公开(公告)号：US20200164996A1

公开(公告)日：2020-05-28

申请号：US16775489

申请日：2020-01-29

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Carmine LISIO ,  Kenneth Matheson

IPC: B64D31/06 ,  B64C11/30 ,  B64D27/10 ,  F02C9/58

Abstract: There are described methods and systems for controlling an aircraft. The system comprises a power plant controller configured for controlling operation of an engine and a propeller coupled to the engine, a power throttle having at least one throttle lever to regulate output power of the engine and thrust produced by the propeller, and an autothrottle controller operatively connected to the power plant controller and to the power throttle and configured to modulate engine power without pilot input by causing a change to at least one setting of the power throttle.

公开(公告)号：US10604268B2

公开(公告)日：2020-03-31

申请号：US15446262

申请日：2017-03-01

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Carmine Lisio ,  Kenneth Matheson

IPC: B64C19/02 ,  B64D31/06 ,  B64D27/10 ,  B64C11/30 ,  F02C9/58

Abstract: The present disclosure provides methods and systems for controlling a propeller-driven aircraft powered by at least one gas turbine engine. A thrust change is obtained corresponding to a difference between an actual thrust and a desired thrust for an engine. When the thrust change is greater than a pre-determined threshold, a setting change to one or more control input(s) of the engine is determined. One or more commands are output to cause the setting change of the control input(s).

公开(公告)号：US12180901B2

公开(公告)日：2024-12-31

申请号：US16713226

申请日：2019-12-13

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： James Robert Jarvo ,  Kenneth Matheson ,  Mario Guerra

IPC: F02C9/58 ,  B64C11/44 ,  B64D27/10 ,  B64D31/04 ,  B64D31/06

Abstract: Methods and system are described for operating an aircraft powerplant comprising an engine coupled to a variable-pitch propeller. The method comprises receiving a request to change a propeller rotational speed from a first setting to a second setting, determining a power need for the engine, when the power need corresponds to the second setting, modifying a command for at least one of fuel flow to the engine and oil flow to the propeller to govern the powerplant in accordance with the second setting for the propeller rotational speed, and when the power need does not correspond to the second setting, overriding the request to change the propeller rotational speed from the first setting to the second setting.

公开(公告)号：US11999499B2

公开(公告)日：2024-06-04

申请号：US16775489

申请日：2020-01-29

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Carmine Lisio ,  Kenneth Matheson

IPC: B64C19/02 ,  B64C11/30 ,  B64D27/10 ,  B64D31/06 ,  F02C9/58

CPC classification number: B64D31/06 ,  B64C11/30 ,  B64C11/303 ,  B64D27/10 ,  F02C9/58 ,  F05D2220/325 ,  F05D2270/051 ,  F05D2270/122

Abstract: There are described methods and systems for controlling an aircraft. The system comprises a power plant controller configured for controlling operation of an engine and a propeller coupled to the engine, a power throttle having at least one throttle lever to regulate output power of the engine and thrust produced by the propeller, and an autothrottle controller operatively connected to the power plant controller and to the power throttle and configured to modulate engine power without pilot input by causing a change to at least one setting of the power throttle.

公开(公告)号：US20240425204A1

公开(公告)日：2024-12-26

申请号：US18212823

申请日：2023-06-22

Applicant: Pratt & Whitney Canada Corp.

Inventor： Brant DUKE ,  Kenneth Matheson

IPC: B64F5/60 ,  B64C11/30

Abstract: There is described herein systems and method for testing a propeller feathering function, including monitoring over time a torque applied to a rotor shaft assembly operatively connected to a propeller of an aircraft, commanding an angle change of propeller blades of the propeller in response to receipt of a trigger signal generated upon initiation of a task or procedure performed within the aircraft, comparing, in response to the angle change being commanded, a post-angle change torque applied to the rotor shaft assembly to an expected torque without the commanded angle change and obtaining a torque difference, and issuing a test passed signal when the torque difference exceeds a threshold and a test failed signal when the torque difference does not exceed the threshold.

公开(公告)号：US12077278B1

公开(公告)日：2024-09-03

申请号：US18140347

申请日：2023-04-27

Applicant: Pratt & Whitney Canada Corp.

Inventor： Louis Duranleau-Hendrickx ,  Bryan Chen ,  Kenneth Matheson

IPC: B64C11/30

CPC classification number: B64C11/301

Abstract: An assembly for an aircraft propulsion system includes a propeller, a blade position sensor, and a controller. The propeller is configured for rotation about a rotational axis. The propeller includes a plurality of propeller blades. The plurality of propeller blades have a pitch. Each propeller blade of the plurality of propeller blades is configured for rotation about a respective lengthwise axis to selectively vary the pitch. The blade position sensor is configured to measure the pitch. The blade position sensor is configured to generate a pitch output signal representative of the measured pitch. The controller is in signal communication with the blade position sensor. The controller includes a processor in communication with a non-transitory memory storing instructions, which instructions when executed by the processor, cause the processor to: detect a presence or an absence of an erroneous propeller blade pitch measurement using at least the pitch output signal.

公开(公告)号：US11708768B2

公开(公告)日：2023-07-25

申请号：US17680801

申请日：2022-02-25

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Brant Duke ,  Kenneth Matheson

IPC: F01D21/00 ,  B64C11/38 ,  B64C11/06 ,  B64C11/30 ,  F01D7/00 ,  B64F5/60 ,  B64C11/32

CPC classification number: F01D21/003 ,  B64C11/06 ,  B64C11/30 ,  B64C11/325 ,  B64C11/385 ,  B64F5/60 ,  F01D7/00

Abstract: There is described herein the automation of propeller feather testing functions, whereby the test is automatically performed and a pass/fail signal is issued upon completion.

公开(公告)号：US11286806B2

公开(公告)日：2022-03-29

申请号：US16655424

申请日：2019-10-17

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Brant Duke ,  Kenneth Matheson

IPC: F01D21/00 ,  B64C11/38 ,  B64C11/06 ,  B64C11/30 ,  F01D7/00 ,  B64F5/60 ,  B64C11/32

Abstract: There is described herein methods and systems for testing a propeller feathering function. The method comprises monitoring a rotational speed over time of propeller blades of an aircraft, commanding an angle change of the propeller blades, comparing a post-angle change rotational speed of the propeller blades to an expected rotational speed without the commanded angle change and obtaining, by the processor, a rotational speed difference, and issuing a test passed signal when the rotational speed difference exceeds a threshold and a test failed signal when the rotational speed difference does not exceed the threshold.