A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a surroundings monitoring device attached to the upper turning body, and a controller configured to identify the state of an object based on the output of the surroundings monitoring device.

A shovel (100) according to embodiments of the present invention includes a lower travelling body (1), an upper pivot body (3) pivotably mounted to the lower travelling body (1), an excavation attachment (AT) rotatably mounted to the upper pivot body, and a controller (30) provided to the upper pivot body (3). The controller (30) is configured to autonomously perform a compound operation including an operation of the excavation attachment (AT) and a pivot operation. The controller (30) may be configured to, in response to an automatic switch (NS2) provided in a cabin (10) mounted to the upper pivot body (3) being operated, autonomously perform the compound operation.

A control system for a machine may include a chassis an implement attached to the chassis, a first sensor, a second sensor, and a controller in communication with the first and second sensors. The first sensor may be configured to generate a first signal indicative of an angle of the implement with respect to the chassis. The second sensor may be configured to generate a second signal indicative of an angle of the chassis with respect to gravity. The controller may be configured to determine an implement mainfall angle based on the first signal and the second signal; process the second signal using a low pass filter to determine a filtered chassis pitch angle; determine a target mainfall angle based on the first signal and the filtered chassis pitch angle; and generate a command signal based the target mainfall angle and the implement mainfall angle.

According to the present invention, a display system of a turning work vehicle is used for the turning work vehicle in which a work machine having a bucket 8 can be offset relative to a revolving superstructure in the horizontal direction. The display system includes: an arithmetic unit that calculates the position of the bucket on the basis of a detection result obtained by a position detecting device provided on the turning work vehicle, and calculates a necessary revolving amount of the revolving superstructure and a necessary offset amount of the work machine that are needed to align a side section of the bucket with a side edge of a predetermined excavation area; and a display device that displays the positional relationship between the bucket and the predetermined excavation area.

Provided is a slewing-type hydraulic work machine including a boom raising working pressure detection unit that detects boom raising working pressure, and a capacity control device that controls a slewing motor capacity during a slewing and boom-raising operation and performs detecting an actual slewing distribution factor correspondence value corresponding to a ratio of energy distributed to a slewing motor to energy of discharged hydraulic oil, setting a boundary value of the actual slewing distribution factor correspondence value to limit the ratio more with increase in boom raising working pressure, and a capacity operation of making the slewing motor capacity higher than a limit capacity within a slewing priority allowable period until the actual slewing distribution factor correspondence value reaches the boundary value during the slewing and boom-raising operation and limiting the slewing motor capacity to the limit capacity or less after the slewing priority allowable period.

A construction machine capable of achieving favorable operability in a combined operation is provided. A hybrid excavator includes: a boom cylinder 10 driven by hydraulic fluid from a hydraulic pump 16b; a swing hydraulic motor 5 driven by hydraulic fluid from the hydraulic pump 16b; a swing electric motor 6 connected mechanically with the swing hydraulic motor 5; an inverter 19 that controls operation of the swing electric motor 6; and a controller 21 that outputs to the inverter 19 a torque command value for controlling electric driving torque or electricity generating torque of the swing electric motor 6. The controller 21 includes a torque command value calculation section 24 that receives inputs of a swing operation amount signal of an operation lever device 15a and a boom raising operation amount signal of an operation lever device 15b and that outputs a torque command value of the electricity generating torque of the swing electric motor 6 to the inverter 19 when load pressure of the swing hydraulic motor 5 is determined to be higher than load pressure of the boom cylinder 10.

A method for controlling the ground grip of a wheeled loader having a pair of front wheels, a bucket, and at least one boom, comprising measuring the relative position of said front wheels with respect to the ground, detecting the reaching of a critical threshold value by measuring the relative position of the front wheels with respect to the ground, comparing the measurement of the relative position of the front wheels to a critical threshold value, and, when the measurement of the relative position of the front wheels with respect to the ground reaches the critical threshold value, inhibiting a further tilting of the bucket and a further lowering of the at least one boom.

A system for controlling movement of multiple links of an excavator can move a tool at the end of an excavator arm. The system includes a sensor data interface configured to receive sensor data for determining relative orientations of the multiple links with respect to each other, and a surface setting unit configured to access design data defining a reference surface. The system has a remapping unit configured to remap a user command for moving two links with respect to each other about a corresponding joint to a rotatory tool degree of freedom. The system then coordinates output signals, such that as a function of the remapped user command the tool is rotated within the associated rotatory tool degree of freedom, without the need that an operator coordinates underlying joint movements.

An excavation vehicle capable of autonomously actuating an excavation tool or navigating an excavation vehicle to perform an excavation routine within an excavation site is described herein. Sensors mounted to the excavation vehicle and the excavation tool produce signals representative of a position and orientation of the corresponding joint relative on the excavation vehicle relative to the excavation site, a position and orientation of the excavation vehicle relative to the excavation site, and one or more features of the excavation site based on the position of the excavation vehicle within the excavation site. A set of solenoids are configured to couple to corresponding hydraulic valves of the excavation tool to actuate the valve. A controller produces actuating signals to control the joints of the excavation tool to autonomously perform the excavation routine based on the signals produced by the sensors.

A method of controlling a motor grader including a blade provided between a front wheel and a rear wheel which are attached to a vehicular body and a height adjustment mechanism which adjusts a height of the blade includes obtaining current topography in front of the motor grader and adjusting a height of the blade with respect to the front wheel based on the current topography.