Device and method for open-loop or closed-loop control of a movement of a die cushion of a die cushion press

A device for open-loop or closed-loop control of a movement of a die cushion of a die cushion press, comprising:

• a control value encoder;
• a speed controller;
• a current controller;
• and
• a motor control device for providing a nominal current for an electrical drive of a fluid-hydraulic motor pump unit for moving a die cushion of a die cushion press;
• wherein the control value encoder is provided in order to calculate a target setpoint speed based on a die cushion control value command and a die cushion information;
• wherein the speed controller is provided in order to calculate a setpoint current based on the target setpoint speed;
• wherein the speed controller uses a setpoint speed which comprises a disturbance variable;
• wherein a velocity of the die cushion of the die cushion press is connected as the disturbance variable;
• wherein the current controller is provided in order to calculate a control signal based on the setpoint current;
• and
• wherein the motor control device is provided in order to calculate the nominal current based on the control signal.