JP6726127B2 - 油圧システム - Google Patents
油圧システム Download PDFInfo
- Publication number
- JP6726127B2 JP6726127B2 JP2017067526A JP2017067526A JP6726127B2 JP 6726127 B2 JP6726127 B2 JP 6726127B2 JP 2017067526 A JP2017067526 A JP 2017067526A JP 2017067526 A JP2017067526 A JP 2017067526A JP 6726127 B2 JP6726127 B2 JP 6726127B2
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- JP
- Japan
- Prior art keywords
- valve
- proportional valve
- pressure
- increases
- secondary pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/08—Learning methods
- G06N3/084—Backpropagation, e.g. using gradient descent
-
- 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
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
-
- 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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/21—Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
- G06F18/214—Generating training patterns; Bootstrap methods, e.g. bagging or boosting
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/04—Architecture, e.g. interconnection topology
- G06N3/044—Recurrent networks, e.g. Hopfield networks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/08—Learning methods
- G06N3/082—Learning methods modifying the architecture, e.g. adding, deleting or silencing nodes or connections
Description
11 供給ライン
21 主ポンプ
22 レギュレータ
24 油圧アクチュエータ
3 制御弁
4 操作装置
41 操作部
5 アンロード弁
51 パイロットポート
6 電磁比例弁(第1電磁比例弁)
7 電磁指令弁(第2電磁比例弁)
8 高圧選択弁
Claims (2)
- 操作部に対する操作量に応じた操作信号を出力する操作装置と、
前記操作装置から出力される操作信号が大きくなるほど油圧アクチュエータへ作動油を供給する通路の開口面積を増大させる制御弁と、
供給ラインにより前記制御弁と接続された可変容量型のポンプと、
制御圧が高くなるほど前記ポンプの傾転角を増大させるレギュレータと、
前記操作装置から出力される操作信号が大きくなるほど高い二次圧を出力する第1電磁比例弁と、
前記供給ラインから分岐するアンロードラインに設けられた、前記第1電磁比例弁から出力される二次圧が高くなるほど全開状態から全閉状態に向かって開口面積が減少するアンロード弁と、
前記操作装置から出力される操作信号が大きくなるほど高い二次圧を出力する第2電磁比例弁であって、同一の操作信号に対して当該第2電磁比例弁の二次圧が前記第1電磁比例弁の二次圧よりも高く設定された第2電磁比例弁と、
前記第1電磁比例弁から出力される二次圧と前記第2電磁比例弁から出力される二次圧のうち高い方を選択して前記制御圧として前記レギュレータへ導く高圧選択弁と、
を備える、油圧システム。 - 前記アンロード弁は、前記第1電磁比例弁と接続されたパイロットポートを有し、前記パイロットポートに導かれるパイロット圧が第1設定値から第2設定値まで上昇するときに開口面積が所定値からゼロまで一定の傾きでまたはその傾きの直線に対して上向きに凸となる曲線に沿って減少するように構成され、
前記レギュレータは、前記制御圧が少なくともゼロから前記第1設定値まで上昇する間は、前記ポンプの吐出流量を最小吐出流量に維持するように構成されている、請求項1に記載の油圧システム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017067526A JP6726127B2 (ja) | 2017-03-30 | 2017-03-30 | 油圧システム |
US17/052,350 US20210232928A1 (en) | 2017-03-30 | 2018-05-02 | Placement-Aware Accelaration of Parameter Optimization in a Predictive Model |
CN201880019204.6A CN110741168B (zh) | 2017-03-30 | 2018-05-18 | 油压系统 |
PCT/IB2018/053502 WO2018178960A1 (ja) | 2017-03-30 | 2018-05-18 | 油圧システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017067526A JP6726127B2 (ja) | 2017-03-30 | 2017-03-30 | 油圧システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018168976A JP2018168976A (ja) | 2018-11-01 |
JP6726127B2 true JP6726127B2 (ja) | 2020-07-22 |
Family
ID=63674337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017067526A Active JP6726127B2 (ja) | 2017-03-30 | 2017-03-30 | 油圧システム |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210232928A1 (ja) |
JP (1) | JP6726127B2 (ja) |
CN (1) | CN110741168B (ja) |
WO (1) | WO2018178960A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11861378B2 (en) * | 2020-03-02 | 2024-01-02 | Asapp, Inc. | Vector-space representations of graphical user interfaces |
US20220188605A1 (en) * | 2020-12-11 | 2022-06-16 | X Development Llc | Recurrent neural network architectures based on synaptic connectivity graphs |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0288005U (ja) * | 1988-12-27 | 1990-07-12 | ||
US5758499A (en) * | 1995-03-03 | 1998-06-02 | Hitachi Construction Machinery Co., Ltd. | Hydraulic control system |
JP2004360898A (ja) * | 2003-05-15 | 2004-12-24 | Kobelco Contstruction Machinery Ltd | 作業機械の油圧制御装置 |
US7155909B2 (en) * | 2003-05-15 | 2007-01-02 | Kobelco Construction Machinery Co., Ltd. | Hydraulic controller for working machine |
JP4453411B2 (ja) * | 2004-03-18 | 2010-04-21 | コベルコ建機株式会社 | 作業機械の油圧制御装置 |
KR100956999B1 (ko) * | 2007-12-10 | 2010-05-11 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 외부 파일럿 작동형 홀딩밸브를 갖는 유압회로 |
JP2011149509A (ja) * | 2010-01-22 | 2011-08-04 | Komatsu Ltd | 建設機械の油圧回路及びその制御方法 |
JP2011256814A (ja) * | 2010-06-10 | 2011-12-22 | Sumitomo (Shi) Construction Machinery Co Ltd | 建設機械のポンプ吐出量制御回路 |
JP5778058B2 (ja) * | 2012-03-09 | 2015-09-16 | 住友建機株式会社 | 建設機械の制御装置及びその制御方法 |
US9460711B1 (en) * | 2013-04-15 | 2016-10-04 | Google Inc. | Multilingual, acoustic deep neural networks |
JP6270704B2 (ja) * | 2014-12-10 | 2018-01-31 | 川崎重工業株式会社 | 建設機械の油圧駆動システム |
JP6484021B2 (ja) * | 2014-12-12 | 2019-03-13 | 日立建機株式会社 | 作業機械 |
JP5965502B1 (ja) * | 2015-02-23 | 2016-08-03 | 川崎重工業株式会社 | 建設機械の油圧駆動システム |
US10826934B2 (en) * | 2017-01-10 | 2020-11-03 | Crowdstrike, Inc. | Validation-based determination of computational models |
-
2017
- 2017-03-30 JP JP2017067526A patent/JP6726127B2/ja active Active
-
2018
- 2018-05-02 US US17/052,350 patent/US20210232928A1/en active Pending
- 2018-05-18 CN CN201880019204.6A patent/CN110741168B/zh active Active
- 2018-05-18 WO PCT/IB2018/053502 patent/WO2018178960A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN110741168A (zh) | 2020-01-31 |
JP2018168976A (ja) | 2018-11-01 |
CN110741168B (zh) | 2021-07-09 |
US20210232928A1 (en) | 2021-07-29 |
WO2018178960A1 (ja) | 2018-10-04 |
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