JP2022110736A - 流体圧力制御装置 - Google Patents
流体圧力制御装置 Download PDFInfo
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- 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
- F15B13/0433—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 the pilot valves being pressure control valves
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2093—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power
- G05D16/2095—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power using membranes within the main valve
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
- F15B11/064—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam with devices for saving the compressible medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- F15B13/025—Pressure reducing valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- 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
- F15B13/0401—Valve members; Fluid interconnections therefor
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- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
- G05D16/2046—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged for the control of a single pressure from a plurality of converging pressures
- G05D16/2053—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged for the control of a single pressure from a plurality of converging pressures the plurality of throttling means comprising only a first throttling means acting on a higher pressure and a second throttling means acting on a lower pressure, e.g. the atmosphere
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/51—Pressure control characterised by the positions of the valve element
-
- 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
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5158—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and an output member
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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
- 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
- F15B2211/50—Pressure control
- F15B2211/575—Pilot pressure control
- F15B2211/5753—Pilot pressure control for closing a valve
-
- 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
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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
- 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
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
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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
- 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
- F15B2211/6316—Electronic controllers using input signals representing a pressure the pressure being a pilot pressure
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/632—Electronic controllers using input signals representing a flow rate
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/67—Methods for controlling pilot pressure
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- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
- F15B2211/8855—Compressible fluids, e.g. specific to pneumatics
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Abstract
Description
Qe=K(P1-P2)
制御部56は、設定圧力ごとに決められた定数Kに関するテーブル(表)を記憶しており、第1圧力センサ58および第2圧力センサ60から入力される信号に基づいて、推定流量Qeを算出する。
18…出口ポート 26…供給弁
28…弁体 36…パイロット圧供給用電磁弁
38…パイロット圧排出用電磁弁 44…ダイヤフラム
48…パイロット室 50…フィードバック室
