this is currently a project from russia:

http://forum.rcdesign.ru/blogs/97312/blog15240.html

Using google translate i get this for the control part:

The required angle vystalyaetsya from the panel. Next PID-controller detects an error in each axis and gives a signal to the motor. Controller output - "Electrical angle" (see operating principle bezkollektornikov). Further, the angle is converted to three sine shifted by 120 degrees., And is served by three PWM-generators for power switches - (half-bridge for each phase). Thus, the vector magnetic field in the stator windings rotated to the desired angle, and the rotor tends to follow him, correcting the error.

Can anyone make sense of this?

bezkollektornikov might mean piezoelectric?

Thank you