A real-time FORTRAN implementation of a sensor failure detection, isolation and accommodation algorithmAn advanced, sensor failure detection, isolation, and accomodation algorithm has been developed by NASA for the F100 turbofan engine. The algorithm takes advantage of the analytical redundancy of the sensors to improve the reliability of the sensor set. The method requires the controls computer, to determine when a sensor failure has occurred without the help of redundant hardware sensors in the control system. The controls computer provides an estimate of the correct value of the output of the failed sensor. The algorithm has been programmed in FORTRAN using a real-time microprocessor-based controls computer. A detailed description of the algorithm and its implementation on a microprocessor is given.
Document ID
19850065553
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Delaat, J. C. (NASA Lewis Research Center Cleveland, OH, United States)