Patent ID: 7693643

Claim:
A fault detection system for detecting faults in a turbine engine fuel system, the fault detection system comprising: a sensor data processor, the sensor data processor configured to receive sensor data from the turbine engine and select a subset of sensor data, the subset of sensor data including time at lightoff, time at peak engine temperature rate of change, engine speed at lightoff time, engine speed at peak engine temperature rate of change time, engine speed at 3 rd phase time, engine temperature at time of peak engine temperature rate of change, engine speed rate of change at 3 rd phase time, engine temperature rate of change at lightoff time and engine temperature rate of change at 3 rd phase time; a feature extractor, the feature extractor configured to receive the subset of sensor data and generate principal components from the time at lightoff, the time at peak engine temperature rate of change, the engine speed at lightoff time, the engine speed at time of peak engine temperature rate of change, the engine speed at 3 rd phase time, the engine temperature at peak engine temperature rate of change time, the engine speed rate of change at 3 rd phase time, the engine temperature rate of change at light off time and the engine temperature rate of change at 3 rd phase time; and a classifier, the classifier configured to receive the generated principal components and classify the principal components to determine if a fault occurred in the turbine engine fuel system.