| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicular electric motor control method that can suppress by a simple structure vibration and noise that are generated in a vehicle by torque fluctuation arising from a magnetic force distribution around an output shaft. <P>SOLUTION: The reference position of the output shaft 12 or a rotor 13 to a vehicular DC motor 10 is identified and a rotation reference signal is generated. On the basis of revolutions of the rotor and/or a DC current, a current fluctuation component that has a prescribed amplitude and a phase shift corresponding beforehand to the width of the torque fluctuation and the phase shift from the rotation reference signal is obtained for each revolution of the rotor and/or the DC current. The DC current that synchronizes with the rotation reference signal and is corrected by the current fluctuation component is conducted to a solenoid. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
