| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve stable driving of a motor and control of a spark advance in a wide range. <P>SOLUTION: A motor drive device 10 for driving a motor generates a magnetic pole interruption pulse signal for each rotation of a predetermined electrical angle of the motor, obtains an angular acceleration (ΔRPM) of the motor on the basis of the generated magnetic pole interruption pulse signal, determines a position of a predetermined spark advance on the basis of pulse signals of a number (m) corresponding to the angular acceleration (ΔRPM), and switches a phase current at a position of the obtained spark advance, thereby to implement delay compensation of the motor. <P>COPYRIGHT: (C)2013,JPO&INPIT |
