Abstract:

The hydraulic system controlled by the electro-hydraulic proportional valve has typical nonlinear and uncertainty.The precise dual cylinder synchronization control is difficult to achieve by traditional control methods.The fuzzy control is used in the double cylinder synchronous system to realize the adjustment of control parameters online based on the traditional control method,which improves the adaptive capacity of the system.The Matlab simulation results show that the fuzzy control reduces the displacement fluctuation range of double cylinder synchronous system and has perfect anti-jamming capability and stability.

Key words: electro hydraulic proportional control;double cylinder synchronization;fuzzy control;Matlab simulation