Model-based detection, diagnosis of turbine engine faults

Details Model-based detection, diagnosis of turbine engine faults Model-based detection, diagnosis of turbine engine faults

2006-06-13

2006-06-13

Zanelli, Michael J. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S029000

Reexamination Certificate

active

07062370

ABSTRACT:
A method of monitoring turbine engines used in aircraft from sensor signals from an engine for a predetermined set of engine characteristics. The signals are transmitted to a nonlinear engine model that predicts the output values for the given set of engine characteristics. The model generates residuals by calculating the difference between the actual values and the predicted values for each member of the set. The generated residuals are evaluated to estimate bounds of uncertainties as indicative of sensor noise. Incoming residuals from ongoing actual engine values are continuously tested against the bounds. A fault is signaled for each of the set of characteristics when a detected bound is exceeded. A computer is used to calculate the fault residual for each of the set of characteristics and the closest fault residual is selected as a diagnosed fault.

REFERENCES:
patent: 5018069 (1991-05-01), Pettigrew
patent: 6014598 (2000-01-01), Duyar et al.
patent: 6016465 (2000-01-01), Kelly
patent: 6466858 (2002-10-01), Adibhatla et al.
patent: 6574537 (2003-06-01), Kipersztok et al.
patent: 6625569 (2003-09-01), James et al.
Diversi et al.; Residual design for dynamic processes using decoupling technique; IEEE; Decision and Control, 2003; vol. 1, pp. 451-456; Dec. 19, 2003.
Marcos et al.; Robust identification and residual generation application to a turbofan engine; IEEE: Aerospace Conference, 2004; vol. 5, pp. 3384-3395; Mar. 6, 2004.

Affiliated with

Also associated with

Rating

Model-based detection, diagnosis of turbine engine faults does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Model-based detection, diagnosis of turbine engine faults, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Model-based detection, diagnosis of turbine engine faults will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3696799