US 2010/0168951 A1 · APPARATUS AND METHOD FOR DETECTING OPERATIONAL ISSUES BASED ON SINGLE INPUT SINGLE OUTPUT SYSTEM DYNAMICS

Abstract

Methods and apparatus are provided for detecting an anomaly in fuel demand data and fuel supply data generated by a fuel metering system for an engine. The method comprises collecting the fuel demand data and the fuel supply data during operation of the fuel metering system, generating expected fuel supply data based on the collected fuel demand data and a nominal response model describing the expected behavior of the fuel metering system, and detecting the anomaly if a difference between the expected fuel supply data and the collected fuel supply data exceeds a predetermined threshold.

Claims20

Dependent claims

A method for detecting an anomaly in fuel demand data and fuel supply data generated by a fuel metering system for an engine, the method comprising:

collecting the fuel demand data and the fuel supply data during operation of the fuel metering system;
generating expected fuel supply data based on the collected fuel demand data and a nominal response model describing the expected behavior of the fuel metering system;
and
detecting the anomaly if a difference between the expected fuel supply data and the collected fuel supply data exceeds a predetermined threshold.

1 more element

A computer readable medium having instructions stored thereon that when executed by a processor cause the processor to perform a method for determining a nominal response model describing a single input single output (SISO) system, the method comprising:

selecting non-anomalous data sets from a plurality of data sets stored on a historical data source, wherein each selected data set includes system input data and system output data for the SISO system;
and
determining a nominal response model for generating expected system output data based on the system input data from the selected data sets, wherein the difference between the expected system output data and the system output data from the selected data sets is minimized.

Dependencies are inferred from the claim text.

Apparatus and method for detecting operational issues based on single input single output system dynamics

Life of this patent

Apparatus and method for detecting operational issues based on single input single output system dynamics

Life of this patent

Abstract

Claims20