A tillage implement includes a frame, at least one sensor carried by the frame and configured to measure a property of soil, and at least one gang assembly carried by the frame and following the at least one sensor. Each gang assembly carries a plurality of disc blades. An adjustment mechanism is operable to change an operating parameter of the gang assembly responsive to the measured property of the soil. A method of working an agricultural field includes detecting a property of soil in the agricultural field using at least one sensor carried by a tillage implement and adjusting an operating parameter of at least one gang assembly carried by the tillage implement. The gang assembly follows the sensor as the tillage implement traverses the field. The operating parameter of the gang assembly is based at least in part on the property detected by the sensor.

A gauge wheel (1) for use in controlling the depth of a furrow formed by at least one planting member of cultivation equipment includes a hub member (5) having a central hub and an outer peripheral portion (9); and a resilient coil member (3). The resilient coil member (3) includes a plurality of coil windings (17) which extend closely adjacent to the outer peripheral portion (9) of the hub member (5) and which define an outer periphery of the gauge wheel (1). The coil member (3) is connected at or adjacent one end thereof to the hub member (5). In use, the resilient coil member engages the soil on a side of the furrow and controls the depth by which the at least one planting member cuts into the soil to form the furrow. There is also provided a coulter gauge wheel which includes a coulter disc and at least one gauge wheel as described above.

A control system for controlling pivoting of a header of an agricultural harvester. The control system includes first, second, and third header height sensors, each for mounting to a respective point on the header, each configured to provide a respective header height signal representing a respective measured header height of their respective point on the header above a ground plane. The control system further includes a header angle sensor configured to provide a header angle signal indicative of a pivot angle of the header about an axis; and a processor configured to: receive the signals; calculate an estimated first header height based on the pivot angle and the second and third header heights; determine a replacement first header height by selecting the smallest of the estimated and the measured first header height; and generate a control signal based at least on the replacement first header height.

A system for managing material accumulation relative to ground engaging tools of an agricultural implement may include a ground engaging tool and an acoustic sensor configured to generate data indicative of an acoustic parameter of a sound produced as the ground engaging tool engages the ground when a ground engaging operation is performed within a field. Additionally, the system may include a controller communicatively coupled to the acoustic sensor. The controller may be configured to monitor the data received from the acoustic sensor and determine a presence of material accumulation relative to the ground engaging tool based at least in part on the acoustic parameter.

A method for the vertical calibration of an agricultural machine wear tool is provided. The method includes: placing the wear tool in contact with a reference area; measuring the value of a position variable linked to the positioning of the wear tool when it is in contact with the reference area; determining the theoretical vertical positioning component of the wear tool according to the value measured, based on a reference curve; and determining a matching curve between a vertical positioning component of the wear tool and the position variable, by shifting the reference curve by a value equal to the theoretical vertical component.

A method for the vertical calibration of an agricultural machine wear tool is provided. The method includes: placing the wear tool in contact with a reference area; measuring the value of a position variable linked to the positioning of the wear tool when it is in contact with the reference area; determining the theoretical vertical positioning component of the wear tool according to the value measured, based on a reference curve; and determining a matching curve between a vertical positioning component of the wear tool and the position variable, by shifting the reference curve by a value equal to the theoretical vertical component.

A control system for a double-acting air cylinder of an agricultural implement includes a valve assembly configured to control a base end air pressure and a rod end air pressure of the double-acting air cylinder. The control system also includes a controller communicatively coupled to the valve assembly. The controller is configured to determine a target base end air pressure and a target rod end air pressure based on a target force of the double-acting air cylinder and a target damping factor of the double-acting air cylinder. The controller is also configured to control the valve assembly such that a first difference between the base end air pressure and the target base end air pressure is less than a first threshold value and a second difference between the rod end air pressure and the target rod end air pressure is less than a second threshold value.

A control system for a double-acting air cylinder of an agricultural implement includes a valve assembly configured to control a base end air pressure and a rod end air pressure of the double-acting air cylinder. The control system also includes a controller communicatively coupled to the valve assembly. The controller is configured to determine a target base end air pressure and a target rod end air pressure based on a target force of the double-acting air cylinder and a target damping factor of the double-acting air cylinder. The controller is also configured to control the valve assembly such that a first difference between the base end air pressure and the target base end air pressure is less than a first threshold value and a second difference between the rod end air pressure and the target rod end air pressure is less than a second threshold value.

A soil imaging system having a work layer sensor disposed on an agricultural implement to generate an electromagnetic field through a soil area of interest as the agricultural implement traverses a field. A monitor in communication with the work layer sensor is adapted to generate a work layer image of the soil layer of interest based on the generated electromagnetic field. The work layer sensor may also generate a reference image by generating an electromagnetic field through undisturbed soil. The monitor may compare at least one characteristic of the reference image with at least one characteristic of the work layer image to generate a characterized image of the work layer of interest. The monitor may display operator feedback and may effect operational control of the agricultural implement based on the characterized image.

An agricultural implement system includes a down force cylinder configured to apply a downward force to a row unit, and a depth control cylinder configured to vary a penetration depth of a ground engaging tool of the row unit. The agricultural implement system also includes a valve assembly in fluid communication with the down force cylinder and the depth control cylinder. The valve assembly is configured to automatically adjust the downward force by varying fluid pressure within the down force cylinder based on fluid pressure within the depth control cylinder.