METHOD FOR DETERMINING AIRCRAFT SENSOR FAILURE WITHOUT A REDUNDANT SENSOR AND CORRECT SENSOR MEASUREMENT WHEN REDUNDANT AIRCRAFT SENSORS GIVE INCONSISTENT READINGS

摘要

A computer implemented method to determine aircraft sensor failure and correct aircraft sensor measurement in an aircraft system is provided. The computer implemented method includes determining, using a physics-based high-fidelity model, a high-fidelity system response over operating conditions during which sensor drift of a sensor of interest can be detected, creating, using an aircraft system controller, a reduced order model (ROM) using the high-fidelity system response, wherein the ROM correlates with the sensor of interest when operating normally, calculating, using the ROM, at least one reduced order sensor value, determining an error value between the reduced order sensor value and a sensor measurement reading from the sensor of interest, and comparing the error value to an error threshold, wherein the sensor of interest has failed when the error value is greater than the error threshold.