A control system for multiple row units of an agricultural implement includes a controller configured to selectively enable automatic downforce control for at least one controllable ground-engaging tool of each row unit that is within a work zone of an agricultural field. The automatic downforce control for the at least one controllable ground-engaging tool includes controlling a downforce of the at least one controllable ground-engaging tool such that the downforce is within a threshold range of a respective target downforce. In addition, the controller is configured to selectively disable the automatic downforce control for the at least one controllable ground-engaging tool of each row unit that is within a no-work zone of the agricultural field, or selectively adjust the respective target downforce for the at least one controllable ground-engaging tool of each row unit that is within the no-work zone of the agricultural field.

The document discloses an agricultural implement, comprising a main frame (11), which carries a plurality of soil working tools (32), a first support frame (12a), which is pivotally connected to the main frame (11) via a first support frame joint (21a) and which carries at least one first rolling ground support (31a), such as a wheel or a roller, a control lever (13) rotatably connected to the main frame (11) via a control lever joint (22), a support frame control link (14) rotatably connected to the control lever via a first support frame control link joint (23a) and which is pivotally connected to the support frame (12) via a second support frame control link joint (23b) so that rotation (V1) of the control lever (13) around the control lever (22) provides rotation (V2) of the first support frame (12a) relative to the main frame (11), wherein the control lever (13) is rotatable in a first direction of rotation (V1) so that the first support frame control link joint (23a) can pass a line (C1) through rotation centers of the control lever joint (22) and the second support frame control link joint (23b) and wherein the first support frame (12a), when the first support frame control link joint (23a) passes the line (C1), changes direction of rotation (−V2).

The document discloses an agricultural implement, comprising a main frame (11), which carries a plurality of soil working tools (32), a first support frame (12a), which is pivotally connected to the main frame (11) via a first support frame joint (21a) and which carries at least one first rolling ground support (31a), such as a wheel or a roller, a control lever (13) rotatably connected to the main frame (11) via a control lever joint (22), a support frame control link (14) rotatably connected to the control lever via a first support frame control link joint (23a) and which is pivotally connected to the support frame (12) via a second support frame control link joint (23b) so that rotation (V1) of the control lever (13) around the control lever (22) provides rotation (V2) of the first support frame (12a) relative to the main frame (11), wherein the control lever (13) is rotatable in a first direction of rotation (V1) so that the first support frame control link joint (23a) can pass a line (C1) through rotation centers of the control lever joint (22) and the second support frame control link joint (23b) and wherein the first support frame (12a), when the first support frame control link joint (23a) passes the line (C1), changes direction of rotation (−V2).

A system that includes a wheel carrier system. The wheel carrier system includes a first wheel that couples to a first shaft. A first connector couples the first shaft to a central shaft. A second wheel couples to a second shaft. A second connector couples the second shaft to the central shaft. The first wheel and the second wheel independently rotate and move vertically. A first wheel carrier arm couples to a wheel carrier frame. A first link rotates a ground engaging tool system with respect to the wheel carrier frame to transition the ground engaging tool system from a lowered position to a raised position. An actuator simultaneously rotates the first wheel carrier arm from a first position to a second position and the ground engaging tool system from the lowered position to the raised position.

A system that includes a wheel carrier system. The wheel carrier system includes a first wheel that couples to a first shaft. A first connector couples the first shaft to a central shaft. A second wheel couples to a second shaft. A second connector couples the second shaft to the central shaft. The first wheel and the second wheel independently rotate and move vertically. A first wheel carrier arm couples to a wheel carrier frame. A first link rotates a ground engaging tool system with respect to the wheel carrier frame to transition the ground engaging tool system from a lowered position to a raised position. An actuator simultaneously rotates the first wheel carrier arm from a first position to a second position and the ground engaging tool system from the lowered position to the raised position.

An implement for traversing a field includes a main frame section and a frame wing section pivotally coupled to the main frame section. The frame wing section includes a wing wheel assembly for supporting the frame wing section. A hydraulic control system includes a pressure source, a control valve fluidly coupled with the pressure source, and an actuator assembly fluidly coupled to the control valve. The implement further includes a controller electrically coupled with the control valve. A wheel force sensor is configured to detect an amount of force on the wing wheel assembly and communicate the amount of force to the controller. The actuator assembly is coupled between the main frame section and the frame wing section. The controller operably controls movement of the control valve to actuate the actuator assembly and adjust the amount of force on the wing wheel assembly.

A method and apparatus for remotely positioning a stabilizer wheel of a towable agricultural implement simultaneously, cooperatively and proportionally control the flow of hydraulic fluid to and from both the rod and base ends of the bore of a double-acting hydraulic cylinder, to hold the piston of the hydraulic cylinder at a target position determined from a desired position input signal corresponding to a desired position of the stabilizer wheel with respect to a frame of the agricultural implement.

A method and apparatus for remotely positioning a stabilizer wheel of a towable agricultural implement simultaneously, cooperatively and proportionally control the flow of hydraulic fluid to and from both the rod and base ends of the bore of a double-acting hydraulic cylinder, to hold the piston of the hydraulic cylinder at a target position determined from a desired position input signal corresponding to a desired position of the stabilizer wheel with respect to a frame of the agricultural implement.

In one aspect, a system for monitoring the frame levelness of an agricultural implement may include an implement frame and first and second seedbed detection assemblies coupled to the implement frame. Each of the seedbed detection assemblies may include a seedbed tool configured to ride along a seedbed floor as the implement frame is moved across a field in a forward travel direction. Each of the seedbed detection assemblies may also include a seedbed floor sensor configured to capture data indicative of a position of the corresponding seedbed tool relative to the implement frame. Furthermore, the system may include a controller configured to monitor positions of the seedbed detection assemblies relative to the implement frame based on data received from the seedbed floor sensors of the first and second seedbed detection assemblies, respectively.

A control system for controlling an implement that is movable between a work mode and a transport mode. The control system includes a source of hydraulic fluid, a first actuator and a second actuator. The first and second actuators are fluidly coupled to the source and disposed parallel to one another. A sensor detects movement of the first and second actuators between their retracted and fully extended positions, and a control valve is disposed in communication with the sensor and in fluid communication with the first and second actuators. As the implement moves to its transport mode, the sensor detects movement of the first and second actuators towards their fully extended positions. The control valve inhibits movement of the first and second actuators before either actuator reaches its fully extended position.