TRACK CONTROL DEVICE - MITSUBISHI ELECTRIC CORP

Title:

TRACK CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2013/140679

Kind Code:

A1

Abstract:

A track control device (10) of an embodiment controls a track for a movable section by controlling multiple motors. Said track control device (10) is provided with: an interpolation and acceleration/deceleration computation unit (1) that interpolates a command path and executes an acceleration/deceleration computation along said command path, thereby determining a post-acceleration/deceleration interpolated path; a shaft distribution unit (3) that from the post-acceleration/deceleration interpolated path, generates a position command for each of multiple movable shafts; servo response computation units (51, 52), that on the basis of each position command, compute a servo response therefor; a tangential direction servo response computation unit (50) that from the post-acceleration/deceleration interpolated path, determines a tangential direction servo response; a reference point generation unit (2) that from the tangential direction servo response, determines a reference point; a position vector correction unit (4) that computes a correction vector on the basis of the servo response and the reference point, uses the correction vector to correct the position command for each movable shaft, and outputs the corrected position command for each movable shaft; and servo control units (6, 7) that output a motor drive torque to the motor of each movable shaft, such that each movable shaft follows the corrected position command therefor.

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Inventors:

NAGAOKA KOTARO (JP)

Application Number:

PCT/JP2012/082097

Publication Date:

September 26, 2013

Filing Date:

December 11, 2012

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
NAGAOKA KOTARO (JP)

International Classes:

G05D3/12; G05B19/404

Domestic Patent References:

WO2012026279A1

2012-03-01

Foreign References:

JP2011145884A	2011-07-28
JP2006015431A	2006-01-19
JPH03246605A	1991-11-05
JPH02185344A	1990-07-19

Attorney, Agent or Firm:

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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