| Autor: |
E. Y. Chow, Alan S. Willsky, J. C. Deckert, Mukund Desai, John J. Deyst |
| Rok vydání: |
1976 |
| Předmět: |
|
| Zdroj: |
Guidance and Control Conference. |
| DOI: |
10.2514/6.1976-1976 |
| Popis: |
An onboard failure detection and identification (FDI) technique for dual redundant sensors on the NASA F8C digital fly-by-wire (DFBW) aircraft is presented. The failure of one of a pair of sensors of the same type is detected by a direct redundancy trigger which observes the difference between the outputs of these two sensors. Identification of the failed sensor is accomplished utilizing the analytic redundancy that exists as kinematic and functional relationships among the variables being measured by dissimilar instruments. In addition, identification of generic failures, common to both instruments of a given type, is accomplished by using a time trigger to periodically initiate analytic redundancy failure identification tests for individual sensors. The basic form of these tests is the comparison of the measurement of a variable using the suspect instrument with another measurement of the same variable obtained using other instrument types. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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