12 Research of Semi-Physical Simulation Platform for Hydraulic System Based on EASY5

Introduction of the design method to achieve semi-physical simulation system on the basis of the hydraulic test platform and EASY5 hydraulic system simulation model. Using EASY5 and MATLAB / SIMULIINK co-simulation model, Real-time simulation control was achieved by calling the Windows API Multimedia Timers in MATLAB/SIMULINK to overcome the realtime weaknesses of EASY5; TCP / IP Network Communication was used for data exchange between Simulator and Control machine; man-machine interface of simulator was designed with Visual Basic, to achieve experimental initialization the hardware in the loop simulation system and start the simulation. It can be seen from the test results that the semi-physical simulation system work well.