| 摘要 |
A motor controlling device for mounting on a vehicle, which includes a controller capable of controlling a DC brushless motor at high response and high accuracy. The motor controlling device for mounting on the vehicle to drive the DC brushless motor comprises a main control section ( 120 ) for calculating a torque command for the motor, and a current control calculation section ( 140 ) constituted by a module or a dedicated LSI independent of the main control section ( 120 ). The current control calculation section ( 140 ) converts the coordinates of a current of the DC brushless motor into a d-axis direction, i.e., a direction of magnetic flux of a motor rotor, and into a q-axis direction orthogonal to the d-axis direction, and feedback-controls a current in the d-axis direction and a current in the q-axis direction separately.
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