The ornamental design for a hydraulic controlunit, as shown and described.
FIG. 1 is a front perspective view of a hydraulic control unit showing the new design.
FIG. 2 is a rear perspective view of the hydraulic control unit of FIG. 1.
FIG. 3 is a first end view of the hydraulic control unit of FIG. 1.
FIG. 4 is a second end view of the hydraulic control unit of FIG. 1.
FIG. 5 is a top view of the hydraulic control unit of FIG. 1.
FIG. 6 is a bottom view of the hydraulic control unit of FIG. 1.
FIG. 7 is a first side view of the hydraulic control unit of FIG. 1; and,
FIG. 8 is a second side view of the hydraulic control unit of FIG. 1.
Any portion of the hydraulic control unit shown in broken lines is for the purpose of illustrating environmental structure and forms no part of the claimed design.