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1. 发明公开

EP4001519A1 WORK MACHINE 审中-实审
公开(公告)号：EP4001519A1
公开(公告)日：2022-05-25
申请号：EP20905541.7
申请日：2020-10-21
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： KUMAGAI, Kento , IMURA, Shinya , SUGIYAMA, Genroku , KODAKA, Katsuaki , TSURUGA, Yasutaka , CHIBA, Takaaki
IPC分类号： E02F9/22 , F16K31/383 , F15B11/042
摘要： There is provided a work machine which can improve accuracy of control of an actuator when a pressure difference between a hydraulic pump and the actuator is large and the demanded flow rate of the actuator is small.
An auxiliary flow rate controller is configured such that an opening area of a main valve changes between a maximum opening area and zero according to the opening area of a pilot variable restrictor when the opening area of the pilot variable restrictor is equal to or more than a predetermined opening area and that the opening area of the main valve is zero irrespective of the opening area of the pilot variable restrictor when the opening area of the pilot variable restrictor is less than the predetermined opening area.

2. 发明授权

EP1191156B1 SYSTEM FOR SUPPLYING FUEL TO CONSTRUCTION MACHINE 有权
标题翻译：系统用于将燃料供给的建筑机械
公开(公告)号：EP1191156B1
公开(公告)日：2014-05-07
申请号：EP01917742.7
申请日：2001-03-30
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： ADACHI, Hiroyuki , HIRATA, Toichi , SUGIYAMA, Genroku , WATANABE, Hiroshi , SHIBATA, Koichi , KOMATSU, Hideki
IPC分类号： E02F9/20 , G08C17/00 , G06Q50/06 , G08C17/02
CPC分类号： E02F9/20 , G06Q50/06 , G08C17/02

3. 发明授权

EP1403437B1 WORKING MACHINE FAILURE DIAGNOSIS METHOD AND SYSTEM 有权
标题翻译：故障诊断系统和故障诊断方法用于作业机械
公开(公告)号：EP1403437B1
公开(公告)日：2013-12-11
申请号：EP02722854.3
申请日：2002-04-26
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： OGURA, Hiroshi , WATANABE, Hiroshi , SUGIYAMA, Genroku , KARASAWA, Hideo , UMENO, Yoshiyuki , TOMIKAWA, Osamu , MIURA, Shuichi , ONO, Kiyoshi , OCHIAI, Yasushi , SHIBATA, Koichi , ADACHI, Hiroyuki
IPC分类号： E02F9/20 , E02F9/24 , H04Q9/00 , E02F9/26 , G05B23/02 , G05B19/4063 , G05B19/418
CPC分类号： G05B23/0267 , E02F9/205 , E02F9/24 , E02F9/26 , E02F9/268 , G05B19/4063 , G05B19/4185 , G05B2219/31454 , G05B2219/33284 , G05B2219/45012 , Y02P90/86

4. 发明授权

EP1655469B1 CONTROL DEVICE FOR WORKING VEHICLE 有权
公开(公告)号：EP1655469B1
公开(公告)日：2012-02-29
申请号：EP04771454.8
申请日：2004-08-10
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： NAKAMURA, Kazunori , NAKAMURA, Tsuyoshi , ITOGA, Kentaro , SUGIYAMA, Genroku
IPC分类号： F02D29/00 , F02D29/04 , F04B49/00 , E02F9/22
CPC分类号： E02F9/2296 , B60W10/04 , B60W10/06 , B60W10/103 , B60W10/30 , B60W30/1819 , B60W30/1882 , B60Y2200/415 , E02F9/2235 , E02F9/2246 , F02D29/02 , F02D2250/18 , F04B49/065 , F04B2203/0603 , F04B2203/0605 , F16H61/46 , F16H61/468
摘要： A control device for a working vehicle, capable of satisfying both a high work rate and reduced fuel consumption at the same time. A controller (10) has tables (10a, 10b, 10e, 10f) for determining maximum pump suction torque and engine output torque based on an engine speed and has selecting portions (10c, 10g) for switching the determined maximum pump suction torque and engine output torque depending on whether the vehicle is in a work rate mode or in a reduced fuel consumption mode. Pump suction torque characteristics for the reduced fuel consumption mode is set so that maximum pump suction torque (TB) is rather low in a high speed range, and engine output characteristics for the reduced fuel consumption mode is set so that engine output torque is rather low in the high speed range.

