航空发动机分布式控制系统延时分析

Analysis of the Time-Delay of Aeroengine Distributed Control System

航空发动机分布式控制系统是一个总线控制系统。在控制回路中存在着各种原因引起的延时,这些延时直接影响着系统的实时性。针对系统中各延时环节延时产生原因进行了分析,并对各个环节的延时时间进行了估算或实验测量,结果表明影响系统实时性的主要因素是网络负载,为进一步改进航空发动机分布式控制系统实时性提供了依据,为减少延时提供了方法。

The aeroongine distributed control system is a network control system. The time-delay exists due to many ingredients in the loop, which is critical to the realtime control system. The cause of the time-delay is analyzed, and the length of the delay is obtained by estimation or experiment. Results show that the realtime ability of the system is mainly impacted by the network loading. The conclusion supplies directions of improving the realtime ability of aeroongine distributed control system and methods to reduce the time-delay.