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8180464 |
Extended active disturbance rejection controller
Multiple designs, systems, methods and processes for controlling a system or plant using an extended active disturbance rejection control (ADRC) based controller are presented. The extended ADRC...
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8180471 |
Tuning a process controller based on a dynamic sampling rate
A method for estimating a state of a process implemented by a tool for fabricating workpieces includes collecting metrology data associated with a subset of workpieces processed in the tool. The...
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8140174 |
Device and method for controlling a plant by using an identifier for partially identifying a model parameter
A control apparatus that can partially identify model parameters is provided. The apparatus for controlling an object that is modeled using at least one first model parameter and at least one...
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8131400 |
Adaptive on-tool mass flow controller tuning
One embodiment comprises a method of providing accurate mass flow controller flow rate data for a non-manufacturing-tuning-gas. The mass flow controller may be operated at a setpoint greater than...
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8086328 |
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...
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8073556 |
System and method for controlling a machine
A system for controlling a machine includes a first controller, a second controller, and a comparator. During a first cycle, the first controller generates a control signal to the machine while the...
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8046091 |
Control parameters for searching
An optimum control parameter in control of an internal combustion engine and the like is searched. In a plurality of search cycles, a control parameter that maximizes an output of an object to be...
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8041436 |
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...
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8036762 |
Adaptive compensation in digital power controllers
Complex filters may be used to achieve compensation of a plant, corresponding for example to a power regulator or point-of-load (POL) regulator. Digital filter coefficients may be mapped to...
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8032237 |
Correction signal capable of diminishing a future change to an output signal
This document describes a correction signal usable to correct an effect of a disturbance signal on a controlled system or apparatus. In one case this document describes ways in which to diminish a...
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8019492 |
Operator fine tracking assist using sensor derived inputs
A preferred embodiment of a method for fine-tracking operator assistance for controlling movement of an object toward a target combines an operator input for guiding the object toward the target...
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7986118 |
Open-loop torque control on joint position-controlled robots
A joint of a robot is controlled by a torque command. The joint has a position controller with a position feedback loop. The torque command is received for the joint, and a velocity feedforward...
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7979143 |
Apparatus and method for proportional-integral-derivative control
A PID controlling apparatus and method for providing a control value to a control object according to the difference between an output value of the control object and a target value are provided,...
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7953502 |
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...
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7925362 |
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...
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7920930 |
Process for rapidly controlling a process variable without overshoot using a time domain polynomial feedback controller
A method for controlling a process variable as it approaches a predetermined value (setpoint) so that the setpoint is not exceeded. The method employs a time domain polynomial equation in a...
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7920929 |
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...
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7873938 |
Method for constructing a variable bitwidth video processor
A method for designing a video processor with a variable and programmable bitwidth parameter. The method comprises selecting logical operations having propagation delay that scales linearly with...
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7866403 |
Work string controller
Well bore servicing equipment is provided. The well bore servicing equipment comprises a first manipulator to grip a well bore work string, to raise the work string, and to lower the work string....
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7865254 |
Modeling of control systems with open-loop representations and factorization of components
A method of manipulating a block diagram model with a plurality of graphical modeling components by defining an open loop anywhere on the block diagram model is provided. Graphical modeling...
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7860585 |
Heat processing apparatus, method of automatically tuning control constants, and storage medium
A heat processing apparatus includes a reaction vessel, a heating unit in the reaction vessel to heat the processing region, a temperature detector that detects temperature in the processing...
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7860595 |
Production schedule creation device and method, production process control device and method, computer program, and computer-readable recording medium
A production schedule creation device includes: a production simulator (100) simulating a production process expressing the production state and the production constraint of the production process;...
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7856281 |
On-line adaptive model predictive control in a process control system
A method of creating and using an adaptive DMC type or other MPC controller includes using a model switching technique to periodically determine a process model, such as a parameterized process...
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7848840 |
Method of controlling process parameters for semiconductor manufacturing apparatus
Methods and systems for adaptively controlling process parameters in semiconductor manufacturing equipment. An embodiment provides for gain scheduling of PID controllers across recipe steps. One...
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7840287 |
Robust process model identification in model based control techniques
A robust method of creating process models for use in controller generation, such as in MPC controller generation, adds noise to the process data collected and used in the model generation process....
