A controller obtains dumping area data indicative the shape of an edge of a dumping area. The controller obtains material data indicative the shape of material in the dumping area. The controller decides, based on the material data, a plurality of segments into which the material is divided. The controller decides dumping positions of the dumping work according to combinations of the plurality of segments and the plurality of dumping candidate positions.

A method, system, and machine for controlling the output of an engine of a machine includes calculating the difference between a measured track slip based on track speed and ground speed and a calculated target track slip depending on track speed and chassis pitch, inputting the difference into a controller to determine a propulsion engine torque limit, and limiting the engine toque to the propulsion engine torque limit plus a steering system input torque.

A connection system for coupling a working assembly to a work vehicle includes a frame having a mounting portion at a first longitudinal end of the frame. The mounting portion is configured to directly couple to a frame of the work vehicle. The connection assembly also includes a mounting assembly at a second longitudinal end of the frame of the connection system. Additionally, the connection system includes a receiver assembly movably coupled to the frame of the connection system. The receiver assembly is configured to rotate about a point of rotation positioned along the frame of the connection system. The receiver assembly is configured to couple to a connector assembly on an arm of the work vehicle. A top part of the receiver assembly is substantially longitudinally aligned with the point of rotation while the receiver assembly is in a receiving position.

A motor drive assembly for a dual path electric powertrain of a machine is disclosed. The motor drive assembly may include a final drive assembly to engage a ground engaging element of the machine. The motor drive assembly may include an electric motor to provide torque to the final drive assembly. The motor drive assembly may include a planetary gear assembly mechanically coupled to a rotor shaft of the electric motor and an axle of the final drive assembly. The motor drive assembly may include a brake assembly to engage a component of the planetary gear assembly to retard the rotor shaft and the axle.

A blade control method includes: acquiring a design surface indicating a target shape of an excavation object to be excavated by a blade supported by a vehicle body of a work vehicle, the design surface including a first surface present in front of the work vehicle and a second surface disposed below the first surface and forming a level difference with a front end portion of the first surface; acquiring an observed pitch angle indicating an inclination angle of the vehicle body in a longitudinal direction; and calculating a specific part height indicating a height-direction distance between a specific part of the work vehicle and the second surface in a state in which at least a part of the vehicle body is positioned on the first surface and the blade is positioned above the second surface.

A control system for a work vehicle includes an actual topography acquisition device, a storage device, a soil amount acquisition device, and a controller. The actual topography acquisition device acquires actual topography information indicating an actual topography of a work target. The storage device stores design topography information indicating a final design topography. The soil amount acquisition device generates a soil amount signal indicating a held soil amount of the work implement. The controller acquires the actual topography information from the actual topography acquisition device and acquires the design topography information from the storage device. The controller generates a command signal for moving the work implement at position that is between the actual topography and the final design topography and is a predetermined distance above the actual topography. The controller acquires the soil amount signal and changes the predetermined distance based on the held soil amount.

A control system for a work vehicle includes a controller. The controller acquires actual topography data indicating an actual topography to be worked. The controller determines a target design topography indicating a target trajectory of a work implement of the work vehicle based on the actual topography. The controller acquires an uneven surface parameter indicating the degree of surface unevenness of the actual topography. The controller changes the target design topography according to the uneven surface parameter.

Provided is a construction machine that can prevent a machine body from being lowered without placing a blade in a floating state when the machine body is jacked up, even if the operator performs an erroneous operation, and that can perform favorable leveling work by placing the blade in the floating state when the machine body is not jacked up. A hydraulic excavator includes a pressure sensor that detects the pressure in a bottom-side oil chamber of a blade cylinder, and a controller that switches between validation and invalidation of a floating command and a lowering command for a blade operation device. In the case where the pressure detected by the pressure sensor is less than a predetermined value, the controller switches a solenoid selector valve to an interruption position to invalidate the floating command when a forward stroke of the operation lever is equal to or more than a reference value. In the case where the pressure detected by the pressure sensor is equal to or more than the predetermined value, the controller holds the solenoid selector valve in a communication position to validate the floating command when the forward stroke of the operation lever is equal to or more than the reference value.

A system and method are provided for determining the position and orientation of an implement on a work machine in a non-contact manner using machine vision. A 3D camera, which is mounted on the vehicle with a field of view that includes components on the implement (e.g., markers in some examples), determines a three-dimensional position in a local coordinate system of each of the components. A global positioning system in cooperation with an inertial measurement unit determines a three-dimensional position and orientation of the 3D camera in a global coordinate system. A computing system calculates a three-dimensional position in the global coordinate system for the components using the local three-dimensional positions of the components and the global three-dimensional position and orientation of the 3D camera. The position and orientation of the implement can then be calculated based on the calculated global three-dimensional positions of the components.

A work vehicle including: an engine mounted on a traveling body; a straight-traveling system transmission path including a first stepless transmission device; and a turning system transmission path including a second stepless transmission device. The work vehicle combines an output of the straight-traveling system transmission path and an output of the turning system transmission path to drive left and right traveling units. The work vehicle further includes: control sections that control the output of the straight-traveling system transmission path and the output of the turning system transmission path in cooperation with each other; and a driving force blocking mechanism that blocks a driving force transfer from the straight-traveling system transmission path. When the driving force transfer from the straight-traveling system transmission path is blocked by the driving force blocking mechanism, the mutually reverse rotation operations of the left and right traveling units is inhibited.