A work assist device includes a body coordinates information acquiring unit, a body orientation information acquiring unit, a work member position information acquiring unit, a specific part coordinates computing unit, a placement information receiving unit, a distance information input unit, a construction surface computing unit, a storage unit, and a construction information output unit. The specific part coordinates computing unit can compute absolute coordinates of a specific part of a work member, from acquired information from each acquiring unit. The construction surface computing unit determines an equation for a construction surface in an absolute coordinate system at a work site, from absolute coordinates of three ground reference points at which the specific part is placed in order and three pieces of distance information indicating a distance from the ground reference points to the construction surface.

Systems and methods for automatically adjusting a motor grader can include receiving one or more identifiers corresponding to a configuration of the motor grader; determining, based at least in part on the one or more identifiers, a position of a leading edge of a blade of the motor grader relative to a rear frame axis of the motor grader; and, if the determined position is not within an operating threshold, causing a frame actuator of the motor grader to change an articulation angle of the frame to move the leading edge to within the acceptable threshold.

A vehicular accessory system includes a first accessory pivotable in a first direction via pressurized fluid at a first actuator and pivotable in a second direction via pressurized fluid at a second actuator, and a second accessory pivotable in a third direction via pressurized fluid at a third actuator and pivotable in a fourth direction via pressurized fluid at a fourth actuator. A valve assembly is in fluid communication with the first, second, third and fourth actuators. Responsive to pivoting of the first accessory to a first fully pivoted orientation, the valve assembly automatically operates to supply pressurized fluid to the third actuator to pivot the second accessory in the third direction. Responsive to pivoting of the first accessory to a second fully pivoted orientation, the valve assembly automatically operates to supply pressurized fluid to the fourth actuator to pivot the second accessory in the fourth direction.

Provided is a construction machine equipped with a dozer and capable of holding the dozer in an upper position. The construction machine includes a dozer cylinder that brings the dozer into rotational movement, a first cylinder pin, a first connection member joined with an end of the first cylinder pin and defining a first through-hole, a second cylinder pin, a second connection member joined with an end of the second cylinder pin and defining a second through-hole, and a fixing member to be detachably connected to the first and second connection members to interconnect them and thereby fix the dozer in the upper position.

A work machine and method for grading a ground surface may include a frame, a ground-engaging attachment, an attachment coupler coupling the ground-engaging attachment to the frame, an actuator enabling movement of the ground-engaging attachment, an adjustable linkage to adjust a position of the ground-engaging attachment relative to the frame, an adjustable linkage, a sensor, and a controller. The adjustable linkage adjusts a position of the ground-engaging attachment relative to the frame. The adjustable linkage comprises of a first portion and a second portion, an enclosure encircling the second portion wherein the enclosure creates an annular chamber between the enclosure and the second portion. A sensor is coupled to the annular chamber and measures a pressure in the chamber. A controller may be configured to monitor the sensor signal, and perform one or more actions based on the sensor signal.

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 hydraulic pump is driven by an engine. A hydraulic motor is driven by hydraulic fluid discharged from the hydraulic pump thereby causing a vehicle to travel. A controller controls a rotation speed of the engine and a displacement of the hydraulic pump. The controller acquires a tractive force of the vehicle. The controller changes the rotation speed of the engine to a low speed side in accordance with a reduction in the tractive force.

A load sensing valve maintains a differential pressure at a set pressure by controlling a regulator in accordance with a differential pressure between a discharge pressure of a hydraulic pump and a load pressure of hydraulic actuators. A set pressure control device controls the set pressure. A controller controls the set pressure control device to reduce the set pressure more than when the work implement is being operated, when a predetermined determination condition that includes the work implement not being operated is satisfied.

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.

A plow system includes a mounting structure configured to mount at a vehicle, with a center plow pivotally attached at the mounting structure. The center plow is pivoted in a first direction responsive to actuation of a first actuator and is pivoted in a second direction responsive to actuation of a second actuator. A first plow wing is pivotally mounted at a first end of the center plow and a second plow wing is pivotally mounted at a second end of the center plow. Responsive to pivoting of the center plow to a first fully pivoted orientation toward a first side of the vehicle, the first and second plow wings both pivot to a forward orientation. Responsive to pivoting of the center plow to a second fully pivoted orientation toward a second side of the vehicle, the first and second plow wings both pivot to a rearward orientation.