A method for executing an agricultural work process on a field by means of a group of agricultural work machines. The work machines each have work assemblies which are adjustable with machine parameters for adapting to the respective agricultural conditions. The work machines of the group communicate with one another via a wireless network. The work machines of the group are configured as self-optimizing work machines which each have a driver assistance system for generating and adjusting machine parameters in an automated manner. These machine parameters are optimized with respect to the agricultural conditions. The work machines of the group cooperate collectively in the manner of a virtual work machine.

A harvesting machine for harvesting a crop and discharging the harvested crop to an offboard container, such as a wagon or a truck, or the ground. The harvesting machine includes a power system to provide power, a crop harvester powered by the power system, and a crop discharging system to discharge crop from an onboard storage container to the offboard location, typically a container. During a harvesting operation, the harvesting machine operates at a nominal maximum power, typically a current power consumption. The nominal maximum power is reduced in anticipation of a predicted power used for discharging the harvested crop from the onboard storage container. The current power consumption for harvesting is adjusted and allocated by the predicted power to make available power for the crop discharging system. Once crop is discharged using the discharging power, the harvesting machine returns to the nominal maximum power.

A harvester comprising: a drive engine connected via a first drive train to ground engagement equipment of the harvester and via a second drive train to crop processing equipment of the harvester; an actuator configured to adjust the transmission ratio of the first drive train to control the propulsion speed of the harvester; and a controller configured to receive setpoint and actual values dependent on the crop throughput of the harvester, the controller configured to calculate an acceleration signal based on the setpoint and actual values, the acceleration signal representing an acceleration of the harvester suitable for minimizing the difference between the setpoint and actual values, and to determine a control signal for controlling the actuator based on the acceleration signal.

A harvester and a method for harvesting a crop is disclosed. The harvester includes two track drives positioned on opposite ends of a front axle of the harvester, each of the track drives including two main wheels that are arranged successively in the driving direction of the harvester, at least one auxiliary wheel positioned between the main wheels, and at least one track that surrounds the main wheels. The auxiliary wheel can interact with a bottom section of the track so that the forces to be deflected via the particular track drive into ground can be deflected at least proportionately using the auxiliary wheel. To reduce the shearing forces into the ground when the harvester turns, a control unit, depending on the steering angle of the harvester, controls a lifting unit to lift a front main wheel of a particular track drive from its home position to a lifted position.

In one aspect, a system for adjusting harvesting implement orientation of an agricultural harvester may include a harvesting implement configured to be coupled to the agricultural harvester in a manner that permits a fore/aft tilt angle defined between a longitudinal axis of the harvesting implement and a field surface to be adjusted. The system may also include a sensor configured to detect a parameter indicative of a distance between the harvesting implement and the field surface. Furthermore, the system may include a controller configured to receive an input associated with a predetermined characteristic of the harvesting implement. The controller may also be configured to monitor the distance between the harvesting implement and the field surface based on data received from the sensor and initiate adjustments of the fore/aft tilt angle based on the received input and the monitored distance.

In one aspect, a system for adjusting harvesting implement orientation of an agricultural harvester may include a harvesting implement configured to be coupled to the agricultural harvester in a manner that permits a fore/aft tilt angle defined between a longitudinal axis of the harvesting implement and a field surface to be adjusted. The system may also include a sensor configured to detect a parameter indicative of a distance between the harvesting implement and the field surface. Furthermore, the system may include a controller configured to receive an input associated with a predetermined characteristic of the harvesting implement. The controller may also be configured to monitor the distance between the harvesting implement and the field surface based on data received from the sensor and initiate adjustments of the fore/aft tilt angle based on the received input and the monitored distance.

The invention relates to a cutting system (1) for a combine harvester (2), having a support frame (3) for a cutting table (4), which has, on the cutting side, a cutting bar (6) which is fastened in an articulated manner to the support frame (3), is flexible transversely to the cutting direction (5) and can be adjusted in height with respect to the support frame (3) by means of a plurality of axle levers (7) which are arranged distributed over the width of the cutting system and engage at one end on the cutting bar (6) and at the other end on the support frame (3), wherein actuators (8) and thus the axle levers (7) with the cutting bar (6) can be actuated by a controller (12). In order to create advantageous cutting conditions, it is proposed that the cutting bar (6) is assigned a plurality of sensors (11) which are arranged in a distributed manner over the width of the cutting system, record the ground clearance of the cutting bar (6) and are provided in the cutting direction (5) in front of each axle lever (7) on the cutting bar (6), wherein the sensors (11) are skids (13) arranged on the bottom side of the cutting bar (6) for measuring the ground contact pressure of the respective skid (13) or for measuring the distance between the skid (13) and the cutting bar (6).

The invention relates to a cutting system (1) for a combine harvester (2), having a support frame (3) for a cutting table (4), which has, on the cutting side, a cutting bar (6) which is fastened in an articulated manner to the support frame (3), is flexible transversely to the cutting direction (5) and can be adjusted in height with respect to the support frame (3) by means of a plurality of axle levers (7) which are arranged distributed over the width of the cutting system and engage at one end on the cutting bar (6) and at the other end on the support frame (3), wherein actuators (8) and thus the axle levers (7) with the cutting bar (6) can be actuated by a controller (12). In order to create advantageous cutting conditions, it is proposed that the cutting bar (6) is assigned a plurality of sensors (11) which are arranged in a distributed manner over the width of the cutting system, record the ground clearance of the cutting bar (6) and are provided in the cutting direction (5) in front of each axle lever (7) on the cutting bar (6), wherein the sensors (11) are skids (13) arranged on the bottom side of the cutting bar (6) for measuring the ground contact pressure of the respective skid (13) or for measuring the distance between the skid (13) and the cutting bar (6).

A harvesting machine includes: a machine main body 1; a harvesting unit 15 that is provided forward of the machine main body 1 and is capable of swinging upward and downward relative to the machine main body 1; a height detection unit that is capable of detecting a height position H at which the harvesting unit 15 is located; and an obstacle detection unit that is capable of detecting an obstacle that is located forward thereof in a travel direction. The obstacle detection unit includes: a first sensor 21 and a second sensor 22 that are provided at different positions in a vertical direction, and output detection information regarding a detection area that is located forward thereof in the travel direction; a selection unit that selects at least either the detection information from the first sensor 21 or the detection information from the second sensor 22 based on the height position H of the harvesting unit 15; and a determination unit that determines the obstacle based on the detection information selected by the selection unit.

A harvesting machine includes: a machine main body 1; a harvesting unit 15 that is provided forward of the machine main body 1 and is capable of swinging upward and downward relative to the machine main body 1; a height detection unit that is capable of detecting a height position H at which the harvesting unit 15 is located; and an obstacle detection unit that is capable of detecting an obstacle that is located forward thereof in a travel direction. The obstacle detection unit includes: a first sensor 21 and a second sensor 22 that are provided at different positions in a vertical direction, and output detection information regarding a detection area that is located forward thereof in the travel direction; a selection unit that selects at least either the detection information from the first sensor 21 or the detection information from the second sensor 22 based on the height position H of the harvesting unit 15; and a determination unit that determines the obstacle based on the detection information selected by the selection unit.