Hardware in loop simulation system for program-controlled flight-test vehicle

The distributed hardware in the loop simulation system based on VMIC real-time network was studied, and the functions of various simulation devices were introduced. The Windows + RTX generating a simulation clock method was selected to form several methods of generating a simulation clock. This method facilitates the development of the simulation program while ensuring the high precision of the simulation clock. Finally, the overall architecture of simulation control software was designed on the basis of message and events. This hardware in the loop simulation system possesses good expansibility and flexible test mode.