An implement for cultivating a field is connected to a self-propelled vehicle that is steered automatically along a first reference path by a steering control unit. The implement is guided in a lateral direction with respect to the vehicle along a second reference path by an implement position control unit by means of an actuator. The steering control unit steam the vehicle in dependence on the position of the actuator at the time.

A system and method of use of said system for communication between a farm implement and a receiving vehicle regarding a position of a chute of the farm implement relative to the farm implement. The system can include a transmitting module provided with the farm implement and a receiving module provided with the receiving vehicle. The transmitting module can include a power source, a position sensing circuit, an encoding circuit, and a transmitter for communicating with the receiving module regarding the position of the chute. The receiving module can include a power source, a user interface, a decoding circuit, and a receiver for receiving signals from the transmitter of the transmitting module indicative of the position of the chute.

An implement operating apparatus has a U-shaped drive frame supported on drive wheels, each pivotally mounted about a vertical wheel pivot axis. A steering control selectively pivots each drive wheel. A power source is connected through a drive control to rotate the drive wheels in either direction. First and second implements are configured to perform implement operations and to rest on the ground and when the drive frame is maneuvered to an implement loading position with respect to each implement, the implement is connectable to the drive frame and movable to an operating position supported by the drive frame. When the implement is in the operating position, the steering and drive controls are operative to move and steer the drive frame and implement along a first travel path or a second travel path oriented generally perpendicular to the first travel path.

A vehicle, a tool carriage assembly, and a system are disclosed. The vehicle includes drive wheels and a steering assembly which are responsive to control signal(s) to substantially correct a displacement error of the vehicle relative to an intended travel path. The tool carriage assembly includes a support section operatively mounted to a main body for relative movement. The support section is adapted to have mounted thereto a tool unit comprising a tool head. In response to a displacement error of the tool head relative to the intended travel path, the support section is responsive to one or more control signals to move relative to the main body to substantially correct the displacement error of the tool head. The system includes the vehicle having the tool carriage assembly mounted thereto, and a control system for controlling the correction of the displacement errors of the vehicle and the tool head.

A yaw rate is sensed on a towing vehicle that is towing an air seeder. The sensed yaw rate is used to predict a future yaw rate on a planting implement of the air seeder. An application rate of material is varied across the application implement based upon the predicted yaw rate across the implement.

A yaw rate is sensed on a towing vehicle that is towing an air seeder. The sensed yaw rate is used to predict a future yaw rate on a planting implement of the air seeder. An application rate of material is varied across the application implement based upon the predicted yaw rate across the implement.

A guidance hitch includes a forward hitch assembly, a rearward hitch assembly and a linkage arrangement pivotally connecting the rearward hitch assembly to the forward hitch assembly. The forward hitch assembly is adapted to mount to a tractor's three-point hitch. The rearward hitch assembly is adapted to support an implement. At least one hydraulic steering cylinder is capable of angularly positioning the rearward hitch assembly with respect to the forward hitch assembly. A side-shift hydraulic cylinder is capable laterally positioning the rearward hitch assembly with respect to the forward hitch assembly.

An agricultural machine having an auxiliary vehicle with a driver's workplace, an agricultural vehicle with a loading ramp for transporting the auxiliary vehicle and a control unit. The agricultural machine is operable in a combined configuration in which the auxiliary vehicle is placed on the loading ramp or in a separated configuration in which the auxiliary vehicle is removable from the loading ramp. The driver's workplace has a human machine interface for controlling a manual driving function of the agricultural vehicle and a manual driving function of the auxiliary vehicle. The control unit is configured to disable the manual driving function of the auxiliary vehicle if the combined configuration of the agricultural machine is present and to enable the manual driving function of the auxiliary vehicle if the separated configuration of the agricultural machine is present.

An agricultural planting system comprises an implement configured to be coupled to a work machine, row units of the implement, and first and second pairs of wheels configured to pivot and rotate to facilitate a turning operation during forward travel of the planting system. The row units are arranged in first and second ranks depending on their forward-aft placement. Furrow openers of the first rank of row units are configured to contact the ground along a first contact line, and furrow openers of the second rank of row units are configured to contact the ground along a second contact line. During a turning operation, the implement turns about a turning center axis, and the first and second pairs of wheels pivot in opposite directions, which allows the first and second contact lines to remain equidistant from the turning center axis during the turn.

A steering assist system operably engaged with an articulating tractor at a pivot point. The steering assist system includes a controller, a sensor unit operably engaged at the pivot point of an articulating chassis of the articulating tractor, a steering actuator operably engaged with a front articulating frame of the articulating chassis and a rear articulating frame of the articulating chassis to pivot the articulating chassis at the pivot point based on at least one output from the controller, and a steering unit operable with the controller to input one or more steering commands to steer the articulating tractor. The sensor unit of the steering assist system is configured to measure rotation of the articulating chassis about a vertical axis of the articulating tractor at the pivot point.