A method for dynamically operating a header float system of an agricultural vehicle having a header movably mounted to a frame of the agricultural vehicle by an actuator. The method includes: determining a target ground reaction force between the header and a ground surface located below the header, determining an actual ground reaction force between the header and the ground surface, comparing the actual ground reaction force to the target ground reaction force, and upon determining that the actual ground reaction force differs from the target ground reaction force by a predetermined amount, operating the actuator to reduce a difference in value between the actual ground reaction force and the target ground reaction force. An agricultural vehicle having a header operated as described above is also provided.

A multiple row sugar cane harvester having automatic and independent control of multiple base cutters utilized to severe sugar cane stalks in adjacent rows. Position sensors sense the height of the base cutters relative to the chassis of the sugar cane harvester and feed the signals to a controller for adjusting the height to a preselected level. The base cutters are individually driven by hydraulic motors through individual hydraulic circuits and the operating pressure is sensed and fed to the controller for determining whether a choke condition exists. A load sensor is incorporated between the linkage and the sugar cane harvester chassis for determining whether the base cutters have ground contact to elevate the base cutters.

A gauging system is adapted for use with a crop harvesting header of the type having a pair of wing frame portions connected to a center frame portion by a balancing linkage and which is operable in a first mode of operation by engagement of a skid plate of each wing frame portion along the ground. In one embodiment of the invention, the gauging system includes i) outer gauge wheels supporting the outer ends of the wing frame portions such that the skid plate is at a controlled distance from the ground and ii) inner gauge wheels proximate the center frame portion for supporting the inner ends of the wing frame portions such that the skid plate is at a controlled distance from the ground according to a second mode of operation of the header.

An agricultural vehicle includes a chassis; a header carried by the chassis and including a cutter mechanism, the header being adjustable in a vertical direction; a swath roller carried by the chassis behind the header; a roller actuator connected to the swath roller and configured to adjust the swath roller in the vertical direction; and a controller coupled to the roller actuator. The controller is configured for: detecting when the header raises in the vertical direction; recording a header raising point where the header raises; determining when the swath roller reaches the header raising point; and signaling the roller actuator to raise the swath roller when the swath roller reaches the header raising point.

An arrangement for the control of an actuator (48) for the adjustment of an adjustable element (16) of an agricultural work machine (10) is equipped with a control unit (50) to produce adjustment signals for the adjustable element (16) in the sense of moving to a theoretical position, a control arrangement (62) of the actuator (48), coupled with the adjustable element (16), which receives the adjustment signals of the control unit (50), and a determination device (54) to make available at least one parameter (0), determined with the aid of recorded vibration characteristics of the system consisting of the adjustable element (16) and the work machine (10). The determination device (54) can be operated so as to determine at least one parameter (0) at the successively following time points and to supply it to the control unit (50). The parameter (0) serves to optimize the regulating behavior of the control unit (50).

An arm assembly of an agricultural header includes a leaf spring configured to couple to a frame of the agricultural header. The arm assembly also includes an arm coupled to the leaf spring, in which the arm is configured to support a cutter bar assembly of the agricultural header. In addition, the arm assembly includes an actuator coupled to the arm and configured to couple to the frame of the agricultural header. The actuator is configured to urge the arm to move the cutter bar assembly upwardly relative to a soil surface, and the arm assembly is configured to be coupled to the frame only by the leaf spring and the actuator.

An agricultural harvester includes a harvester body, a header which is adapted for harvesting a crop, a feeder house which is adapted to receive said harvested crop from the header, a header adapter which is arranged between the header and the feeder house, which header adapter is adapted to allow the header to pivot relative to the feeder house about a horizontal pivot axis substantially parallel to the longitudinal axis of the header. A first actuator has a first end that is pivotably connected to the feeder house and a second end that is pivotably connected to the header adapter. A second actuator has a first end and a second end, which first end is pivotably connected to the harvester body. A coupling device is pivotably connected to the second end of the second actuator, the feeder house and the header adapter.

An agricultural vehicle includes a chassis (16), a lift arm (18) movably coupled to the chassis (16), a lift actuator (21) coupled to the lift arm (18), a header (14) coupled to the lift arm (18), and a controller (120) operably coupled to the lift actuator (21). The controller (120) is configured to: receive a header type signal corresponding to a header type of the header; define a lift height limit of the header based at least partially on the received header type signal, the lift height limit being a first height limit when a first header type signal is received or a second height limit when a second header type signal is received; and output a lift signal to the lift actuator (21) to vertically displace the header (14). Header vertical displacement is limited to the first height limit if the first header type signal is received or the second height limit if the second header type signal is received.

A system for controlling harvesting implement position of an agricultural harvester includes a harvesting implement configured to be coupled to the harvester to permit adjustment of a current position of the implement relative to a field surface. Additionally, the system includes a sensor configured to capture data indicative of the current position of the implement relative to the field surface, a display device, and a controller communicatively coupled to the sensor and the display device. As such, the controller is configured to monitor the current position of the implement based on the data captured by the sensor. Furthermore, the controller is further configured to initiate display of a graphical user interface on the display device, with the graphical user interface displaying a first interface element associated with the current position of the implement relative to a second interface element associated with a reference position of the implement.

An agricultural vehicle includes a chassis (16), a lift arm (18) movably coupled to the chassis (16), a lift actuator (21) coupled to the lift arm (18), a header (14) coupled to the lift arm (18), and a controller (120) operably coupled to the lift actuator (21). The controller (120) is configured to: receive a header type signal corresponding to a header type of the header; define a lift height limit of the header based at least partially on the received header type signal, the lift height limit being a first height limit when a first header type signal is received or a second height limit when a second header type signal is received; and output a lift signal to the lift actuator (21) to vertically displace the header (14). Header vertical displacement is limited to the first height limit if the first header type signal is received or the second height limit if the second header type signal is received.