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| Application No. | Application Title | Issue Date |
| 20120053705 | SYSTEM AND METHOD FOR FEEDBACK CONTROL A system and method for controlling a plant having a minimum phase transfer function P(s) and given an input signal u, the plant having an output y and a plant frequency range comprising a transfer function J(s) comprising the product of a high gain filter J1... | 03/01/2012 |
| 20120041573 | DYNAMIC GAIN CONTROLLER AND CONTROL METHOD FOR A CONTROL PLANT A dynamic gain controller for providing an adjust value for a control plant to control an output value of the control plant, detects an error value between a feedback value related to the output value and an input reference value, and compares the error value with a thr... | 02/16/2012 |
| 20120035747 | SCALING AND PARAMETERIZING A CONTROLLER Controller scaling and parameterization are described. Techniques that can be improved by employing the scaling and parameterization include, but are not limited to, controller design, tuning and optimization. The scaling and parameterization methods described here appl... | 02/09/2012 |
| 20110029100 | SYSTEMS AND METHODS FOR IMPROVED START-UP IN FEEDBACK CONTROLLERS A system for controlling start-up of a feedback controller includes a memory device and a processing circuit. The processing circuit is configured to receive a gain parameter from the feedback controller and to store the gain parameter in the memory device. The processi... | 02/03/2011 |
| 20100312365 | ADAPTIVE NOTCH FILTER The control of flexible systems is often difficult due to the exact frequencies of the elastic modes being hard to identify. These flexible modes may change over time, or vary between units of the same system. The variation in the modal dynamics may cause a degradation ... | 12/09/2010 |
| 20100312364 | AUTOMATED PID CONTROLLER DESIGN Embodiments provide techniques, computer-readable media, and devices for allowing users to perform interactive design of controllers, such as PID controllers, in a free-form modeling environment. Users can tune controllers using characteristics familiar to typical users... | 12/09/2010 |
| 20100292813 | Method and Apparatus for Tuning a PID Controller In tuning a PID controller for a process in a feedback control system, a method is provided for bringing the system into symmetric self-excited oscillations for measuring the frequency and the amplitude of the oscillations, and tuning the controller in dependence on the... | 11/18/2010 |
| 20100268354 | POSITION CONTROL METHOD, POSITION CONTROL DEVICE, AND MEDIUM STORAGE DEVICE HAVING DISTURBANCE SUPPRESSION FUNCTION In a position control device having a disturbance suppression function, loop gain is calibrated without stopping disturbance suppression control. The position control device has, for disturbance suppression control, a feedback controller for changing the loop characteri... | 10/21/2010 |
| 20100057224 | SYSTEMS AND METHODS FOR VIBRATION RECTIFICATION ERROR REDUCTION IN CLOSED-LOOP ACCELEROMETER SYSTEMS Systems and methods for controlling a closed-loop accelerometer system. A system includes an accelerometer with a driver that responds in a nonlinear manner and a rebalancing controller in signal communication with the driver. The rebalancing controller includes a propo... | 03/04/2010 |
| 20100050171 | RESOURCE MANAGEMENT SYSTEM AND APPARATUS A computer implemented method for efficiently allocating resources for an enterprise server system through a proportional integral derivative scheme is provided. The method includes defining a set point parameter for a resource being allocated and defining a proportiona... | 02/25/2010 |
| 20100036510 | ELECTRONIC MOTOR CONTROLLER A control system for any type of electric motor that automatically learns the characteristics of the motor and computes a motor model for the motor. The control system uses the computed motor model to produce a closed-loop control design that achieves a particular resol... | 02/11/2010 |
| 20090319060 | Continuously Scheduled Model Parameter Based Adaptive Controller An adaptive process controller performs continuously scheduled process model parameter interpolation to determine a particular set of process model parameters which are used to develop controller tuning parameters for controller tuning. More particularly, a state-based,... | 12/24/2009 |
| 20090312852 | AUTO-TUNING ELECTRO-HYDRAULIC VALVE A flow control valve includes a housing that includes a fluid inlet, a fluid outlet, a first work port and a second work port. The housing defines a spool bore and a pilot spool bore. A main stage spool is disposed in the spool bore. A pilot stage spool is disposed in t... | 12/17/2009 |
