A device for emergency supply of a high voltage onboard network, in particular for the emergency load lowering of a work machine such as a crane or a cable excavator, comprising a high voltage onboard network having an electrical drive unit and a primary DC energy source for supplying the electrical drive unit with energy; a low voltage onboard network, preferably a 12 V, 24 V, or 48 V onboard network, having a low voltage rechargeable battery for taking up and outputting energy, wherein the high voltage onboard network and the low voltage onboard network are connected via a DC/DC converter to allow an energy flow from the high voltage onboard network in the direction of the low voltage onboard network. The DC/DC converter is preferably a bidirectional DC/DC converter to permit an energy flow from the low voltage onboard network in the direction of the high voltage onboard network.

There is provided a system including a work machine, comprising a body of the work machine, a work implement attached to the body of the work machine, and a computer. The computer has a trained target posture estimation model to determine a target posture for the work implement to assume at work. The computer obtains a period of time elapsing since the work implement started to work, and mechanical data for operation of the body of the work machine and the work implement, uses the trained target posture estimation model to estimate a target posture from the elapsed period of time and the mechanical data, and thus outputs the estimated target posture.

A hose assembly for a hydraulic system is shown. The hose assembly includes a first hose that fluidly couples a pump with a hydraulic actuator using a first port. The first hose includes a first electronic device that provides identification information for the first hose. The hose assembly further includes a second hose that fluidly couples the hydraulic actuator with a reservoir tank using a second port. The second hose includes a second electronic device that provides identification information for the second hose. The hose assembly further includes a controller that receives a first connection signal and a second connection signal. The controller is further configured to determine that the first hose has fluidly coupled using the first port based on the first connection signal and determine that the second hose has fluidly coupled using the second port based on the second connection signal.

Provided are methods for controlling loading/unloading of a material (from a load-delivering unit to a load-receiving unit, wherein at least one of the load-delivering unit and the load-receiving unit is a working machine vehicle configured to transport a load of material from a first location to a second location, and wherein at least the load-delivering unit is provided with a control unit configured to control operation of the load-delivering unit. Methods include receiving a first signal indicative of the material associated with the load-delivering unit; receiving a second signal indicative of the material intended to be received by the load-receiving unit; and comparing material information related to the first signal with material information related to the second signal.

This disclosure relates to an implement, in particular crane or excavator, comprising a drive, a control unit, a measuring device and a memory. A component of the implement can be moved by means of the drive, wherein the drive can be actuated via the control unit. The measuring device can detect an actual variable relating to a movement of the driven component. In the memory, at least one characteristic curve for the actuation of the drive is stored. On the basis of a detected deviation, the control unit according to the disclosure can independently adjust the characteristic curve stored already or generate a new characteristic curve and store the same in the memory. The disclosure furthermore relates to a method of actuating a drive of such an implement.

An excavator includes a control valve configured to control hydraulic oil to be supplied to an actuator, based on pilot pressure; an electric operation device configured to output an operation signal; a gate lock device; a gate lock valve provided on a pilot line supplying the pilot pressure to the control valve, and configured to open or close according to a state of the gate lock device, so as to switch between a locked state and a released state; a proportional valve provided on the pilot line; and a control part configured to receive as input the operation signal, to control the proportional valve, wherein the control part determines, in a case where the gate lock valve is in the locked state by the gate lock device and an operation is performed on the electric operation device, the operation as an operational error.

A work machine includes: a work device; an operation device operating the work device; a first controller controlling operation of the work device on the basis of operation of the operation device; and a second controller determining that an auto idle condition is satisfied and performing auto idle control that decreases an engine revolution speed to an idle revolution speed in case the operation device is not operated for a predetermined time. The first controller diagnoses presence or absence of a failure in the first controller when supply of power to the first controller is started. The second controller performs power interruption control that interrupts the supply of the power to the first controller in case the auto idle condition is satisfied, and performs power supply control that starts the supply of the power to the first controller afterward.

Provided is an unmanned work machine capable of reliably coordinating with a manned work machine and smoothly executing work. An excavating machine 100 is an unmanned work machine capable of working in coordination with a hauling machine 200 that is a manned work machine. The excavating machine 100 includes sound collectors 31a and 31b that are a receiver receiving a notification regarding the operating status of the hauling machine 200 or an operating instruction to the excavating machine 100, which are transmitted from the hauling machine 200 in response to the operation by an operator aboard the hauling machine 200, and a controller 10 that controls the operation of the excavating machine 100 in accordance with the received notification.

A method of monitoring a component of a work machine includes establishing fault threshold range of the component including a range of values of electromagnetic radiation indicative of a potential failure of the component. A controller is configured for receiving data from an infrared sensor related to a current electromagnetic radiation value emitted from the component, and comparing the current electromagnetic radiation value to the fault threshold range of the component. The controller may automatically communicate a first control signal to a machine control device when the current electromagnetic radiation value is within the fault threshold range of the component. The first control signal may include a message warning of potential failure of the component, or may control a drive associated with the component to alter or stop operation of the component prior to failure.

A construction machine is provided, in which an electric application instruction detection section detects an electric application instruction of starting an electric application to an electronic device requiring operation confirmation prior to a start of an engine, a timer section measures elapsed time from a start of the electric application to the device, a battery control section executes control of starting the electric application to the device in response to detection of the instruction, an engine control section executes control of starting the engine in a case where a start manipulation is received before the elapsed time exceeds a first reference time set in advance, and a control device executes control of suppressing power consumption of a battery, when at least one power consumption suppression condition set in advance is satisfied after the electric application to the device is started and before the engine is started.