The disclosure relates to a method for operating a towed agricultural work implement (10) comprising a boom, in particular a seed drill or cultivator, comprising at least one support wheel for supporting the boom on the ground, wherein the at least one support wheel is actively controlled. The disclosure also relates to a towed agricultural work implement for carrying out this method.

A method for controlling a work vehicle is a method for controlling a work vehicle to which a work machine is detachably attached and includes causing the work vehicle to autonomously travel based on autonomous travel information set in association with the work machine, causing a user to select the autonomous travel information from a plurality of pieces of candidate information, and restraining selection of non-corresponding information that does not correspond to a type of the work machine attached to the work vehicle among the plurality of pieces of candidate information.

A vehicle has an operator control configured to provide a force as haptic feedback, a coupling configured for hitching a towable implement, a sensor arrangement configured to determine at least one sensor value, and a control unit configured to anticipate a potential collision between the vehicle and the towable implement based on the at least one sensor value and to increase the force if a potential collision is anticipated.

A method for tracking a position of an agricultural implement pulled by a vehicle includes receiving by a processing device position data of the vehicle from a global navigation satellite system (GNSS) receiver mounted on the vehicle, receiving by the processing device inertial measurement data from an inertial measurement unit mounted on the agricultural implement, projecting by the processing device the position data of the vehicle to a connection point between the vehicle and the agricultural implement based on predefined measurements between a known position on the vehicle and the connection point, determining by the processing device an initial heading of the agricultural implement based on a predetermined initialization procedure, and calculating by the processing device a position and orientation of the agricultural implement by computationally combining the projected position data at the connection point and the inertial measurement data from the inertial measurement unit.

A seeding apparatus includes an implement frame mounted on wheels and a plurality of furrow openers mounted on the implement frame. A primary air seeder cart is pivotally connected about a vertical implement pivot axis to an implement hitch on the implement frame, and an implement pivot limiting system is operative to limit a degree of pivoting of the primary air seeder cart about the implement pivot axis with respect to the implement frame to a selected degree chosen to reduce bending of conduits. A secondary air seeder cart can be pivotally connected to a cart hitch on the primary air seeder cart about a vertical cart pivot axis and an cart pivot limiting system is operative to limit the degree of pivoting of the secondary air seeder cart about the cart pivot axis.

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 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.