5. 发明公开

EP1630303A1 HYDRAULIC DRIVE DEVICE 失效
标题翻译：液压驱动装置
公开(公告)号：EP1630303A1
公开(公告)日：2006-03-01
申请号：EP04728031.8
申请日：2004-04-16
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： ISHIKAWA, Koji , KAJITA, Yusuke , NAKAMURA, Kazunori , SUGIYAMA, Genroku , KARASAWA, Hideo
IPC分类号： E02F9/22
CPC分类号： E02F9/2235 , E02F9/2285 , E02F9/2296
摘要： To permit using hold-side pressure oil in a first hydraulic cylinder for the acceleration of a second hydraulic cylinder upon performing a combined operation of the first and second hydraulic cylinders, a hydraulic drive system is provided with a main hydraulic pump 21, a boom cylinder 6 and an arm cylinder 7, a directional control valve 23 for a boom and a directional control valve 24 for an arm, and a boom control device 25 and an arm control device 26. The hydraulic drive system is also provided with a pressure oil feed means for feeding pressure oil in a rod chamber 6b of the boom cylinder 6 to an upstream side of the directional control valve 24 for the arm when a bottom pressure of the arm cylinder 7 has increased to a high pressure equal to or higher than a predetermined pressure. This pressure oil feed means includes a flow combiner valve 44 arranged in a reservoir line 42 which can communicate to the rod chamber 6b of the boom cylinder 6. When the bottom pressure of the arm cylinder 7 is the predetermined pressure or higher, the flow combiner valve 44 maintains a communication line 40, which communicates the reservoir line 42 and the upstream side of the directional control valve 24 for the arm with each other, in a state that pressure oil can be fed to the upstream side of the directional control valve 24 for the arm.
摘要翻译：为了在执行第一和第二液压缸的联合操作时允许在第一液压缸中使用保持侧压力油以加速第二液压缸，液压驱动系统设置有主液压泵21，动臂液压缸 6以及斗杆缸7，动臂用方向控制阀23和斗杆用方向控制阀24以及动臂控制装置25和斗杆控制装置26构成。液压驱动装置还具有压力油供给装置在斗杆油缸7的底部压力上升到规定值以上的高压时，将斗杆油缸6的活塞杆室6b内的压力油向斗杆用方向控制阀24的上游侧供给的单元压力。该压力油供给装置包括设置在能够与动臂油缸6的活塞杆室6b连通的储油管路42中的合流阀44.当臂油缸7的底部压力为预定压力或更高时，合流器阀44在将压力油供给到方向控制阀24的上游侧的状态下维持使储液器管线42与臂用方向控制阀24的上游侧连通的连通管线40 为胳膊。

