A work vehicle includes a work implement. A control system for the work vehicle includes a controller that controls the work implement. The controller obtains a first design topography. The controller determines a second design topography. At least a portion of the second design topography is positioned above the first design topography. The controller generates a command signal to operate the work implement in accordance with the second target design topography. The controller changes a tilt angle of the work implement when at least a portion of the second design topography is positioned below the first design topography.

A ripper assembly for a machine includes a main ripper unit and at least one auxiliary ripper unit. The main ripper unit is adapted to be coupled to a frame of the machine and is moveable relative to the frame along a height of the machine. The main ripper unit includes a main ripper. The auxiliary ripper unit is pivotably coupled to the main ripper unit, and is pivotable infinitely between a first position and a second position with respect to the main ripper unit. A distance between the main ripper unit and the auxiliary ripper unit, defined laterally in relation to a direction of travel of the machine, varies as the auxiliary ripper unit pivots from the first position to the second position.

A work vehicle includes a work implement. A control system for the work vehicle includes an operating device that outputs an operation signal indicative of an operation by an operator, and a controller that communicates with the operating device and controls the work implement. The controller determines a target design topography indicative of a target topography. The controller generates a command signal to operate the work implement in accordance with the target design topography. When a tilt angle of the work implement is changed with an operation of the operating device, the controller corrects the tilt angle of the work implement in accordance with the changed tilt angle.

In accordance with one embodiment of the present disclosure, a material moving machine comprises a pilot hydraulic switching system. The pilot hydraulic switching system comprises a control unit, a first directional valve, and a second directional valve. The control unit is configured to operate the first and second directional valves to shift a variable position actuator valve between a static state, a retract state, and an extend state. The actuator valve comprises a first and second control element. In the retract and extend states, the first and second directional valves control fluid flow to the variable position actuator valve with a positive net pressure on either the first or second control elements and a negative net pressure on the other control element to move the material moving implement. In the static state, the first and second directional valves control fluid flow equally on the first and second control elements.

A work machine including a frame, a ground-engaging element movably coupled to the frame, a movable grading element, an actuator coupled to the movable grading element to controllably drive movement of the movable grading element engaging material to be graded, a sensor, and a controller. The controller comprises a memory that stores computer-executable instruction and a processor that executes the instructions. The instructions include labelling each of at least a plurality of pixels in a first image as a visual marker; selecting the first image as a reference keyframe; tracking at least one region of a subsequent image including the visual marker relative to the reference keyframe to determine an estimate of the current pose as the work machine moves; and adjusting a position of the movable grading element.

A method for control of a compacting machine including a ground-engaging implement and a compacting drum includes receiving a request to activate the compacting machine, receiving a command to propel the compacting machine, and automatically generating a command to move the implement to a raised position in which the implement does not engage the ground based on: the request to activate the compacting machine, the command to propel the compacting machine, or a determination that the implement is below a threshold height. The method also includes, once the implement is in the raised position, propelling the compacting machine.

A crawler dozer includes a main frame having a longitudinal central axis. A push frame includes left and right push beams. A dozer blade is pivotally connected to the left and right push beams. At least one tilt cylinder is connected between the dozer blade and at least one of the left and right push beams. The tilt cylinder includes a larger cylinder portion pivotally connected to the dozer blade and a smaller piston portion pivotally connected to the at least one of the left and right push beams. The tilt cylinder includes a cylinder axis diverging laterally outward relative to the longitudinal central axis of the main frame in a forward direction by a splay angle of at least 2 degrees.

A work vehicle includes a work implement. A control system for the work vehicle includes an operating device and a controller. The operating device outputs an operation signal indicative of an operation by an operator. The controller communicates with the operating device and controls the work implement. The controller determines a first target design topography. The controller generates a command signal to operate a work implement in accordance with the first target design topography. The controller obtains a displacement amount of the work implement with respect to the first target design topography upon receiving the operation signal indicative of the operation of the work implement during work in accordance with the first target design topography. The controller determines a second target design topography based on the displacement amount. The controller generates a command signal to operate the work implement in accordance with the second target design topography.

A track-type tractor may comprise an operator cab, an engine, a frame supporting the operator cab and the engine, and an implement configured to move a load. The track-type tractor may further comprise at least one hydraulic lift cylinder configured to raise and lower the implement. The hydraulic lift cylinder may include a head end, a rod end, and a cylinder barrel. The cylinder barrel may be connected to the backside of the implement, and the rod end may be connected to the frame.

A system includes a receiver mounted on a work machine, and a processor. The receiver receives a signal usable to identify a position of the work machine. The processor acquires a position of the receiver from the signal received by the receiver. The processor acquires a calculated position of a calibration point in the work machine by calculating a position of the calibration point from the position of the receiver. The processor acquires an actual position of the calibration point. The processor generates calibration data usable to calibrate a position of a reference point in the work machine by comparing the actual position with the calculated position of the calibration point.