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Synchronous controller

  • US 20060125438A1
  • Filed: 12/09/2005
  • Published: 06/15/2006
  • Est. Priority Date: 12/09/2004
  • Status: Active Grant
First Claim
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1. A synchronous controller for controlling a master axis and a slave axis to be synchronized according to a synchronous multiplying factor as a speed ratio of the slave axis to the master axis, comprising:

  • means for commanding a change of the synchronous multiplying factor from a first value to a second value;

    means for designating a motion amount of the master axis and a motion amount of the slave axis for the change of the synchronous multiplying factor, and a residual motion amount of the master axis after changing the synchronous multiplying factor;

    means for calculating a gradient of changing the synchronous multiplying factor and a preliminary motion amount of the master axis before changing the synchronous multiplying factor such that the designated motion amount of the slave axis has been completed and the synchronous multiplying factor has changed to the second value when the designated motion amount of the master axis is completed; and

    means for controlling motion of the slave axis with respect to the master axis according to the calculated gradient of changing the synchronous multiplying factor until the synchronous multiplying factor reaches the second value after the calculated preliminary motion amount of the master axis is completed.

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