Patents by Inventor Richard P. Meisner
Richard P. Meisner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200332726Abstract: A method of operating a gas turbine engine includes commanding an acceleration of the gas turbine engine and moving a variable pitch high pressure compressor vane toward an open position thereby reducing an acceleration rate of a high pressure turbine rotor thereby reducing a change in a clearance gap between the high pressure turbine rotor and a blade outer airseal. An active clearance control system of a gas turbine engine includes an engine control system configured to command an acceleration of the gas turbine engine and move a variable pitch high pressure compressor vane toward an open position thereby slowing an acceleration rate of a high pressure turbine rotor thereby reducing a change in a clearance gap between the high pressure turbine rotor and a blade outer airseal located radially outboard of the high pressure turbine rotor.Type: ApplicationFiled: April 18, 2019Publication date: October 22, 2020Inventors: Joseph Kehoe, Richard P. Meisner, Manuj Dhingra, Patrick D. Couture, Matthew R. Feulner, Brenda J. Lisitano, Christopher L. Ho
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Patent number: 10774749Abstract: Systems and methods for controlling a fluid-based system are disclosed. The systems and methods may include a model processor for generating a model output, the model processor including a set state module for setting dynamic states, the dynamic states input to an open loop model based on the model operating mode, where the open loop model generates current state derivatives, solver state errors, and synthesized parameters as a function of the dynamic states and a model input vector. A constraint on the current state derivatives and solver state errors is based on mathematical abstractions of physical laws that govern behavior of a component of a cycle of a control device. The model processor may further include an estimate state module for determining an estimated state of the model based on at least one of a prior state, the current state derivatives, the solver state errors, and the synthesized parameters.Type: GrantFiled: October 18, 2018Date of Patent: September 15, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Boris Karpman, Richard P. Meisner, Matthew Donald, Thomas E. Case
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Patent number: 10767506Abstract: 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.Type: GrantFiled: October 17, 2018Date of Patent: September 8, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Martin Richard Amari, Joshua Adams, Manuj Dhingra, Timothy J. Crowley, Andrew B. Thompson, Timothy J. Gaudet, Richard P. Meisner
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Patent number: 10753284Abstract: Systems and methods for controlling a fluid-based engineering system are disclosed. The systems and methods may include a model processor for generating a model output, the model processor including a set state module for setting dynamic states of the model processor, the dynamic states input to an open loop model based on the model operating mode. The model processor may further include an estimate state module for determining an estimated state of the model based on at least one of a prior state, current state derivatives, solver state errors, and synthesized parameters. The estimate state module determines an estimator gain associated with the current state derivatives and applies the estimator gain to determine the estimated state of the model.Type: GrantFiled: October 17, 2018Date of Patent: August 25, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Boris Karpman, Richard P. Meisner
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Publication number: 20200123927Abstract: 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.Type: ApplicationFiled: October 17, 2018Publication date: April 23, 2020Inventors: Martin Richard Amari, Joshua Adams, Manuj Dhingra, Timothy J. Crowley, Andrew B. Thompson, Timothy J. Gaudet, Richard P. Meisner
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Patent number: 10557418Abstract: An engine control system includes an electronic hardware engine controller and an actuator that operates at different positions to control operation of an engine. An actuator sensor measures an actuator position, and the engine controller generates a synthesized actuator position. In response to detecting a faulty actuator, a faulty actuator sensor, or both, the engine controller adjusts the position of the actuator based on the synthesized actuator position.Type: GrantFiled: January 25, 2018Date of Patent: February 11, 2020Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Boris Karpman, Richard P. Meisner, Subhradeep Chowdhury
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Patent number: 10539078Abstract: Systems and methods for controlling a fluid based engineering system are disclosed. The systems and methods may include a model processor configured to generate a model output, the model processor including a set state module for setting dynamic states of the model processor, the dynamic states input to an open loop model based on a model operating mode. The model processor may further include an estimate state module configured to determine an estimated state of the model based on at least one of a prior state, current state derivatives, solver state errors, and synthesized parameters, the estimate state module using online linearization and gain calculation to determine estimator gain for determining the estimated state of the model.Type: GrantFiled: February 20, 2018Date of Patent: January 21, 2020Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Boris Karpman, Richard P. Meisner, Manuj Dhingra
