JP5898232B2 - 建設機械用可変容量型油圧ポンプの流量制御方法 - Google Patents
建設機械用可変容量型油圧ポンプの流量制御方法 Download PDFInfo
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- JP5898232B2 JP5898232B2 JP2013547277A JP2013547277A JP5898232B2 JP 5898232 B2 JP5898232 B2 JP 5898232B2 JP 2013547277 A JP2013547277 A JP 2013547277A JP 2013547277 A JP2013547277 A JP 2013547277A JP 5898232 B2 JP5898232 B2 JP 5898232B2
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- 238000000034 method Methods 0.000 title claims description 23
- 238000006073 displacement reaction Methods 0.000 title claims description 18
- 238000010276 construction Methods 0.000 title claims description 16
- 238000001514 detection method Methods 0.000 claims description 33
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/04—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- 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
-
- 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
- E02F9/2278—Hydraulic circuits
- E02F9/2285—Pilot-operated systems
-
- 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
- F15B11/02—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"
- F15B11/0423—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" by controlling pump output or bypass, other than to maintain constant speed
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/255—Flow control functions
-
- 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
- F15B2211/6652—Control of the pressure source, e.g. control of the swash plate angle
-
- 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
- F15B2211/6654—Flow rate control
-
- 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
- F15B2211/6655—Power control, e.g. combined pressure and flow rate control
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
可変容量型油圧ポンプと、油圧ポンプに接続される油圧アクチュエータと、オペレータによる操作量に比例する操作信号を出力する操作レバーと、操作レバーからの操作信号によって切り換えられたときに油圧アクチュエータの起動、停止及び方向切換えを制御する制御弁と、操作レバーの操作量を検出する操作量検出手段と、油圧ポンプから吐出される作動油の圧力を検出する吐出圧力検出センサと、操作量検出手段及び吐出圧力検出センサからの検出信号によって油圧ポンプの吐出流量を制御するコントローラと、を備える建設機械用油圧ポンプの流量制御方法において、
オペレータによる操作レバーの操作量に応じて油圧ポンプに求められる流量Q1を算出する第1のステップと、
吐出圧力検出センサによって検出された圧力に対して、油圧ポンプの特定の馬力またはトルクを超えない範囲において許容可能な吐出流量を算出する第2のステップと、
第2のステップにおいて算出された許容可能な吐出流量の値の範囲内で操作レバーの操作量に比例する吐出流量に油圧ポンプの吐出流量を制御する第3のステップと、を含み、
前記第3のステップにおいて、前記操作レバーの操作量が無負荷において最大のポンプ流量を求める操作量であるとき、油圧ポンプの吐出流量を予め設定された圧力に対して油圧ポンプの最大吐出可能な流量になるように制御し、
前記無負荷における前記操作レバーの操作量に応じて油圧ポンプに求められる吐出流量を無負荷における油圧ポンプの最大吐出流量に対する百分率で算出して、負荷が発生しても予め設定された圧力に対する油圧ポンプの最大吐出可能な流量に前記の算出された百分率を乗算して油圧ポンプの吐出流量を算出する。
オペレータによる操作量に比例する操作信号を出力する操作レバー(RCV)1と、エンジン2に接続される可変容量型油圧ポンプ(以下、「油圧ポンプ」と称する。)3及びパイロットポンプ4と、油圧ポンプ3に接続される油圧アクチュエータ(図示せず)と、操作レバー1からの操作信号によって切り換えられたときに油圧アクチュエータ(油圧シリンダなどをいう)の起動、停止及び方向切換えを制御する制御弁5(一例として、MCV用スプールが用いられる)と、操作レバー1の操作量を検出する検出手段(一例として、パイロット圧力検出センサ6をいう)と、油圧ポンプ3から吐出される作動油の圧力を検出する吐出圧力検出センサ7と、パイロット圧力検出センサ6及び吐出圧力検出センサ7からの検出信号によって油圧ポンプ3の吐出流量を制御するコントローラ8と、を備える建設機械用油圧ポンプの流量制御方法において、
オペレータによる操作レバー1の操作量に応じて油圧ポンプ3に求められる流量Q1を算出する第1のステップ(S1000)と、
吐出圧力検出センサ7によって検出された圧力に対して、油圧ポンプの特定の馬力またはトルクを超えない範囲において許容可能な吐出流量Qavailable を算出する第2のステップ(S2000)と、
第2のステップ(S2000)において算出された許容可能な吐出流量Qavailable の値の範囲内で操作レバー1の操作量に比例して油圧ポンプ3の吐出流量を制御する第3のステップ(S3000)と、を含む。
2 エンジン
3 可変容量型油圧ポンプ
4 パイロットポンプ
5 制御弁(MCV)
6 パイロット圧力検出センサ
7 吐出圧力検出センサ
8 コントローラ
9 電磁比例制御弁
Claims (1)
- 可変容量型油圧ポンプと、油圧ポンプに接続される油圧アクチュエータと、オペレータによる操作量に比例する操作信号を出力する操作レバーと、前記操作レバーからの操作信号によって切り換えられたときに前記油圧アクチュエータの起動、停止及び方向切換えを制御する制御弁と、前記操作レバーの操作量を検出する操作量検出手段と、前記油圧ポンプから吐出される作動油の圧力を検出する吐出圧力検出センサと、前記操作量検出手段及び前記吐出圧力検出センサからの検出信号によって前記油圧ポンプの吐出流量を制御するコントローラと、を備える建設機械用可変容量型油圧ポンプの流量制御方法において、
