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http://dx.doi.org/10.5139/JKSAS.2007.35.10.940

Throughput Improvement and Power-Interruption Consideration of Fly-By-Wire Flight Control Computer  

Lee, Cheol (한국항공우주산업(주) 비행역학팀)
Seo, Joon-Ho (한국항공우주산업(주) 비행역학팀)
Ham, Heung-Bin (한국항공우주산업(주) 비행역학팀)
Cho, In-Je (한국항공우주산업(주) 비행역학팀)
Woon, Hyung-Sik (국방과학연구소 비행역학팀)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.35, no.10, 2007 , pp. 940-947 More about this Journal
Abstract
For the performance upgrade of a supersonic jet fighter, the processor and FLCC(Flight Control Computer) Architecture were upgraded from a baseline FLCC. Prior to the hardware implementation phase, the exact CPU throughput estimation is necessary. For this purpose, an experimental method for new FLCC throughput estimation was introduced in this study. While baseline FLCC operating, the CPU address bus was collected with logic analyzer, and then decoded to get the exact access times to each memory-memory and the number of program Instruction branches. Based on these data, a throughput test in CPU demo-board of the new FLCC configuration was performed. From test results, the CPU-Memory architecture was design-changed before FLCC hardware implementation phase. To check the flight stability degradation due to power-interrupt problem due to CPU-Memory architecture change, the piloted HILS (Hardware-In-the Loop Simulator) test was conducted.
Keywords
Fly-By-Wire FLCC; Throughput; OFP;
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