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    PEDAL LOCK CONTROL DEVICE FOR WORKING VEHICLE
    3.
    发明公开
    PEDAL LOCK CONTROL DEVICE FOR WORKING VEHICLE 有权
    PEDALBLOCKIERUNGSSTEUERUNGFÜREIN NUTZFAHRZEUG

    公开(公告)号：EP2208630A1

    公开(公告)日：2010-07-21

    申请号：EP08835148.1

    申请日：2008-09-30

    申请人： Hitachi Construction Machinery Co., Ltd

    发明人： KODAKA, Katsuaki ,  SATAKE, Hidetoshi ,  KOWATARI, Youichi ,  GOTOU, Yuuki ,  ICHIMURA, Kazuhiro

    IPC分类号： B60K26/04 ,  B60K20/02 ,  E02F9/20

    CPC分类号： E02F9/2004 ,  G05G1/38 ,  G05G5/06

    摘要： A pedal lock control device for work vehicle includes: a motor driving device that drives a travel hydraulic motor in response to an operation amount of a travel pedal; a locking device that locks the travel pedal in a state of being operated; an instruction device that instructs lock and unlock of the travel pedal by the locking device upon an operation by an operator; a first detection device that detects a first signal change according to an unlock operation which is an operation that reflects an intention of an operator to release the locking device and is other than an unlock operation by the instruction device; a second detection device that detects a second signal change according to an unlock operation which is an operation that reflects an intention of an operator to release the locking device and is other than the unlock operation by the instruction device, with the second signal change being different from the first signal change; and a lock control device that unlocks the locking device when an unlock operation is detected by at least one of the first detection device and the second detection device in a state where the travel pedal is locked by the locking device.

    摘要翻译： 一种用于工作车辆的踏板锁定控制装置，包括：电动机驱动装置，其响应于行驶踏板的操作量驱动行驶液压马达; 锁定装置，其将行驶踏板锁定在操作状态; 指示装置，其在操作者操作时指示所述锁定装置对所述行驶踏板的锁定和解锁; 第一检测装置，其根据解锁操作检测第一信号变化，该解锁操作是反映操作者释放锁定装置的意图的操作，而不是指令装置的解锁操作; 第二检测装置，其根据解锁操作来检测第二信号变化，该解锁操作是反映操作者释放锁定装置的意图的操作，并且除了指令装置的解锁操作之外，第二信号变化是不同的 从第一个信号变化; 以及锁定控制装置，其在由所述锁定装置锁定所述行驶踏板的状态下，当所述第一检测装置和所述第二检测装置中的至少一个检测到解锁操作时，解锁所述锁定装置。

    SAFETY DEVICE FOR HYDRAULIC WORKING MACHINE
    4.
    发明公开
    SAFETY DEVICE FOR HYDRAULIC WORKING MACHINE 有权
    三菱液压机械有限公司

    公开(公告)号：EP2131045A1

    公开(公告)日：2009-12-09

    申请号：EP08712102.6

    申请日：2008-02-28

    申请人： Hitachi Construction Machinery Co., Ltd

    发明人： SATAKE, Hidetoshi ,  KODAKA, Katsuaki ,  GOTOU, Yuuki ,  NAGASHIMA, Yuuji ,  ICHIMURA, Kazuhiro

    IPC分类号： F15B20/00 ,  E02F9/20 ,  E02F9/24 ,  F15B11/08

    CPC分类号： E02F9/226 ,  E02F9/2285 ,  F15B20/002 ,  F15B20/008

    摘要： There are provided: control valves 22 - 24 that control flow of pressure oil from the hydraulic source 21 to the hydraulic actuators 15 - 17; electric lever devices 51 - 53 that output electrical operation signals v51 - v53 in correspondence to lever operation; electromagnetic proportional valves 25 - 30 through which control pressures for controlling the control valves 22-24 are output; a pressure calculating unit 50 that calculates control pressures P25 - P30 in correspondence to the operation signals V51 - v53; a control unit 50 that controls the electromagnetic proportional valves 25 - 30 so that control pressures to be output from the electromagnetic proportional valves 25 -30 become the control pressures P25 - P30 that have been calculated; a high-pressure selection circuit 41 - 44 that selects a higher pressure between control pressures that have been output from the electromagnetic proportional valves 25 - 30; pressure detectors 45 and 46 that detect a control pressure selected by the high-pressure selection circuit 41 - 44; an abnormality determination unit 50 that determines an abnormality in the electromagnetic proportional valves 25 - 30 based upon the control pressure detected by the pressure detectors 45 and 46 and the control pressure calculated by the pressure calculating unit; and an inhibiting device 47 and 48 that prohibits control of the control valves 22 - 24 when it is determined that an abnormality has occurred in the electromagnetic proportional valves 25 - 30.

