Title:
POSITION CONTROL DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2017/022612
Kind Code:
A1
Abstract:
Provided is a novel position control device with which deviation due to the nonlinear spring characteristic of a rolling device can be reduced. This position control device (5) controls the position of a moving body (1) of a positioning device (9) equipped with a rolling device (2). The deviation e(t) or d of the moving body 1 due to the nonlinear spring characteristic of the rolling device (2) is subtracted from or added to a position command Xref or r for the moving body (1). The deviation d is calculated by subjecting the friction force of the rolling device (2) to an equivalent transformation in a control circuit, and converting the friction force to a dimensional amount of displacement.
Inventors:
FUTAMI SHIGERU (JP)
SHIBATA HITOSHI (JP)
OHASHI TOMOFUMI (JP)
SHIBATA HITOSHI (JP)
OHASHI TOMOFUMI (JP)
Application Number:
PCT/JP2016/072136
Publication Date:
February 09, 2017
Filing Date:
July 28, 2016
Export Citation:
Assignee:
THK CO LTD (JP)
International Classes:
G05D3/12; G05B11/36; G05B19/404
Foreign References:
| JP2007058277A | 2007-03-08 | |||
| JP2013102663A | 2013-05-23 |
Other References:
HIROSHI SUGIE: "Modeling and Compensation for the Exponential Type Lost Motion to Improve the Contouring Accuracy of NC Machine Tools", SYSTEMS, CONTROL AND INFORMATION, vol. 45, no. 3, 2 April 2001 (2001-04-02), pages 25 - 31
Attorney, Agent or Firm:
SHIOJIMA, Toshiyuki (JP)
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