公开(公告)号：US20240133314A1

公开(公告)日：2024-04-25

申请号：US18488217

申请日：2023-10-16

Applicant: ROLLS-ROYCE plc

Inventor： David M. DONNELLY ,  Caroline L. TURNER ,  Derek S. WALL ,  Peter F. DOUGLAS

IPC: F01D19/00 ,  F01D21/00

CPC classification number: F01D19/00 ,  F01D21/003 ,  F05D2260/80 ,  F05D2260/85

Abstract: There is provided a method of starting a gas turbine engine, comprising: selecting a baseline starting procedure of the gas turbine engine based on environmental data; receiving condition information for the gas turbine engine and/or for a starting system of the gas turbine engine, the condition information comprising at least one of: health information for the gas turbine engine and/or the starting system; maintenance information for the gas turbine engine and/or the starting system; and operation information relating to an expected future usage of the gas turbine engine. The method further comprises determining a predicted degradation profile for the gas turbine engine and/or the starting system based on the condition information; determining a starting procedure of the gas turbine engine by adapting the baseline starting procedure based on the predicted degradation profile; and controlling the gas turbine engine and/or the starting system according to the determined starting procedure.

公开(公告)号：US20230146869A1

公开(公告)日：2023-05-11

申请号：US17883815

申请日：2022-08-09

Applicant: ROLLS-ROYCE PLC

Inventor： Derek S. WALL ,  Andrew R. MILLS ,  Peter A. BEECROFT ,  Marko BACIC ,  Romain GUICHERD

IPC: G08G5/00

CPC classification number: G08G5/0065 ,  G08G5/003

Abstract: A computer-implemented method of enabling optimisation of derate for a propulsion system of a vehicle, the method comprising: determining a derate for the propulsion system of the vehicle using: an algorithm; a vehicle model defining path constraints for the vehicle through space; a propulsion system model defining parameters of the propulsion system; an objective function defining one or more objectives; and controlling output of the determined derate.

公开(公告)号：US20200226936A1

公开(公告)日：2020-07-16

申请号：US16739614

申请日：2020-01-10

Applicant: ROLLS-ROYCE plc

Inventor： Andrew R. MILLS ,  Maszatul M. MANSOR ,  Derek S. WALL

IPC: G08G5/00

Abstract: A computer-implemented method of optimizing the performance of a reconfigurable power system is provided. The method comprises the steps of: receiving an operating profile for the power system; partitioning the operating profile into a plurality of sub-phases; performing a coarse optimisation routine of the power system over each sub-phase of the operating profile to derive a respective coarsely optimised configuration of the power system; performing a fine optimisation routine of each coarsely optimised configuration over its respective sub-phase of the operating profile to derive a respective finely optimised configuration for that sub-phase; and defining settings of the power system to implement the finely optimised configurations thereon.

公开(公告)号：US20240093645A1

公开(公告)日：2024-03-21

申请号：US18349285

申请日：2023-07-10

Applicant: ROLLS-ROYCE plc

Inventor： David M. DONNELLY ,  Derek S. WALL

IPC: F02C7/268 ,  F02C9/00

CPC classification number: F02C7/268 ,  F02C9/00 ,  F05D2260/80 ,  F05D2260/85 ,  F05D2260/941 ,  F05D2270/303

Abstract: There is disclosed a gas turbine engine comprising: an electrically-powered motor configured to rotate a driven spool of the gas turbine engine; a primary controller configured to conduct a primary function using the motor; and a bow controller configured to selectively control the motor to perform a rotor bow mitigation operation in which the motor drives the driven spool to rotate to mitigate a non-uniform thermal distribution in a rotor of a spool of the gas turbine engine.

公开(公告)号：US20230314281A1

公开(公告)日：2023-10-05

申请号：US18184022

申请日：2023-03-15

Applicant: ROLLS-ROYCE plc

Inventor： Derek S. WALL ,  Peter F. DOUGLAS

IPC: G01M15/14 ,  F02C7/00

CPC classification number: G01M15/14 ,  F02C7/00 ,  F05D2220/323 ,  F05D2260/80 ,  F05D2260/83

Abstract: Described herein is a method of monitoring a condition of a component of a gas turbine engine, comprising: obtaining, with a non-contact monitoring sensor, monitoring data, wherein a portion of the monitoring data relates to the condition of the component of the gas turbine engine; obtaining, using a position sensor, positional data relating to the component's position; communicating the monitoring data and the positional data to a processing module, and analysing, using the processing module, the monitoring data and positional data to determine the portion of the monitoring data which relates to the component and determine a condition of the component. Also described herein is a system for monitoring and a gas turbine engine comprising the system.

