Abstract:

Basic research is carried out on the redundant flight control computer (FCC) of China’s selfdeveloped civil aircrafts. A novel redundant FCC is designed, which is appropriate for the flybywire(FBW) system of China’s large civil aircrafts. Also two principles on FBW architectures design are proposed: satisfying the system reliability requirements and satisfying the FO/FO/FO faulttolerant grade. Then seven suggestions on the FCC design are made based on these two principles. Accordingly, the redundancy number and faulttolerant architecture of the FCC are confirmed.

Key words: flight , control , computer,  , dissimilar , redundant,  , reliability,  , faulttolerant