Feed-forward controller with delayed command input
US6308106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1999 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Feb 2, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B11/42
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system controller for a controllable system having an inherent time delay includes a delay module that receives a command input and provides a first output signal delayed in time from the command input. A feed-forward module also receives the command input, or a function thereof, and provides a second output signal intended to drive the system to a desired state. A first summer receives the delayed output signal and a feedback signal from the controllable system. The first summer combines the delayed signal and the feedback signal to provide a third output signal. A compensator module receives the third output signal and provides a fourth output signal. A second summer receives the second output signal and the fourth output signal. The second summer combines the second output signal and the fourth output signal to provide an input signal for the controllable system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.