A mobile work machine includes a frame; ground engaging elements movably supported by the frame and driven by a power source to drive movement of the machine; a moveable element movably supported by the frame to move relative to the frame; an actuator coupled to the moveable element to controllably drive movement of the moveable element; a control system that generates an actuator control signal, indicative of a commanded movement of the actuator, and provides the actuator control signal to the actuator to control the actuator to perform the commanded movement; a terrain identifier configured to identify a characteristic of terrain in a geographic area around the machine; and a stability system that determines whether the commanded movement will result in an unstable state of the machine based on the characteristic of the terrain and, if so, generates a restriction signal, restricting the commanded movement to avoid the unstable state.

A control method of a work machine includes: calculating a maximum flow rate of hydraulic oil discharged from a hydraulic pump; calculating a first target speed of working equipment including a bucket based on an operation amount of an operation device operated for driving a plurality of hydraulic actuators to which the hydraulic oil discharged from the hydraulic pump is supplied to drive the working equipment and a distance between the bucket and a target excavation landform; calculating a second target speed of the working equipment based on the maximum flow rate, and the operation amount of the operation device and the distance between the bucket and the target excavation landform; and outputting a control signal for controlling the hydraulic actuators based on a smaller one of the first target speed and the second target speed.

A calibration device for an imaging device includes an imaging data acquisition unit that acquires imaging data of a known external target installed at a known position outside a work range of work equipment, the imaging data being obtained by imaging of at least one imaging device provided in a work machine including the work equipment, an external target position acquisition unit that acquires a position of the known external target, and a calibration unit that calibrates the imaging device based on the position of the known external target, which is acquired by the external target position acquisition unit, and the imaging data of the known external target, which is acquired by the imaging data acquisition unit.

A work vehicle includes a work implement operatively connected to a frame through an actuator having a cylinder and a piston rod. Control circuitry is operatively connected to the actuator and includes a processer and a memory, wherein the memory is configured to store program instructions and the processor is configured to execute the stored program instructions to: identify one of an initial retracted reference position of the piston rod based on an initial minimum retracted distance or an initial extended reference position of the piston rod based on an initial maximum extended distance; identifying an end of stroke position of the piston rod after identifying one of the initial retracted reference position of the piston rod or the initial extended reference position of the piston rod; and moving the work implement with respect to the work vehicle based on a work implement command modified by the identified end of stroke position.

A shovel includes a lower traveling body, an upper traveling body turnably mounted on the lower traveling body, a hydraulic actuator, an operating apparatus configured to be operated to operate the hydraulic actuator, an object detector configured to detect an object within a predetermined area around the shovel, a gate lock lever configured to switch the operating apparatus between an enabled state and a disabled state, and a control device. The control device is configured to switch the operating apparatus between the enabled state and the disabled state separately from the gate lock lever, and to disable the operating apparatus in response to determining that the object is present within the predetermined area based on the output of the object detector while the operating apparatus is switched to the enabled state by the gate lock lever, during the standby state of the shovel.

A diagnostic system for a motor grader with a blade, a drawbar member, and a center shift mounting member associated with a drawbar-circle-moldboard (DCM) includes actuators connecting the blade to the DCM and interconnecting other components of the motor grader. The actuators affect movement of the blade relative to the DCM and affect movement of the other interconnected components relative to each other. Sensors generate signals indicative of a current position of the blade and positions of the other components of the motor grader. An input device receives an operator input indicative of a selection of predefined, diagnostic positions that can be checked visually by the operator for confirmation of proper operation. A controller selectively actuates the actuators based on the selection of a diagnostic position and a signal indicative of the current position of the blade to move the blade and other components of the motor grader into the selected diagnostic position.

A work machine includes a manipulation device, a surrounding area monitoring device, and a controller. The manipulation device outputs a manipulation signal to operate the work machine. The surrounding area monitoring device serves as a device for detecting whether an object to be recognized is present or not inside a set region that is set in a surrounding area of the work machine. The controller controls the work machine. The controller is capable of switching a setting of an object sensing function between execution and non-execution, the object sensing function being to restrict movement of the work machine when it is detected that the object is present inside the set region. When the manipulation signal is detected in a state where the object sensing function is set at non-execution, the controller switches the setting of the object sensing function to execution.

A construction system includes: a position data acquisition unit configured to acquire position data of a bottom of water; a current-terrain data generation unit configured to generate current terrain data of the bottom of water based on the position data; a target-terrain data generation unit configured to generate target terrain data of the bottom of water based on the current terrain data; and a working equipment control unit configured to control a working equipment of a work vehicle based on the target terrain data.

A system and method are provided for assisting transport vehicle drivers in material discharge for optimized working at a worksite by work machines such as dozers. A first user interface associated with the work machine accesses a map comprising three-dimensional data corresponding to at least a portion of the worksite. User input is received via the first user interface corresponding to desired discharge location(s) in the worksite to be worked, and output signals are generated for modifying a display on a second user interface associated with the transport vehicle, said modifications corresponding to the received user input and for directing the transport vehicle to the desired discharge locations. The two vehicles may share a common mapping unit such that input from the work machine is applied substantially in real-time at the transport vehicle. Alternatively, the inputs may be translated across mapping units to generate appropriate positioning instructions.

System and methods are provided for dynamic characterization of an area to be worked using a work implement of a work machine. First real-time data (e.g., surface scan data) are collected in a forward direction via a first sensor external to or onboard the work machine, and second real-time data (e.g., surface scan data) are collected for at least a traversed portion of the work area via a second onboard sensor. Characteristic values of a ground material in the work area are determined based on at least the first and second data corresponding to a given surface, and outputs are generated corresponding to at least a determined amount of material needed to achieve target values for the work area, based on at least one of the characteristic values. Certain characteristic values based on the real-time data may be used to estimate, among other things, how many truck loads are still required for the work area.