Patent ID: 8857530

Claim:
An agricultural implement system, comprising: a fluid control unit configured to mount to a tow vehicle; an implement having a frame, a ground engaging tool coupled to the frame, and a ground engaging wheel configured to support the frame during operation of the implement; a depth control cylinder fluidly coupled to the fluid control unit, wherein the depth control cylinder is configured to adjust a penetration depth of the ground engaging tool by varying a height of the ground engaging wheel relative to the frame; and a sensor communicatively coupled to the fluid control unit and configured to output signals indicative of the penetration depth of the ground engaging tool; wherein the fluid control unit is configured to automatically control fluid flow to the depth control cylinder based on the signals to maintain a user-selectable penetration depth; wherein the fluid control unit include a depth control valve configured to selectively direct pressurized fluid to a cap side of the depth control cylinder thereby adjusting the height of the frame relative to a soil surface.