JP2013068257A - 油圧制御装置及び油圧制御方法 - Google Patents
油圧制御装置及び油圧制御方法 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
- F15B1/033—Installations or systems with accumulators having accumulator charging devices with electrical control means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
- E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
- E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2296—Systems with a variable displacement pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/526—Pressure control characterised by the type of actuation electrically or electronically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6346—Electronic controllers using input signals representing a state of input means, e.g. joystick position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6652—Control of the pressure source, e.g. control of the swash plate angle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
- Y10T137/85986—Pumped fluid control
- Y10T137/86027—Electric
Abstract
【解決手段】本発明は、油圧アクチュエータがクローズドセンター型の方向切換弁を介して油圧ポンプに接続されると共に、方向切換弁と油圧ポンプの間に、タンクに繋がるアンロード弁が設けられる建設機械において、アンロード弁制御手段と、油圧ポンプを制御する油圧制御装置であって、方向切換弁における油圧アクチュエータへの流路が開かれた状況下で、方向切換弁の位置を可変するための操作部材の操作量と、油圧ポンプの吐出圧とに基づいて、ネガコンシステムを仮想した場合の仮想ネガコン圧を算出し、仮想ネガコン圧に基づいて、油圧ポンプに対する制御指令値を算出する指令値算出手段と、方向切換弁における油圧アクチュエータへの流路が閉じられた状況下で、油圧ポンプの吐出流量が所定流量となるように、指令値又は該制御指令値の算出に使用される任意のパラメータを補正する補正手段とを備える。
【選択図】図9
Description
前記方向切換弁における前記油圧アクチュエータへの流路が開かれた状況下で、前記油圧ポンプと前記タンクとの間の連通が遮断され、且つ、前記方向切換弁における前記油圧アクチュエータへの流路が閉じられた状況下で、前記油圧ポンプと前記タンクとの間の連通が確立されるように、前記アンロード弁を制御するアンロード弁制御手段と、
前記方向切換弁における前記油圧アクチュエータへの流路が開かれた状況下で、前記方向切換弁の位置を可変するための操作部材の操作量と、前記油圧ポンプの吐出圧とに基づいて、ネガコンシステムを仮想した場合の仮想ネガコン圧を算出し、前記仮想ネガコン圧に基づいて、前記油圧ポンプに対する制御指令値を算出する指令値算出手段と、
前記方向切換弁における前記油圧アクチュエータへの流路が閉じられた状況下で、前記油圧ポンプの吐出流量が所定流量となるように、前記制御指令値又は該制御指令値の算出に使用される任意のパラメータを補正する補正手段とを備える、油圧制御装置が提供される。
2 下部走行体
3 上部旋回体
4 ブーム
5 アーム
6 バケット
7 ブームシリンダ
8 アームシリンダ
9 バケットシリンダ
10 コントローラ
11 油圧ポンプ
12 レギュレータ装置
13 供給ライン
14 戻りライン
17 原動機
18 アンロード弁
19 リリーフ弁
20 方向切換弁
21a、21b リリーフ弁
22 方向切換弁
23a、23b リリーフ弁
24 方向切換弁
25a、25b リリーフ弁
30 油圧センサ
40、42、43 操作部材
60 油圧制御システム
100 センターバイパスライン
104 ネガコン絞り
Claims (3)
- 油圧アクチュエータがクローズドセンター型の方向切換弁を介して油圧ポンプに接続されると共に、前記方向切換弁と前記油圧ポンプの間に、タンクに繋がるアンロード弁が設けられる建設機械において、前記油圧ポンプを制御する油圧制御装置であって、
前記方向切換弁における前記油圧アクチュエータへの流路が開かれた状況下で、前記油圧ポンプと前記タンクとの間の連通が遮断され、且つ、前記方向切換弁における前記油圧アクチュエータへの流路が閉じられた状況下で、前記油圧ポンプと前記タンクとの間の連通が確立されるように、前記アンロード弁を制御するアンロード弁制御手段と、
