A harvester is provided with a draper head that has a frame extending substantially across a working width of the draper head. Cutting elements are arranged at a front side of the draper head and connected to the frame. Conveying surfaces and conveying members transport cut crop from the cutting elements to a discharge location of the draper head. A reel extends transversely to a working direction of the draper head across the working width of the draper head. Reel support arms are pivotably supported on the frame and support the reel. A hydraulic adjusting drive is operatively connected to the reel support arms to pivot the reel support arms to carry out a height adjustment of the reel. A hydraulic circuit is operatively connected to the hydraulic adjusting drive and has a hydraulic valve that is able to lock the hydraulic circuit.

A system and method for reversing a movement direction of a laterally extending conveyor of a draper header of an agricultural machine. The system includes a fluid line for delivering fluid to a motor that drives the laterally extending conveyor. A directional flow control valve is connected to the fluid line and is movable between a first state in which the directional flow control valve is configured to deliver the fluid to the motor in a first fluid direction to cause the motor to move the laterally extending conveyor in a first movement direction, and a second state in which the directional flow control valve is configured to deliver the fluid to the motor in a second fluid direction that is different from the first fluid direction to cause the motor to move the laterally extending conveyor in a second movement direction that is opposite to the first movement direction.

In one aspect, a system for adjusting operating parameters of an agricultural harvester based on estimated crop volume values may include an image capture device configured to capture one or more images of the crop materials standing within the field prior to the crop materials being harvested by a harvester. The system may also include a controller communicatively coupled to the image capture device. The controller may be configured to estimate a crop volume value associated with a quantity of the crop materials transferred through the harvester based on the one or more images captured by the image capture device. Additionally, the controller may be further configured to initiate a control action associated with adjusting an operating parameter of the harvester based on a magnitude of the estimated crop volume value.

Systems and methods are disclosed herein for detecting impurities of harvested plants in a receptacle of a harvester. In an embodiment, a harvester controller receives, from a camera facing the contents of the receptacle, an image of the contents. The harvester controller applies the image as input to a machine learning model. The harvester controller receives, as output from the machine learning model, an identification of an impurity of the harvested plants. The harvester controller transmits a control signal based on the impurity.

Systems and methods are disclosed herein for optimizing harvester yield. In an embodiment, a controller receives a pre-harvest image from a front-facing camera of a harvester. The controller inputs the pre-harvest image into a model, and receives as output from the model a predicted harvest yield. The controller receives, from an interior camera of the harvester, a post-harvest image including the plants as harvested. The controller inputs the post-harvest image into a second model and receives, as output, an actual harvest yield of the plants as-harvested. The controller determines that the predicted harvest yield does not match the actual harvest yield, and outputs a control signal.

An example harvester that may include a weed seed devitalizer and a controller that automatically adapts or adjusts the weed seed devitalizer. The controller is to receive data from at least one sensor indicating forthcoming weed seeds and to output control signals controlling the weed seed devitalizer based on the data.

A combine is a combine in which an engine is arranged at a front portion of a traveling machine body. The combine includes a cooling device that cools the engine, and an electric controller that controls operation of the combine is arranged on one side surface of the cooling device.

A combine including a grain tank that retains grain conveyed from a threshing device; a discharge auger; a temporary retention unit within the grain tank that temporarily retains part of the grain and has a discharge port; a quality measurement unit that detects quality of the grain retained in the temporary retention unit; a shutter transitionable between a position where the discharge port is open and a position where the discharge port is closed; a control unit that opens the shutter when the measurement by the quality measurement unit is completed and closes the shutter when all of the grain in the temporary retention unit is discharged; a volume measurement unit that detects the retention volume of the grain retained in the grain tank; and a determination unit that determines whether the retention volume exceeds a predetermined value, and if so, the control unit stops the opening/closing control.

A method for calibrating a height control system for an implement of an agricultural work vehicle can include providing an input signal to the height control system to adjust a height of the implement relative to the ground surface; monitoring the height of the implement relative to the ground surface; adjusting at least one gain of the height control system; and determining a maximum stability gain of the height control system based on the at least one gain and the monitored height. The maximum stability gain can correspond with a stability point of the height control system at which the height control system transitions from stable to unstable. The method can include setting gain(s) of the height control system based on the maximum stability gain.

A system for monitoring a condition of a sickle of a header of an agricultural machine. The system includes a knife guard mounted to the header, a knife section of the sickle that is configured to move either along or with respect to a surface of the knife guard, and a sensor either mounted to the knife guard or another surface of the header for sensing the condition of the knife section.