Fly-by-wire flight control system and method

US9540096B2 · kind B2 · utility

Assignee

• BOMBARDIER INC.

Inventors

• Shu-Min Lin · Hsinchu, TW
• Timothy Smith · Dollard-Des-Ormeaux, CA
• Pierre De Serres · Mont-Laurier, CA

Key dates

• Filing date: Oct 28, 2015
• Grant date: Jan 10, 2017
• Expiry date: Oct 28, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D1/0077
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A multi-axis serially redundant, single channel, multi-path fly-by-wire control system comprising: serially redundant flight control computers in a single channel where only one “primary” flight control computer is active and controlling at any given time; a matrix of parallel flight control surface controllers including stabilizer motor control units (SMCU) and actuator electronics control modules (AECM) define multiple control paths within the single channel, each implemented with dissimilar hardware and which each control the movement of a distributed set of flight control surfaces on the aircraft in response to flight control surface commands of the primary flight control computer; and a set of (pilot and co-pilot) controls and aircraft surface/reference/navigation sensors and systems which provide input to a primary flight control computer and are used to generate the flight control surface commands to control the aircraft in flight in accordance with the control law algorithms implemented in the flight control computers.