ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM FOR VEHICLE AND METHOD AND SYSTEM FOR MOTOR CONTROL

摘要

The disclosure relates to a motor controller and a method for controlling an electric motor. For the motor, there is provided at least one sensor output for determining a switching instant for a switch of a switching inverter controlling a conduction angle determining a conduction time during a revolution of the motor. The method comprises: receiving the sensor output; advancing a switching-on time of a switch of the switching inverter connecting a d-c bus voltage to a motor phase drive input by a phase angle prior to the next sensor output determining the switching instant; and controlling the speed of the motor by changing the amount of the phase angle.