A controller may receive, from a sensor device of a machine, machine drivetrain data indicating a load, on a drivetrain of the machine, over a period of time. The controller may detect, based on the machine drivetrain data, one or more occurrences of a decrease in the load during the period of time. The controller may determine that the one or more occurrences, of the decrease in the load, are unexpected. The controller may detect wear of a component of an undercarriage of the machine based on determining that the one or more occurrences, of the decrease in the load, are unexpected. The controller may cause an action to be performed based on determining the wear of the component.

A device that measures fluid level in fuel storage tanks of mining trucks resistant to rapid filling includes an externally mounted sensor, a protective metallic tube, an anchorage system, and a pressure dissipator; and a remote monitor system that controls fluid level in fuel storage tanks of mining trucks includes a device that measures fluid level in fuel storage tanks of mining trucks including an externally mounted sensor, a protective metallic tube, an anchorage system and pressure dissipator, antennas, a Web server, remote means, and a power source.

A work machine including a prime mover, an electric motor, an electric motor fluid circuit, a transmission fluid circuit, a hydraulic circuit, a cooling circuit, a pump, and a controller. The electric motor may supply a portion of power of the prime mover. The electric motor fluid circuit may be adapted to remove waste heat from the electric motor. The transmission fluid circuit may be adapted to lubricate a moving part of a transmission powered by the prime mover. The hydraulic circuit may be adapted to transmit power from the prime mover to a moving component of the work machine. The cooling circuit may be absorbing waste heat from one or more of the electric motor fluid circuit, the transmission fluid circuit, and the hydraulic circuit. The control may be adapted to control diversion of a portion of waste heat from the cooling circuit to a portion of the cab.

A construction machine includes an image capturing device configured to capture an image of the surroundings, an image display part mounted in an operator's cab and configured to display a menu screen showing an operating condition and various settings, or the captured image captured with the image capturing device, an operation part including a menu switch to cause the menu screen to be displayed on the image display part, and a detector configured to detect whether a work element is enabled or disabled. The image display part is configured to display a warning in response to the menu switch being operated while the work element is enabled.

A transmission assembly for a work vehicle having an engine includes a variator operably connected to the engine, a gear arrangement configured to provide a selective gear reduction for transmission of output power from the variator to an output shaft, and an electrical machine unit. The electrical machine unit further includes a main shaft operably connected to the variator, a first rotor configured to rotatably drive a first shaft, a second rotor configured to rotatably drive a second shaft, and a clutch configured to selectively couple the first shaft or the second shaft, or both the first shaft and the second shaft, to the main shaft. The clutch, the first rotor, and the second rotor are operable to control a speed and rotational direction of the main shaft in providing rotational power to the variator.

A fuel level measurement system and method for liquified natural gas (LNG) powered machines is disclosed. An engine control module (ECM) receives fuel line pressure levels at a first time (e.g., a key-off event) and, again, at a second time (e.g., a key-on event). The ECM predicts an expected change in pressure from the key-off event to the key-on event based on various factors. If the change in pressure detected is greater than a threshold level different from the predicted change in pressure, the ECM determines a fill event and resets a current fuel level. The ECM tracks mass flow commands used to provide fuel to the engine to determine the consumption of fuel from the fuel tank and to determine a new current fuel level based on the amount of fuel consumed. The current fuel level is displayed on a fuel gauge.

Provided is a construction machine including an exhaust-gas after-treatment device and capable of supporting the exhaust-gas after-treatment device in a limited space. The construction machine includes an upper frame, an engine mounted on the upper frame via a plurality of engine mounts, a hydraulic pump coupled to the engine, the exhaust-gas after-treatment device, and a support cradle supporting the exhaust-gas after-treatment device over the hydraulic pump. The upper frame includes a plurality of mount support portions and a leg support portion. The support cradle includes a support stage on which the exhaust-gas after-treatment device is mounted, and a plurality of legs. The plurality of mount support portions include a space-defining mount support portion defining a horizontal space against the hydraulic pump. The plurality of legs include an in-space leg extending in the space. The leg support portion is located to overlap the space in a plan view.

In a power control device, when the necessary power is greater than an upper limit value and either the integral power value or the duration time of an assist provided by an electric storage device during a continuous assist by the electric storage device exceeds a predetermined first threshold value, a controller performs a first control of reducing an assist power by the electric storage device to a value smaller than an assist power for the regular control and greater than zero. Further, when the necessary power is greater than the upper limit value and either the integral power value or the duration time exceeds a predetermined second threshold value greater than the first threshold value, the controller performs a second control of setting the assist power to zero.

Provided is hybrid construction machine that can charge/discharge an electrical storage device appropriately and can suppress stop of an engine accompanying sharp increase of a load. The present invention includes a hybrid controller 22 that controls power of a hydraulic pump 17 and electric power of an inverter 15 in response to storage battery characteristics of the electrical storage device 16, and an output command unit 22F of the hybrid controller 22 is configured to control at least either one of the power of the hydraulic pump 17 and the electric power of the inverter 15 on the basis of at least either one of electric current or voltage of the storage battery characteristics and at least either one of temperature or a state of charge of the storage battery characteristics.

A work vehicle of the invention includes: a pair of right and left front wheels disposed in a front part of the vehicle body; a pair of right and left rear wheels disposed in a rear part of the vehicle body; a side wall disposed at an outer end part of one side in a right-left direction of the vehicle body; and a radiator disposed between the front wheels and the rear wheels in a side view and on an inner side relative to the side wall in a plane view, wherein the radiator is disposed with an air-suction surface thereof facing toward the side wall to form an air-suction opening in a bottom part of a space between the air-suction surface and an inner surface of the side wall, and wherein a dust-proof body protruding downward to a lower level than a level of a lower end of the vehicle body is disposed on at least one of: a front side of the air-suction opening and a rear side of the front wheels; and a rear side of the air-suction opening and a front side of the rear wheels.