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Patent number: 10480416Abstract: Systems and methods for controlling a fluid based engineering system are disclosed. The systems and methods may include a model processor for generating a model output, the model processor including a set state module for setting dynamic states of the model processor, the dynamic states input to an open loop model based on the model operating mode. The model processor may include an input object for processing model input and setting a model operating mode, the model operating mode being a starting mode if the model input is within a data range associated with a starting operation of the control device. The model processor may further include an estimate state module for determining an estimated state of the model based on a prior state model output and the current state model of the open loop model.Type: GrantFiled: March 14, 2014Date of Patent: November 19, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Boris Karpman, Richard P. Meisner, David Sembiante, Thomas Niemczycki
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Publication number: 20190338754Abstract: A control system for limiting power turbine torque (QPT) of a gas turbine engine includes a controller including a processor and memory configured to control the gas turbine engine, the controller including an engine control module that provides an effector command signal to a gas generator of the gas turbine engine; a power turbine governor module that outputs a preliminary torque request (QPT_req_pre); and a power turbine torque (QPT) optimal limiter module that outputs a maximum torque topper (QPT_max) to limit a power turbine speed overshoot of the gas turbine engine; wherein the controller outputs a minimum value between the preliminary torque request (QPT_req_pre) and the maximum torque topper (QPT_max) to the engine control module.Type: ApplicationFiled: May 4, 2018Publication date: November 7, 2019Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Chaohong Cai, Timothy J. Crowley, David Lei Ma, Richard P. Meisner
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Publication number: 20190309689Abstract: 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.Type: ApplicationFiled: April 4, 2018Publication date: October 10, 2019Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Richard P. Meisner, Chaohong Cai, Timothy J. Crowley
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Publication number: 20190226354Abstract: An engine control system includes an electronic hardware engine controller in signal communication with at least one engine sensor, which measures an engine operating parameter (Ycrtr_t). The engine controller generates a synthesized engine operating parameter (Ycrtr) calculates an error (ERRcrtr) between the engine operating parameter (Ycrtr_t) and the synthesized engine operating parameter (Ycrtr). The engine controller further determines a corrector error parameter (Xcrtr) and determines a faulty sensor among the at least one engine sensor based on a comparison between the error value (ERRcrtr) and the corrector error parameter (Xcrtr).Type: ApplicationFiled: January 25, 2018Publication date: July 25, 2019Inventors: Boris Karpman, Richard P. Meisner, Subhradeep Chowdhury
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Publication number: 20190226407Abstract: An engine control system includes an electronic hardware engine controller and an actuator that operates at different positions to control operation of an engine. An actuator sensor measures an actuator position, and the engine controller generates a synthesized actuator position. In response to detecting a faulty actuator, a faulty actuator sensor, or both, the engine controller adjusts the position of the actuator based on the synthesized actuator position.Type: ApplicationFiled: January 25, 2018Publication date: July 25, 2019Inventors: Boris Karpman, Richard P. Meisner, Subhradeep Chowdhury
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Publication number: 20190226353Abstract: An engine control system includes an electronic hardware engine controller in signal communication with an actuator and an engine sensor. The actuator operates at a plurality of different positions to control operation of an engine. The engine sensor measures an engine operating parameter. The engine controller generates a synthesized engine operating parameter, and adjusts the position of the actuator based on the synthesized engine operating parameter in response to detecting a faulty engine sensor.Type: ApplicationFiled: January 25, 2018Publication date: July 25, 2019Inventors: Boris Karpman, Richard P. Meisner, Subhradeep Chowdhury
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Patent number: 10316760Abstract: 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.Type: GrantFiled: February 19, 2015Date of Patent: June 11, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Richard P. Meisner, Chaohong Cai, James W. Fuller, Timothy J. Crowley