    摘要翻译： 提供：控制阀22-24，其控制从液压源21到液压致动器15-17的压力油的流动; 电动杠杆装置51-53，其对应于杠杆操作输出电动操作信号v51-v53; 用于控制控制阀22-24的控制压力的电磁比例阀25-30; 压力计算单元50，其根据操作信号V51-v53计算控制压力P25-P30; 控制电磁比例阀25-30的控制单元50，使得从电磁比例阀25-30输出的控制压力成为计算出的控制压力P25〜P30; 选择从电磁比例阀25-30输出的控制压力之间的较高压力的高压选择电路41-44; 检测由高压选择电路41-44选择的控制压力的压力检测器45和46; 异常确定单元50，其基于由压力检测器45和46检测到的控制压力和由压力计算单元计算的控制压力来确定电磁比例阀25-30中的异常; 以及当确定电磁比例阀25-30中发生异常时禁止控制阀22-24的控制的禁止装置47和48。

    SAFETY DEVICE FOR HYDRAULIC WORKING MACHINE
    5.
    发明授权
    SAFETY DEVICE FOR HYDRAULIC WORKING MACHINE 有权

    公开(公告)号：EP2131045B1

    公开(公告)日：2018-07-04

    申请号：EP08712102.6

    申请日：2008-02-28

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： SATAKE, Hidetoshi ,  KODAKA, Katsuaki ,  GOTOU, Yuuki ,  NAGASHIMA, Yuuji ,  ICHIMURA, Kazuhiro

    IPC分类号： F15B20/00 ,  E02F9/22

    CPC分类号： E02F9/226 ,  E02F9/2285 ,  F15B20/002 ,  F15B20/008

    摘要： There are provided: control valves 22 - 24 that control flow of pressure oil from the hydraulic source 21 to the hydraulic actuators 15 - 17; electric lever devices 51 - 53 that output electrical operation signals v51 - v53 in correspondence to lever operation; electromagnetic proportional valves 25 - 30 through which control pressures for controlling the control valves 22-24 are output; a pressure calculating unit 50 that calculates control pressures P25 - P30 in correspondence to the operation signals V51 - v53; a control unit 50 that controls the electromagnetic proportional valves 25 - 30 so that control pressures to be output from the electromagnetic proportional valves 25 -30 become the control pressures P25 - P30 that have been calculated; a high-pressure selection circuit 41 - 44 that selects a higher pressure between control pressures that have been output from the electromagnetic proportional valves 25 - 30; pressure detectors 45 and 46 that detect a control pressure selected by the high-pressure selection circuit 41 - 44; an abnormality determination unit 50 that determines an abnormality in the electromagnetic proportional valves 25 - 30 based upon the control pressure detected by the pressure detectors 45 and 46 and the control pressure calculated by the pressure calculating unit; and an inhibiting device 47 and 48 that prohibits control of the control valves 22 - 24 when it is determined that an abnormality has occurred in the electromagnetic proportional valves 25 - 30.

    ENGINE SPEED CONTROL DEVICE FOR HYDRAULICALLY DRIVEN VEHICLE
    9.
    发明公开
    ENGINE SPEED CONTROL DEVICE FOR HYDRAULICALLY DRIVEN VEHICLE 有权
    Fahrzeug Kraftmaschinedrehzahlsteuervorrichtungfürein hydraulisch angetriebenes Fahrzeug

    公开(公告)号：EP2131027A1

    公开(公告)日：2009-12-09

    申请号：EP08712101.8

    申请日：2008-02-28

    申请人： Hitachi Construction Machinery Co., Ltd

    发明人： KODAKA, Katsuaki ,  SATAKE, Hidetoshi ,  KOWATARI, Youichi ,  GOTOU, Yuuki ,  ICHIMURA, Kazuhiro

    IPC分类号： F02D29/02 ,  E02F9/22 ,  F02D29/00

    CPC分类号： E02F9/2253 ,  B60W10/06 ,  B60W2520/10 ,  B60W2710/0644 ,  B60W2720/10 ,  E02F9/2066 ,  E02F9/2246 ,  E02F9/2285 ,  E02F9/2296 ,  F02D29/02 ,  F16H61/423 ,  F16H61/431 ,  F16H2059/6861 ,  F16H2059/6876

