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1. 发明授权

EP2354330B1 Engine controller for the hydraulic circuit of a construction machine 有权
标题翻译：驱动控制的建筑机械的液压回路
公开(公告)号：EP2354330B1
公开(公告)日：2014-11-19
申请号：EP11151101.0
申请日：2011-01-17
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Sato, Kensuke , Azuma, Hiroyuki , Nakamura, Tsuyoshi , Okano, Yasuo , Ishikawa, Kouji , Kanehama, Mitsuhiko
IPC分类号： E02F9/00 , E02F9/20 , E02F9/22 , F01N3/00 , F02D29/04
CPC分类号： E02F9/2246 , E02F9/2235

2. 发明公开

EP2354330A1 Engine controller for the hydraulic circuit of a construction machine 有权
标题翻译： Antriebssteuerungfürden Hydraulikreis einer Baumaschine
公开(公告)号：EP2354330A1
公开(公告)日：2011-08-10
申请号：EP11151101.0
申请日：2011-01-17
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Sato, Kensuke , Azuma, Hiroyuki , Nakamura, Tsuyoshi , Okano, Yasuo , Ishikawa, Kouji , Kanehama, Mitsuhiko
IPC分类号： E02F9/00 , E02F9/20 , E02F9/22 , F01N3/00 , F02D29/04
CPC分类号： E02F9/2246 , E02F9/2235
摘要： A hydraulic drive device for a construction machine (1) which can reliably judge whether or not the state of the construction machine is appropriate for stopping an engine is provided. The hydraulic drive device includes: a main pump (13); a regulator (15) that controls the discharge rate of the main pump (13) by a control pressure Pc; an engine (16) that drives the main pump (13); an engine stopping unit (83) that stops the engine (16) when a predetermined state of the construction machine has continued for a predetermined period of time; and a pressure sensor (72) that detects the control pressure Pc. The engine stopping unit (83) has a control signal judging unit (84) that judges whether or not the control pressure Pc detected by the pressure sensor (72) is lower than a predetermined pressure value Pc1, as a judgment of whether or not the predetermined state of the construction machine is present. The engine stopping unit (83) stops the engine (16) when a judgment result that the control pressure Pc is lower than the predetermined pressure value Pc1 is obtained. The predetermined pressure value Pc1 is a pressure value for controlling the discharge rate of the main pump (13) to the lower limit for use in the construction machine.
摘要翻译：提供一种可以可靠地判断建筑机械的状态是否适合停止发动机的建筑机械（1）的液压驱动装置。液压驱动装置包括：主泵（13）; 调节器（15），其通过控制压力Pc控制所述主泵（13）的排出速度; 驱动所述主泵（13）的发动机（16）。当建筑机械的预定状态持续预定时间时停止发动机（16）的发动机停止单元（83）以及检测控制压力Pc的压力传感器（72）。发动机停止单元（83）具有控制信号判断单元（84），判定由压力传感器（72）检测到的控制压力Pc是否低于预定压力值Pc1，作为判断是否存在施工机械的预定状态。当获得控制压力Pc低于预定压力值Pc1的判断结果时，发动机停止单元（83）停止发动机（16）。预定压力值Pc1是用于将主泵（13）的排出速度控制在用于建筑机械的下限的压力值。