6. 发明公开

EP1605168A1 OIL PRESSURE CIRCUIT FOR WORKING MACHINES 有权转让
标题翻译：油压控制电路机械
公开(公告)号：EP1605168A1
公开(公告)日：2005-12-14
申请号：EP04720712.1
申请日：2004-03-15
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： NAKAMURA, Tsuyoshi, c/o Hitachi Construction Machi , SUGIYAMA, Genroku , TOYOOKA, Tsukasa , ISHIKAWA, Koji
IPC分类号： F15B11/02 , E02F9/22
CPC分类号： E02F9/2242 , E02F9/2217 , E02F9/2228 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/024 , F15B11/17 , F15B21/087 , F15B2211/20546 , F15B2211/20576 , F15B2211/30525 , F15B2211/30565 , F15B2211/3058 , F15B2211/3116 , F15B2211/31576 , F15B2211/31582 , F15B2211/327 , F15B2211/6309 , F15B2211/6355 , F15B2211/6654 , F15B2211/7053 , F15B2211/7058 , F15B2211/7128 , F15B2211/7135 , F15B2211/7142 , F15B2211/75 , F15B2211/76
摘要： A joining directional control valve 13 is disposed to supply, to an arm cylinder 4, not only a hydraulic fluid delivered from a first hydraulic pump 1, but also a hydraulic fluid delivered from a second hydraulic pump 2 when an arm directional control valve 14 is driven. Respective delivery pressures of the hydraulic pumps 1, 2 are detected by pressure sensors 101, 102, and the opening area of a recovery control valve 6 is controlled depending on a lower one of the detected pressures from the pressure sensors 101, 102 such that, even in the combined operation of the arm cylinder 4 and another actuator 3, 4, the hydraulic fluid can be recovered for return to the arm cylinder 4 when the load pressure of the arm cylinder 4 is low. Thus, by supplying the hydraulic fluids from the two hydraulic pumps to the particular actuator for which the hydraulic fluid is to be recovered, a recovery flow rate is ensured when the load of the particular actuator is low in the combined operation.

7. 发明公开

EP1580675A1 RENTAL ESTIMATION METHOD 审中-公开
标题翻译：出租估值方法
公开(公告)号：EP1580675A1
公开(公告)日：2005-09-28
申请号：EP03811069.8
申请日：2003-11-05
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： SHIBATA, Koichi , WATANABE, Hiroshi , ADACHI, Hiroyuki , SUGIYAMA, Genroku , MIURA, Shuichi , ONO, Kiyoshi , KONDOU, Itsuo , KIMURA, Toshinori
IPC分类号： G06F17/60
CPC分类号： G06Q30/02 , G06Q30/0645
摘要： In a rental estimation method according to the present invention, rental information with regard to rental devices is provided to a customer through a data exchange between a terminal (9) of the customer and a management server (5) of a rental company. The rental estimation method includes a data input step for entering work content data indicating a work content through the customer terminal (9), and a necessary device reporting step for reading out a list of a plurality of necessary devices matching the work content and rental information corresponding to the necessary devices from a predefined database (2 to 4) and for providing them to the customer.

8. 发明公开

EP1414002A1 METHOD FOR LOCATING CONSTRUCION MACHINE, POSITION PLOTTING SYSTEM, AND CONSTRUCTION MACHINE 有权
标题翻译： VERFAHREN ZUR POSITIONSBESTIMMUNG EINER KONSTRUKTIONSMASCHINE，POSITIONSAUTRTRYSYSTEM UND KONSTRUKTIONSMASCHINE
公开(公告)号：EP1414002A1
公开(公告)日：2004-04-28
申请号：EP02746005.4
申请日：2002-07-12
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： ADACHI, Hiroyuki , SUGIYAMA, Genroku , SHIBAMORI, Kazuhiro , KOMATSU, Hideki , SHIBATA, Koichi , WATANABE, Hiroshi
IPC分类号： G08G1/13 , B60R25/10 , E02F9/24
CPC分类号： G08G1/207 , B60R25/00 , B60R25/102 , B60R25/33 , B60R2325/304 , E02F9/2045 , E02F9/205 , E02F9/26 , G08G1/20
摘要： Applied to a system comprised of a hydraulic excavator (1) provided with a main controller (41), a GPS device (23), and a communicator (42) and a management server (17). The hydraulic excavator (1) periodically measures its current location at predetermined time intervals by the GSP device (23) in an inoperative state where its engine key is in the off position and sends current location data and time data to the management server (17) by the main controller (41) and communicator (42). The management server (17) receives the periodically sent location data at its communicator (16a) and successively stores it in its memory (18). The management server (17) uses the current location data and the measurement time data to provide a location confirmation service by a location information provider. Due to this, when the hydraulic excavator (1) moves, the change in location can be confirmed on a map, the movement of the hydraulic excavator (1) can be tracked, and assistance can be given for confirmation of location and prevention of theft.
摘要翻译：由包括主控制器（41），GPS装置（23）和通信装置（42）的液压挖掘机（1）和管理服务器（17）组成的系统的应用。在发动机钥匙关闭的非操作时间期间，液压挖掘机使用GPS装置以预定的时间间隔定期确定当前位置，并且主控制器和通信装置将关于当前位置的数据和确定日期的数据传送到管理服务器。管理服务器接收与通信设备（16a）定期进入的位置数据，并将它们依次保存在其存储部分（18）中。管理服务器通过使用位置信息提供部分中的当前位置数据和确定日期数据来呈现位置准备。因此，当液压挖掘机移动时，在地图上识别位置变化以便跟踪液压挖掘机的运动，使得该操作可以用于定位和防盗。

