Torque: approx 56N.m (without Reduction ratio)
Reduction ratio: 1:4.7 (as default)
Max Efficiency: pending
Continuous Battery Current: pending (72V)
Peak Battery Current: 120A (72V)
Suggest Peak Phase Current: 450A
Thermic Probe: None (KTY83/122 is available for sample). Working Temperature: pending
Single Hall Plate with waterproof connectors
16mm² Cross Section of Phase Wire (not include insulation layer)
Hall Sensor Phasing
Are the config parameters good? Or do I have to change something?