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公开(公告)号：US10961922B2
公开(公告)日：2021-03-30
申请号：US15945556
申请日：2018-04-04
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Richard P. Meisner , Chaohong Cai , Timothy J. Crowley
Abstract: A power turbine control system for a gas turbine engine may comprise a controller comprising one or more processors in communication with the gas turbine engine. The processors may comprise an engine control module configured to receive a torque request signal and generate a torque achieved signal. A rate of change of power turbine speed estimation module may generate an estimated rate of change of power turbine speed signal. A dynamic inversion power turbine governor module may generate the torque request signal based on the torque achieved signal and estimated rate of change of power turbine speed signal.
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公开(公告)号：US10767506B2
公开(公告)日：2020-09-08
申请号：US16163292
申请日：2018-10-17
Applicant: United Technologies Corporation
Inventor： Martin Richard Amari , Joshua Adams , Manuj Dhingra , Timothy J. Crowley , Andrew B. Thompson , Timothy J. Gaudet , Richard P. Meisner
Abstract: A system for controlling a plurality of hydraulic effectors operably connected to an engine to control engine parameters. The system also includes a plurality of sensors operably connected to measure a state or parameter of each effector, a pump configured to supply fluid to the plurality of effectors, and a controller operably connected to the plurality of sensors, the plurality of effectors, and the pump. The controller executes a method for an adaptive model-based control for controlling each effector, The method includes receiving a request indicative of a desired state for each effector, receiving a weighting associated each request, obtaining information about a current state of each effector, and updating an adaptive model based control (MBC) based upon the information. The method also includes generating a control command for an effector based upon the adaptive MBC and commanding the effector based upon the control command.
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公开(公告)号：US09841039B2
公开(公告)日：2017-12-12
申请号：US14927004
申请日：2015-10-29
Applicant: United Technologies Corporation
Inventor： Joshua Adams , Martin Amari , Timothy J. Crowley
CPC classification number: F15B15/088 , F01D17/26 , F05D2260/406 , F05D2270/301 , F05D2270/64 , F15B11/028 , F15B11/08 , F15B11/10 , F15B15/1447 , F15B15/28 , F15B2211/30575 , F15B2211/50536 , F15B2211/526 , F15B2211/6313 , F15B2211/6336 , F15B2211/665 , F15B2211/6653 , F15B2211/7053 , F15B2211/765
Abstract: Systems and methods for use with a variable pressure actuator control system for a gas turbine engine are provided. A variable pressure actuator control system for a gas turbine engine may comprise a controller, a pressure regulating electro-hydraulic servo valve assembly (P-EHSV), including a variable restriction flow path, in electronic communication with the controller, a position regulating electro-hydraulic servo valve assembly (X-EHSV), including a network of flow paths, in electronic communication with the controller, a bypass regulator (BPR) in fluid communication with at least one of a pump, the P-EHSV, or the X-EHSV, the BPR configured to be controlled by the P-EHSV via a bypass pressure to vary an available pressure, and an actuator comprising an actuator piston. The variable pressure actuator control system may minimize pressure when possible to increase mission capability for a gas turbine engine.
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公开(公告)号：US20170322571A1
公开(公告)日：2017-11-09
申请号：US15145508
申请日：2016-05-03
Applicant: United Technologies Corporation
Inventor： Timothy J. Crowley , Tyler J. Selstad , Ding Xibei
CPC classification number: G05D23/023 , F02C9/16 , G05B13/048 , G06Q10/06 , G06Q50/06
Abstract: According to an aspect, a method includes generating, by a computer processor, thermo-fluid parameter estimates of a thermal management system (TMS) of an engine based on sensed parameters and monitoring for TMS component failures based on the thermo-fluid parameter estimates and the sensed parameters. Thermo-mechanical parameter estimates are generated based on selected thermo-fluid parameters. Life usage estimates and life usage rate estimates are generated based on the selected thermo-fluid parameters and the thermo-mechanical parameter estimates. Life usage rate targets are generated based on external commands and the life usage estimates. Limits and goals are modified based on the life usage rate estimates, failure flags, and the life usage rate targets. A model predictive control is applied to command one or more TMS control components based on thermo-mechanical model parameters, the failure flags, and the limits and goals.
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公开(公告)号：US11555455B2
公开(公告)日：2023-01-17
申请号：US16783512
申请日：2020-02-06
Applicant: United Technologies Corporation
Inventor： Timothy J. Crowley , Sorin Bengea , Manuj Dhingra , David Gelwan , Kevin Hendricks , Joshua Adams , Martin Richard Amari , Richard P. Meisner , David Lei Ma
Abstract: A hybrid electric propulsion system includes a gas turbine engine having at least one compressor section and at least one turbine section operably coupled to a shaft. The hybrid electric propulsion system includes an electric motor configured to augment rotational power of the shaft of the gas turbine engine. A controller is operable to determine an estimate of hybrid electric propulsion system parameters based on a composite system model and sensor data, determine a model predictive control state and a prediction based on the hybrid electric propulsion system parameters and the composite system model, determine a model predictive control optimization for a plurality of hybrid electric system control effectors based on the model predictive control state and the prediction using a plurality of reduced-order partitions of the composite system model, and actuate the hybrid electric system control effectors based on the model predictive control optimization.
