Fluid control system for steerable agricultural implement

An agricultural implement system, comprising:

• a first actuating cylinder configured to rotate a first wheel assembly relative to an implement frame;
• a second actuating cylinder configured to rotate a second wheel assembly relative to the implement frame;
• a first fluid conduit configured to supply or return fluid;
• a second fluid conduit configured to supply or return fluid;
• a third fluid conduit extending to a cap side of the first actuating cylinder and a rod side of the second actuating cylinder;
• a fourth fluid conduit extending to a cap side of the second actuating cylinder and a rod side of the first actuating cylinder;
• a three-position valve having a first position configured to block fluid flow between the first and second fluid conduits and the third and fourth fluid conduits, a second position configured to facilitate fluid flow between the first fluid conduit and the third fluid conduit and between the second fluid conduit and the fourth fluid conduit, and a third position configured to facilitate fluid flow between the first fluid conduit and the fourth fluid conduit and between the second fluid conduit and the third fluid conduit;
• and
• a controller communicatively coupled to the three-position valve, wherein the controller is configured to transition the three-position valve to the second position or the third position to adjust fluid flow to the first and second actuating cylinders such that the first and second wheel assemblies are rotated into alignment with a longitudinal axis of the implement frame if a speed of the implement system exceeds a threshold speed, and to transition the three-position valve to the first position after the first and second wheel assemblies are aligned with the longitudinal axis of the implement frame.

An agricultural implement system, comprising:

• a first actuating cylinder configured to rotate a first wheel assembly relative to an implement frame;
• a second actuating cylinder configured to rotate a second wheel assembly relative to the implement frame;
• a first fluid conduit configured to supply or return fluid;
• a second fluid conduit configured to supply or return fluid;
• a first pressure sensor in fluid communication with the first fluid conduit, wherein the first pressure sensor is configured to output a first signal indicative of a pressure within the first fluid conduit;
• a second pressure sensor in fluid communication with the second fluid conduit, wherein the second pressure sensor is configured to output a second signal indicative of a pressure within the second fluid conduit;
• a valve in fluid communication with the first and second actuating cylinders and the first and second fluid conduits, wherein the valve is configured to control fluid flow from the first and second fluid conduits to the first and second actuating cylinders;
• and
• a controller communicatively coupled to the first and second pressure sensors and to the valve, wherein the controller is configured to determine whether the first fluid conduit or the second fluid conduit is supplying fluid to the valve based on the first and second signals, and to automatically control fluid flow to the first and second actuating cylinders such that the first and second wheel assemblies are rotated to a desired angle relative to the implement frame.