EP1308415A2 - Dispositif de levage hydraulique en particulier pour chariots industriels alimentés par batterie et son procédé de commande - Google Patents
Dispositif de levage hydraulique en particulier pour chariots industriels alimentés par batterie et son procédé de commande Download PDFInfo
- Publication number
- EP1308415A2 EP1308415A2 EP02024330A EP02024330A EP1308415A2 EP 1308415 A2 EP1308415 A2 EP 1308415A2 EP 02024330 A EP02024330 A EP 02024330A EP 02024330 A EP02024330 A EP 02024330A EP 1308415 A2 EP1308415 A2 EP 1308415A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- pressure
- hydraulic
- line
- load
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
-
- 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
- F15B2211/20538—Type of pump constant 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- 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
- F15B2211/40—Flow control
- F15B2211/41—Flow control characterised by the positions of the valve element
- F15B2211/411—Flow control characterised by the positions of the valve element the positions being discrete
-
- 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
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/426—Flow 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
- F15B2211/40—Flow control
- F15B2211/46—Control of flow in the return line, i.e. meter-out 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
- F15B2211/50—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
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief 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
- F15B2211/50—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
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a directional control 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
- F15B2211/50—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
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid 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
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7052—Single-acting output members
-
- 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
- F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
-
- 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/75—Control of speed of the output member
Definitions
- the invention relates to a method for controlling a hydraulic lifting device, in particular for battery-operated Industrial trucks, one of an electric motor has drivable pump, by means of the lifting operation hydraulic oil from at least one hydraulic lifting cylinder fed to a storage container via a feed line is, the hydraulic oil in the load lowering mode from the lifting cylinder via a return flow line flowing through the driving the electric motor working as a generator Pump is returned to the reservoir.
- This task is related to the control method a hydraulic lifting device solved in that at the start of load-lowering operation both in the upstream of the pump located section of the return line as well as in downstream portion of the return line essentially the hydraulic in the lifting cylinder Pressure is built up, the pump with an actual speed is operated below a speed limit lies, and that a downstream in the return line Pump arranged proportional pressure relief valve only then essentially completely via a ramp function is opened when the actual speed of the pump is above the speed limit, the electric motor then works as a generator.
- a second check valve RV2 is arranged, that is a flow in the return direction, i.e. from the third Section L1.3 of the feed line L1 to the third section L2.3 allows the return line L2 and a flow prevented in the opposite direction.
- the hydraulic oil quantity delivered by pump P is exact corresponds to the amount of hydraulic oil generated by the volume flow controller SR1 is drained, the position of the Lift cylinder held.
- the individual hydraulic oil quantities and correspondingly the difference between the funded and the drained hydraulic oil quantity can over a change in the speed of the pump and / or via the Current supply and thus the degree of opening of the volume flow controller SR1 can be influenced.
- the third seat valve SV3 is closed and the pressure at the proportional pressure relief valve PDBV on the prevailing load pressure, the is detected by means of the first pressure transducer DA1. Then the first seat valve SV1 and the second seat valve SV2 opened and the speed the pump P until the desired lifting speed the lifting cylinder 12 is reached. From there on can continue the pending process in the above manner to be continued.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Analytical Chemistry (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001154449 DE10154449A1 (de) | 2001-11-06 | 2001-11-06 | Hydraulische Hubvorrichtung insbesondere für batteriegetriebene Flurförderzeuge und Verfahren zu deren Steuerung |
