Method for Operating an Electric or Fluidic Actuator and Movement Controller for an Actuator

A method for operating an electric or fluidic actuator for which a setpoint position is predefined the method comprising:

• provision of the setpoint position to a path planning unit and calculation of movement values (xd(t), x′d(t), x″d(t), x′″d(t)) from the setpoint position;
• provision of the movement values (xd(t), x′d(t), x″d(t), x′″d(t)) by the path planning unit to an open-loop control means and a closed-loop control means;
• calculation of a first manipulated variable component dependent on the movement values (xd(t), x′d(t), x″d(t), x′″d(t)) in the open-loop control means;
• calculation of a second manipulated variable component dependent on the movement values (xd(t), x′d(t), x″d(t), x′″d(t)) and on position signals of a position sensor assigned to the actuator in the closed-loop control means;
• combining of the first and the second manipulated variable component in an control unit;
• and
• provision of a control signal resulting from the manipulated variable components to the actuator,
• wherein a monitoring means performs a monitoring of at least one manipulated variable component and provides a fault signal if the monitored manipulated variable component exceeds a predefinable threshold component at the control signal.