WORKING MACHINE
    1.
    发明公开
    WORKING MACHINE 审中-公开

    公开(公告)号:EP4512963A1

    公开(公告)日:2025-02-26

    申请号:EP24181914.3

    申请日:2024-06-13

    Abstract: A working machine (1) includes a working device (4); a hydraulic system (5) including an actuator (50a, 50b, 50c), and a hydraulic pump (51) to supply a hydraulic fluid (S) to the actuator (50a, 50b, 50c); an electric device (6a, 6b, 6c); a power generator (7) to generate electric power to be directly or indirectly supplied to the electric device (6a, 6b, 6c); a first cooling system (10) to cool the electric device (6a, 6b, 6c) with a first cooling medium (A); and a second cooling system (11) to cool the power generator (7) with a second cooling medium (B). The first cooling system (10) includes a first heat exchanger (100a) to cool the hydraulic fluid (S) through heat exchange with the first cooling medium (A), a second heat exchanger (100b) to cool the second cooling medium (B) through heat exchange with the first cooling medium (A), and a third heat exchanger (100c) to cool the first cooling medium (A) through heat exchange with outside air to a temperature lower than temperatures before the heat exchange of the hydraulic fluid (S) and the second cooling medium (B).

    WORK MACHINE
    2.
    发明公开
    WORK MACHINE 审中-公开

    公开(公告)号:EP4509658A1

    公开(公告)日:2025-02-19

    申请号:EP24191445.6

    申请日:2024-07-29

    Inventor: NOMURA, Kotaro

    Abstract: [Problem] A technique capable of appropriately disposing a wiring member in a work machine including a battery unit is provided.
    [Solution] An exemplary work machine is a work machine including a turning body in front of which a work device is disposed, the work machine including: a turning frame constituting a bottom portion of the turning body; a battery unit disposed on the turning frame; a first connection portion that inputs electric power to the battery unit or outputs electric power of the battery unit; a second connection portion that is disposed above the battery unit and distributes electric power; and a wiring member that passes below the battery unit and connects the first connection portion to the second connection portion.

    WORK MACHINE
    4.
    发明公开
    WORK MACHINE 审中-公开

    公开(公告)号:EP4506512A1

    公开(公告)日:2025-02-12

    申请号:EP23784722.3

    申请日:2023-04-03

    Abstract: Provided is a work machine capable of appropriately controlling a loading work onto a carrier machine by verifying validity of a recognition result of the carrier machine. A hydraulic excavator includes an external measuring device that measures a surrounding environment, an information processing device that recognizes a dump truck present around the hydraulic excavator based on a measurement result of the external measuring device, a control device that controls an operation of the hydraulic excavator based on a recognition result of the information processing device, and a truck information acquisition device that acquires a position and vehicle class information of the dump truck through external communication. The information processing device corrects the recognition result of the dump truck based on the information acquired by the truck information acquisition device. The control device controls the operation of the hydraulic excavator based on the corrected recognition result of the dump truck.

    SYSTEM FOR CONTROLLING CONSTRUCTION MACHINE, AND METHOD FOR CONTROLLING SAME

    公开(公告)号:EP4488454A1

    公开(公告)日:2025-01-08

    申请号:EP23763746.7

    申请日:2023-03-03

    Abstract: The present invention relates to a system for controlling a construction machine and a method for controlling the same, and the system comprising: a bucket control valve which controls the supply of hydraulic oil to a bucket cylinder provided to operate a bucket; a vehicle control unit which controls the bucket control valve by applying a current value to the bucket control valve; a pilot cutoff switch which controls the cutoff of pilot oil pressure controlling the driving or operation of a vehicle and transmits the cutoff to the vehicle control unit; and a bucket joystick which receives a signal from an operator and transmits the signal to the vehicle control unit.

    WHEELED CONSTRUCTION MACHINE
    8.
    发明公开

    公开(公告)号:EP4484654A1

    公开(公告)日:2025-01-01

    申请号:EP23778993.8

    申请日:2023-02-16

    Inventor: NARUO, Naoki

    Abstract: A controller of a wheeled hydraulic excavator executes control of a vibration suppression function to control the flow of a hydraulic fluid from a hydraulic cylinder that drives a work implement, thereby suppressing vibration of the hydraulic cylinder when the rotation speed of wheels reaches a predetermined speed or higher. Furthermore, the controller disables the control of the vibration suppression function when the vehicle body is jacked up by the work implement, even when a vibration suppression instructing device has given an instruction for enabling the control of the vibration suppression function.

    WORK MACHINE
    9.
    发明公开
    WORK MACHINE 审中-公开

    公开(公告)号:EP4481123A1

    公开(公告)日:2024-12-25

    申请号:EP23784605.0

    申请日:2023-03-15

    Applicant: Komatsu Ltd.

    Abstract: There is provided a work machine allowing a steering operation device to be enhanced in reliability. The steering operation device (42) includes a joystick (43), a first electric lever (60), and an input unit (110). The joystick (43) receives an operator's operation. The first electric lever (60) includes a first main body unit (61) and a first lever unit (62) tiltable with respect to the first main body unit (61), and outputs a tilt angle of the first lever unit (62) with respect to the first main body unit (61). The input unit (110) inputs an input to the first lever unit (62) of the first electric lever (60) to tilt the first lever unit (62) with respect to the first main body unit (61) of the first electric lever. The input unit (110) has an elongated hole (111) extending in the frontward/rearward direction. The first lever unit (62) is disposed in the elongated hole (111).

    KOMPAKTE MOBILE SAUGANLAGE
    10.
    发明公开

    公开(公告)号:EP4477806A1

    公开(公告)日:2024-12-18

    申请号:EP23178729.2

    申请日:2023-06-12

    Inventor: SUESS, Josef

    Abstract: Die Erfindung betrifft eine mobile Sauganlage (1) zum Ausheben von Sauggut unter Verwendung eines Saugvakuums, aufweisend einen Vakuumerzeuger (13) zum Erzeugen des Saugvakuums, einen Antrieb (19) zum Antreiben des Vakuumerzeugers (13), wobei der Antrieb (19) eine Antriebswelle (25) aufweist, und eine Vakuumerzeugerkupplung (41) zur selektiven Leistungsübertragung vom Antrieb (19) zum Vakuumerzeuger (13). Die Vakuumerzeugerkupplung (41) ist als Magnetkupplung (43) ausgebildet. Ferner betrifft die Erfindung ein System umfassend eine mobile Sauganlage (1) und einen Transportanhänger für die mobile Sauganlage (1), ein Verfahren (200) zum Steuern einer mobilen Sauganlage (1) sowie ein Computerprogrammprodukt.

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