Model-based design and verification of functional architecture of civil aircraft pressure control system

In order to strengthen the promotion of model-based system engineering (MBSE) in the development and production of civil aircraft, this paper adopts model-based system engineering method based on MBSE to establish a functional architecture model of pressure control system based on SysML language to carry out architecture design and verification. In the early stage of system development, the correctness of functional logic and data flow is checked through the model, unexpected errors in the logic are identified, and missing interfaces for logic operation are captured. Realize early exposure of design problems, avoid downward transmission of design problems, reduce system design changes, improve work efficiency, and reduce costs.