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    SECURITY SYSTEM OF CONSTRUCTION MACHINERY
    2.
    发明公开
    SECURITY SYSTEM OF CONSTRUCTION MACHINERY 有权
    DIEBSTAHLSICHERUNGSSYSTEMFÜRBAUMASCHINEN

    公开(公告)号：EP1291253A1

    公开(公告)日：2003-03-12

    申请号：EP02713283.6

    申请日：2002-04-02

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： SHIBATA, Koichi ,  ONO, Kiyoshi ,  SUGIYAMA, Genroku ,  TOMIKAWA, Osamu ,  ADACHI, Hiroyuki ,  SARASAWA, Hideo ,  HIRATA, Toichi ,  WATANABE, Hiroshi

    IPC: B60R25/04 ,  E02F9/24

    CPC classification number: E02F9/205 ,  B60R25/04 ,  B60R25/2018 ,  B60R2325/205 ,  B60R2325/308 ,  E02F9/24

    Abstract: A security system for a construction machine including a construction machine equipped with a body controller for storing a first password, management apparatus arranged in a location apart from the construction machine and a portable communications unit for storing a second password provided communicably with the management apparatus and the body controller. The portable communications unit, receiving the first password from the management apparatus, replaces the second password with the first password. The body controller determines whether the second password output from the portable communications unit coincides with the first password. In case these passwords coincide with each other, an engine drive signal is output. Otherwise the engine is kept inoperable. This prevents possible theft of a construction machine.

    Abstract translation: 一种用于建筑机械的安全系统，包括装备有用于存储第一密码的主体控制器，布置在远离建筑机械的位置的管理装置的建筑机器和用于存储与管理装置可通信地提供的第二密码的便携式通信单元，以及 身体控制器。 从管理装置接收第一密码的便携式通信单元用第一密码替换第二密码。 身体控制器确定从便携式通信单元输出的第二密码是否与第一密码一致。 如果这些密码彼此一致，则输出发动机驱动信号。 否则发动机不能操作。 这防止了建筑机械的盗窃。

    CONSTRUCTION MACHINE MANAGING SYSTEM
    3.
    发明公开
    CONSTRUCTION MACHINE MANAGING SYSTEM 审中-公开
    VERWALTUNGSSYSTEM EINER BAUMASCHINE

    公开(公告)号：EP1273722A1

    公开(公告)日：2003-01-08

    申请号：EP01917748.4

    申请日：2001-03-30

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： ADACHI, Hiroyuki ,  HIRATA, Toichi ,  SUGIYAMA, Genroku ,  WATANABE, Hiroshi ,  SHIBATA, Koichi ,  KOMATSU, Hideki

    IPC: E02F9/20

    CPC classification number: G07C5/008 ,  E02F9/20 ,  G06Q10/06375 ,  G07C3/08

    Abstract: A construction machine management system includes a receiver provided at a remote location from a plurality of construction machines, which receives information related to the lengths of operating time of the construction machines individually transmitted from the construction machines and a decision-making device that makes a decision as to whether or not there is any over-operated construction machine based upon the operating time information that has been received.

    Abstract translation: 一种建筑机械管理系统，包括从多个施工机械的远程位置设置的接收器，其接收与从建筑机械单独发送的施工机械的运转时间长度相关的信息，以及作出决定的决策装置 关于是否存在基于已经接收的操作时间信息的过度操作的建筑机械。

    METHOD AND SYSTEM FOR MANAGING CONSTRUCTION MACHINE, AND ARITHMETIC PROCESSING APPARATUS
    5.
    发明公开
    METHOD AND SYSTEM FOR MANAGING CONSTRUCTION MACHINE, AND ARITHMETIC PROCESSING APPARATUS 有权
    VERFAHREN UND SYSTEM ZUM VERWALTEN EINER BAUMASCHINE

    公开(公告)号：EP1273718A1

    公开(公告)日：2003-01-08

    申请号：EP01917692.4

    申请日：2001-03-30

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： ADACHI, Hiroyuki ,  HIRATA, Toichi ,  SUGIYAMA, Genroku ,  WATANABE, Hiroshi ,  SHIBATA, Koichi ,  KOMATSU, Hideki ,  MIURA, Shuichi ,  MITSUYA, Koji ,  SAITO, Yoshiaki ,  SATO, Atsushi

    IPC: E02F9/00 ,  E02F9/20 ,  G05B23/02 ,  G07C3/02

    CPC classification number: G07C5/008 ,  E02F9/205 ,  E02F9/2225 ,  E02F9/2239 ,  E02F9/226 ,  E02F9/2292 ,  E02F9/2296 ,  E02F9/26 ,  E02F9/267 ,  G05B23/0283 ,  G05B2219/24001 ,  G05B2219/24055

    Abstract: A working time for each of an engine 32, a front 15, a swing body 13, and a travel body 12 of a hydraulic excavator 1 working in fields is measured. Measured data is stored in a memory of a controller 2 and then transferred to a base station computer 3 via satellite communication, an FD, etc. to be stored in a database 100. At each repair/replacement of a part in each hydraulic excavator, the base station computer 3 calculates, based on the operation data, a replacement time interval of the part on the basis of the working time per section to which the part belongs, and then stores and accumulates it. The base station computer also reads the stored data for each hydraulic excavator, determines, for each part, a replacement rate of the part having the substantially equal replacement time interval, and calculates a target replacement time interval of the part in accordance with the replacement time interval corresponding to a maximum replacement rate. Thus, the appropriate target replacement time interval can be decided and the appropriate scheduled replacement timing can be determined even for parts belong to a plurality of sections that differ in working time from each other.

