Patent ID: 9741252
Date: 2017-08-22
CPC Classifications: B64C,G05D,G08G

Claim:
1. A flight management assembly of an aircraft comprising: guidance systems each provided with a flight management system, the flight management systems being independent of each other and hosted in different computer equipment, each of the flight management systems being configured to compute guidance commands for the aircraft, at least one monitoring unit configured to monitor data generated by the flight management systems, wherein the monitoring unit is hosted in a computer equipment different from the computer equipment hosting the flight management systems, and in that the at least one monitoring unit is configured to monitor the guidance commands computed by flight management systems to detect and identify a defective flight management system, wherein the at least one monitoring unit is configured: to compute a difference between a first guidance command computed by one of the flight management systems and a corresponding second guidance command computed by another one of the flight management systems; if the difference is greater than the certain margin, to analyze variations between the first guidance command and the second guidance command by comparing a first extrapolated position of the aircraft based on the first guidance command with a corresponding second extrapolated position of the aircraft based on the second guidance command; to detect whether one of the first and second guidance commands is inconsistent based on the comparison the first and second extrapolated positions, and to determine which of the flight management systems computed an inconsistent guidance command based on the detection of an inconsistent flight guidance command and designate as being a defective flight management system the flight management system that generated the inconsistent flight guidance command.