前記方向切換弁における前記油圧アクチュエータへの流路が開かれた状況下で、前記方向切換弁の位置を可変するための操作部材の操作量と、前記油圧ポンプの吐出圧とに基づいて、ネガコンシステムを仮想した場合の仮想ネガコン圧を算出し、前記仮想ネガコン圧に基づいて、前記油圧ポンプに対する制御指令値を算出する指令値算出手段と、
前記方向切換弁における前記油圧アクチュエータへの流路が閉じられた状況下で、前記油圧ポンプの吐出流量が所定流量となるように、前記制御指令値又は該制御指令値の算出に使用される任意のパラメータを補正する補正手段とを備える、油圧制御装置。 - 前記所定流量は、前記油圧ポンプの最小吐出流量に対応する、請求項1に記載の油圧制御装置。
- 油圧アクチュエータがクローズドセンター型の方向切換弁を介して油圧ポンプに接続されると共に、前記方向切換弁と前記油圧ポンプの間に、タンクに繋がるアンロード弁が設けられる建設機械において、前記油圧ポンプを制御する油圧制御方法であって、
前記方向切換弁における前記油圧アクチュエータへの流路が開かれた状況下で、前記油圧ポンプと前記タンクとの間の連通が遮断されるように、前記アンロード弁を制御すると共に、前記方向切換弁の位置を可変するための操作部材の操作量と、前記油圧ポンプの吐出圧とに基づいて、ネガコンシステムを仮想した場合の仮想ネガコン圧を算出し、前記仮想ネガコン圧に基づいて、前記油圧ポンプに対する制御指令値を算出するステップと、
前記方向切換弁における前記油圧アクチュエータへの流路が閉じられた状況下で、前記油圧ポンプと前記タンクとの間の連通が確立されるように前記アンロード弁を制御すると共に、前記油圧ポンプの吐出流量が所定流量となるように、前記油圧ポンプに対する制御指令値を算出するステップとを含むことを特徴とする、油圧制御方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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JP2011206443A JP5631830B2 (ja) | 2011-09-21 | 2011-09-21 | 油圧制御装置及び油圧制御方法 |
PCT/JP2012/070356 WO2013042483A1 (ja) | 2011-09-21 | 2012-08-09 | 油圧制御装置及び油圧制御方法 |
KR1020147005343A KR101592483B1 (ko) | 2011-09-21 | 2012-08-09 | 유압제어장치 및 유압제어방법 |
EP12833906.6A EP2759712A4 (en) | 2011-09-21 | 2012-08-09 | HYDRAULIC ADJUSTMENT DEVICE AND HYDRAULIC ADJUSTMENT METHOD |
CN201280040917.3A CN103748364B (zh) | 2011-09-21 | 2012-08-09 | 液压控制装置及液压控制方法 |
US14/217,721 US9651061B2 (en) | 2011-09-21 | 2014-03-18 | Hydraulic control apparatus and method |
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JP2011206443A JP5631830B2 (ja) | 2011-09-21 | 2011-09-21 | 油圧制御装置及び油圧制御方法 |
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EP (1) | EP2759712A4 (ja) |
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JP6209439B2 (ja) * | 2013-12-19 | 2017-10-04 | ナブテスコ株式会社 | 建設機械用方向切換弁、並びに、その開度決定装置、及びその開度決定方法 |
JP6493916B2 (ja) * | 2015-04-21 | 2019-04-03 | キャタピラー エス エー アール エル | 流体圧回路および作業機械 |
US9976285B2 (en) * | 2016-07-27 | 2018-05-22 | Caterpillar Trimble Control Technologies Llc | Excavating implement heading control |
JP6845736B2 (ja) * | 2017-04-28 | 2021-03-24 | 川崎重工業株式会社 | 液圧駆動システム |
JP6860519B2 (ja) * | 2018-03-26 | 2021-04-14 | 株式会社日立建機ティエラ | 建設機械 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60245804A (ja) * | 1984-05-19 | 1985-12-05 | Kayaba Ind Co Ltd | 可変容量ポンプの制御回路 |
JPH04258504A (ja) * | 1991-02-07 | 1992-09-14 | Sumitomo Constr Mach Co Ltd | 建設機械の油圧駆動装置 |
JPH0742709A (ja) * | 1993-08-02 | 1995-02-10 | Yutani Heavy Ind Ltd | 油圧機械のアクチュエータ制御装置 |
JPH09236101A (ja) * | 1996-02-29 | 1997-09-09 | Komatsu Ltd | 油圧駆動機械の制御装置 |
