Aircraft flight envelope protection and recovery autopilot

Abstract

Systems and aircraft are provided. An avionics system for an aircraft includes: a trajectory selection module configured to select a potential aircraft path relative to a current aircraft flight condition; a trajectory flight condition module configured to estimate a modeled flight condition of the aircraft along the potential aircraft path; a limit comparison module configured to determine whether the modeled flight condition violates aircraft limits; and a violation indicator module configured to generate an indication of impending violation.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application No. 15 / 470,776, filed March 27, 2017, the entire contents of which are hereby incorporated by reference. technical field [0003] The present disclosure relates generally to aircraft flight envelope protection systems, and more particularly to aircraft flight envelope protection systems that model potential aircraft trajectories and test whether the trajectories violate aircraft limits. Background technique [0004] Aircraft are designed to operate within certain operating speeds and loads on the aircraft's control surfaces. These operating limits are known as the flight envelope, outside of which loss or loss of control of the aircraft may occur. To prevent operations outside the flight envelope, conventional aircraft utilize many different systems to evaluate various aspects of the aircraft to determine if the aircraft is operating outside the flight envelope...

AI Technical Summary

Problems solved by technology

However these conventional systems have limitations that prevent complete wire protection

[0005] In addition, these legacy systems are often disabled for landing based on whether the landing gear is down or by command of the pilot

however disabling these systems for landing would cause the aircraft to lose flight envelope protection during landing

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