In a crop harvesting machine there is provided a pair of hydraulic float cylinders or springs for a header such as a rotary mower relative to a self-propelled vehicle, where a float spring force is controlled to provide a predetermined lifting force is provided to the header. The spring force is varied in response to detection of ground speed to decrease the lifting force at higher ground speeds. A position sensor is used to generate an indication of movement and/or acceleration. The electronic control is arranged, in response to changes in the sensor signal, to temporarily change the control signal to vary the lifting force and thus change the dynamic response of the hydraulic float cylinder. In order to reduce static friction so that the system can react quickly, an arrangement is provided for causing relative reciprocating movement in an alternating wave pattern between the piston and cylinder.

An agricultural harvester, such as a combine harvester, which has an auxiliary axle assembly for support of the feeder house of the harvester. The auxiliary axle assembly can be provided in a retracted position when in a field mode, and can be locked in an extended position when in a road mode, where a wheel of the assembly contacts the ground. When in the locked, extended position, the auxiliary axle assembly supports substantially all of the weight of the feeder house and any attached implements, allowing the feeder house to pivot relative to the main chassis of the harvester.

A reel assembly of a header for an agricultural vehicle. The reel assembly includes a pair of reel arms each comprising a first member and a second member pivotally connected to the first member, a reel movably connected to and positioned in between the second members of the reel arms, and a pair of actuators. Each actuator is operably connected in between the first member and the second member of a respective reel arm, the actuators are configured for pivoting the second members relative to the first members such that the reel is pivotable relative to the first members of the reel arms.

Provided is a harvester configured to effect a work-performing traveling for harvesting agricultural products in a field while traveling in the field autonomously. This harvester includes a traveling device effecting the work-performing traveling, a machine body supported to the traveling device, a harvesting section supported to a front portion of the machine body and harvesting the products in the field, an imaging device provided at a front portion of the machine body and at a position higher than the harvesting section so as to view down a product present in an un-worked area located forwardly of the harvesting section, a detecting section detecting abnormality in the field from an image imaged by the imaging device, and a controlling section executing an abnormality situation control as a control in accordance with the abnormality detected in the field.

An agricultural harvester includes a controller configured to receive at least one wing angle signal indicative of an angle at least one wing with respect to a center section of a header. The controller is also configured to receive a wing height position signal indicative of a distance between the at least one wing and a soil surface, determine whether the angle of the at least one wing exceeds an angle limit threshold based at least in part on the wing angle signal, and output a tilt signal to a tilt actuator in response to determining the angle of the wing exceeds the angle limit threshold. The tilt signal is indicative of instructions to maintain the distance between the at least one wing and the soil surface within a target distance threshold.

A ground contour sensing system and method for a vehicle with a mowing head. The system includes a sensor system that measures a ground contour in front of the mowing head, and generates contour measurement signals; and a controller that determines whether to move the mowing head based on the contour measurement signals, and generates movement commands for the mowing head when it determines to move the mowing head. The mowing head can include tilt and lift cylinders, and the controller can determine whether to move the mowing head using the tilt or lift cylinders. The sensor system can include a pivot arm that moves in response to changes in the ground contour, and an angle sensor that measures an angle of the pivot arm. There can be one or more sensor systems positioned between the right and left sides of the mowing head.

Method for detecting a work or agricultural vehicle mission through a neural network, wherein the vehicle is provided with an arm including at least two elements wherein one first element is connected to a vehicle frame and one second element is connected to the first element and means to detect a reciprocal degree of freedom between the first element and the frame and between the second element and first element such to assume a plurality of operation configurations, the method including, within an observation time interval, the monitoring of the arm in order detect frequency and time duration for each operation configurations and detecting the vehicle mission as a function of the balance of said frequencies and time durations.

A method for automatically controlling a height of a harvesting implement of an agricultural vehicle relative to a ground surface includes receiving height data from a plurality of height sensors spaced apart relative to the harvesting implement with a known spatial relationship and analyzing the height data in combination with position data associated with the known spatial relationship of the plurality of height sensors to establish a correlation between the height data and the position data. In addition, the method includes determining at least one control output for controlling an operation of a height cylinder and a tilt cylinder provided in operative association with the harvesting implement based on the established correlation, and controlling the operation of the height cylinder and/or the tilt cylinder based on the control output(s) to adjust the vertical positioning and/or the lateral tilt of the harvesting implement relative to the ground surface.

An agricultural vehicle header system having a center section, an inboard height sensor located on the center section between a lateral centerline and an end of the center section, a wing section movably attached to the end of the center section, a number of outboard height sensors located on the wing section between an inboard end and an outboard end of the wing section, and a header control subsystem. Each of the outboard height sensors is configured to output a respective outboard height sensor signal. The header control subsystem is operatively connected to the outboard height sensors, and configured to receive the respective outboard height sensor signals from each of the outboard height sensors, and generate a single emulated outboard height sensor signal based on the outboard height sensor signals.

An agricultural system includes an arm that supports a cutter bar assembly and is coupled to a fluid-filled biasing member such that the fluid-filled biasing member imparts a torque onto the arm. The agricultural system further includes an actuator and a controller. The actuator is coupled to the fluid-filled biasing member and is configured to move the fluid-filled biasing member relative to the actuator to change the torque imparted by the fluid-filled biasing member onto the arm. The controller is configured to determine a target position of the arm associated with a leveled configuration of the cutter bar assembly, receive an input to set the cutter bar assembly in the leveled configuration, and output a signal to instruct the actuator to set the fluid-filled biasing member relative to the actuator based on the target position upon receiving the input to set the cutter bar assembly in the leveled configuration.