Abstract:Control logic is one of the key components of airborne systems. The simulation and verification for the control logic is very helpful to find problems in the early design stage and to improve the safety of the system design. Matlab/Stateflow software platform was used to build the hydraulic control logic model for civil aircraft. By setting up control signals and state transition diagram, the condition monitoring of hydraulic system, automatic control of pump source accessories and corresponding warning functions were realized. A hydraulic control panel was designed and a virtual demonstration was carried out. The fidelity of system simulation was improved and the validity and accuracy for the control logic were verified.