| LI Chen, HAO Bin-bin, ZUO Wei, HE Jia-yin, WU Xin, GAO Kai.Design of Air-data Parameters Processing System for Aeroengine Thrust Control[J].航空发动机,2023,49(1):151-157 |
| Design of Air-data Parameters Processing System for Aeroengine Thrust Control |
| DOI： |
| Key Words:air-data parameters thrust control fault diagnosis fault tolerance signal voting aeroengine |
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| Abstract:In order to meet the thrust control matching requirements of multi-engine aircraft and improve the reliability of airborne
control parameters, an air-data parameters processing system for multi-engine aircraft was designed. Based on the analysis of engine thrust
control requirements and related airworthiness requirements, the system design principles were determined. Using the limited hardware re?
sources of aircraft and engines, a redundant air-data parameters processing system architecture suitable for multi-engine aircraft was pro?
posed. For signals from different sources, the corresponding signal fault diagnosis algorithm, voting algorithm and multi-source signals fault
switching logic were designed to ensure timely switching over to valid signal in case of a signal fault. The fault tolerance of the system in the
event of signal fault was verified by simulation and test. The results show that the system redundancy design is reasonable, the fault diagno?
sis and voting logic are effective, and the reliability and safety of air-data parameters are improved. In case of signal fault, fault reconstruc?
tion can be realized, and the thrust change generated in the switching process is less than 3%. |
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