Energy-conservation and low-impact hydraulic cylinder test testbed hydraulic control system

The invention discloses an energy-conservation and low-impact hydraulic cylinder test testbed hydraulic control system. The system comprises a constant pressure variable pump, two electromotors, two electromagnetic unloading overflow valves, six check valves, two energy accumulators, an electrohydraulic proportional direction valve, two speed regulating valves, four ball valves, an oil supplementing pump, a proportional throttle valve, an electromagnetic reversing valve, a loading hydraulic cylinder, six pressure sensors, two temperature sensors, a displacement sensor, a force sensor, two travel switches, six pressure measuring connectors, six pressure gages, a heater, a liquid level liquid temperature gage, a filter and an oil tank. The energy-conservation and low-impact hydraulic cylinder test testbed hydraulic control system has the advantages that stable energy is provided for low-impact control over the speed of a tested hydraulic cylinder while energy is conserved, low-impact stable control over the loading force is achieved, meanwhile, the actual work condition that loads of the hydraulic cylinder probably change continuously in work can be simulated, all the work conditions of the loads of the hydraulic cylinder can be simulated, and power input is reduced.