Control system with filtered dead zone
US7039476B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2003 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Oct 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B7/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of operating a control device having a setpoint value, an error signal, and a control output is disclosed. The error signal is representative of a difference between a controlled variable and the setpoint value, the control output operable to affect the controlled variable. The method includes generating the control output based at least in part on the error signal and holding the control output at a held value independent of the error signal when the error signal is within a dead zone. The method also includes causing an integrating portion within the control device to track the error signal and the held value when the error signal is within the dead zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.