Electro-hydraulic drive with separate control of piston groups

The article describes the electro-hydraulic rotary motion drive with separate control of piston groups. Proposed various schemes of construction of the drive. It is shown that the proposed actuator has a wide range of speeds, can work in tracking the position and speed of the output shaft. A nonlinear mathematical model of the drive is represented. The results of numerical simulation and experimental data are shown. The method of synthesis of a special control signal, which increases the efficiency of the drive is given.