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11 条记录 (耗时 0.013 秒)

    WORK MACHINE
    3.
    发明公开
    WORK MACHINE 审中-公开

    公开(公告)号：EP3412839A1

    公开(公告)日：2018-12-12

    申请号：EP17855412.7

    申请日：2017-07-28

    申请人： Hitachi Construction Machinery Co., Ltd

    发明人： ARIGA, Nobuei ,  KAMATA, Hiroyuki

    IPC分类号： E02F9/26 ,  E02F9/24

    CPC分类号： E02F9/00 ,  E02F9/24 ,  E02F9/26

    摘要： Provided are a plurality of cameras (96) mounted to an upper swing structure (12) so as to be capable of shooting in different directions, a video storage device (99) for storing videos taken by the plurality of cameras, a controller (40), and a hydraulic excavator (1). The controller has a camera selection section (40a) which when a lower track structure (11), the upper swing structure (12), or a work device (1A) makes an operation, selects a camera in accordance with the operation from among the plurality of cameras (96), and a storage control section (40b) which stores videos taken by the camera selected by the camera selection section (40a) during the operation of the lower track structure, the upper swing structure, or the work device in a video storage device (99).

    PUMP TORQUE CONTROL DEVICE FOR HYDRAULIC CONSTRUCTION MACHINE
    6.
    发明公开
    PUMP TORQUE CONTROL DEVICE FOR HYDRAULIC CONSTRUCTION MACHINE 审中-公开
    PU UNGÜR INE INE INE INE INE INE INE INE INE INE INE INE INE INE INE

    公开(公告)号：EP2112279A1

    公开(公告)日：2009-10-28

    申请号：EP08710646.4

    申请日：2008-01-30

    申请人： Hitachi Construction Machinery Co., Ltd

    发明人： ARIGA, Nobuei ,  ISHIKAWA, Kouji ,  KARASAWA, Hideo ,  OKANO, Yasuo ,  NAKAMURA, Kazunori ,  KOWATARI, Youichi

    IPC分类号： E02F9/22 ,  E02F9/20 ,  F04B49/06 ,  F15B11/00

    CPC分类号： F15B13/0422 ,  E02F9/2225 ,  E02F9/2235 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F04B17/05 ,  F04B49/08 ,  F15B11/17 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20553 ,  F15B2211/26 ,  F15B2211/2656 ,  F15B2211/3116 ,  F15B2211/31576 ,  F15B2211/329 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/6343 ,  F15B2211/6652 ,  F15B2211/6655 ,  F15B2211/7053 ,  F15B2211/7058

    摘要： A pump torque control system is capable of preventing from hunting due to interference between speed sensing control and control on an engine speed of a prime mover when the temperature of a hydraulic fluid is low, and performing appropriate pump torque control.
    A regulator 31 controls displacement volumes of hydraulic pumps 2 and 3 to ensure that the total absorption torque of the hydraulic pumps 2 and 3 does not exceed a set maximum absorption torque. An engine sensor 33, a hydraulic fluid temperature sensor 34, a solenoid proportional valve 35, and a controller 23 perform the speed sensing control to ensure that the maximum absorption torque of the hydraulic pumps 2 and 3 is reduced. The maximum absorption torque is set in the regulator 31 based on a deviation between a target engine speed of the prime mover 1 and an actual engine speed of the prime mover 1. A second modification factor calculating section 45 and a control gain modifying section 49, which are included in the controller 23, change a control gain of the speed sensing control based on a value detected by the hydraulic temperature sensor 34 to ensure that the control gain is reduced as the temperature of the hydraulic fluid is reduced.

    摘要翻译： 泵转矩控制系统能够防止在液压流体的温度低时对速动检测控制和原动机的发动机转速的控制之间的干扰进行回波，并且执行适当的泵转矩控制。 调节器31控制液压泵2和3的排量，以确保液压泵2和3的总吸收扭矩不超过设定的最大吸收扭矩。 发动机传感器33，液压油温度传感器34，电磁比例阀35和控制器23进行速度检测控制，以确保液压泵2和3的最大吸收转矩减小。 基于原动机1的目标发动机转速与原动机1的实际发动机转速之间的偏差，在调节器31中设定最大吸收转矩。第二变更系数计算部45和控制增益修正部49， 包括在控制器23中的控制增益基于由液压温度传感器34检测的值来改变速度检测控制的控制增益，以确保随着液压流体的温度降低控制增益而减小。

    CONSTRUCTION MACHINE
    10.
    发明公开
    CONSTRUCTION MACHINE 有权
    施工机械

    公开(公告)号：EP2233647A1

    公开(公告)日：2010-09-29

    申请号：EP08860222.2

    申请日：2008-12-08

    申请人： Hitachi Construction Machinery Co., Ltd

    发明人： ARIGA, Nobuei ,  TSUKADA, Hidenobu

    IPC分类号： E02F9/24 ,  B60R1/00

    CPC分类号： E02F9/261 ,  B60R1/00 ,  B60R2300/70 ,  B60R2300/8093 ,  E02F9/2062 ,  E02F9/2066 ,  E02F9/26

    摘要： [Problem] To provide a construction machine, which can surely perform confirmation of conditions around a machine body upon starting work and can start a prime mover even when obstruction exists around the machine body.
    [Solution] A picture display control means and an engine start delay means are provided. The control means includes a picture switch means 22 for switching a picture of a monitor 13 to a picture of peripheral image information, which is based on video signals from a monitor camera 12, based on an ON signal outputted from an engine key switch device 16. The delay means includes a storage unit 19 for storing beforehand a set time during which the picture of peripheral image information remains displayed from the output of the ON signal, a picture display time discrimination means 23 for discriminating whether or not a display time of the picture of peripheral image information displayed on the monitor 13 has reached the set time, and an engine start control means 21 for controlling an engine 8 to remain disabled to start based on the ON signal and controlling to enable starting of the engine 8 responsive to the results of discrimination by the picture display time discrimination means 23.

    摘要翻译： 本发明的目的在于提供一种即使在机体周边存在障碍物的情况下也能够可靠地进行机体周边的状态确认的建筑机械，并且能够使原动机起动。 解决方案提供图片显示控制装置和发动机启动延迟装置。 控制装置包括画面切换装置22，用于基于从发动机钥匙开关装置16输出的开启信号，将监视器13的画面切换为基于来自监视摄像机12的视频信号的外围图像信息的画面 延迟装置包括一个存储单元19，用于预先存储一个设定时间，在该设定时间期间从ON信号的输出中保持显示周边图像信息的图像;一个图像显示时间鉴别装置23，用于鉴别是否显示 显示在监视器13上的周边图像信息的图像已经达到设定时间，并且发动机启动控制装置21用于基于ON信号控制发动机8保持禁用以启动，并且响应于该启动信号控制启动发动机8 图像显示时间辨别装置23的辨别结果。