A controller for controlling a chopper arrangement of an agricultural harvester. The controller receives sensor data indicative of an intensity of chopping performed on crop material by the chopper arrangement, and sensor data indicative of a power consumption of the chopper arrangement. The controller has a processor to determine an actuator setting for a chopper arrangement actuator of the agricultural harvester in dependence on the received sensor data indicative of the intensity of chopping and the received sensor data indicative of the power consumption. The controller sends an actuator control signal to the chopper arrangement actuator to control the chopper arrangement actuator to operate in accordance with the associated determined actuator setting. The determined actuator setting includes an amount of insertion, and an angle of insertion, of at least one bank of counter knives of the chopper arrangement relative to rotatable knife rows of the chopper arrangement.

Chopping blade (10), having a basic body (11), which has a fastening portion (12) for fastening said chopping blade to a chopping drum and a cutting portion (13) which is angled in relation to the fastening portion, and having a crop-guiding element (15) which is fastened to the fastening portion (12) and is intended for guiding chopped harvested crop, wherein a guide surface (16) of the crop-guiding element (15) has a curved contour. A distance (a) between the beginning of the guide surface (16) of the crop-guiding element (15) and a transition edge (14) between the fastening portion (12) and the cutting portion (13) of the basic body (11) is between 4 mm and 8 mm. The guide surface (16) runs rectilinearly in a first portion (18) with a length (b) between 4 mm and 8 mm, wherein said first portion (18) encloses an angle () between 18 and 22 with the fastening portion (12). The first portion (18) merges into a concavely curved second portion (19), the radius of curvature (Rx) of which is between 21 mm and 25 mm and which has a wrap angle () between 29 and 33. The second portion merges into a concavely curved third portion (20), the radius of curvature (Ry) of which is between 18 mm and 22 mm and which has a wrap angle () between 24 and 28. The third portion merges into a convexly curved fourth portion (21). A maximum height of the crop-guiding element is between 24 mm and 30 mm.

A pre-cutter assembly includes at least one knife rotatable about a knife rotation axis between a retracted position and a deployed position, and an associated engagement arm rotatable about an arm rotation axis between a latch position securing the knife in the deployed position, and a release position allowing the knife to move into the retracted position. A magnet may be positioned for engagement with the engagement arm when the engagement arm is disposed in the latch position. The magnet is operable to apply a magnetic force to the engagement arm when engaged with the engagement arm to hold the engagement arm in the latch position thereby securing the knife in the deployed position. A cam shaft having a cam lobe may be rotated to selectively move the engagement arm between the release position and the latch position.

A pre-cutter assembly includes at least one knife rotatable about a knife rotation axis between a retracted position and a deployed position, and an associated engagement arm rotatable about an arm rotation axis between a latch position securing the knife in the deployed position, and a release position allowing the knife to move into the retracted position. A magnet may be positioned for engagement with the engagement arm when the engagement arm is disposed in the latch position. The magnet is operable to apply a magnetic force to the engagement arm when engaged with the engagement arm to hold the engagement arm in the latch position thereby securing the knife in the deployed position. A cam shaft having a cam lobe may be rotated to selectively move the engagement arm between the release position and the latch position.

An agricultural system for harvesting a forage crop material, includes: a first agricultural work equipment for controllably harvesting the forage crop material, the first agricultural work equipment including: a first forage processing assembly; a first control system including: a first forage processing assembly condition sensor configured for sensing a first actual condition of the first forage processing assembly and thereby for outputting a first actual condition signal associated with the first actual condition of the first forage processing assembly; a first controller operatively coupled with the first forage processing assembly condition sensor and the first forage processing assembly and configured for: receiving the first actual condition signal; determining a first adjustment signal based at least in part on the first actual condition signal and at least one first predicted forage crop material condition associated with a first forage processing operation; outputting the first adjustment signal and thereby for initially adjusting, prior to beginning the first forage processing operation, a first device of the first forage processing assembly.

An agricultural system for harvesting a forage crop material, includes: a first agricultural work equipment for controllably harvesting the forage crop material, the first agricultural work equipment including: a first forage processing assembly; a first control system including: a first forage processing assembly condition sensor configured for sensing a first actual condition of the first forage processing assembly and thereby for outputting a first actual condition signal associated with the first actual condition of the first forage processing assembly; a first controller operatively coupled with the first forage processing assembly condition sensor and the first forage processing assembly and configured for: receiving the first actual condition signal; determining a first adjustment signal based at least in part on the first actual condition signal and at least one first predicted forage crop material condition associated with a first forage processing operation; outputting the first adjustment signal and thereby for initially adjusting, prior to beginning the first forage processing operation, a first device of the first forage processing assembly.

The disclosure relates to a cutter for a cutting device for an agricultural harvester, comprising a cutter body with a first side and a second side. The cutter body has a cutting region with a cutting edge which extends along a longitudinal axis of the cutter body. The cutter comprises a pivot region with a first recess and a positioning region with a second recess for arrangement of the cutter on the cutting device of the agricultural harvester. The first recess is configured for receiving a pivot shaft of the cutting device, and the second recess is configured for receiving a positioning device. The cutter has at least a first and second hole.