RBF Neural Network Backstepping Sliding Mode Adaptive Control for Dynamic Pressure Cylinder Electrohydraulic Servo Pressure System

Figure 1

The hydraulic schematic diagram of the track subgrade test device. (1) Oil tank. (2) Constant pressure variable pump. (3) Safety valve. (4) Accumulator. (5) Inlet filter. (6) Hydraulic pressure sensor. (7) Servo valve. (8) Displacement sensor. (9) Double-ring servo cylinder. (10) Load sensor. (11) Three-way proportional pressure reducing valve. (12) Electromagnetic overflow valve. (13) Cooler. (14) Oil return filter.