US 11,893,328 B2 · Apparatus and method for simulating systems

Abstract

This application relates to apparatus and methods for generating, and executing, surrogate models. In some examples, a computing device generates and evaluates correlations between input and output variables for a system to identify highly correlated input and output parameters. In addition, weights for one or more of the parameters may be determined. The computing device identifies a mathematical relationship between input and output variables to generate a physics model. The computing device may also identify other features not captured by the physical relationship that are highly correlated to each other, and generates a feature model that is based on the highly correlated features. The computing device may optimize the feature model based on a culling process that reduces the computational resources required to execute the feature model. The physics model is then combined with the feature model to generate a system output model that can simulate the system.

Claims19

Dependent claims

A computing device configured to:

identify a mathematical representation of a system;
determine correlations between system input data and system output data of the system;
identify at least a portion of the system input data based on the correlations;
generate a first feature function with function input data based on the identified portion of the system input data, wherein the original feature function characterizes at least a portion of the system;
generate at least a second feature function with function input data based on a portion of the identified portion of the system input data for the first feature function;
determine an estimated error for each of the first feature function and the at least second feature function;
determine a final feature function based on the determined estimated errors;
and
generate a surrogate model for the system based on the mathematical representation of the system and the determined feature function.

6 more elements

A non-transitory computer readable medium having instructions stored thereon, wherein the instructions, when executed by at least one processor, cause a device to perform operations comprising:

identifying a mathematical representation of a system;
determining correlations between system input data and system output data of the system;
identifying at least a portion of the system input data based on the correlations;
generating a first feature function with function input data based on the identified portion of the system input data, wherein the original feature function characterizes at least a portion of the system;
generating at least a second feature function with function input data based on a portion of the identified portion of the system input data for the first feature function;
determining an estimated error for each of the first feature function and the at least second feature function;
determining a final feature function based on the determined estimated errors;
and
generating a surrogate model for the system based on the mathematical representation of the system and the determined feature function.

6 more elements

A system comprising:

a computing device configured to:
determine correlations between system input data and system output data of the system;
identify at least a portion of the system input data based on the correlations;
generate a first feature with function input data based on the identified portion of the system input data, wherein the original feature function characterizes at least a portion of the system,
generate at least a second feature function with function input data based on a portion of the identified portion of the system input data for the first feature function;
determine an estimated error for each of the first feature function and the at least second feature function;
determine a final feature function based on the determined estimated errors;
and
generate a surrogate model for the system based on the mathematical representation of the system and the determined feature function;
receive sensor data from an apparatus;
execute the surrogate model for the system;
determine a system state for the system based on the received sensor data and the execution of the surrogate model;
and
display the system state.

11 more elements

Dependencies are inferred from the claim text.

Apparatus and method for simulating systems

Life of this patent

Apparatus and method for simulating systems

Life of this patent

Abstract

Claims19