System and method for propeller speed governing
AssigneePratt & Whitney Canada Corp.
InventorGabriel Meunier
Life of this patent
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Abstract
Systems and methods are described for governing the speed of a propeller on a propeller-based engine in an aircraft. The method comprises obtaining a synthesized or estimated blade angle for the propeller of the engine, determining one or more gain for a controller of the propeller based on the synthesized or estimated blade angle and one or more engine or aircraft parameter, determining a difference between a reference propeller speed and an actual propeller speed, applying the one or more gain to the difference via the controller in order to generate a command signal for controlling the propeller, and governing the propeller of the engine using the command signal.
Claims20
A method for governing a speed of a propeller on a propeller-based engine in an aircraft, the method comprising:
- determining a synthesized or estimated blade angle for the propeller of the engine as a function of one or more engine or aircraft parameters;
- determining one or more gains for a controller of the propeller based on the synthesized or estimated blade angle and the one or more engine or aircraft parameters;
- receiving a reference propeller speed and an actual propeller speed;
- determining a difference between the reference propeller speed and the actual propeller speed;
- applying the one or more gains to the difference via the controller in order to generate a command signal for controlling the propeller;
- and
- governing the propeller of the engine using the command signal.
A system for governing speed of a propeller on a propeller-based engine in an aircraft, the system comprising:
- a processing unit;
- and
- a non-transitory computer readable medium having stored thereon program code executable by the processing unit for:
- determining a synthesized or estimated blade angle for the propeller of the engine as a function of one or more engine or aircraft parameters;
- determining one or more gains based on the synthesized or estimated blade angle and the one or more engine or aircraft parameters;
- receiving a reference propeller speed and an actual propeller speed;
- determining a difference between the reference propeller speed and the actual propeller speed;
- applying the one or more gains to the difference in order to generate a command signal for controlling the propeller;
- and
- governing the propeller of the engine using the command signal.
A non-transitory computer-readable medium having stored thereon program instructions executable by a processor for governing a speed of a propeller on a propeller-based engine in an aircraft, the program instructions configured for:
- determining a synthesized or estimated blade angle for the propeller of the engine as a function of one or more engine or aircraft parameters;
- determining one or more gains for a controller of the propeller based on the synthesized or estimated blade angle and the one or more engine or aircraft parameters;
- receiving a reference propeller speed and an actual propeller speed;
- determining a difference between the reference propellers speed and actual propeller speed;
- applying the one or more gains to the difference via the controller in order to generate a command signal for controlling the propeller;
- and
- governing the propeller of the engine using the command signal.
Dependencies are inferred from the claim text.