A control system for a machine may include a chassis an implement attached to the chassis, a first sensor, a second sensor, and a controller in communication with the first and second sensors. The first sensor may be configured to generate a first signal indicative of an angle of the implement with respect to the chassis. The second sensor may be configured to generate a second signal indicative of an angle of the chassis with respect to gravity. The controller may be configured to determine an implement mainfall angle based on the first signal and the second signal; process the second signal using a low pass filter to determine a filtered chassis pitch angle; determine a target mainfall angle based on the first signal and the filtered chassis pitch angle; and generate a command signal based the target mainfall angle and the implement mainfall angle.

A dozer blade assembly for connection to a vehicle having a vertically movable mount, the dozer blade assembly including a blade connected to a blade support frame by a universal joint, and being pivotally movable relative to the blade support frame about a vertical yaw axis so as to turn left or right, about a lateral pitch axis so as to rotate forward or rearward, and about a longitudinal roll axis so as to tilt left or right. The dozer blade assembly further includes at least one yaw actuator, at least one pitch actuator and at least one roll actuator, with the actuators connected to the blade and to the blade support frame in locations that permit compound movements of the blade relative to the blade support frame.

A grading control system may have a lift actuator to raise or lower a work implement, and a tilt actuator to tilt the work implement. The grading control system may also have a first sensor that communicates a signal indicative of a position of the work implement, and a second sensor that communicates a signal indicative of a position of the machine frame. The grading control system may have a controller to determine a track plane of the machine and a desired grade relative to the track plane. Further, the controller may determine an orientation of the work implement relative to the track plane to maintain the desired grade based on the sensor signals. The controller may also be configured to actuate one or both of the lift and the tilt actuators to orient the work implement according to the determined orientation.

A system, method, and apparatus includes measuring wear of a cutting edge of a blade of a work vehicle. Blade position or calibration measurements are made with or without a cutting edge. A wear condition of the cutting edge is acceptable when the blade position measurement less an acceptable wear to the cutting edge amount is less than a blade calibration measurement. A wear condition of the cutting edge is unacceptable when the blade position measurement less an acceptable wear to the cutting edge amount is greater than a blade calibration measurement. Alternatively, a wear condition of the cutting edge is unacceptable when a blade calibration measurement plus a tolerance margin is greater than the blade position measurement. The wear condition of the cutting edge is acceptable when the blade calibration measurement plus a tolerance margin is less than the blade position measurement.

A sensor outputs a signal indicating an excavation start position at which a work implement starts excavation. A controller determines an inclination angle of a virtual design surface so that an amount of soil between the virtual design surface extending from the excavation start position and a current landscape matches a predetermined target amount of soil. The controller generates a command signal that causes the work implement to move along the virtual design surface extending from the excavation start position in a direction inclined at the inclination angle.

An example work machine control system may include cost factor logic to obtain a cost factor for a resource, cost variable logic to obtain a consumption signal from a consumption sensor indicative of consumption of the resource, fill measurement logic configured to receive a fill signal from a fill sensor, the fill signal indicative of a fill state of a container of an earth-moving work machine, fill target logic to determine a target fill level for the container based on the cost factor, the consumption signal and the fill signal and control logic to generate a machine control signal based on the target fill level.

A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information, which indicates an actual topography of a work target. The storage device stores design topography information, which indicates a final design topography that is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device. The controller acquires the design topography information from the storage device. The controller generates a command signal to move the work implement along a locus that is more gently sloped than the actual topography when the actual topography positioned below the final design topography is sloped.

A system for moving material with a ground engaging work implement determines a topography of the work surface, a maximum cutting capacity for a cutting operation, and a maximum carrying capacity for a carrying operation. A first double cut location is determined based upon the maximum carrying capacity and the topography of the work surface and a second double cut location is determined based upon the maximum carrying capacity and a modified topography of the work surface. Individually, the amount of material from each of the first and second double cut locations is less than the maximum cutting capacity, and combined is less than the maximum carrying capacity. A first forward double cut command moves the first double cut material to an intermediate position and a second forward double cut command moves the first double cut material and the second double cut amount of material to a dump location.

A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller obtains actual topography data indicative of an actual topography of a work site. The controller determines a target depth. The controller obtains positions of a plurality of division points positioned on the actual topography based on the actual topography data. The controller determines a plurality of reference points by displacing the plurality of division points in a vertical direction by the target depth. The controller determines a target design topography based on the plurality of reference points. The controller generates a command signal to operate the work implement in accordance with the target design topography.

Graders and methods of operation thereof are disclosed herein. A grader includes a chassis, a saddle linkage, and a motion measurement system. The saddle linkage is supported for movement relative to the chassis and includes a mount movably coupled to the chassis, first and second arms each movably coupled to the mount, and a crossbar movably coupled to each of the first and second arms. The mount has a lock pin aperture, each of the first and second arms has a locking hole, and the crossbar has a plurality of locking holes. The lock pin aperture may be aligned with one locking hole of the first arm, the second arm, or the crossbar to position the saddle linkage in use of the grader. The motion measurement system is coupled to the saddle linkage and configured to measure movement or position of one or more components of the grader in use thereof.