Abstract:Aiming at the characteristic of parameter time varying, nonlinearity etc in electro-hydraulic position servo-system caused by oil spill, oil pollution, inert zone and hysteresis, the paper explored the multi modal control strategy based on human simulated intelligent control. In the paper, it analyzed the open question of electro-hydraulic position servo-system, discussed the essential feature of human simulated intelligent control, summarized up the characteristic of multi-modal control and its corresponding control algorithm. The comparative study of simulation experiment in multi-modal control and PID control verified the good control quality of multi-modal control. The simulation results demonstrated that compared with PID control by means of multi-modal control it could obtain better tracking performance, static and dynamic characteristics as well as stronger robustness than PID control.