Position control apparatus and position control method
US6889115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2002 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Sep 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41045
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A position control apparatus and method has been devised which provides for an improved means of suppressing tracking error from a variable position reference occurring when a control object positioned via a transmission mechanism with mechanical transmission error resumes movement from a state stopped at a target position. A selection between two alternative tracking error compensating means within the control apparatus is made based on whether the detected position of the control object changes in a period after the control object stops and before the variable position reference is input again to a control deviation generating unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.