Control device for a human-machine interface, comprising electroactive elements

A control device for a human-machine interface, the control device comprising a mount, a member moveable relative to the mount, and at least one electroactive element positioned between the member and a fixed element of the mount, the member being a handle, the at least one electroactive element being configured to control a position of the member, the member comprising an axis and a radial annular flange ring mounted on the axis, first and second electrodes being linked to first and second sides, respectively, of the flange ring, the mount comprising third and fourth electrodes, the flange ring being positioned between the third and fourth electrodes, the at least one electroactive element comprising a set of electroactive blocks, each of the electroactive blocks being positioned between one of (1) the first and third electrodes, and (2) the second and fourth electrodes, the electroactive blocks being evenly distributed about the axis.