JPH11303809A (ja) * | 1998-04-20 | 1999-11-02 | Komatsu Ltd | 油圧駆動機械のポンプ制御装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920010875B1 (ko) * | 1988-06-29 | 1992-12-19 | 히다찌 겐끼 가부시기가이샤 | 유압구동장치 |
US5129229A (en) * | 1990-06-19 | 1992-07-14 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system for civil-engineering and construction machine |
WO1993018308A1 (en) * | 1992-03-09 | 1993-09-16 | Hitachi Construction Machinery Co., Ltd. | Hydraulically driving system |
JP3664733B2 (ja) * | 1995-07-10 | 2005-06-29 | 日立建機株式会社 | 油圧駆動装置 |
WO1997032135A1 (en) | 1996-02-28 | 1997-09-04 | Komatsu Ltd. | Control device for hydraulic drive machine |
JP3745038B2 (ja) | 1996-07-30 | 2006-02-15 | ボッシュ・レックスロス株式会社 | 可変容量ポンプを使用したブリードオフ制御方法 |
US6199378B1 (en) * | 1999-09-21 | 2001-03-13 | Caterpillar Inc. | Off-setting rate of pressure rise in a fluid system |
GB0303789D0 (en) * | 2003-02-19 | 2003-03-26 | Cnh Belgium Nv | Apparatus and method for providing hydraulic power to an agricultural implement |
JP2006183413A (ja) * | 2004-12-28 | 2006-07-13 | Shin Caterpillar Mitsubishi Ltd | 建設機械の制御回路 |
WO2012082176A1 (en) * | 2010-12-17 | 2012-06-21 | Parker-Hannifin Corporation | Hydraulic system with return pressure control |
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2011
- 2011-09-21 JP JP2011206443A patent/JP5631830B2/ja active Active
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2012
- 2012-08-09 EP EP12833906.6A patent/EP2759712A4/en active Pending
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60245804A (ja) * | 1984-05-19 | 1985-12-05 | Kayaba Ind Co Ltd | 可変容量ポンプの制御回路 |
JPH04258504A (ja) * | 1991-02-07 | 1992-09-14 | Sumitomo Constr Mach Co Ltd | 建設機械の油圧駆動装置 |
JPH0742709A (ja) * | 1993-08-02 | 1995-02-10 | Yutani Heavy Ind Ltd | 油圧機械のアクチュエータ制御装置 |
JPH09236101A (ja) * | 1996-02-29 | 1997-09-09 | Komatsu Ltd | 油圧駆動機械の制御装置 |
JPH11303809A (ja) * | 1998-04-20 | 1999-11-02 | Komatsu Ltd | 油圧駆動機械のポンプ制御装置 |
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Publication number | Publication date |
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CN103748364A (zh) | 2014-04-23 |
EP2759712A4 (en) | 2015-11-11 |
KR20140050087A (ko) | 2014-04-28 |
US20140196793A1 (en) | 2014-07-17 |
KR101592483B1 (ko) | 2016-02-05 |
WO2013042483A1 (ja) | 2013-03-28 |
EP2759712A1 (en) | 2014-07-30 |
JP5631830B2 (ja) | 2014-11-26 |
US9651061B2 (en) | 2017-05-16 |
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