Patent · US Expired

Electric flight control system with aircraft incidence protection

US4829220A · kind A · utility

6Cited by
5References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 15, 1987
Grant dateMay 9, 1989
Priority date
Expiry dateSep 15, 2007

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB64C13/16
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

An electric system for controlling a depth aerodynamic surface (1) of an aircraft. The system includes an attitude sensor (3) and an incidence sensor (6). A calculation means (7) in communication with the sensor controls a motor (4) so as the depth aerodynamic surface of the aircraft reaches an incidence according to a programmed depth control law. The system utilizes an incidence protection device (35) able to control the incidence of the aircraft within a range of values limited upwards by a limit value, beyond which the aircraft could become unstable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.