Adaptive servo control system and method
US7884566B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2008 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41234
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system and method of implementing servomechanism control without rate feedback is provided. A position feedback signal is filtered using a non-linear lead-lag filter that has a variable frequency response to thereby generate a compensated position feedback signal. A position error signal is generated from a position command signal and a sensed position signal, and the frequency response of the non-linear lead-lag filter is varied in response to the position error signal. A compensated position error signal is generated from the commanded position signal and the compensated position feedback signal. The compensated position error signal is at least selectively filtered using a non-linear integral filter that has a variable gain to thereby at least selectively supply a filtered position error signal. The gain of the non-linear integral filter is varied in response to the compensated position error signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.