ADJUSTING COMMUTATION OF A BRUSHELESS DC MOTOR TO INCREASE MOTOR SPEED

摘要

One exemplary embodiment includes a method of increasing motor speed of a brushless direct current motor having a rotor and multiple stator phase windings. A rotor position is detected, and motor torque and/or motor speed is determined. An adjustment commutation command corresponding to the detected rotor position is selected, when motor torque is determined to be within a low-end motor torque range and/or when motor speed is determined to be within a high-end motor speed range. Voltage is applied to the multiple phase windings in accordance with the selected adjustment commutation command to increase motor speed.