    摘要： A prime mover rotation speed control system for hydraulically driven vehicle includes: a hydraulic pump driven by a prime mover; a hydraulic motor for traveling driven with pressure oil supplied from the hydraulic pump; an operation member that outputs a travel command in accordance with an amount of operation by the operation member; a flow control device that controls one of a flow of the pressure oil from the hydraulic pump to the hydraulic motor and a flow rate of the pressure oil discharged from the hydraulic motor, based on the travel command that is output in accordance with the amount of operation by the operation member; a target rotation number outputting device that outputs a target rotation number of the prime mover based on a command; a rotation number control device that controls a rotation number of the prime mover to be the target rotation number; a vehicle speed detection device that detects a vehicle speed; and a vehicle speed calculation device that calculates a target vehicle speed in accordance with the amount of operation by the operation member. The rotation number control device includes a correction device that adjusts the target rotation number based on the vehicle speed detected by the vehicle speed detection device and the target vehicle speed calculated by the vehicle speed calculation device.

    摘要翻译： 用于液压驱动车辆的原动机转速控制系统包括：由原动机驱动的液压泵; 液压马达，用于从液压泵供给的压力油驱动; 操作构件，其根据操作构件的操作量输出行驶指令; 流量控制装置，控制从液压泵到液压马达的压力油的流量和从液压马达排出的压力油的流量的流量控制装置，该流量控制装置根据根据 由操作员操作; 目标转速输出装置，其基于指令输出原动机的目标转速; 旋转数控制装置，其将原动机的转数控制为目标转数; 检测车速的车速检测装置; 以及车速计算装置，其根据操作构件的操作量来计算目标车速。 旋转数控制装置包括校正装置，其基于由车速检测装置检测的车速和由车速计算装置计算出的目标车速来调整目标转速。

    WORK MACHINE DISPLAY SYSTEM
    10.
    发明公开
    WORK MACHINE DISPLAY SYSTEM 审中-公开
    FIGREINE ARBEITSMASCHINE

    公开(公告)号：EP2617903A1

    公开(公告)日：2013-07-24

    申请号：EP11825248.5

    申请日：2011-09-15

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： GOTOU, Yuuki ,  SHIBAMORI, Kazuhiro ,  NAKAMURA, Keiichiro ,  TSUKADA, Hidenobu ,  FUJIEDA, Kouta

    IPC分类号： E02F9/26 ,  B60R1/00 ,  H04N7/18

    CPC分类号： G09G5/373 ,  B60R1/00 ,  B60R2300/207 ,  B60R2300/302 ,  B60R2300/8026 ,  B60R2300/8093 ,  E02F9/24 ,  E02F9/26 ,  E02F9/261 ,  E02F9/267 ,  G08G1/16 ,  H04N1/0044 ,  H04N7/18

    摘要： Provided herein is a display system for a working machine capable of displaying warning information while also displaying a high-quality camera image. A display control device 53 redisplays a reduced camera image 33b2 at a reduction scale of 60% according to an abnormality information signal. An open area 44 occurs in part of a camera image area 42 outside the area displaying the camera image 33b2. The display control device 53 further displays a warning icon 34b (large size), corresponding to abnormality information regarding a filter of a DPF device 13, in the open area 44. The operator recognizing the warning icon 34b immediately stops the operation, moves the hydraulic shovel to a place where the filter regeneration is possible while checking the safety of the surroundings by viewing the camera image 33b2, and then carries out the filter regeneration. After finishing the regeneration, the operator confirms that the warning icon 34b has disappeared, moves the hydraulic shovel to the site of the operation while checking the safety of the surroundings by viewing a camera image 33a (for normal times), and then restarts the operation.

    摘要翻译： 本文提供了一种能够在显示高质量照相机图像的同时显示警告信息的工作机的显示系统。 显示控制装置53根据异常信息信号重新显示缩小的相机图像33b2，缩小比例为60％。 开放区域44出现在显示相机图像33b2的区域外的相机图像区域42的一部分。 显示控制装置53还在开放区域44中显示与DPF装置13的过滤器有关的异常信息相应的警告图标34b（大尺寸）。识别警告图标34b的操作者立即停止操作，使液压 在通过观察摄像机图像33b2来检查周围环境的安全性的同时将其铲到可能进行过滤器再生的地方，然后进行过滤器再生。 在完成再生之后，操作者确认警告图标34b已经消失，通过观察摄像机图像33a（正常时）检查周围环境的安全性，将液压挖掘机移动到操作现场，然后重新开始操作 。