A method for automatically guiding a motor grader includes receiving a desired final grade for a worksite and generating a steering path for steering the motor grader across the worksite and moldboard control instructions for actuating a moldboard of the motor grader as the motor grader moves across the worksite based at least in part on the desired final grade, at least one steering performance metric of a steering system of the motor grader, and at least one moldboard performance metric of a moldboard system of the motor grader. Moreover, the method includes receiving an input indicative of a ground speed of the motor grader. Additionally, the method includes controlling the steering system according to the steering path and the moldboard system according to the moldboard control instructions when the ground speed is within a threshold speed range.

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.

The bulldozer has a right first oil channel, a right second oil channel, and a right third oil channel. The right first oil channel guides a portion of the lubricating oil discharged by a hydraulic pump to a right steering brake. The right second first oil channel guides a portion of the lubricating oil discharged by the hydraulic pump to a right planetary gear mechanism. The right third oil channel guides at least a portion of the lubricating oil that has passed through the right planetary gear mechanism to a right steering brake. At least a portion of the planetary gear mechanism is disposed further inside than the right steering brake in a radial direction perpendicular to the center axis of an input shaft.

A first work machine includes a work implement. A method of controlling the first work machine includes acquiring a traveling state of the first work machine that is performing work with the work implement while traveling on a first work path, determining whether the first work machine is deviating from the first work path based on the traveling state, and stopping travel of the first work machine upon determining that the first work machine is deviating from the first work path.

A system includes a plurality of work machines, a communication device, an operating device, and a controller. The plurality of work machines are able to operate automatically. The plurality of work machines include a first work machine and a second work machine. The communication device communicates wirelessly with the plurality of work machines. The operating device transmits an operation signal to the plurality of work machines via the communication device. The operating device is able to operate the plurality of work machines remotely and individually. The controller disables the operation of the operating device on the first work machine when the first work machine and the second work machine are operating automatically.

A controller obtains topographical data indicative of the topography of a work site. The controller obtains material data indicative of the position of a material. The controller computes an evaluation function based on the material data for each of a plurality of candidates of the travel path to be decided from the topographical data. The evaluation function includes a material function pertaining to an amount of the material. The controller decides a candidate having a smallest evaluation function of the plurality of candidates as the travel path.

A work machine is provided with grade control capability using an imaging system, e.g., rather than GPS. The work machine includes at least one work implement for working at least part of a terrain, and first sensors (e.g., cylinder sensors) generate signals corresponding to positions of the work implement. Second sensors (e.g., stereo cameras) generate signals corresponding to positions of representative features of the terrain (e.g., curbs) in a field of view. A controller receives the signals and determines in a local reference system independent of a global reference system: first position information corresponding to the work implement; and second position information corresponding to the representative features. According to a selected control mode, target parameters for the work implement are determined based on the second position information corresponding to the representative features, and output signals are generated corresponding to a difference between the first position information and the target parameters.

A coordinated multi-vehicle grade control system and method includes receiving, by a first controller onboard a first work vehicle, a first grade control signal. The method and system also include receiving, by a second controller onboard a second work vehicle, a second grade control signal. Additionally, the method and system include orienting, by a first actuator of the first work vehicle, the first grading implement with respect to the first work vehicle according to the first grade control signal. Furthermore, the method and system include orienting, by a second actuator of the second work vehicle, the second grading implement with respect to the second work vehicle according to the second grade control signal. The second grade control signal is based, at least in part, on the first grade control signal to coordinate the orientation of the first grading implement with respect to the second grading implement along the grading pass.

A controller may determine, using a first sensor device of the machine, an articulation angle of the machine. The controller may adjust, based on the articulation angle, a size of an object detection area to obtain an adjusted object detection area. The object detection area may be associated with an articulation joint of the machine.

A control system for a work vehicle includes an acceleration detection device and a controller. The acceleration detection device detects an acceleration of the work vehicle. The controller determines whether the acceleration is greater than a first threshold and reduces the a vehicle speed when the acceleration continues to be equal to or greater than the first threshold over a predetermined first determination time period.