| 20090210081 | SYSTEM AND METHOD FOR DYNAMIC MULTI-OBJECTIVE OPTIMIZATION OF MACHINE SELECTION, INTEGRATION AND UTILIZATION The invention provides control systems and methodologies for controlling a process having computer-controlled equipment, which provide for optimized process performance according to one or more performance criteria, such as efficiency, component life expectancy, safety,... | 08/20/2009 |
| 20090138102 | METHOD AND DEVICE FOR TUNING AND CONTROL A method and a device for tuning and control of industrial processes having varying material flow rate. An adder is configured to add excitation signals to the controller output signal. A measurement system is configured to measure a property in response to the excitati... | 05/28/2009 |
| 20080281437 | Initializing an estimation of dynamic model parameters The present disclosure relates to monitoring of electromechanical oscillations in electric power systems, and their identification by an adaptive algorithm based on a repeatedly measured and evaluated signal. In order for an estimation of parameters of a model of the po... | 11/13/2008 |
| 20080224792 | Methods and apparatuses for suppressing interference Embodiments of the invention provide an adaptive notch filter that employs a power detector as a feedback control mechanism to steer the notch filter. One such embodiment of the invention provides adaptive control of the notch filter capacitor to tune the notch filter f... | 09/18/2008 |
| 20080114472 | Autotuning method using integral of relay feedback response for extracting process information An autotuning method using an integral of a relay feedback response is disclosed, which obtains an ultimate data and frequency model of a process with greatly removing effects of harmonics by using integral of a relay feedback signal. The autotuning method using an inte... | 05/15/2008 |
| 20080065240 | Position control method, position control device, and medium storage device having disturbance suppression function In a position control device having a disturbance suppression function, loop gain is calibrated without stopping disturbance suppression control. The position control device has, for disturbance suppression control, a feedback controller for changing the loop characteri... | 03/13/2008 |
| 20070276512 | Automatic tuning method for multivariable model predictive controllers A fast and reliable technique for tuning multivariable model predictive controllers (MPCs) that accounts for performance and robustness is provided. Specifically, the technique automatically yields tuning weights for the MPC based on performance and robustness requireme... | 11/29/2007 |
| 20070276545 | Adaptive response time closed loop control algorithm A system and method for controlling a flow of a fluid using an adaptive closed-loop-control algorithm is described. One embodiment includes a method for receiving a set point indicator and/or a sensor indicator generated by a sensor. A response time of a closed-loop-con... | 11/29/2007 |
| 20070268068 | Automating tuning of a closed loop controller The present invention is a novel device, system, and method for simultaneous selection of filters and loop proportional gain for a closed loop system. According to an exemplary embodiment of the present invention, a method provides an automated selection of the portion ... | 11/22/2007 |
| 20070250186 | Robust Digital Controller and Its Designing Device A robust digital controller is equipped with a high degree of approximation and is able to incorporate a novel two-degree-of-freedom robust digital control system without substantially considering the magnitude of the control inputs and there is provided its designing d... | 10/25/2007 |
| 20070227773 | Positioning control system for moving element and laser drilling machine A positioning control system for positioning a moving element on a basis of position command data is provided with a feedback loop. The system is also provided with a loop gain modifier for determining a loop gain, which is to be used in a following positioning operatio... | 10/04/2007 |
| 20070185593 | Control device There is realized a control device capable of speeding up an output response without causing deterioration in the resolution of a time-proportional output. The control device controls a control object at a ratio of ON-time to OFF-time for a time-proportional output. The... | 08/09/2007 |
| 20070100476 | Automated tuning of large-scale multivariable model predictive controllers for spatially-distributed processes An automated tuning method of a large-scale multivariable model predictive controller for multiple array papermaking machine cross-directional (CD) processes can significantly improve the performance of the controller over traditional controllers. Paper machine CD proce... | 05/03/2007 |
