| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller which can secure reliability on motor drive control. <P>SOLUTION: This motor controller is equipped with a parallel communication line Lc2 separately from a serial communication line Lc1. A second MPU22 performs the judgement whether serial communication is performed normally or not, and when it determines that the serial communication is performed normally, it controls the drive of an electric motor 3, based on a motor command value sent by the serial communication line Lc1. Moreover, when it determines that the serial communication is not performed normally, it controls the drive of the electric motor 3, based on a motor command value sent by the parallel 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, based on the motor command value from parallel communication. <P>COPYRIGHT: (C)2004,JPO |
