Abstract: A heater is provided in the same flow path as that of a first heat exchanger that performs heat exchange between a heat medium and the fuel cell. The heater heats the heat medium by the electric energy stored in an electric storage device when the fuel cell is stopped and a temperature of the heat medium is lower than a predetermined threshold.

Abstract: A system is a system for supplying fuel of a fuel cell to a work vehicle on which the fuel cell is mounted, which includes the work vehicle, a carriage on which the fuel is mounted, and a supply pipe detachably provided between the work vehicle and the carriage and capable of supplying the fuel mounted on the carriage to the work vehicle. The work vehicle is supplied with the fuel mounted on the carriage by the supply pipe while traveling and towing the carriage.

Abstract: A management system of a work site includes a sprinkling data generation unit and an assignment unit. The sprinkling data generation unit is configured to generate sprinkling data indicating a sprinkling condition of a sprinkling vehicle at the work site. The assignment unit is configured to, when receiving a transport request of an operator, output a transport command for causing the sprinkling vehicle operating based on the sprinkling data to travel to a destination position.

Abstract: A hydraulic valve apparatus interposed between a hydraulic device and a hydraulic pump and controls supply of oil from the hydraulic pump to the hydraulic device by operating a spool provided in a valve body, in which the valve body includes two pump oil passages connected to separate hydraulic pumps via pump ports, and a plurality of linear motion spools separately provided corresponding to a plurality of linear motion hydraulic devices, the two pump oil passages are provided in the valve body to be arranged side by side along a same direction, the plurality of linear motion spools are connected to a portion located on one side of the pump port in the pump oil passages, and the two pump oil passages are connected to each other via a merging-separating oil passage including a merging-separating switching valve at an end portion located on one side of the pump port.

Abstract: A machinery compartment exterior covers a machinery compartment. A detector detects external information of a hydraulic excavator. The machinery compartment exterior includes a cover member extending in a frontward/rearward direction in an upper portion of the machinery compartment exterior. The detector includes a portion located on a side of the machinery compartment with respect to the cover member.

Abstract: A work vehicle equipped with a drive source using hydrogen as fuel includes a hydrogen tank configured to store the hydrogen, and a hydrogen discharge tube including a discharger configured to discharge an evaporated gas from the hydrogen tank, and the discharger discharges the evaporated gas to a space above the work vehicle.

Abstract: The present disclosure provides a nonaqueous lithium electricity storage element having high high-temperature cycle durability. The nonaqueous lithium electricity storage element comprises a positive electrode including a positive-electrode active material layer, a negative electrode, a separator, and a nonaqueous electrolytic solution containing lithium ions. The positive-electrode active material layer comprises a positive-electrode active material and an alkali-metal compound. The negative electrode includes a negative-electrode active material layer, the surface of which, when photographed in the state of being not exposed to the air with a scanning electron microscope at a magnification of 100 diameters, gives a secondary-electron image. Binarizing the pixels of the secondary-electron image by lightness gives an image in which a light region and a plurality of dark regions corresponding to deposits formed on the surface of the negative-electrode active material layer are present.

Abstract: A measurement value acquisition unit acquires measurement values from a plurality of sensors. A posture calculation unit calculates a posture of an attachment with respect to a vehicle body based on the measurement values. An operation signal acquisition unit acquires an operation signal from an operation device. An intervention control unit generates a control signal for the tilt rotator so that the posture of the attachment is held, based on the operation signal. An output unit outputs the generated control signal.

Abstract: A work implement (3) loads a load (300) into a vessel (301). A work implement actuator drives the work implement (3) with respect to a main body. An automation controller (100) commands the work implement actuator to drive, based on a detected value of the position of the work implement (3) and a detected value of the position of the vessel (301) with respect to a wheel loader (1). The automation controller (100) acquires information about a loading status of the load (310) in the vessel (301), determines whether it is necessary to move the load (310) in the vessel (301), based on the acquired information about the loading status of the load (310), and operates, when determining that it is necessary to move the load (310) in the vessel (301), the wheel loader (1) to move the load (310) toward the center (CL) of the vessel (301).

