Improove aligment procedure. The angle between the stator and rotor magnetic fields must be in 90deg±30deg

itronics / wii-esc

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Improove aligment procedure. The angle between the stator and rotor magnetic fields must be in 90deg±30deg #3

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago

To Archive maximum torque, the angle between the stator and rotor magnetic 
fields must be in 90deg±30deg

- Normal align (0 deg)
- 2 short commutations (probably CommStart/8)
- Normal startup with BEMF (90 deg)

Original issue reported on code.google.com by d.kayu...@gmail.com on 13 Oct 2011 at 2:05

GoogleCodeExporter commented 9 years ago

Or use 12 steps scheme for aligment
http://bldc.wikidot.com/p-esc-motor

a+,b+,c-

1)
com6com1
com1com2 a+, c-
BpFET_on b+
2) ramp power
3) BpFET_off
4) Start

Original comment by d.kayu...@gmail.com on 13 Oct 2011 at 3:51

GoogleCodeExporter commented 9 years ago

Original comment by d.kayu...@gmail.com on 13 Oct 2011 at 2:18

Changed state: Fixed

GoogleCodeExporter commented 9 years ago

Original comment by d.kayu...@gmail.com on 13 Dec 2011 at 1:34

Changed state: Verified