    Abstract translation: 测量在田间工作的液压挖掘机1的发动机32，前15，摆动体13和行驶体12的工作时间。 测量数据存储在控制器2的存储器中，然后通过卫星通信，FD等传送到基站计算机3以存储在数据库100中。在每个液压挖掘机中的每个维修/更换零件时， 基站计算机3基于操作数据，根据部件所属的每个部分的工作时间来计算部件的更换时间间隔，然后存储和累加。 基站计算机还读取每个液压挖掘机的存储数据，为每个零件确定具有基本上相等的更换时间间隔的零件的替换率，并根据更换时间计算零件的目标更换时间间隔 间隔对应于最大替换率。 因此，可以确定适当的目标更换时间间隔，并且即使对于属于彼此不同工作时间的多个部分的部分，也可以确定适当的计划更换定时。

    HYDRAULIC SYSTEM
    9.
    发明公开
    HYDRAULIC SYSTEM 失效
    液压系统

    公开(公告)号：EP0791754A1

    公开(公告)日：1997-08-27

    申请号：EP96930425.2

    申请日：1996-09-17

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： HIRATA, Toichi ,  SUGIYAMA, Genroku ,  TOYOOKA, Tsukasa

    IPC: F15B11/17 ,  F15B11/00 ,  E02F9/22

    CPC classification number: E02F9/2242 ,  E02F9/2292 ,  E02F9/2296

    Abstract: Pump ports 9p, 10p, 11p, 13p of boom, arm, bucket and first travel directional control valves 9 - 11, 13 are connected to first and second hydraulic pumps 1a, 1b through feeder lines 93a, 93b; 103a, 103b; 113a, 113b; 133a, 133b. Auxiliary valves 91a, 91b; 101a, 101b; 111a, 111b; 131a, 131b controlled respectively by proportional solenoid valves 31a, 31b; 32a, 32b; 33a, 33b; 34a, 34b are disposed in those feeder lines. The auxiliary valves each have a function as a reverse-flow preventing function and a variable resisting function including a flow cutoff function, whereby a joining circuit and a preference circuit can be realized in the closed center circuit with a simple structure and further, a preference degree and metering characteristics can be set independently of each other during the combined operation of plural actuators.

    HYDRAULIC CONTROLLER
    10.
    发明公开
    HYDRAULIC CONTROLLER 失效
    Hydraulische Steuerung

    公开(公告)号：EP0773370A1

    公开(公告)日：1997-05-14

    申请号：EP96904303.3

    申请日：1996-03-01

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： SUGIYAMA, Genroku ,  HIRATA, Toichi

    IPC: F15B20/00

    CPC classification number: F15B21/045 ,  F04B49/065 ,  F04B49/08 ,  F04B49/10 ,  F04B2205/05 ,  F04B2205/062 ,  F04B2205/11 ,  F15B20/002

    Abstract: In a hydraulic controller, in order to easily provide a hydraulic back-up in the event of a failure of an electric system while maintaining a benefit of electrical control using a control unit (13) when controlling a displacement of a hydraulic pump (1) in accordance with a property of a hydraulic driving system, a pump regulator (16) is constructed such that the tilt θ of a swash plate (1a) increases as the pressure of a second oil pressure signal P.c decreases, the pump regulator is characterized in that a negative control pressure can be used instead of the second oil pressure signal, and the properties of a fixed throttle (10) and the pump regulator spring (18d) are set such that the pump regulator can be operated within an operation range of the negative control pressure. In a controlling unit (13), a negative control pressure Pc1 corrected in a block (102) is made to be a target value of the second oil pressure signal, a second electric signal E corresponding to the target value is obtained, and the operational range of a second oil pressure signal generated by a solenoid proportional valve (15) is made substantially equal to the negative control pressure.

    Abstract translation: 在液压控制器中，为了在控制液压泵（1）的位移时使用控制单元（13）保持电气控制的好处，在电气系统故障的情况下容易地提供液压备用， 根据液压驱动系统的性质，泵调节器（16）构造成使得倾斜和倾斜; 斜盘（1a）的压力随着第二油压信号Pc的压力减小而增加，该泵调节器的特征在于可以使用负控制压力代替第二油压信号，以及固定节流阀 10）和泵调节器弹簧（18d）被设置为使得泵调节器可以在负控制压力的操作范围内操作。 在控制单元（13）中，将在块（102）中校正的负控制压力Pc1设定为第二油压信号的目标值，获得与目标值对应的第二电信号E， 由电磁比例阀（15）产生的第二油压信号的范围基本上等于负控制压力。

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