| 20070078533 | Process model identification in a process control system Disclosed is a method of controlling and managing a process control system having a plurality of control loops. The method includes implementing a plurality of control routines to control operation of the plurality of control loops, respectively. The plurality of contro... | 04/05/2007 |
| 20070073422 | On-demand auto-tuner for a plant control system A method to automatically tune control systems, the method comprising selecting a target loop transfer function for at least one plant subsystem in response to an input excitation, selecting at least one fit-error criterion for a plant subsystem transfer function, and a... | 03/29/2007 |
| 20070043451 | Method and circuit arrangement for the precise dynamic digital control of especially piezoelectric actuators for micropositioning systems The invention relates to a method and a circuit arrangement for the precise, dynamic, digital control of especially piezoelectric actuators for micropositioning systems, comprising a regulator, whereby in order to minimise position order deviations the future system beh... | 02/22/2007 |
| 20070021850 | State Based Adaptive Feedback Feedforward PID Controller A state based adaptive feedback/feedforward PID controller includes a model set component, communicatively coupled to a process input, having a state variable defining a number of process regions, and a number of models grouped into the process regions. Each of the grou... | 01/25/2007 |
| 20070021849 | Program and/or method for calculating tuning parameters for numerical computation library When a parameter for a numerical computation library is required, an optimum parameter reflecting a user policy is provided. A program calculates, based on a preset objective function, an optimum tuning parameter for executing a numerical computation library. The progra... | 01/25/2007 |
| 20070010901 | Constraint-based solution method, constraint-based solver and constraint-based solution system The purpose is to solve target problems in short calculation time certainly without describing algorithms that are data procedures on computers. As the solution method, because it is configured so that, when the initial values or variation values, which are used for con... | 01/11/2007 |
| 20060276915 | Self compensating closed loop adaptive control system An adaptive control system is described. The system includes a control having a plurality of control parameters, the control parameters providing for control of an associated plant. The control parameters are tuned using a prediction error filter, the prediction error f... | 12/07/2006 |
| 20060265085 | Tuning methods for fractional-order controllers A method for tuning a fractional-order proportional-integral (PI) controller | |
| 20060241786 | Method and apparatus for approximating gains in dynamic and steady-state processes for prediction, control, and optimization A method and apparatus for controlling a non-linear mill. A linear controller is provided having a linear gain k that is operable to receive inputs representing measured variables of the plant and predict on an output of the linear controller predicted control values fo... | 10/26/2006 |
| 20060190100 | Prevention of integrator wind-up in PI type controllers A control system having an integrator component that provides an integrator output signal used to control a load, and a method controlling the same includes conditioning the integrator component during a fraction of the period in which it would tend to otherwise wind-up... | 08/24/2006 |
| 20060122714 | Nonlinear system observation and control An observation system configured to observe at least one known state variable of an observed system includes a plurality of filters that are configured to receive a system input, and generate the at least one unknown state variable. Generating the unknown state variable... | 06/08/2006 |
| 20060100721 | Non-linear model with disturbance rejection Non-linear model with disturbance rejection. A method for training a non linear model for predicting an output parameter of a system is disclosed that operates in an environment having associated therewith slow varying and unmeasurable disturbances. An input layer is pr... | 05/11/2006 |
| 20060069455 | Process device with diagnostic annunciation A process device for coupling to a two-wire process control loop includes diagnostic circuitry configured to identify a failure or reduced level of performance or provide a prediction of a future failure or reduced level of performance. An output coupled to the two-wire... | 03/30/2006 |
| 20060069454 | Control system A compensating controller for controlling a non-linear parameter of an industrial process in a control system for said process comprises means (106) for producing a weighted linear response, means (108, 24) for producing a weighted non-linear response, and... | 03/30/2006 |
