An agricultural implement includes a longitudinally extending frame configured to be coupled to a tractor, a first elongate toolbar extending laterally outward from the frame and carrying a first row unit, a second elongate toolbar extending laterally outward the frame and carrying a second row unit, a first sensor configured to sense a position of the first row unit relative to ground, a second sensor configured to sense a position of the second row unit relative to the ground, a first actuator configured to rotate the first elongate toolbar relative to the frame based at least in part on the sensed position of the first row unit, and an actuator configured to rotate the second elongate toolbar relative to the frame based at least in part on the sensed position of the second row unit. Control systems and related methods are also disclosed.

A method of controlling tilt of an agricultural implement being towed by a tow vehicle along a field includes providing a controller, a first sensor, a second sensor, and an actuator coupled to the implement. The method includes detecting a baseline level of the tow vehicle with the first sensor at a first location in the field, wherein the implement is located at a second location in the field spaced rearward of the first location. The controller determines when the implement will be at the first location in the field, and an implement level of the implement is measured with the second sensor once the implement is at the first location. The implement level is compared to the baseline level with the controller. The controller determines if the difference between the implement level and baseline level is within a tolerance range, and further controls the actuator as needed.

A method of controlling tilt of an agricultural implement being towed by a tow vehicle along a field includes providing a controller, a first sensor, a second sensor, and an actuator coupled to the implement. The method includes detecting a baseline level of the tow vehicle with the first sensor at a first location in the field, wherein the implement is located at a second location in the field spaced rearward of the first location. The controller determines when the implement will be at the first location in the field, and an implement level of the implement is measured with the second sensor once the implement is at the first location. The implement level is compared to the baseline level with the controller. The controller determines if the difference between the implement level and baseline level is within a tolerance range, and further controls the actuator as needed.

A method of controlling an agricultural work system includes defining a wheelbase of the traction unit and defining at least one implement dimension of the drawn implement relative to the traction unit. A pitch angle of the traction unit about a central transverse axis is sensed relative to a horizontal reference plane as the traction unit moves over a terrain feature of a ground surface. A controller may then generate an elevation profile of the ground surface from the sensed pitch angle and the wheelbase of the traction unit. The controller may then control or actuate an adjustable component to adjust a ground clearance between the drawn implement and the ground surface to avoid contact between the drawn implement and the terrain feature as the drawn implement moves over the terrain feature.

A method of controlling an agricultural work system includes defining a wheelbase of the traction unit and defining at least one implement dimension of the drawn implement relative to the traction unit. A pitch angle of the traction unit about a central transverse axis is sensed relative to a horizontal reference plane as the traction unit moves over a terrain feature of a ground surface. A controller may then generate an elevation profile of the ground surface from the sensed pitch angle and the wheelbase of the traction unit. The controller may then control or actuate an adjustable component to adjust a ground clearance between the drawn implement and the ground surface to avoid contact between the drawn implement and the terrain feature as the drawn implement moves over the terrain feature.

Disclosed embodiments include power machines and related structures of lift arms, implement carriers, follower links, and driver links which improve manufacturability, reduce component failures, and improve power machine design and functionality. In some embodiments, lift arm structures include cast lower lift arm portions. The cast lower lift arm portions include contoured upper ends which are sleeved onto contoured lower ends of upper lift arm portions to control stress points and to reduce stresses on welds. The follower link structures can include follower links which are configured to be positioned at least partially outside of the lift arm structure to improve rear visibility. The driver link structures can be configured to be laterally overlapping with innermost surfaces on the lift cylinder, but configured such that as the lift arm is raised the laterally overlapping portions are moved above the innermost surfaces of the lift cylinder.

A row unit for a work vehicle includes a row unit frame with a closer frame. The closer frame defines a longitudinal axis and a transverse axis. The closer frame is supported for rotational movement about a substantially vertical steering axis to vary a turning angle between the longitudinal axis the vehicle longitudinal axis. The row unit includes a closer implement assembly with first and second closer implements and a walking beam construction. The first and second closer implements are attached to opposite areas of the walking beam construction. The walking beam construction is rotationally attached to the closer frame to support rotation of the closer implement assembly about the transverse axis. The first and second closer implements are configured to move ground material into a ground opening from opposites sides as the work vehicle moves across the field.

A row unit for a work vehicle includes a row unit frame with a closer frame. The closer frame defines a longitudinal axis and a transverse axis. The closer frame is supported for rotational movement about a substantially vertical steering axis to vary a turning angle between the longitudinal axis the vehicle longitudinal axis. The row unit includes a closer implement assembly with first and second closer implements and a walking beam construction. The first and second closer implements are attached to opposite areas of the walking beam construction. The walking beam construction is rotationally attached to the closer frame to support rotation of the closer implement assembly about the transverse axis. The first and second closer implements are configured to move ground material into a ground opening from opposites sides as the work vehicle moves across the field.

The disclosed apparatus, systems and methods relate to devices, systems and methods for on-the-go monitoring and controlled feedback in a supplemental downforce application. Certain implementations provide real-time monitoring of furrow depth via contact and non-contact approaches, some of which are combined with gauge wheel feedback to calibrate and otherwise control the application of supplemental downforce to the row unit. A combination of sensor types are employed in collecting furrow depth measurements, which can be used to adjust the supplemental downforce through a control system module. A gauge wheel load sensor may be used to modify the application of supplemental downforce.

An agricultural system comprising a plough. The plough comprising: a plough body; a stone-trip-mechanism that is configured to be tripped when the plough body encounters a stone or other obstruction; and a trip-sensor configured to provide trip-data in response to the stone-trip-mechanism being tripped. The agricultural system also includes a location-determining-system associated with the plough, wherein the location-determining-system is configured to provide location-data that is representative of a location of the plough; and a controller. The controller is configured to: receive the trip-data; and store location-data provided by the location-determining-system as a trip-location based on the trip-data, wherein the trip-location is a location of the plough at the time that the stone-trip-mechanism is tripped.