| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor drive control device having high reliability capable of easily suppressing the occurrence of torque ripple and vibration-noise so as not to increase manufacturing cost and a load on the control even if it is a large current motor to improve steering feeling, and an electric power steering device. SOLUTION: The motor drive control device is equipped with a means which drive controls the motor having three phases or more by a vector control method based on a current command value of d-q axis calculated based on at least steering torque. The motor drive control device is equipped with a means for calculating d-q axis current command value by a correction value calculated by a correction part for correcting an induced voltage waveform model based on a motor angle. COPYRIGHT: (C)2009,JPO&INPIT |
