ABSTRACT
The load conditions of a vehicle hydraulic system during actual deployment is simulated, the online self-modifying parameters model of hydraulic cylinders is proposed, and master–slave synchronization PID control is used to control the hydraulic support. Mathematical models of an asymmetric hydraulic cylinder and electro-hydraulic proportional control valve of a specific vehicle hydraulic system are established. The simulation results show that PID control can meet the control requirements and the tracking error of master–slave synchronization control is less than 4 mm.
