Vertical flight path and airspeed control system for aircraft
US4764872A · kind A · utility
41Cited by
10References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1986 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Jul 16, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0638
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An aircraft control system that simultaneously controls vertical speed (or flight path angle) and airspeed or Mach number by supplying the vertical speed (or flight path angle) command to the autothrottle system and the airspeed or Mach command to the autopilot pitch channel. A thrust reference computer provides an approximation of the thrust required to maintain the reference vertical speed (or flight path angle) and a vertical speed error signal in closed loop fashion provides a vernier adjustment to the approximation to provide the autothrottle channel command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.