关键词: 发动机控制;自动控制;容限分析;误差分析

Abstract: To realize the automatic analysis of error tolerance in complex system, a component description method was presented. It can be used to describe the information of component parameters and their relation. Then, a technique of directed graph was presented and the imitation-Newton method was improved. So it can process error-transferring calculation between parameters. It figured out the error tolerance range of system parameter when it was applied in the error tolerance analysis of aeroengine hydraulic mechanical control system. This method can effectively process problems such as nonlinear transfer and networking relevancy of parameters. It realize the analysis of error tolerance in complex and great system preferably.

Key words: Engine control;Automatic control;Tolerance analysis;Error analysis