オペレータによる前記操作レバーの操作量に応じて前記油圧ポンプに求められる吐出流量を算出する第1のステップと、
前記吐出圧力検出センサにより検出された圧力に対して、前記油圧ポンプの特定の馬力またはトルクを超えない最大吐出可能な流量を算出する第2のステップと、
前記第2のステップにおいて設定された最大吐出可能な流量の値の範囲内で前記操作レバーの操作量に比例する吐出流量に前記油圧ポンプの吐出流量を制御する第3のステップと、を含み、
前記第3のステップにおいて、前記操作レバーの操作量が無負荷において最大のポンプ流量を求める操作量であるとき、油圧ポンプの吐出流量を予め設定された圧力に対して油圧ポンプの最大吐出可能な流量になるように制御し、
前記無負荷における前記操作レバーの操作量に応じて油圧ポンプに求められる吐出流量を無負荷における油圧ポンプの最大吐出流量に対する百分率で算出して、負荷が発生しても予め設定された圧力に対する油圧ポンプの最大吐出可能な流量に前記の算出された百分率を乗算して油圧ポンプの吐出流量を算出することを特徴とする建設機械用可変容量型油圧ポンプの流量制御方法。
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PCT/KR2010/009404 WO2012091192A1 (ko) | 2010-12-28 | 2010-12-28 | 건설기계용 가변용량형 유압펌프 유량 제어방법 |
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JP2014502710A JP2014502710A (ja) | 2014-02-03 |
JP5898232B2 true JP5898232B2 (ja) | 2016-04-06 |
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US (1) | US9303659B2 (ja) |
EP (1) | EP2660477B1 (ja) |
JP (1) | JP5898232B2 (ja) |
KR (1) | KR101847882B1 (ja) |
CN (1) | CN103270319B (ja) |
WO (1) | WO2012091192A1 (ja) |
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EP2597208B1 (en) | 2010-07-19 | 2021-05-19 | Volvo Construction Equipment AB | System for controlling hydraulic pump in construction machine |
JP5752526B2 (ja) * | 2011-08-24 | 2015-07-22 | 株式会社小松製作所 | 油圧駆動システム |
CA2891709C (en) | 2012-11-23 | 2017-10-24 | Volvo Construction Equipment Ab | Apparatus and method for controlling preferential function of a construction machine |
US10670050B2 (en) | 2013-04-03 | 2020-06-02 | Doosan Infracore Co., Ltd. | Apparatus and method for controlling spool displacement of construction machine |
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KR100641393B1 (ko) * | 2004-12-07 | 2006-11-01 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 유압제어회로 및 유압제어방법 |
JP2006177560A (ja) * | 2006-01-10 | 2006-07-06 | Komatsu Ltd | 油圧駆動機械の制御装置 |
JP4871760B2 (ja) | 2007-02-28 | 2012-02-08 | 日立建機株式会社 | 油圧駆動車両の原動機回転数制御装置 |
KR100919436B1 (ko) * | 2008-06-03 | 2009-09-29 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 복수의 가변용량형 유압펌프 토오크 제어시스템 및 그제어방법 |
US9194382B2 (en) | 2010-06-24 | 2015-11-24 | Volvo Contruction Equipment Ab | Hydraulic pump control system for construction machinery |
KR101728381B1 (ko) | 2010-06-28 | 2017-04-19 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계의 유압펌프 유량 제어방법 |
EP2597208B1 (en) | 2010-07-19 | 2021-05-19 | Volvo Construction Equipment AB | System for controlling hydraulic pump in construction machine |
-
2010
- 2010-12-28 EP EP10861258.1A patent/EP2660477B1/en active Active
- 2010-12-28 CN CN201080070953.5A patent/CN103270319B/zh not_active Expired - Fee Related
- 2010-12-28 KR KR1020137015265A patent/KR101847882B1/ko active IP Right Grant
- 2010-12-28 WO PCT/KR2010/009404 patent/WO2012091192A1/ko active Application Filing
- 2010-12-28 JP JP2013547277A patent/JP5898232B2/ja not_active Expired - Fee Related
- 2010-12-28 US US13/994,857 patent/US9303659B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN103270319A (zh) | 2013-08-28 |
EP2660477B1 (en) | 2019-09-11 |
EP2660477A4 (en) | 2018-01-03 |
EP2660477A1 (en) | 2013-11-06 |
CN103270319B (zh) | 2016-07-06 |
KR101847882B1 (ko) | 2018-04-11 |
WO2012091192A1 (ko) | 2012-07-05 |
US9303659B2 (en) | 2016-04-05 |
JP2014502710A (ja) | 2014-02-03 |
KR20130143604A (ko) | 2013-12-31 |
US20130263583A1 (en) | 2013-10-10 |
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