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7809534 |
Enhanced simulation models for automation
A simulation tool for an industrial automation system is provided. The tool includes a simulation component that simulates one or more components of an industrial control system. At least one...
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7787978 |
Apparatus and method for controller performance monitoring in a process control system
An apparatus, method, and computer program are provided for controller performance monitoring in a process control system. A level of disturbance associated with the process system is determined,...
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7668606 |
Control device for controlling a control object at a ratio of on-time to off-time for a time-proportional output
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...
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7650195 |
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...
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7630779 |
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...
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7620462 |
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...
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7610108 |
Method and apparatus for attenuating error in dynamic and steady-state processes for prediction, control, and optimization
A method for providing independent static and dynamic models in a prediction, control and optimization environment utilizes an independent static model (20) and an independent dynamic model (22)....
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7603186 |
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...
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7546170 |
Easily tuned and robust control algorithm for single or multiple variable systems
A controller and associated methods. A controller has an input for a controlled variable; a proportional term; an integral term; and a predictive term. The predictive term has an error-predictive...
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7542810 |
System and method for user controllable PID autotuning and associated graphical user interface
A system and method for user configuration of an autotuning algorithm for a PID controller. User input is received via a Graphical User Interface (GUI) indicating a desired characteristic of a PID...
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7496414 |
Dynamic controller utilizing a hybrid model
A system and method for predicting operation of a plant or process receive an input value from the plant or process. An integrity of a non-linear model corresponding to a local input space of the...
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7496041 |
High speed auto-tuning loop
An auto-tuner is adapted to be used in a distributed process control network having a communications network that communicatively couples a process controller, which executes a process control...
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7457673 |
Process for rapidly controlling a process variable without overshoot using a time domain polynomial feedback controller
A method for controlling a process variable as it approaches a predetermined value (setpoint) so that the setpoint is not exceeded. The method employs a time domain polynomial equation in a...
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7451004 |
On-line adaptive model predictive control in a process control system
A method of creating and using an adaptive DMC type or other MPC controller includes using a model switching technique to periodically determine a process model, such as a parameterized process...
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7418301 |
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...
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7400933 |
SISO model predictive controller
A method of predictive control for a single input, single output (SISO) system, including modeling the SISO system with model factors, detecting output from the SISO system, estimating a filtered...
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7395125 |
Method and controller for the adaptive control of at least one component of a technical plant
The invention relates to a method in which at least one component of a technical plant is controlled by means of a PI controller. The actual value of the regulating parameter is continuously...
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7380564 |
System and method for a mass flow controller
A system and method for controlling a mass flow controller to have a constant control loop gain under a variety of different types of fluids and operating conditions, and for configuring the mass...
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7346401 |
Systems and methods for providing constrained optimization using adaptive regulatory control
Systems and methods are provided for optimizing the performance and/or allocation of constrained resources in a dynamic computing environment using adaptive regulatory control methods. For example,...
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7346402 |
Technique for an integrated and automated model generation and controller tuning process
A method, apparatus and computer program product for performing integrated model generation and controller tuning is presented. The method, apparatus, and computer program product acquires data...
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7328075 |
Method of automatic adjustment of the control parameters of a magnetic suspension system
In adjustment of the control parameters of a magnetic suspension system, an object of the present invention is to provide a technique for adjusting the control parameters to optimum values...
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7321801 |
Automatic gain adjustment device and automatic gain adjustment method
An automatic gain adjustment device and method capable of accurately adjusting a gain with a simple structure. In an automatic gain adjustment method of a feedback control system that uses a phase...
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7262978 |
Voltage conversion apparatus, voltage conversion method, and computer-readable recording medium with program recorded thereon to allow computer to execute voltage conversion control
A control device receives an output voltage of a voltage-up converter from a voltage sensor, and calculates a feedback preliminary voltage control value determined by the difference between a...
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7231266 |
Digital control device and program
A digital control device for tracking a sine wave according to the present invention has a compensator, a control object and a feedback gain. An input into the compensator is a signal obtained by...
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7218974 |
Industrial process data acquisition and analysis
A method for optimizing an industrial process data is disclosed. The method includes collecting data from a plurality of sensor elements, wherein each sensor element collects data from a portion of...
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