Thanks, guys! Suggested by your keywords, found some good journal papers explaining the processes in details. Although math intensive, I believe, I'll be able to grasp it because of the rusty control engineering math background.
Hi,
I found a nice thread where it was explained how a PMSM (brushless DC motor) is calibrated for torque ripple and other manufacturing and magnetic tolerances:
http://www.eng-tips.com/viewthread.cfm?qid=134381
Is there anything else or new/different/easier that can be added to this methods...