公开(公告)号：US20200284207A1

公开(公告)日：2020-09-10

申请号：US16794620

申请日：2020-02-19

Applicant: ROLLS-ROYCE plc

Inventor： Ibrahim SANUSI ,  Andrew R. MILLS ,  Derek S. WALL

IPC: F02C9/52 ,  F02C9/54

Abstract: A control system of a gas turbine engine is provided. The engine has a fuel flow metering valve which regulates a fuel flow to the engine, and one or more variable geometry components which are movable between different set points to vary an operating configuration of the engine. The control system has an engine fuel control sub-system which provides a fuel flow demand signal for controlling the fuel flow metering valve. The control system further has a variable geometry control sub-system which determines current set points to be adopted by the variable geometry components given the current engine operating condition in order to comply with one or more engine constraints. The control system further has an optimiser that receives the current set points and determines adjusted values of the set points which optimise, while complying with the engine constraints, an objective function modelling a performance characteristic of the engine, the objective function adapting to change in engine performance with time. The control system further has a feedback loop in which the adjusted values of the set points thus-determined are sent to the variable geometry control sub-system to vary the current set points.

公开(公告)号：US20240229674A9

公开(公告)日：2024-07-11

申请号：US18488217

申请日：2023-10-17

Applicant: ROLLS-ROYCE plc

Inventor： David M. DONNELLY ,  Caroline L. TURNER ,  Derek S. WALL ,  Peter F. DOUGLAS

IPC: F01D19/00 ,  F01D21/00

CPC classification number: F01D19/00 ,  F01D21/003 ,  F05D2260/80 ,  F05D2260/85

Abstract: There is provided a method of starting a gas turbine engine, comprising: selecting a baseline starting procedure of the gas turbine engine based on environmental data; receiving condition information for the gas turbine engine and/or for a starting system of the gas turbine engine, the condition information comprising at least one of: health information for the gas turbine engine and/or the starting system; maintenance information for the gas turbine engine and/or the starting system; and operation information relating to an expected future usage of the gas turbine engine. The method further comprises determining a predicted degradation profile for the gas turbine engine and/or the starting system based on the condition information; determining a starting procedure of the gas turbine engine by adapting the baseline starting procedure based on the predicted degradation profile; and controlling the gas turbine engine and/or the starting system according to the determined starting procedure.

公开(公告)号：US20230296057A1

公开(公告)日：2023-09-21

申请号：US18176777

申请日：2023-03-01

Applicant: ROLLS-ROYCE plc

Inventor： Derek S. WALL ,  Asad MUSTAFA ,  Robert JOHNSON ,  Jonathan WIELAND

IPC: F02C9/00

CPC classification number: F02C9/00 ,  F05D2220/323 ,  F05D2270/051 ,  F05D2270/706

Abstract: Disclosed is a computer-implemented method for controlling an engine system of a vehicle comprising: determining an operating condition of the vehicle; determining one or more contextual conditions relevant to the vehicle; selecting, based upon both the determined operating condition and the determined one or more contextual conditions, a control profile for the engine system from a directory comprising a plurality of control profiles having different control characteristics; applying the selected control profile to a controller of the engine system; and controlling the engine system with the controller in accordance with the selected control profile. Also disclosed are an engine control system, a gas turbine engine, and an aircraft.

公开(公告)号：US20230230488A1

公开(公告)日：2023-07-20

申请号：US17890613

申请日：2022-08-18

Applicant: ROLLS-ROYCE plc

Inventor： Derek S. WALL ,  Andrew R. MILLS ,  Peter A. BEECROFT ,  Marko BACIC ,  Romain GUICHERD

IPC: G08G5/00 ,  B64C13/18

CPC classification number: G08G5/0034 ,  G08G5/0065 ,  B64C13/18

Abstract: A computer-implemented method of enabling optimisation of trajectory for a vehicle, the method comprising: determining a trajectory for the vehicle using: an algorithm; a vehicle model defining path constraints for the vehicle through space; a propulsion system model defining parameters of a propulsion system of the vehicle; an objective function defining one or more objectives; and controlling output of the determined trajectory.

公开(公告)号：US20150293503A1

公开(公告)日：2015-10-15

申请号：US14661802

申请日：2015-03-18

Applicant: ROLLS-ROYCE PLC

Inventor： Derek S. WALL ,  Matthew J. JONES ,  Andrew R. MILLS

IPC: G05B13/02

CPC classification number: G05B13/021 ,  F02C9/00 ,  F05D2260/80 ,  G05B23/0262 ,  G05B23/0286 ,  G05B23/0297 ,  Y02T50/671

Abstract: A method of optimising the performance of a machine that comprises an element, comprises the steps of: (a) receiving operational data, the operational data being representative of an operational state of the machine; (b) transmitting an adjustment signal to the element to change the operational state of the element from a first state to a second state, the predetermined second state being dependent on the operational state of the machine; (c) generating an optimising action by processing the operational data, a history of previous operational states of the machine, a history of previous adjustment signals, and a sequence of previously applied optimising actions; and (d) applying the optimising action to the machine to optimise the performance of the machine.

Abstract translation: 一种优化包括元件的机器的性能的方法，包括以下步骤：（a）接收操作数据，所述操作数据代表所述机器的操作状态; （b）向所述元件发送调整信号以将所述元件的操作状态从第一状态改变到第二状态，所述预定的第二状态取决于所述机器的操作状态; （c）通过处理操作数据，机器的先前操作状态的历史，先前调整信号的历史和先前应用的优化动作的顺序来产生优化动作; 和（d）将优化动作应用于机器以优化机器的性能。