US 8,620,461 B2Granted

Method and system for updating tuning parameters of a controller

AssigneeHoneywell International Inc.

InventorDejan Kihas

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Abstract

A method and system for updating tuning parameters associated with a controller without repetitive compilation of a controller code. The controller code represents an algorithm associated with the controller and can be compiled separately from a data set representing a solution for an optimization problem and also from a data set representing parameters required for prediction. The algorithm can be implemented in a programming language code suitable for implementation on an embedded platform or other types of computer platforms. The data sets can be represented in a specified data structure and the variables associated with the data structure can be declared in the controller template code. The variables can be updated independently without varying the compiled code associated with the controller algorithm that is referring to the variables. The controller can also be updated while the controller actively performs online. Such an approach enables repetitive tuning of the controller without repetitive compilation of the code representing the controller algorithm.

Claims10

Dependent claims

A system for updating tuning parameters of a controller, said system comprising:

a controller accessing a memory having one or more memory units for storing a first data set for use with a compiled controller template and a second data set for use with the compiled controller template;
a processor;
a computer-usable medium embodying computer program code, said computer program code comprising instructions executable by said processor and configured for:
identifying a compiled controller template for operating the controller, the compiled controller template including an algorithm representing a dynamic operating process of a system to be controlled by the controller;
generating the first data set indicative of an explicit control law associated with a solution to a model predictive control optimization problem related to the dynamic operating process of the system, wherein the first data set is associated with a specified data structure having said at least one data set;
and
updating variables to generate a second data set, separate from the first data set;
and
enabling the controller to switch from using the first data set to using the second data set without altering said compiled controller template in order to repeatedly tune said controller without performing a recompilation with respect to said compiled controller template.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/565,873Filed 24 Sep 2009
Published: US 2011/0071653 A124 Mar 2011
Granted: 31 Dec 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G05B 13/042
Involving the use of models or simulators: in which a parameter or coefficient is automatically adjusted to optimise the performance
G05B 13/048
Involving the use of models or simulators: using a predictor
G05B 17/02
Systems involving the use of models or simulators of said systems: electric
G05B
Control or regulating systems in general