The ornamental design for a controlunit, as shown and described.
FIG. 1 is a front/ left perspective view of a first embodiment of the control unit of the new design;
FIG. 2 is a front view of a first embodiment of the control unit of the new design;
FIG. 3 is a rear view of a first embodiment of the control unit of the new design;
FIG. 4 is a left side view of a first embodiment of the control unit of the new design;
FIG. 5 is a right side view of a first embodiment of the control unit of the new design;
FIG. 6 is a top view of a first embodiment of the control unit of the new design; and,
FIG. 7 is a bottom view of a first embodiment of the control unit of the new design.
The broken lines that are bounded by or fully enclosed by solid lines represent the bounds of the claimed design, while all other broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. The broken lines form no part of the claimed design. The surface shading illustrated in the drawings is provided merely to highlight the contour of the design and is not intended to be illustrative texture or gloss. In this case or any continuation case Applicant reserves the right to exclude by showing in broken lines (and the specification is to be interpreted as optionally excluding in any design) any one or any two or more regions bounded by lines in the attached figures (including regions bounded in whole or in part by tangent lines and/or other lines where two or more surfaces join).