Abstract: An activation system for a work machine includes a presentation unit and an activation control unit. The work machine includes a power source and an additional function unit that realizes a predetermined additional function. The presentation unit presents a precaution related to the predetermined additional function. The activation control unit allows the power source to be activated after an operator confirms the precaution.

Abstract: A management system of a workplace includes: an expected time calculation unit that calculates an expected time at which an unmanned haul vehicle arrives at a work area; and a water-sprinkling condition decision unit that decides a water-sprinkling condition of an unmanned water-sprinkling vehicle in the work area based on the expected time.

Abstract: A control system for controlling a loading machine, which includes working equipment having a bucket, includes a controller. The controller calculates a traction force of the loading machine during excavation work of excavating an object to be excavated with the bucket. The controller calculates a load height representing a height of the object to be excavated inside the bucket during the excavation work. The controller calculates an earth pressure coefficient of the object to be excavated based on the traction force and the load height.

Abstract: A monitor control device selects any one of camera images captured by a camera system based on a steering angle of front wheels and outputs a signal for displaying the selected image on a display device.

Abstract: A work machine includes: a first travel operation valve 13; a second travel operation valve 14; a work equipment operation valve 15; a first pressure compensation valve of the first travel operation valve 13; a second pressure compensation valve of the second travel operation valve 14; a bypass flow path; a travel communication valve 26; a temperature sensor 27; and a control device 6 configured to adjust a stroke of the travel communication valve 26 based on detection data from the temperature sensor 27 in a state in which each of the first travel operation valve 13 and the second travel operation valve 14 is disposed at a neutral position.

Abstract: A hydraulic valve includes: a valve main body having a first port and a second port; and a spool movable along an axial center with respect to the valve main body. Further, the spool is provided with a main passage portion, a first passage portion, and a second passage portion, an opening area of the first passage portion with respect to the first port is changed, and flow rate control of oil from the first port to the second port through the main passage portion is performed, a plurality of the first passage portions is provided in the spool in, and the main passage portion of the spool has a first region, a second region, and a third region, an inner diameter of the first region being formed larger than that of the second region, and the third region being formed in a tapered shape.

Abstract: A work machine surroundings monitoring system includes a first display image generation unit that generates a first display image indicating surroundings of a work machine on the basis of a camera image of a camera that captures an image of the surroundings of the work machine, a second display image generation unit that generates a second display image in a display mode different from that of the first display image on the basis of camera images of a plurality of cameras that capture images of the surroundings of the work machine, and a display control unit that generates a signal for displaying the first display image on a part of a display screen, displaying the second display image on a part of the display screen, and displaying a boundary image at a boundary between the first display image and the second display image on the display screen.

Abstract: The movement amount estimation model that is a learning model learned to output a movement amount when vehicle body data is input is generated using, as a learning data set, at least the vehicle body data including a value related to the power of the traveling body of the work vehicle and the data indicating the movement amount of the work vehicle.

Abstract: This excavated matter conveyance system inside a driftway includes a first vehicle that is capable of traveling inside a driftway, a first conveyor that is supported by an upper portion of the first vehicle and is capable of conveying excavated matter in a first conveyance direction intersecting an upward-downward direction of the first vehicle, a second vehicle that is coupled to the first vehicle in a swingable manner, a second conveyor that is supported by an upper portion of the second vehicle and is capable of conveying the excavated matter in a second conveyance direction intersecting an upward-downward direction of the second vehicle, and movement apparatuses that are capable of relatively moving the first conveyor and the second conveyor.

Abstract: A control system for a work vehicle includes a first operation command unit that outputs a first operation command to operate a steering device of a work vehicle in a first steering direction, in a stopped state of the work vehicle, a state monitoring unit that monitors a state of the steering device, a restriction determination unit that determines whether to restrict operation of the steering device in the first steering direction, based on the state during output of the first operation command, and a restriction command unit that restricts the operation of the steering device in the first steering direction, based on the determination by the restriction determination unit.

Abstract: An exterior cover includes a left side panel and a right side panel opposite to each other in a left/right direction, a vent provided in left side panel, and a vent provided in right side panel. A battery is arranged between left side panel and right side panel, and supplies power to an electric motor. A hydraulic equipment is arranged forward of battery. A cooling device includes a cooling fan, and is arranged facing an area located between battery and hydraulic equipment in plan view in the left/right direction.