3. 发明公开

EP2187012A3 Exhaust gas purification system for engineering machine 有权
标题翻译：施工排放控制系统
公开(公告)号：EP2187012A3
公开(公告)日：2011-05-04
申请号：EP09014009.6
申请日：2009-11-09
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Tsukada, Hidenobu , Ishikawa, Kouji , Arai, Yasushi , Kamiya, Shohei
IPC分类号： F01N9/00 , F01N3/025
CPC分类号： E02F9/0866 , E02F9/00 , F01N9/002 , Y02T10/47
摘要： An exhaust gas purification system for an engineering machine is provided which is capable of avoiding decreases in working efficiency during regeneration control by burning off a deposit of particulate matter from a filter (11) efficiently during a work pause time of the engineering machine. An operating section (17) of a display monitor (16) is assigned a function that sets a work pause time for a hydraulic excavator, and has a work pause switch (13) that notifies to a vehicle body control unit (21) that the hydraulic excavator has entered a work pause state. Upon receiving the notice of the fact that the hydraulic excavator has entered the work pause state, the vehicle body control unit (21) calculates the time required for a regenerating device to burn off the current amount of particulate matter deposited on the filter (11), and when the fact that the engineering machine has entered the work pause state is notified and the calculated time is longer than the preset work pause time, then activates a regeneration controller (4a) of an engine control unit (4), and switches a solenoid control valve (15) to a closed position during the preset work pause time.

4. 发明授权

EP0848113B1 Hydraulic circuit system for hydraulic working machine 失效
标题翻译：液压作业机械的液压回路
公开(公告)号：EP0848113B1
公开(公告)日：2003-04-02
申请号：EP97121344.2
申请日：1997-12-04
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Ishikawa, Kouji , Sugiyama, Genroku , Toyooka, Tsukasa , Nakamura, Tsuyoshi
IPC分类号： E02F9/22
CPC分类号： E02F9/2225 , E02F9/2232 , E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2296

5. 发明公开

EP0900889A3 Hydraulic circuit system for hydraulic working machine 有权
标题翻译：液压系统液压系统Arbeitsmaschine
公开(公告)号：EP0900889A3
公开(公告)日：1999-10-20
申请号：EP98116579.8
申请日：1998-09-02
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Toyooka, Tsukasa , Hirata, Toichi , Sugiyama, Genroku , Nakamura, Kazunori , Ishikawa, Kouji , Nakamura, Tsuyoshi
IPC分类号： E02F9/22
CPC分类号： E02F9/2267 , E02F9/2221 , E02F9/2232 , E02F9/2242 , E02F9/2271 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296
摘要： A hydraulic circuit system includes a shuttle block, and shuttle valves are arranged and connected within the shuttle block. The maximum in a predetermined operation signal pressure group selected from operation signal pressures generated by pilot operating units is selected to produce a control signal pressure within the shuttle block. The control signal pressure is output to control devices such as a track communicating valve, a swing brake cylinder, and regulators for hydraulic pumps.
摘要翻译：液压回路系统包括往复运动块（215），并且梭阀（216-220）布置并连接在往复运动块（215）内。从由先导操作单元（211,212,213）产生的操作信号压力中选择的预定操作信号压力组中的最大值被选择以产生梭块（215）内的控制信号压力。控制信号压力被输出到诸如轨道连通阀，回转制动缸和用于液压泵的调节器之类的控制装置。

6. 发明公开

EP0780522A1 Pump Torque control system 失效
标题翻译： Regelsystemfürdas Drehmoment einer Pumpe
公开(公告)号：EP0780522A1
公开(公告)日：1997-06-25
申请号：EP96203671.1
申请日：1996-12-23
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Konno, Shigetoshi , Yoshinaga, Shigehiro, Dorf-Kidokoro II 202 , Hirata, Toichi , Kowatari, Youichi , Sugiyama, Genroku , Ishikawa, Kouji
IPC分类号： E02F9/22
CPC分类号： E02F9/2246 , B60W2710/0644 , E02F9/2235 , E02F9/2296
摘要： An engine torque (T), which corresponds to a target engine speed (N) inputted in a controller (120), is determined by a functional computing function unit (121). A torque correction value is added to the engine torque, followed by the multiplication with a constant. The product is divided by a pump delivery pressure (P d ) to determine a pump displacement (q). A target tilting (θ 1 ) corresponding to this value (q) is determined by another functional computing function unit (125), and is then compared with another target tilting (θ 2 ) which has been determined from a negative control pressure. The smaller one is selected and is outputted as a target tilting (θ 13 ). The torque correction value is set at an EEPROM through an input device (15) as desired. Selection of a negative value as the torque correction value makes it possible to prevent occurrence of stalling.
摘要翻译：对应于输入到控制器（120）中的目标发动机转速（N）的发动机扭矩（T）由功能计算功能单元（121）确定。将扭矩校正值加到发动机转矩上，然后乘以常数。产品由泵输送压力（Pd）除以确定泵排量（q）。对应于该值（q）的目标倾斜（＆amp; t; 1）由另一个功能计算功能单元（125）确定，然后与从负控制压力确定的另一目标倾斜（＆amp; t; 2）进行比较。选择较小的一个，并作为目标倾斜（＆amp; thetas; 13）输出。扭矩校正值根据需要通过输入装置（15）设定在EEPROM。选择负值作为扭矩校正值使得可以防止停止的发生。

