Patent ID: 8816617
Filing Date: 2014-08-26
Classification: H02P

Abstract:
1. A three-phase motor control apparatus controlling a driver which drives a three-phase motor, said apparatus comprising: a desired rotation angle generation section generating a desired rotation angle; a rotation angle detection section detecting a detected rotation angle which is a rotation angle of said three phase motor; a q-axis command generation section generating, in response to said desired rotation angle and said detected rotation angle, a q-axis command reference value which controls a q-axis voltage or a q-axis current of said three-phase motor; a drive torque correction section generating a q-axis command value by correcting said q-axis command reference value; and a control signal generation section generating a control signal which controls said driver which drives said three-phase motor in response to said q-axis command, wherein said drive torque correction section includes an angle look-up table which contains values of elements respectively associated with angle ranges defined for the rotation angle of said three-phase motor, selects any of said elements in response to said detected rotation angle, and generates said q-axis command by adding a value of said selected element and said q-axis command reference value.