1985-10-01

Application of Analytical Redundancy 851825

Analytical redundancy involves the use of diagnostic routines in software to detect a fault in a set of sensor signals. The fault detection algorithms and associated redundancy management structure are presented within. The DIGIT AC application improved the mission reliability of existing dual mission-essential sensors by effecting a single-fail-operative capability. Flight safety was preserved for single sensors. Fault detection qualities of the diagnostics were satisfactory. False alarm problems required considerable redesign and tuning to properly model the processes. These problems were satisfactorily solved with the exception of diagnostic errors occurring during extreme turbulence (e.g., penetration of jetwash).

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X