Navigation aid method for making multiple time constraints
US9945671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Jun 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/101
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method assisting in navigation of aircraft following a flight plan subject to time constraints comprises: determining a minimum speed profile, a maximum speed profile, and minimum and maximum times of passage; determining, for each constraint of index i, a restricted interval and a required interval; the determination made by a first iterative computation, i being decremented from n−1 to 1 and comprising: determining a required interval of index i enabling the aircraft to observe a restricted interval of index i+1 by flying at a speed profile between the minimum and maximum speed profiles, the restricted interval of index i+1 determined on the preceding iteration for an iteration of index between 1 and n−2, or from the time constraint of index n for the iteration of index n−1; and determining a restricted interval of index i from the intersection of the time constraint and the required interval of index i.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.