7. 发明公开

EP2503064A3 Hybrid construction machine 审中-公开
标题翻译：混合建筑机器
公开(公告)号：EP2503064A3
公开(公告)日：2017-08-02
申请号：EP12160621.4
申请日：2012-03-21
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Ooki, Takatoshi , Kajita, Yusuke , Satake, Hidetoshi , Ishida, Seiji , Izumi, Shiho , Ishikawa, Kouji , Okumura, Shinya , Edamura, Manabu
IPC分类号： E02F9/12 , E02F9/22 , E02F9/20
CPC分类号： E02F9/123 , E02F9/2095 , E02F9/2217 , E02F9/2296
摘要： Provided is a hybrid construction machine (driving the upper swing structure (20) using a hydraulic motor (27) and an electric motor (25) together) capable of regenerating the energy of the upper swing structure (20) in deceleration or stopping into electric power and using the regenerated electric power for assisting the hydraulic motor (27) for driving the upper swing structure (20), while also being capable of securing a satisfactory operational feeling equivalent to that in construction machines driving the upper swing structure (20) with the hydraulic motor (27) alone. Opening area characteristics of a meter-out restrictor (37MOa; 37MOc) and a bleed-off restrictor (37BO) of a swing directional control valve (37) are set so that their opening areas become larger than prescribed opening areas that are set to the construction machines driving the upper swing structure (20) with the hydraulic motor (37) alone. Torque of the electric motor (25) is controlled so that the total sum of actual torque (braking torque or acceleration torque) occurring in the hydraulic motor (27) and torque (braking torque or acceleration torque) of the electric motor (25) in deceleration or acceleration of the hydraulic motor (27) equals torque (braking torque or acceleration torque) occurring when the opening area of the meter-out restrictor (37MOa, 37MOc) or the bleed-off restrictor (37BO) is set at the prescribed opening area.
摘要翻译：本发明提供一种混合动力建筑机械（使用液压马达（27）和电动机（25）一起驱动上部回转体（20）），该回转体能够将上部回转体（20）的能量减速或停止为电动（20）驱动的液压电动机（27）的辅助动力，并且能够确保与在驱动上部回转体（20）的工程机械中相同的良好的操作感的同时，仅液压马达（27）。摆动方向控制阀（37）的出口节流限流器（37MOa; 37MOc）和泄放限流器（37BO）的开口面积特性设定为其开口面积大于规定的开口面积只用液压马达（37）驱动上部回转结构（20）的建筑机械。控制电动机（25）的转矩，使得在液压马达（27）中出现的实际转矩（制动转矩或加速转矩）和电动机（25）的转矩（制动转矩或加速转矩）的总和液压马达27的减速或加速度等于出口节流限流器37MOc或泄放限流器37BO的开口面积设定在规定开度时产生的转矩（制动转矩或加速转矩）区。

