Enhanced engine load demand anticipation
AssigneeSikorsky Aircraft Corporation
InventorMatthew T. Luszcz
Life of this patent
Estimating the term…
Abstract
A flight control system of an aircraft is provided and includes modules configured to shape one or more flight control commands through a flight control system to provide a shaped flight control command and to determine expected power required data for the shaped flight control command. The flight control system further includes an architecture configured to determine enhanced engine load demand anticipation utilizing data reflective of an angle of attack of the aircraft for use in a determination of the expected power required data.
Claims9
A flight control system of an aircraft, comprising:
- a processor configured to:
- receive an angle of attack, collective setting, and airspeed of the aircraft at a selected time;
- determine a first relation between an expected change in power requirement and a change in the collective setting of the aircraft for the received angle of attack, collective setting, and airspeed;
- determine a second relation between the change in the collective setting and a change in time from when the collective setting was received;
- determine a power requirement over time for the aircraft based on the first relation between the expected change in power requirement and the change in the collective setting and the second relation between the change in the collective setting and the change in time;
- and
- maintain a reference rotor speed by adjusting an engine's power turbine speed governor, wherein the reference rotor speed is a function of the determined power requirement.
A computer-implemented method of executing an engine anticipation algorithm for an aircraft comprising:
- receiving an angle of attack, collective setting, and airspeed of the aircraft at a selected time;
- determining a first relation between an expected change in power requirement and a change in the collective setting of the aircraft at the received angle of attack, collective setting, and airspeed;
- determining a second relation between the change in the collective setting and the change in time from when the collective setting was received;
- determining a power requirement over time for the aircraft based on the first relation of the expected power requirement and the change in the collective setting and the second relation between the change in the collective setting and the change in time;
- and
- maintaining a reference rotor speed by adjusting an engine's power turbine speed governor, wherein the reference rotor speed is a function of the determined power requirement.
Dependencies are inferred from the claim text.