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    OPTIMAL THRUST CONTROL OF AN AIRCRAFT ENGINE
    1.
    发明申请
    OPTIMAL THRUST CONTROL OF AN AIRCRAFT ENGINE 审中-公开

    公开(公告)号：US20200025130A1

    公开(公告)日：2020-01-23

    申请号：US16377488

    申请日：2019-04-08

    Applicant: United Technologies Corporation

    Inventor： Chaohong Cai ,  Timothy J. Crowley ,  Mark E. Lacour ,  David Lei Ma

    IPC: F02K1/17 ,  F02C9/00 ,  F02C9/54 ,  F02C9/50

    Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a nozzle scheduler for determining an exhaust nozzle position goal based on a nozzle schedule of exhaust nozzle positions related to flight conditions. The control system may further include a control module for determining a control command for the gas turbine engine. The control command may include, at least, a fuel flow command and an exhaust nozzle position command and the control command may be based on, at least, the exhaust nozzle position goal and an estimated thrust value. The control system may further include an actuator for controlling the gas turbine engine based on the control command.

    Optimal thrust control of an aircraft engine
    3.
    发明授权
    Optimal thrust control of an aircraft engine 有权

    公开(公告)号：US10711734B2

    公开(公告)日：2020-07-14

    申请号：US16377488

    申请日：2019-04-08

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Chaohong Cai ,  Timothy J. Crowley ,  Mark E. Lacour ,  David Lei Ma

    IPC: F02K1/17 ,  F02C9/50 ,  F02C9/54 ,  F02C9/00

    Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a nozzle scheduler for determining an exhaust nozzle position goal based on a nozzle schedule of exhaust nozzle positions related to flight conditions. The control system may further include a control module for determining a control command for the gas turbine engine. The control command may include, at least, a fuel flow command and an exhaust nozzle position command and the control command may be based on, at least, the exhaust nozzle position goal and an estimated thrust value. The control system may further include an actuator for controlling the gas turbine engine based on the control command.

    SYSTEMS AND METHODS FOR OPTIMAL SPEED PROTECTION FOR POWER TURBINE GOVERNING
    4.
    发明申请
    SYSTEMS AND METHODS FOR OPTIMAL SPEED PROTECTION FOR POWER TURBINE GOVERNING 审中-公开

    公开(公告)号：US20190338754A1

    公开(公告)日：2019-11-07

    申请号：US15971300

    申请日：2018-05-04

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Chaohong Cai ,  Timothy J. Crowley ,  David Lei Ma ,  Richard P. Meisner

    IPC: F03D7/04 ,  F03D7/02

    Abstract: 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.

    Adaptive model predictive control for hybrid electric propulsion
    5.
    发明授权
    Adaptive model predictive control for hybrid electric propulsion 有权

    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

    IPC: F02C9/00 ,  B64D27/02

    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.

    Systems and methods for optimal speed protection for power turbine governing
    7.
    发明授权
    Systems and methods for optimal speed protection for power turbine governing 有权

    公开(公告)号：US11092136B2

    公开(公告)日：2021-08-17

    申请号：US15971300

    申请日：2018-05-04

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Chaohong Cai ,  Timothy J Crowley ,  David Lei Ma ,  Richard P Meisner

    IPC: F01D17/04 ,  F03D7/04 ,  F03D7/02

    Abstract: 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.

    ADAPTIVE MODEL PREDICTIVE CONTROL FOR HYBRID ELECTRIC PROPULSION
    8.
    发明申请
    ADAPTIVE MODEL PREDICTIVE CONTROL FOR HYBRID ELECTRIC PROPULSION 审中-公开

    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

    IPC: F02C9/00 ,  B64D27/02

    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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