Motor control device and motor control method

A motor control method of a motor control device generating a voltage command value from a current command value and performing feedback control using a detection current flowing in a motor, the motor control method comprising:

• a correction control procedure of setting, by a correction control unit, a d-axis current command value and a q-axis current command value to 0 when the motor is rotated at a constant velocity;
• a current control procedure of generating, by a current control unit, at least one of (i) an integral value of d-axis current deflection between the d-axis current command value and the detection current of the d-axis and (ii) an integral value of q-axis current deflection between the q-axis current command value and the detection current of the q-axis;
• an integral value measurement procedure of measuring, by an integral value measurement unit, the generated integral value;
• and
• an adjusting procedure of adjusting, by the correction control unit, a correction value at a rotation position of the motor by performing adjustment so that the measured integral value becomes a value within a range determined in advance,
• wherein the integral value measurement procedure measures the integral value at a time of generating the correction value for the adjustment, and
• wherein the adjusting procedure includes (i) generating at least two correction values for the adjustment, (ii) calculating an approximate formula based on the integral value of each of the at least two correction values for the adjustment, and (iii) calculating the correction value at the rotation position of the motor using the calculated approximate formula.