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Actuator control unit

  • US 20050077858A1
  • Filed: 09/20/2004
  • Published: 04/14/2005
  • Est. Priority Date: 10/10/2003
  • Status: Active Grant
First Claim
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1. An actuator control device for controlling the positions of a plurality of output shafts, comprising:

  • a plurality of actuators for respectively driving the plurality of output shafts by a motor;

    a plurality of control circuits for respectively detecting present positions of the output shafts of the plurality of actuators and respectively driving the output shafts to respective target stop positions based on the present positions thus detected; and

    an electrical control unit which carries out multiplex communications with the control circuits through a multiplex communication line, wherein the electrical control unit comprises a receiving unit for receiving the present positions from the plurality of control circuits through the multiplex communication line before the plurality of control circuits drive the respective actuators, a judging unit for judging whether each of the respective present positions thus received is abnormal or not, and a transmitting unit for correcting some present position out of the received present positions when judged by the judging unit that the some present position concerned is abnormal, and transmitting the corrected present position to the control circuit corresponding to the abnormal present position through the multiplex communication line.

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