Patent ID: 8615335

Claim:
A method for controlling thrust generated by an engine for an aircraft, the method comprising: receiving, in a thrust control unit, a command for a selected thrust mode for the aircraft, wherein the selected thrust mode comprises at least one of: takeoff thrust, and maximum thrust; responsive to receiving the command, controlling a level of thrust provided by the engine for the aircraft based on factors comprising: a determination of an undesired engine parameter before the undesired engine parameter occurs, a groundspeed of the aircraft, and an airspeed of the aircraft, wherein the undesired engine parameter comprises at least one of: an engine fan blade threshold, and an engine speed limit, wherein the controlling step comprises: providing the level of thrust as a lower level of thrust set by a groundspeed limit, and an airspeed limit; determining whether a current groundspeed exceeds a first threshold; determining whether a current airspeed exceeds a second threshold; responsive to the current groundspeed exceeding the first threshold, disabling the groundspeed limit from being used to control the level of thrust; and responsive to the current airspeed exceeding the second threshold, disabling the groundspeed limit from being used to control the level of thrust.