Outer-loop monitor for aircraft automatic flight control system
US4592055A · kind A · utility
6Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1983 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | May 2, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0077
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The sense (direction) of outer-loop commands is compared with the sense (direction) of inner-loop signals in an aircraft AFCS. A disparity in sense indicates an outer-loop failure. To reduce nuisance failures the comparison is made only when inner-loop signal thresholds are exceeded and, in the context of outer-loop commands which are pulses, only at the onset of an outer-loop command and for a limited time thereafter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.