Abstract: Methods and apparatus to generate calibration models in a cloud environment are disclosed. An example apparatus includes training circuitry to generate a calibration model based on a correlation of reference data and spectra, the reference data based on physical samples collected by one or more vehicles, the spectra associated with the physical samples, and distribution circuitry to provide, via a network communication, the calibration model to the one or more vehicles.

Abstract: An automatic steering system for a work vehicle comprises a position sensor for detecting a position of the vehicle, a memory for storing information about a nominal path of the vehicle and a control unit coupled to the position sensor, to the memory and to a steering actuator for steering the vehicle. The control submits control signals to the steering actuator that depend upon a feedback gain and a lateral offset between the actual position and the nominal path. The feedback gain depends upon a sensed payload of the vehicle.

Abstract: A method, a controller and a vehicle for performing agricultural operations on a field with parallel arranged rows having ends. The operations are performed at positions related to the positions of the rows under control of the controller, based upon stored information about the orientation of the rows, stored information about a distance between adjacent rows, a distance signal related to a distance traveled by the vehicle and a direction signal related to the heading of the vehicle. The invention is particularly suited for providing dams to prevent water from a head ditch to enter into pre-selected, dry furrows on a field with an irrigation arrangement with raised rows and lower furrows between the rows, or dams matching up with adjacent raised rows so that water runs down each furrow.

Abstract: An automatic steering system for a work vehicle comprises a position sensor for detecting a position of the vehicle, a memory for storing information about a nominal path of the vehicle and a control unit coupled to the position sensor, to the memory and to a steering actuator for steering the vehicle. The control submits control signals to the steering actuator that depend upon a feedback gain and a lateral offset between the actual position and the nominal path. The feedback gain depends upon a sensed payload of the vehicle.

Abstract: A method, a controller and a vehicle for performing agricultural operations on a field with parallel arranged rows having ends. The operations are performed at positions related to the positions of the rows under control of the controller, based upon stored information about the orientation of the rows, stored information about a distance between adjacent rows, a distance signal related to a distance traveled by the vehicle and a direction signal related to the heading of the vehicle. The invention is particularly suited for providing dams to prevent water from a head ditch to enter into pre-selected, dry furrows on a field with an irrigation arrangement with raised rows and lower furrows between the rows, or dams matching up with adjacent raised rows so that water runs down each furrow.