Flight control system and method for a rotary wing aircraft, enabling it to maintain either track or heading depending on its forward speed
US9789953B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2015 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Jul 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0858
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A flight control method and system for a rotary wing aircraft. When the longitudinal speed UX of the aircraft is greater than a first threshold speed Vthresh1, a first mode of operation of the method enables flight to be performed while maintaining track relative to the ground, the flight setpoints of an autopilot being a ground course angle TKsol, a forward speed Va, a flight path angle P, and a heading Ψ. When the longitudinal speed UX is less than a second threshold speed Vthresh2, a second mode of operation enables flight to be performed while maintaining heading, the flight setpoints being the longitudinal speed UX, a lateral speed VY, a vertical speed WZ, and the heading Ψ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.