A wheel loader includes a boom, a forward clutch, and a controller configured to control hydraulic pressure of hydraulic oil supplied to the forward clutch. The controller performs clutch hydraulic pressure control for bringing the forward clutch into a semi-engagement state by controlling the hydraulic pressure of the hydraulic oil supplied to the forward clutch on condition that the wheel loader advances while raising the boom in at least a loaded state.

A method for automated or automatic loading of a work tool of a work machine includes determining, as a function of operating conditions of the work machine, a probability of whether the work tool comes into or is in engagement with a material pile, and activating, in response to the determined probability being greater than a limit value, a load function for the automated or automatic loading. The method further includes ascertaining, when the load function is activated, a setpoint value for a lift position, a setpoint value for a tilt position, and a setpoint value for an accelerator pedal actuation as a function of a pressure measurement value on a hydrostat side of a power split transmission of the work machine, and ascertaining actuating signals for the automated or automatic loading as a function of a comparison of the ascertained setpoint values with corresponding actual values.

A control system for a material handling vehicle has a boom arm connected to a vehicle frame for rotation about the vehicle frame. An actuator is connected to the vehicle frame and the boom arm to cause the boom arm to rotate about the vehicle frame, and an attachment is connected to the boom arm for rotation with respect to the boom arm. The control system includes a controller that is configured to calculate a pre-determined acceleration limit of the attachment, and a sensor that senses acceleration of the attachment and communicate the sensed acceleration to the controller. The controller is configured to compare the pre-determined acceleration limit of the attachment to the sensed acceleration of the attachment and is configured to adjust a control valve to limit flow to the actuator in response to the sensed acceleration of the attachment being above the pre-determined acceleration upper limit.

A work equipment control device of a work vehicle includes state determination unit and an automatic dump determination unit. The state determination unit determines a work state of the work vehicle based on a traction force of the work vehicle and a posture of work equipment. An automatic dump determination unit determines an automatic dump availability mode indicating the availability in performing automatic dump control for automatically driving a bucket to a predetermined dump angle, in accordance with the work state.

A method for monitoring a machine operating at a worksite, is provided. The machine includes an implement for performing one or more implement operations and is configured to be propelled by a set of ground engaging members between a first location and second location. A first input indicative of start of a travelling operation of the machine after completion of a first implement operation at the first location, is received. One or more transmission parameters associated with the machine are determined, when the machine moves from first location to second location. A second input indicative of end of the travelling operation at start of a second implement operation at the second location is received. A number of revolutions completed by ground engaging members between the first location and the second location is determined based on the transmission parameters. The number of revolutions is displayed on input/output device associated with machine.

A method for estimating implement load weights includes controlling an operation of at least one component of the work vehicle to perform an automated boom movement operation during which a boom of a work vehicle is automatically moved across an angular range of boom positions from a starting position to a final position. The method also includes receiving load-related data associated with a load weight for an implement of the work vehicle as the boom is moved across the range of positions, and identifying at least one measurement region within the angular range of positions associated with a phase of the automated boom movement operation during which a boom velocity of the boom is maintained substantially constant. In addition, the method includes determining a region load weight the at least one measurement region based on the load-related data.

A motion control apparatus for controlling a control object to follow a target trajectory includes a position acquisition unit that acquires a present position of the control object, and a target trajectory generation unit that generates the target trajectory from the present position to a final position where the control object reaches. The apparatus includes a moving velocity determination unit that determines a moving velocity at which the control object moves in each position on the target trajectory, and a control target position calculation unit that sets a control target position in a traveling direction on a tangent vector of the target trajectory at the present position in order to perform feedback control so that the control object follows the target trajectory at the moving velocity. A control input calculation unit calculates a control input to the control object by the feedback control using the control target position as a target value.

A system includes a work machine, a camera, and a processor. The camera captures an image including a periphery of the work machine. A processor acquires image data indicative of a captured image captured by a camera. The processor acquires, from image data, a specific object present within the captured image and a distance from the work machine to the specific object by performing image analysis using an object detection model. The object detection model is trained an image of the specific object and the distance to the specific object. The processor controls the work machine based on the distance from the work machine to the specific object when the specific object is detected in the captured image.

This description provides an autonomous or semi-autonomous excavation vehicle that is capable of navigating through a dig site and carrying out an excavation routine using a system of sensors physically mounted to the excavation vehicle. The sensors collects any one or more of spatial, imaging, measurement, and location data representing the status of the excavation vehicle and its surrounding environment. Based on the collected data, the excavation vehicle executes instructions to carry out an excavation routine. The excavation vehicle is also able to carry out numerous other tasks, such as checking the volume of excavated earth in an excavation tool, and helping prepare a digital terrain model of the site as part of a process for creating the excavation routine.

A work vehicle includes a vehicle body, a work implement including an attachment, an operating device and a controller. The operating device can be operated to a dump side and a tilt side to cause the attachment to dump and tilt. The controller executes an automatic drive control in which the attachment is caused to dump as far as a predetermined dumping position when the operating device is operated by a first dump operation amount or greater to the dump side, or to tilt as far as a predetermined tilt position when the operating device is operated by a first tilt operation amount or greater to the tilt side. The controller disables the automatic drive control when a switching time period required for the operating device to be switched between the tilt and dump sides is at least a predetermined disabling time period.