Servo loop PID compensator with embedded rate limit
US6870345B1 · kind B1 · utility
6Cited by
14References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Oct 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B11/42
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
This invention describes a reconfigured form of the PID compensator such that the rate of change of the position error is inherently limited without affecting the performance of the servo loop when the position error is small. The technique described here maintains the performance of the conventional PID compensator when the position error is close to zero, which is the operating point of primary interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.