The Mathworks, Inc.

Bora Eryilmaz

Pascal Gahinet

Peter James Maloney

Zhiping You

Rong Chen

Baljeet Singh

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 rather than having to specify gain values for the controller, which may be difficult for a user to relate to the performance of a controller.

Automated PID controller design, using parameters that satisfy a merit function

Automated PID controller design

A device may include a first type of modeling environment, a second type of modeling environment, and an abstract interface. The first type of modeling environment may be associated with at least one of a first toolbox or a first function. The second type of modeling environment may include a model. The second type of modeling environment may be different than the first type of modeling environment and may be incompatible with the at least one of a first toolbox or a first function. The abstract interface may interface with the first type of modeling environment and the second type of modeling environment. The abstract interface may allow the at least one of a first toolbox or a first function to be used in the model in the second type of modeling environment.

Abstract interface for unified communications with dynamic models

The present invention provides a method and system for interfacing with a model regardless of model type. An abstract interface is provided for interfacing a model. The abstract interface is compatible with a plurality of model types. A call can then be made to a dynamic model via a method specified by the abstract interface. Data is then received from the dynamic model in response to the call. In certain embodiments the abstract interface is an application programming interface (API).

A system may include a memory to store a graphical block diagram model including a graphical block, the graphical block being associated with a lookup table and one or more inputs for receiving input data. The system may further include one or more processors to update data stored in the lookup table based on the received input data, where data stored in the lookup table includes data for simulating an embedded control system.

Adaptive lookup table: a graphical simulation component for recursively updating numeric data storage in table form

A graphical block that defines the functionality of a lookup table and can be used in a block diagram model to capture time-varying characteristics of a system's behavior in the lookup table is presented. The block uses input and output data of the system to dynamically create and update the contents of the underlying lookup table over time. More specifically, the block utilizes an adaptation process that uses the system (or plant) output data to recompute the table values. The adaptation process is implemented as a statistical and signal processing algorithm, such as Recursive Sample Means (RSM), Least Mean Squares (LMS) and Recursive Least-Squares (RLS). The adaptation can be cell-based or point based.

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Boston, MA, United States of America

Bora Eryilmaz