Aircraft control system with residual error containment

US11257383B2 · kind B2 · utility

Assignee

• BOMBARDIER INC.

Inventors

• Franck Gansmandel · Montréal, CA
• Timothy Smith · Dollard-Des-Ormeaux, CA

Key dates

• Filing date: Nov 28, 2017
• Grant date: Feb 22, 2022
• Expiry date: Jul 31, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G08G5/59
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The aircraft control systems and methods disclosed herein are configured to detect a residual error associated with a flight control computer of an aircraft and mitigate the effect(s) of such residual error in order to maintain safe operation of the aircraft. In some embodiments, the systems and methods are configured to detect an out-of-flight-envelope situation of the aircraft and determine whether or not the flight control computer is attempting to recover the aircraft from the out-of-flight-envelope situation. If the flight control computer is perceived as attempting to recover the aircraft from the out-of-flight-envelope situation, the flight control computer is permitted to continue controlling the aircraft. Otherwise, the excursion outside of the normal flight envelope is perceives as potentially having been caused by a residual error and the flight control computer is prevented from continuing to control the aircraft.