| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress a torque ripple more effectively by carrying out drive controlling of a electrically-driven motor in consideration of distortion of an induced voltage due to armature magnetic field of an electric motor. <P>SOLUTION: The motor controlling device comprises a current command value calculating part which calculates a current command value to drive the electric motor, and a vector control current command value calculating part which calculates a phase current command value of each phase of said electric motor by using vector control. The vector control current command value calculating part includes at least a d-q axis induced voltage calculating part 61 which calculates a d-axis induced voltage and a q-axis induced voltage that are a d-axis component and a q-axis component of the induced voltage, from each phase induced voltage of said electric motor, and d-q axis current command value calculating parts 63 and 62 which calculate a d-axis current command value and a q-axis current command value based on said d-axis induced voltage, said q-axis induced voltage, and said current command value. Said d-q axis induced voltage calculating part 61 is configured to calculate the d-axis induced voltage and the q-axis induced voltage by using a motor electrical angle, a d-axis current value, and a q-axis current value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
