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    DOWNHILL SPEED CONTROLLER
    2.
    发明公开
    DOWNHILL SPEED CONTROLLER 有权
    GRAVITY速度控制

    公开(公告)号：EP1557331A4

    公开(公告)日：2005-12-21

    申请号：EP03809443

    申请日：2003-10-10

    申请人： HITACHI CONSTRUCTION MACHINERY

    发明人： WATANABE YUTAKA ,  WATANABE HIROSHI ,  TOKUDA YASUSHI

    IPC分类号： B60K31/04 ,  B60T7/12 ,  B60T8/24 ,  B60K31/00 ,  B60T7/18

    CPC分类号： B60T8/245 ,  B60K31/04 ,  B60T7/12 ,  B60T7/122 ,  B60T2201/04 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2550/142 ,  Y10T477/80 ,  Y10T477/816

    摘要： A downhill speed controller in which controllability of downhill and operability of target vehicle speed setting are enhanced by a system for presetting the target vehicle speed. A brake is controlled such that the actual vehicle speed coincides with a target downhill speed set by a switch capable of switching a plurality of preset speeds or capable of setting the target speed continuously. Control constants of PID operation are altered depending on the setting of a downhill inclination setting switch or a loadage setting switch. Furthermore, a brake amount is increased when an acceleration operated from the actual vehicle speed is higher than a target acceleration. Data set by a steering angle setting switch and a downhill inclination angle setting switch is held in a teaching data holding means in synchronism with distance information from the starting point of a downhill road. When the data is reproduced, it is read out in synchronism with distance information from the starting point of the downhill road and the brake is controlled such that the actual vehicle speed coincides with the target downhill speed.

    WORK MACHINE DISPLAY SYSTEM
    3.
    发明公开
    WORK MACHINE DISPLAY SYSTEM 有权
    显示系统的工程机械

    公开(公告)号：EP2623679A4

    公开(公告)日：2016-09-21

    申请号：EP11829244

    申请日：2011-09-29

    申请人： HITACHI CONSTRUCTION MACHINERY

    发明人： SHIBAMORI KAZUHIRO ,  WATANABE YUTAKA ,  TSUKADA HIDENOBU ,  NAKAMURA KEIICHIRO ,  GOTOU YUUKI ,  FUJIEDA KOUTA

    IPC分类号： E02F9/26

    CPC分类号： B60Q1/00 ,  E02F9/261 ,  E02F9/267 ,  G07C5/0825

    摘要： Disclosed is a display system for a working machine, adapted to display basic information at all times and to display, in case of an abnormality, details of a warning in addition to the basic information efficiently and in such a form as to enable an operator to reliably recognize details of the warning. A first warning display function 53b of a display controller 53, upon receiving an abnormality information signal relating to a charge warning, displays an appropriate warning icon 34a in a warning icon display region 42. A simplified basic-information display function 53e then displays simplified basic-information images 35 and 36, instead of basic-information images 31 and 32. This display consequently generates a free (unoccupied) area 44 within the basic information display region 41, the area 44 within the basic information display region 41 corresponding to an area other than an area in which the simplified basic-information images are displayed. A second warning display function 53f displays, in the free area 44, a second warning message 37 inclusive of a "Charge warning" message as display details of the warning icon 34a, and of character information relating to a simplified remedial action. The operator can reliably recognize the "Charge warning" and understand its details as well, by viewing the second warning message 37 in addition to the warning icon 34a.