An agricultural combine has a chassis that supports a feederhouse receiving cut crop material from an agricultural harvesting head. A rotor and concave arrangement receives the cut crop material to thresh the cut crop material and to separate the cut crop material into a flow of grain and a flow of straw. A cleaning shoe receives the flow of grain from the threshing and separating mechanism to clean the flow of grain and to provide a flow of clean grain and a flow of chaff. A residue management system receives the flow of straw and the flow of chaff. The residue management system has a straw chopper that rotates in a first direction in a windrowing mode to windrow the flow of straw and rotates in a second direction opposite the first direction in a chopping mode to chop the flow of straw.

An agricultural combine has a chassis that supports a feederhouse receiving cut crop material from an agricultural harvesting head. A rotor and concave arrangement receives the cut crop material to thresh the cut crop material and to separate the cut crop material into a flow of grain and a flow of straw. A cleaning shoe receives the flow of grain from the threshing and separating mechanism to clean the flow of grain and to provide a flow of clean grain and a flow of chaff. A residue management system receives the flow of straw and the flow of chaff. The residue management system has a straw chopper that rotates in a first direction in a windrowing mode to windrow the flow of straw and rotates in a second direction opposite the first direction in a chopping mode to chop the flow of straw.

A combine harvester for carrying out an agricultural harvesting process has a plurality of working units and a driver assistance system for controlling at least some of the working units. The combine harvester accommodates as working units a chaff cutter for comminuting harvested produce and a produce distributing arrangement in the rear area of the combine harvester downstream of the chaff cutter for distributing harvested produce on the field soil in adjustable throw directions. The respective throw direction comprises vector components of a horizontal throw direction and a vertical throw direction. The driver assistance system is adapted to optimize the control of the produce distributing arrangement by at least one of the substrategies including throw direction correction and/or inclination-dependent produce distribution and/or produce distribution in longitudinal direction and/or produce distribution in transverse direction with respect to at least one optimization criterion.

A combine harvester for carrying out an agricultural harvesting process has a plurality of working units and a driver assistance system for controlling at least some of the working units. The combine harvester accommodates as working units a chaff cutter for comminuting harvested produce and a produce distributing arrangement in the rear area of the combine harvester downstream of the chaff cutter for distributing harvested produce on the field soil in adjustable throw directions. The respective throw direction comprises vector components of a horizontal throw direction and a vertical throw direction. The driver assistance system is adapted to optimize the control of the produce distributing arrangement by at least one of the substrategies including throw direction correction and/or inclination-dependent produce distribution and/or produce distribution in longitudinal direction and/or produce distribution in transverse direction with respect to at least one optimization criterion.

A residue management system or method can be implemented for an agricultural harvester that includes a residue processing system. A sensor arrangement can be in communication with one or more components of the residue processing system. The sensor arrangement can be configured to measure indicators of a mass flow rate of the crop residue through the crop residue system across a width of a stream of the crop residue.

Weed seeds are destroyed in the chaff from a combine harvester by repeated high speed impacts caused by a rotor mounted in one of a pair of side by side housings which accelerate the discarded seeds in a direction centrifugally away from the rotor onto a stator including angularly adjustable stator surfaces around the axis. Thus the discarded seeds rebound back and forth between the rotor and the stator to provide a plurality of impacts. The seeds are carried axially of the rotor by a controlled airstream so that they move to an axial discharge location where a discharge fan is mounted. The angle of the discharge around the rotor axis can be changed to direct the seeds to the side of the combine away from a straw chopper, towards the guide fins of the tailboard of the chopper, or into the housing of the straw chopper.

Weed seeds are destroyed in the chaff from a combine harvester by repeated high speed impacts caused by a rotor mounted in one of a pair of side by side housings which accelerate the discarded seeds in a direction centrifugally away from the rotor onto a stator including angularly adjustable stator surfaces around the axis. Thus the discarded seeds rebound back and forth between the rotor and the stator to provide a plurality of impacts. The seeds are carried axially of the rotor by a controlled airstream so that they move to an axial discharge location where a discharge fan is mounted. The angle of the discharge around the rotor axis can be changed to direct the seeds to the side of the combine away from a straw chopper, towards the guide fins of the tailboard of the chopper, or into the housing of the straw chopper.

A straw chopper for a combine harvester including a rotor supporting a plurality of chopping elements. A rotor housing including an inlet opening, an outlet axially aligned with the inlet opening, and at least one outlet that is axially offset from the inlet opening. A portion of the straw is conveyed tangentially to the axially-aligned outlet, whilst a further portion is conveyed from the inlet opening to the axially offset outlet(s) via a path having an axial component, for example a helical path. Guide vanes may be provided on the inside of the housing to impart an axial force upon the straw.

A chopping assembly is configured to receive crop plants processed by an agricultural combine harvester. The chopping assembly includes an inlet and a plurality of blades rotatable about an axis. The plurality of blades is positioned downstream of the inlet. The chopping assembly also includes an outlet positioned downstream of the plurality of blades. The outlet is partially defined by a first wall and a second wall. The chopping assembly further includes an actuator coupled to the second wall. The actuator is configured to move the second wall relative to the first wall. A control processor is in communication with the actuator. The control processor is configured to receive a first signal corresponding to a condition representative of a characteristic of the crop plants. The control processor is also configured to generate a second signal operable to control the actuator based on the condition.

A combine harvester is disclosed, including a separating device for separating grain and straw and a shredding device downstream from the separating device for shredding a straw portion discharged from the separating device. The shredding device comprises a chopping rotor which is rotationally driven about an axis oriented transversely to an infeed direction of the portion of straw into the shredding device, and the rotary movement of which generates an air flow directed away from the chopping rotor. The rotary movement is opposite the infeed direction on a part of the circumference of the chopping rotor. Further, the infeed direction of the straw portion into the shredding device is regulated by at least one structure, such as an adjustable crop guide plate, in such a way that the air flow does not counteract the infeed of the straw portion into the shredding device.