CLAAS Selbstfahrende Erntemaschinen GmbH

A self-propelled forage harvester is disclosed that includes a blade sharpening and shear bar adjusting device, a monitoring device configured to cyclically generate information on the state of the cutterhead chopping glades and the distance of the shear bar to the cutting edge, and a control unit. The control unit evaluates the information provided by the monitoring device about the state of wear of the chopping blades and the distance, compares it with a limit value for the state of wear and/or the distance, where the limit value forms a lower limit for an optimum range to be maintained by the blade sharpening and shear bar adjusting device, of the instantaneous cutting sharpness of the chopping blades or of the distance and, when the limit value is reached, automatically triggers a sharpening process and/or of a shear bar adjustment by the blade sharpening and shear bar adjusting device.

A self-propelled combine for collecting and handling harvested material and a method for cleaning and/or referencing an optical measuring device of the self-propelled combine are disclosed. The self-propelled combine has a bypass device with an optical measuring device for determining harvested material properties of the partial flow of harvested material.

A driver assistance system of an agricultural harvesting machine with a harvesting header designed as a draper is disclosed. The driver assistance system comprises a memory for storing data and a computing device for processing the data saved in the memory. The draper comprises a central belt and at least one transverse conveyor belt arranged on the left side and the right side of the central belt for conveying the harvested material to the central belt. The draper forms, together with the driver assistance system, an automatic draper. The computing device operates the automatic draper as a characteristic diagram controller using the saved characteristic diagrams, with the automatic draper optimizing operating parameters of the draper and specifying the optimized operating parameters for the draper. The characteristic diagrams describe the relationship between the operating parameters and quality parameters, and a control characteristic curve is assigned to the particular characteristic diagram.

A self-propelled combine configured to collect and handle harvested material and a method for operating the self-propelled combine are disclosed. The combine may include a bypass device that includes an optical measuring device configured to determine one or more harvested material properties of the partial flow of harvested material. The bypass device may have at least one capacitive measuring device for determining the harvested material properties of the partial flow of harvested material.

A method for determining a sensor position in a separating device of a harvester, a sensor system, and a harvester. The method includes: accessing a separation function configured to determine a calculated separation; and determining a sensor position for at least one sensor for detecting an actual separation in that a respective position is determined in the separating device at which the separation function has a maximum sensitivity.

A self-propelled forage harvester and a method for controlling said forage harvester are disclosed. A measuring device of the forage harvester may have a plurality of electrodes spaced at a distance from each other. These electrodes may be arranged or positioned in an intermediate channel of a harvested material processing channel of the forage harvester and may form a plurality of capacitors. Further, delivery-specific parameters and/or material-specific parameters may be discernible from the measurements of the electrical capacitances of the plurality of capacitors.

An agricultural work machine comprising a driver assistance system. The driver assistance system is configured to automatically optimize and adjust work parameters and quality parameters of the agricultural work machine. The driver assistance system is assigned a process model comprising characteristic maps such that an optimization method implemented by the driver assistance system comprises a characteristic map control generating optimized work parameters as a control variable. The driver assistance system determines the quality parameters of the agricultural work machine depending on the optimized work parameters. The process model comprises a basic process model and an affine output layer assigned thereto, forming submodels. The basic process model is configured to map relationships between a plurality of process parameters in the characteristic maps for generating an optimized quality parameter, and the affine output layer is configured to define the particular quality parameter depending on two process parameters.

A combine harvester. The combine harvester includes a plurality of working units and a driver assistance system for controlling the working units. The driver assistance system comprises a memory for saving data and a computing device for processing the data saved in the memory. The working units and the driver assistance system form a setting machine in that a plurality of selectable harvesting process strategies are saved in the memory, and in that the computing device autonomously determines at least one setting parameter for the implementation of the selected harvesting process strategy and specifies it to the working units. An overall model per target variable is saved in the memory and forms functional relationships between the target variable and a plurality of influencing variables, which comprise internal and external influencing variables. The computing device performs the autonomous determination of the at least one setting parameter based on the overall model.

A driver assistance system for an agricultural work machine. The driver assistance system includes at least one control and regulation device, which is configured for an optimization process of work parameter and/or quality parameters of the agricultural working machine using performance maps saved therein. The optimization process is performed by specifying a process control strategy selectable by an operator. The driver assistance system is configured to detect a conflict of objectives during the execution of the optimization process and to interact with an operator of the agricultural work machine in order to resolve the conflict of objectives.

A combine harvester and a method for operating a combine harvester. The combine harvester includes a threshing device and a separating device as working units which process harvested material collected for separating grain and transfer a flow of harvested material containing substantially the grain to a cleaning device, which is another working unit. The cleaning device supplies a flow of harvested material containing unthreshed harvested material to the threshing device for rethreshing using a transfer device and supplies a cleaned flow of harvested material to a grain tank using a conveyor device. The combine harvester includes a camera system to recording images of the flow of material to be transferred and an image evaluation device to evaluate the images. A driver assistance system controls the working units based on indicators, determined by the image evaluation device evaluating the images, of processing losses caused by the working units.