9. 发明公开

EP1291253A1 SECURITY SYSTEM OF CONSTRUCTION MACHINERY 有权
标题翻译： 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
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： SHIBATA, Koichi , ONO, Kiyoshi , SUGIYAMA, Genroku , TOMIKAWA, Osamu , ADACHI, Hiroyuki , SARASAWA, Hideo , HIRATA, Toichi , WATANABE, Hiroshi
IPC分类号： B60R25/04 , E02F9/24
CPC分类号： E02F9/205 , B60R25/04 , B60R25/2018 , B60R2325/205 , B60R2325/308 , E02F9/24
摘要： 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.
摘要翻译：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。

10. 发明公开

EP1286057A1 HYDRAULIC CIRCUIT OF CONSTRUCTION MACHINERY 有权
标题翻译： HYDRAULIKKREISLAUFFÜRBAUMASCHINEN
公开(公告)号：EP1286057A1
公开(公告)日：2003-02-26
申请号：EP02700600.6
申请日：2002-02-18
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： ARIGA, Nobuei , SUGIYAMA, Genroku , TANAKA, Hideaki , TOYOOKA, Tsukasa , EGASHIRA, Masaki , OOKI, Takatoshi
IPC分类号： F15B11/02
CPC分类号： F15B11/17 , E02F9/2232 , E02F9/2235 , E02F9/2292 , E02F9/2296 , F04B23/06 , F04B49/08 , F15B11/165 , F15B2211/20553 , F15B2211/20584 , F15B2211/3052 , F15B2211/30525 , F15B2211/3059 , F15B2211/3116 , F15B2211/31576 , F15B2211/6054 , F15B2211/6055 , F15B2211/6309 , F15B2211/6343 , F15B2211/6656 , F15B2211/7051 , F15B2211/7058 , F15B2211/7135 , F15B2211/781
摘要： To keep one of three hydraulic pumps unaffected by variations in torque of the remaining hydraulic pumps when the three hydraulic pumps are used, displacements of the first and second hydraulic pumps are controlled based on their own delivery pressures P1,P2 and a pressure P3' obtained by reducing through a reducing valve 14 a delivery pressure P3 from the third hydraulic pump, while a displacement of the third hydraulic pump 3 is controlled only by its own delivery pressure P3. The pressure oil delivered from the third hydraulic pump 3, therefore, remains unaffected by variations in delivery flow rates from the first and second hydraulic pumps 1,2, in other words, by variations in their torque consumptions, so that the third hydraulic pump is assured to provide a stable flow rate.
摘要翻译：当使用三个液压泵时，为了保持三个液压泵中的一个不受剩余液压泵的扭矩变化的影响，基于其自身的输送压力P1，P2和获得的压力P3'来控制第一和第二液压泵的位移通过减压阀14减少来自第三液压泵的输送压力P3，而第三液压泵3的排量仅由其自身的输送压力P3控制。因此，从第三液压泵3输送的压力油不受来自第一和第二液压泵1,2的输送流量的变化的影响，换句话说，它们的扭矩消耗的变化，使得第三液压泵是保证提供稳定的流量。

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