| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller which can secure a reliability in motor drive control. <P>SOLUTION: This motor controller is equipped with an analog communication line Lc2 separately from a serial communication line Lc1. Then, the second MPU22 performs the determination about whether serial communication is performed normally or not, and when the serial communication is performed normally, it controls the drive of an electric motor 3, based on a motor command value S1 sent by the serial communication line Lc1. In the case that the serial communication is abnormal, the second MPU22 controls the drive of the electric motor 3, based on a motor command value S2 sent by the analog communication line Lc2. Therefore, even in the case that the serial communication between the first MPU and the second MPU is not performed normally, it can continue the drive control of the electric motor 3. Therefore, it can improve the reliability on the motor drive control. <P>COPYRIGHT: (C)2004,JPO |