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Patent Agency Ranking
公开(公告)号：US20210262400A1
公开(公告)日：2021-08-26
申请号：US16797572
申请日：2020-02-21
Applicant: United Technologies Corporation
Inventor： Chaohong Cai , Richard P. Meisner , Timothy J. Crowley , David Lei Ma
IPC: F02C9/28
Abstract: A control system for limiting a power turbine torque of a gas turbine engine is disclosed. In various embodiments, the control system includes an engine control module configured to output an effector command signal to a gas generator of the gas turbine engine; a power turbine governor module configured to output to the engine control module a power turbine torque request signal; and a power turbine torque limiter module configured to output to the power turbine governor module a power turbine speed rate signal to limit a power turbine speed overshoot of the gas turbine engine.
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公开(公告)号：US20200347787A1
公开(公告)日：2020-11-05
申请号：US16783512
申请日：2020-02-06
Applicant: United Technologies Corporation
Inventor： Timothy J. Crowley , Sorin Bengea , Manuj Dhingra , David Gelwan , Kevin Hendricks , Joshua Adams , Martin Richard Amari , Richard P. Meisner , David Lei Ma
Abstract: A hybrid electric propulsion system includes a gas turbine engine having at least one compressor section and at least one turbine section operably coupled to a shaft. The hybrid electric propulsion system includes an electric motor configured to augment rotational power of the shaft of the gas turbine engine. A controller is operable to determine an estimate of hybrid electric propulsion system parameters based on a composite system model and sensor data, determine a model predictive control state and a prediction based on the hybrid electric propulsion system parameters and the composite system model, determine a model predictive control optimization for a plurality of hybrid electric system control effectors based on the model predictive control state and the prediction using a plurality of reduced-order partitions of the composite system model, and actuate the hybrid electric system control effectors based on the model predictive control optimization.
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公开(公告)号：US20200123927A1
公开(公告)日：2020-04-23
申请号：US16163292
申请日：2018-10-17
Applicant: United Technologies Corporation
Inventor： Martin Richard Amari , Joshua Adams , Manuj Dhingra , Timothy J. Crowley , Andrew B. Thompson , Timothy J. Gaudet , Richard P. Meisner
Abstract: A system for controlling a plurality of hydraulic effectors operably connected to an engine to control engine parameters. The system also includes a plurality of sensors operably connected to measure a state or parameter of each effector, a pump configured to supply fluid to the plurality of effectors, and a controller operably connected to the plurality of sensors, the plurality of effectors, and the pump. The controller executes a method for an adaptive model-based control for controlling each effector, The method includes receiving a request indicative of a desired state for each effector, receiving a weighting associated each request, obtaining information about a current state of each effector, and updating an adaptive model based control (MBC) based upon the information. The method also includes generating a control command for an effector based upon the adaptive MBC and commanding the effector based upon the control command.
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公开(公告)号：US10316760B2
公开(公告)日：2019-06-11
申请号：US14626163
申请日：2015-02-19
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Richard P. Meisner , Chaohong Cai , James W. Fuller , Timothy J. Crowley
Abstract: A system and methods are provided for controlling turboshaft engines. In one embodiment, a method includes receiving input signals for a collective lever angle (CLA) command and real-time power turbine speed (NP) of an engine, determining system data for engine effectors by the control unit based on the input signals for the collective lever angle (CLA) command and the real-time power turbine speed (NP) based on an integrated model for the turboshaft engine including a model of a gas generator section of the turboshaft engine and a model of a power turbine and rotor load section of the turboshaft engine. The method may also include determining control output based on model-based multi-variable control including optimization formulation and a constrained optimization solver. The method may also include outputting one or more control signals for control of the turboshaft engine.
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公开(公告)号：US10260425B2
公开(公告)日：2019-04-16
申请号：US15147173
申请日：2016-05-05
Applicant: United Technologies Corporation
Inventor： Timothy J. Crowley , Tyler J. Selstad , Sorin Bengea , Robert H. Luppold
Abstract: A fuel system for a gas turbine engine includes, among other things, a plurality of components defining a plurality of localized nodes at distinct locations relative to a fuel flow path, each of the plurality of localized nodes characterized by a distinct set of failure parameters. One or more fuel sensors are configured to measure at least one fuel condition relating to flow through the fuel flow path. A fuel observation assembly is coupled to one or more engine sensors configured to measure at least one engine condition. The fuel observation assembly comprises an estimation module operable to calculate an expected condition of each of the plurality of localized nodes based upon the set of failure parameters, an observation module operable to calculate an observed condition of each of the plurality of localized nodes, the observed condition based on present values of the at least one fuel condition and the at least one engine condition, and a comparison module operable to determine an abnormality corresponding to a first one of the plurality of localized nodes based upon a comparison of the expected condition and the observed condition for each of the plurality of localized nodes.
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