| 摘要 |
PROBLEM TO BE SOLVED: To achieve a motor control apparatus capable of reducing generation of noise while reducing cost rise even when a wire harness length from a motor driving part up to a motor is long.SOLUTION: Since an inductance component increases when a length A of a vehicle wire harness 315 is extended, conduction noise may be increased. The higher the PWM frequency of a signal for driving a motor 200, the conduction noise is increased. Thereby when the vehicle wire harness 315 is extended and the PWM frequency is set to a high value, large conduction noise is generated. In the invention, when the length A of the vehicle wire harness is long, the PWM frequency of the signal for driving the motor 200 is reduced to suppress generation of the conduction noise. |