8. 发明授权

EP2187012B1 Exhaust gas purification system for engineering machine 有权
标题翻译：施工排放控制系统
公开(公告)号：EP2187012B1
公开(公告)日：2016-09-07
申请号：EP09014009.6
申请日：2009-11-09
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Tsukada, Hidenobu , Ishikawa, Kouji , Arai, Yasushi , Kamiya, Shohei
IPC分类号： F01N9/00 , F01N3/025
CPC分类号： E02F9/0866 , E02F9/00 , F01N9/002 , Y02T10/47

9. 发明公开

EP2514881A1 Hydraulic driving device for working machine 审中-公开
标题翻译： Hydraulische Antriebsvorrichtungfüreine Arbeitsmaschine
公开(公告)号：EP2514881A1
公开(公告)日：2012-10-24
申请号：EP12163564.3
申请日：2012-04-10
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Sato, Kensuke , Nakamura, Tsuyoshi , Ishikawa, Kouji , Okano, Yasuo
IPC分类号： E02F9/22 , F01N3/023 , F01N9/00 , F02D41/02
CPC分类号： E02F9/2282 , E02F9/2246 , E02F9/226 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F01N9/002 , F01N2560/08 , F01N2900/0416 , F02D41/0245 , F02D41/029 , Y02T10/26 , Y02T10/47
摘要： A hydraulic driving device for a working machine surely prevents behavior of a single rod double acting cylinder not intended by an operator when discharge pressure of a main pump is raised to raise exhaust gas temperature to temperature required for burning particulate matter. A selector valve (160) interposed between a spool valve (61) and a rod chamber of a single rod double acting cylinder (51) and a section (a filter regeneration time actuation valve (122), a vehicle body controller (150)) controlling the selector valve, are provided. A switch control section prevents a flow of oil directed from the rod chamber of the cylinder toward the spool valve by actuating the selector valve by a poppet of the selector valve when a by-pass cut valve (110) is controlled to increase a load of an engine (21) to a degree exhaust gas temperature reaches temperature required for burning particulate matter.
摘要翻译：用于工作机械的液压驱动装置可靠地防止在主泵的排出压力升高以提高废气温度达到燃烧颗粒物质所需的温度时，操作者不想要的单杆双作用缸的作用。插入在滑阀（61）和单杆双作用缸（51）的杆室和部分（过滤器再生时间致动阀（122），车身控制器）之间）的选择阀（160）控制选择阀。当旁路切断阀（110）被控制以增加负载时，开关控制部分通过由选择阀的提升阀致动选择阀来防止从缸体的杆室引导的油流向滑阀排气温度达到燃烧颗粒物质所需的温度的发动机（21）。

10. 发明公开

EP2503065A2 Hybrid construction machine 审中-公开
公开(公告)号：EP2503065A2
公开(公告)日：2012-09-26
申请号：EP12161030.7
申请日：2012-03-23
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Ooki, Takatoshi , Satake, Hidetoshi , Ishikawa, Kouji , Nishikawa, Shinji
IPC分类号： E02F9/12 , E02F9/22 , E02F9/20
CPC分类号： E02F9/2217 , B60K6/12 , B60K6/48 , B60W2300/17 , E02F9/123 , E02F9/2075 , E02F9/2095 , E02F9/2235 , E02F9/2296 , Y02T10/6208 , Y02T10/6221 , Y02T10/6282
摘要： Provided is a hybrid construction machine (driving the upper swing structure (20) using a hydraulic motor (27) and an electric motor (25) together) capable of regenerating the energy of the upper swing structure (20) in deceleration or stopping into electric power and using the regenerated electric power for assisting the driving of the upper swing structure (20), while also being capable of securing satisfactory operational feeling and operation capability even when the electric motor (25) does not operate. When the electric motor (25) is not driven, a controller (51) controls a hydraulic circuit system (40) (specifically, a swing direction/flow rate control valve (42), a center bypass cut valve and a regulator) so as to increase output torque of the hydraulic motor (27) by an amount corresponding to torque to be compensated for the non-driving of the electric motor (25) compared to cases where the electric motor (25) is driven.

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