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Publication number: 20190107057Abstract: Systems and methods for controlling a fluid-based system are disclosed. The systems and methods may include a model processor for generating a model output, the model processor including a set state module for setting dynamic states, the dynamic states input to an open loop model based on the model operating mode, where the open loop model generates current state derivatives, solver state errors, and synthesized parameters as a function of the dynamic states and a model input vector. A constraint on the current state derivatives and solver state errors is based on mathematical abstractions of physical laws that govern behavior of a component using a material temperature utility. The model processor may further include an estimate state module for determining an estimated state of the model based on at least one of a prior state, the current state derivatives, the solver state errors, and the synthesized parameters.Type: ApplicationFiled: November 30, 2018Publication date: April 11, 2019Inventors: Boris Karpman, Ian Michael Dinsmore, Richard P. Meisner, John Shade
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Patent number: 10227933Abstract: A method of controlling thrust for a gas turbine engine of an aircraft is provided. The method includes determining a fan speed required for minimum thrust to achieve an aircraft operation. The method also includes determining an excess amount of thrust generated by the gas turbine engine. The method also includes reducing the amount of thrust generated by the gas turbine engine.Type: GrantFiled: February 12, 2015Date of Patent: March 12, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Kurt J. Sobanski, Richard P. Meisner, Robert J. Bengtson
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Publication number: 20190040797Abstract: Systems and methods for controlling a fluid-based engineering system are disclosed. The systems and methods may include a model processor for generating a model output, the model processor including a set state module for setting dynamic states of the model processor, the dynamic states input to an open loop model based on the model operating mode. The model processor may further include an estimate state module for determining an estimated state of the model based on at least one of a prior state, current state derivatives, solver state errors, and synthesized parameters. The estimate state module determines an estimator gain associated with the current state derivatives and applies the estimator gain to determine the estimated state of the model.Type: ApplicationFiled: October 17, 2018Publication date: February 7, 2019Inventors: Boris Karpman, Richard P. Meisner
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Publication number: 20190040798Abstract: Systems and methods for controlling a fluid-based system are disclosed. The systems and methods may include a model processor for generating a model output, the model processor including a set state module for setting dynamic states, the dynamic states input to an open loop model based on the model operating mode, where the open loop model generates current state derivatives, solver state errors, and synthesized parameters as a function of the dynamic states and a model input vector. A constraint on the current state derivatives and solver state errors is based on mathematical abstractions of physical laws that govern behavior of a component of a cycle of a control device. The model processor may further include an estimate state module for determining an estimated state of the model based on at least one of a prior state, the current state derivatives, the solver state errors, and the synthesized parameters.Type: ApplicationFiled: October 18, 2018Publication date: February 7, 2019Inventors: Boris Karpman, Richard P. Meisner, Matthew Donald, Thomas E. Case
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Patent number: 10196985Abstract: Systems and methods for controlling a fluid based engineering system are disclosed. The systems and methods may include a model processor for generating a model output, the model processor including a set state module for setting dynamic states of the model processor, the dynamic states input to an open loop model based on the model operating mode. The system may include a control law for directing the actuator as a function of a model output and for determining if the control device is operating with deteriorated conditions. The model processor may further include an estimate state module for determining an estimated state of the model based on a prior state model output and the current state model of an open loop model.Type: GrantFiled: March 14, 2014Date of Patent: February 5, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Boris Karpman, Richard P. Meisner
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Publication number: 20190031358Abstract: A method of controlling thrust for a gas turbine engine of an aircraft is provided. The method includes determining a fan speed required for minimum thrust to achieve an aircraft operation. The method also includes determining an excess amount of thrust generated by the gas turbine engine. The method also includes reducing the amount of thrust generated by the gas turbine engine.Type: ApplicationFiled: February 12, 2015Publication date: January 31, 2019Inventors: Kurt J. Sobanski, Richard P. Meisner, Robert J. Bengtson