Model predictive control sub-system hydraulic flow management

    公开(公告)号:US10767506B2

    公开(公告)日:2020-09-08

    申请号:US16163292

    申请日:2018-10-17

    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.

    COMPACT AERO-THERMO MODEL BASED ENGINE MATERIAL TEMPERATURE CONTROL

    公开(公告)号:US20190107057A1

    公开(公告)日:2019-04-11

    申请号:US16205351

    申请日:2018-11-30

    Abstract: 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.

    Compact Aero-Thermo Model Based Engine Material Temperature Control
    14.
    发明申请
    Compact Aero-Thermo Model Based Engine Material Temperature Control 审中-公开
    基于紧凑型航空热模型的发动机材料温度控制

    公开(公告)号:US20160017814A1

    公开(公告)日:2016-01-21

    申请号:US14768002

    申请日:2014-03-14

    Abstract: 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, wherein the open loop model generates a current state model as a function of the dynamic states and the model input, wherein a constraint on the current state model is based a series of cycle synthesis modules, each member of the series of cycle synthesis modules modeling a component of a cycle of the control system and including a series of utilities, the utilities are based on mathematical abstractions of physical properties associated with the component. The series of utilities may include a material temperature utility for determining a material temperature associated with a component of the cycle of the control system 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.

    Abstract translation: 公开了用于控制基于流体的工程系统的系统和方法。 系统和方法可以包括用于生成模型输出的模型处理器,模型处理器包括用于设置模型处理器的动态状态的设置状态模块,基于模型操作模式输入到开环模型的动态状态,其中, 开环模型生成作为动态和模型输入的函数的当前状态模型,其中对当前状态模型的约束基于一系列循环综合模块,该系列循环综合模块的每个成员对 控制系统的一个循环并且包括一系列实用程序,该实用程序基于与组件相关联的物理属性的数学抽象。 一系列实用程序可以包括用于确定与控制系统的循环的组件相关联的材料温度的材料温度实用程序。模型处理器还可以包括用于基于先前状态模型来确定模型的估计状态的估计状态模块 输出和开环模型的当前状态模型。

    Model based engine inlet condition estimation
    15.
    发明授权
    Model based engine inlet condition estimation 有权
    基于模型的发动机进气条件估计

    公开(公告)号:US08720258B2

    公开(公告)日:2014-05-13

    申请号:US13631359

    申请日:2012-09-28

    CPC classification number: G01M15/14 G05B23/0254 G05B23/0297

    Abstract: A gas turbine engine inlet sensor fault detection and accommodation system comprises an engine model, an engine parameter comparison block, an inlet condition estimator, control laws, and a fault detection and accommodation system. The engine model is configured to produce a real-time model-based estimate of engine parameters. The engine parameter comparison block is configured to produce residuals indicating the difference between the real-time model-based estimate of engine parameters and sensed values of the engine parameters. The inlet condition estimator is configured to iteratively adjust an estimate of inlet conditions based on the residuals. The control laws are configured to produce engine control parameters for control of gas turbine engine actuators based on the inlet conditions. The fault detection and accommodation system is configured to detect faults in inlet condition sensors, select sensed inlet conditions for use by the control laws in the event of no fault, and select estimated inlet conditions for use by the control laws in the event of inlet condition sensor fault.

    Abstract translation: 燃气涡轮发动机入口传感器故障检测和调节系统包括发动机模型,发动机参数比较块,入口状态估计器,控制规律以及故障检测和调节系统。 引擎模型被配置为产生基于实时模型的发动机参数估计。 引擎参数比较块被配置为产生指示基于实时模型的发动机参数估计与发动机参数的感测值之间的差异的残差。 入口条件估计器被配置为基于残差迭代地调整入口条件的估计。 控制规则被配置为基于入口条件来生成用于控制燃气涡轮发动机执行器的发动机控制参数。 故障检测和调试系统被配置为检测入口状态传感器中的故障,选择在无故障情况下由控制规则使用的感应入口条件,并在入口条件下选择控制规则使用的估计入口条件 传感器故障。

    Transient control to extend part life in gas turbine engine

    公开(公告)号:US11293353B2

    公开(公告)日:2022-04-05

    申请号:US15610188

    申请日:2017-05-31

    Abstract: A full authority digital engine controller (FADEC) based system is also disclosed. The system includes a processor, and a tangible, non-transitory memory configured to communicate with the processor, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the FADEC to perform operations. The operations may include measuring a first temperature at a first sensor disposed at a first known location of an engine, measuring a second temperature at a second sensor disposed at a second known location of the engine, and estimating at least one of a stress or a strain of a part or component in the engine based on the first temperature and the second temperature. The system may control fuel flow and/or other engine effectors during a thrust transient to limit the estimated stress or the estimated strain of the component from exceeding a predetermined threshold.

    Adaptive anti-windup protection of cascaded inner and outer control loops

    公开(公告)号:US11079733B2

    公开(公告)日:2021-08-03

    申请号:US16395971

    申请日:2019-04-26

    Abstract: A method of adaptive anti-windup protection for a control system with cascaded inner control loop and an outer control loops. The method includes receiving an outer loop feedback signal indicative of the response of a plant controlled by the outer control loop and calculating an inner control loop request such that, it would cause saturation of the control device controlled by the inner control loop. The method also includes converting the calculated inner loop request to outer loop anti-windup request limits using kinematic relationships and transmitting the outer loop anti-windup request limits to a controller of the outer control loop. The method may also include applying the outer loop anti-windup request limits to a controller of the outer control loop to limit the inner loop request generated thereby, and executing an outer control loop control law and an inner control loop control law subject to the anti-windup request limits.

    SYSTEMS AND METHODS FOR POWER TURBINE GOVERNING

    公开(公告)号:US20190309689A1

    公开(公告)日:2019-10-10

    申请号:US15945556

    申请日:2018-04-04

    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.

    ON-BOARD ESTIMATOR SENSOR DRIFT DETECTION IN ENGINE CONTROL

    公开(公告)号:US20190226354A1

    公开(公告)日:2019-07-25

    申请号:US15879849

    申请日:2018-01-25

    Abstract: 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).

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