56…制御部 58…第1圧力センサ
60…第2圧力センサ G2…スタンバイ解除信号
G3…モード切替信号
Claims (14)
- 流体供給源と流体アクチュエータとの間に設けられ、前記流体アクチュエータに供給する流体圧力を稼働圧力に設定するノーマルモードから同流体圧力を前記稼働圧力よりも低いスタンバイ圧力に設定するスタンバイモードに移行することが可能な流体圧力制御装置であって、
前記流体供給源に接続される入口ポートと、前記流体アクチュエータに接続される出口ポートと、前記入口ポートと前記出口ポートを連絡する流路の面積を調整可能な供給弁と、前記供給弁の弁体を変位させるためのダイヤフラムとを備え、前記ダイヤフラムの一方側にはパイロット室が形成され、前記ダイヤフラムの他方側には前記出口ポートと連通するフィードバック室が形成され、前記入口ポートと前記パイロット室を接続する流路にパイロット圧供給用電磁弁が設けられ、前記パイロット室の圧力流体を外部に排出する流路にパイロット圧排出用電磁弁が設けられ、前記パイロット圧供給用電磁弁および前記パイロット圧排出用電磁弁を制御する制御部が設けられ、前記供給弁を通過した圧力流体が外部に排出される流路を有しない流体圧力制御装置。 - 請求項1記載の流体圧力制御装置において、
前記流体アクチュエータに向かって流れる流量が所定時間継続して所定値を下回ると、前記ノーマルモードから前記スタンバイモードに移行する流体圧力制御装置。 - 請求項1記載の流体圧力制御装置において、
前記流体アクチュエータに向かって流れる流量が所定時間継続して所定値を下回った後、外部から入力されるモード切替信号が変化することにより、前記ノーマルモードから前記スタンバイモードに移行する流体圧力制御装置。 - 請求項2または3記載の流体圧力制御装置において、
前記出口ポートの圧力を検出する第1圧力センサを備え、前記制御部は、前記第1圧力センサによって検出される前記出口ポートの圧力が前記稼働圧力または前記スタンバイ圧力となるように前記パイロット圧供給用電磁弁および前記パイロット圧排出用電磁弁を制御する流体圧力制御装置。 - 請求項4記載の流体圧力制御装置において、
前記パイロット室の圧力を検出する第2圧力センサを備え、前記制御部は、前記第1圧力センサおよび前記第2圧力センサの検出信号に基づいて前記流体アクチュエータに向かって流れる流量を推定する流体圧力制御装置。 - 請求項5記載の流体圧力制御装置において、
前記流体アクチュエータに向かって流れる流量を以下の式により推定する流体圧力制御装置。
Qe=K(P1-P2)
ただし、Qeは推定流量、P1は前記パイロット室の圧力、P2は前記出口ポートの圧力、Kは前記稼働圧力の設定値に応じた定数である。 - 請求項5記載の流体圧力制御装置において、
前記流体アクチュエータに向かって流れる流量を以下の式により推定する流体圧力制御装置。
Qe=K´(P1-P2)
ただし、Qeは推定流量、P1は前記パイロット室の圧力、P2は前記出口ポートの圧力、K´は前記稼働圧力の設定値と前記入口ポートの圧力と前記供給弁を通過する圧力流体の温度とに応じた定数である。 - 請求項1記載の流体圧力制御装置において、
前記ノーマルモードで動作しているとき、前記出口ポートの圧力が前記稼働圧力よりも大きく、かつ、前記パイロット室の圧力が大気圧よりも僅かに大きい所定値以下となっている場合は、前記パイロット圧排出用電磁弁を遮断位置にする流体圧力制御装置。 - 請求項1記載の流体圧力制御装置において、
前記スタンバイモードで動作しているとき、前記出口ポートの圧力が前記スタンバイ圧力よりも大きく、かつ、前記パイロット室の圧力が大気圧よりも僅かに大きい所定値以下となっている場合は、前記パイロット圧排出用電磁弁を遮断位置にする流体圧力制御装置。 - 請求項1記載の流体圧力制御装置において、
前記スタンバイモードから前記ノーマルモードへの復帰は、スタンバイ解除信号により、または、モード切替信号の変化により行われる流体圧力制御装置。 - 請求項2または3記載の流体圧力制御装置において、
前記スタンバイモードから前記ノーマルモードへの復帰は、前記流体アクチュエータに向かって流れる流量が前記所定値より大きくなったときに行われる流体圧力制御装置。 - 請求項1記載の流体圧力制御装置において、
前記スタンバイモードから前記ノーマルモードへの復帰は、前記スタンバイ圧力から前記稼働圧力まで段階的に設定圧力を変更することによって行われる流体圧力制御装置。 - 請求項1記載の流体圧力制御装置において、
前記稼働圧力および前記スタンバイ圧力の設定値を任意に変更することができる流体圧力制御装置。 - 請求項1記載の流体圧力制御装置において、
外部から入力されるモード切替信号の変化によって前記ノーマルモードから前記スタンバイモードに移行する流体圧力制御装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021006335A JP7424322B2 (ja) | 2021-01-19 | 2021-01-19 | 流体圧力制御装置 |
US17/647,360 US20220228608A1 (en) | 2021-01-19 | 2022-01-07 | Fluid pressure control device |
KR1020220004040A KR20220105128A (ko) | 2021-01-19 | 2022-01-11 | 유체압력 제어장치 |
EP22151308.8A EP4030259A1 (en) | 2021-01-19 | 2022-01-13 | Fluid pressure control device |
TW111101399A TWI803148B (zh) | 2021-01-19 | 2022-01-13 | 流體壓力控制裝置 |
CN202210053185.7A CN114811059B (zh) | 2021-01-19 | 2022-01-18 | 流体压力控制装置 |
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2021
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2022
- 2022-01-07 US US17/647,360 patent/US20220228608A1/en active Pending
- 2022-01-11 KR KR1020220004040A patent/KR20220105128A/ko unknown
- 2022-01-13 TW TW111101399A patent/TWI803148B/zh active
- 2022-01-13 EP EP22151308.8A patent/EP4030259A1/en active Pending
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CN114811059A (zh) | 2022-07-29 |
TWI803148B (zh) | 2023-05-21 |
TW202242294A (zh) | 2022-11-01 |
JP7424322B2 (ja) | 2024-01-30 |
EP4030259A1 (en) | 2022-07-20 |
KR20220105128A (ko) | 2022-07-26 |
CN114811059B (zh) | 2024-04-23 |
US20220228608A1 (en) | 2022-07-21 |
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