A partially distributed engine control system was designed based on the centralized FADEC (full authority digital engine control) of domestic turbofan engine by geographical distribution principle. A reasonable classification of various signals in the control system was presented. According to communication requirement assessment for distributed turbine engine control

Time-triggered CAN (controller area network) bus was determined as the engine area network and the communication strategy was designed. TrueTime was exploited to develop a distributed control system simulation. Impact of network delay and data dropout on the engine performance was studied. The results show that bus utilization is 50% at 250kbit/s and 12.34% at 1Mbit/s

which meets the communication requirement. The network-induced delay of the time-triggered system is 12ms. It prolongs the rise time of high pressure rotor speed for 0.02s. However

the engine response is significantly slower under the random packet dropout

which should be taken into account at the design phase.