DE10154449 | 2001-11-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1308415A2 true EP1308415A2 (fr) | 2003-05-07 |
EP1308415A3 EP1308415A3 (fr) | 2005-05-25 |
EP1308415B1 EP1308415B1 (fr) | 2007-02-07 |
Family
ID=7704772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020024330 Expired - Fee Related EP1308415B1 (fr) | 2001-11-06 | 2002-11-02 | Dispositif de levage hydraulique en particulier pour chariots industriels alimentés par batterie et son procédé de commande |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1308415B1 (fr) |
DE (2) | DE10154449A1 (fr) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1369377A3 (fr) * | 2002-06-05 | 2006-07-05 | BT Industries | Procédé de commande pour chariot élévateur |
WO2011060844A1 (fr) * | 2009-11-17 | 2011-05-26 | Robert Bosch Gmbh | Entraînement hydraulique à récupération d'énergie |
CN102116285A (zh) * | 2010-01-05 | 2011-07-06 | 雷蒙德股份有限公司 | 监视物料运输车辆上液压泵的装置和方法 |
EP2508464A2 (fr) * | 2010-05-20 | 2012-10-10 | Doosan Industrial Vehicle Co., Ltd. | Système de récupération d'énergie pour chariot élévateur électrique |
EP2660184A1 (fr) * | 2010-12-28 | 2013-11-06 | Sunward Intelligent Equipment Co., Ltd. | Système de production d'électricité à régénération d'énergie applicable à un véhicule pour le chargement, le déchargement et le transport |
EP3165496A1 (fr) * | 2015-11-05 | 2017-05-10 | Kabushiki Kaisha Toyota Jidoshokki | Véhicule industriel |
CN107601390A (zh) * | 2017-09-22 | 2018-01-19 | 太仓市高泰机械有限公司 | 一种带有自锁功能的液压车的工作方法 |
CN107601391A (zh) * | 2017-09-22 | 2018-01-19 | 太仓市高泰机械有限公司 | 一种液压车的自动感应及自锁方法 |
CN112209305A (zh) * | 2020-10-30 | 2021-01-12 | 合力工业车辆(上海)有限公司 | 一种仓储叉车液压*** |
WO2022193769A1 (fr) * | 2021-03-19 | 2022-09-22 | 湖南星邦智能装备股份有限公司 | Boucle de commande de vérin à huile flottante à double effet |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012005432A1 (de) * | 2012-03-17 | 2013-09-19 | Jungheinrich Aktiengesellschaft | Flurförderzeug mit mindestens einem Hubzylinder |
CN107458999A (zh) * | 2017-09-22 | 2017-12-12 | 太仓市高泰机械有限公司 | 一种带有阻尼减震装置的自调型液压车 |
CN107352473A (zh) * | 2017-09-22 | 2017-11-17 | 太仓市高泰机械有限公司 | 一种自调型液压车的工作方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4416173A1 (de) * | 1994-05-06 | 1995-11-09 | Jungheinrich Ag | Hydraulische Hubvorrichtung für batteriebetriebene Flurförderzeuge oder dergleichen |
EP0908413A2 (fr) * | 1997-10-08 | 1999-04-14 | Still Wagner GmbH & Co. KG | Chariot élévateur avec un dispositif de prise de la charge et procédé pour descendre le dispositif de prise de la charge |
DE19921629A1 (de) * | 1999-05-10 | 2000-11-16 | Dambach Lagersysteme Gmbh | Hydraulische Hubvorrichtung |
EP1193211A2 (fr) * | 2000-09-28 | 2002-04-03 | STILL WAGNER GmbH & Co KG | Dispositif de levage hydraulique |
-
2001
- 2001-11-06 DE DE2001154449 patent/DE10154449A1/de not_active Withdrawn
-
2002
- 2002-11-02 EP EP20020024330 patent/EP1308415B1/fr not_active Expired - Fee Related
- 2002-11-02 DE DE50209428T patent/DE50209428D1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4416173A1 (de) * | 1994-05-06 | 1995-11-09 | Jungheinrich Ag | Hydraulische Hubvorrichtung für batteriebetriebene Flurförderzeuge oder dergleichen |
EP0908413A2 (fr) * | 1997-10-08 | 1999-04-14 | Still Wagner GmbH & Co. KG | Chariot élévateur avec un dispositif de prise de la charge et procédé pour descendre le dispositif de prise de la charge |
DE19921629A1 (de) * | 1999-05-10 | 2000-11-16 | Dambach Lagersysteme Gmbh | Hydraulische Hubvorrichtung |
EP1193211A2 (fr) * | 2000-09-28 | 2002-04-03 | STILL WAGNER GmbH & Co KG | Dispositif de levage hydraulique |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1369377A3 (fr) * | 2002-06-05 | 2006-07-05 | BT Industries | Procédé de commande pour chariot élévateur |
WO2011060844A1 (fr) * | 2009-11-17 | 2011-05-26 | Robert Bosch Gmbh | Entraînement hydraulique à récupération d'énergie |
US20130199170A1 (en) * | 2009-11-17 | 2013-08-08 | Robert Bosch Gmbh | Hydraulic Drive with Energy Recovery |
CN102116285A (zh) * | 2010-01-05 | 2011-07-06 | 雷蒙德股份有限公司 | 监视物料运输车辆上液压泵的装置和方法 |
US20110162447A1 (en) * | 2010-01-05 | 2011-07-07 | John Bryant Kirk | Apparatus and method for monitoring a hydraulic pump on a material handling vehicle |
US8196464B2 (en) * | 2010-01-05 | 2012-06-12 | The Raymond Corporation | Apparatus and method for monitoring a hydraulic pump on a material handling vehicle |
CN102116285B (zh) * | 2010-01-05 | 2015-03-04 | 雷蒙德股份有限公司 | 监视物料运输车辆上液压泵的装置和方法 |
EP2508464A4 (fr) * | 2010-05-20 | 2014-09-10 | Doosan Corp | Système de récupération d'énergie pour chariot élévateur électrique |
EP2508464A2 (fr) * | 2010-05-20 | 2012-10-10 | Doosan Industrial Vehicle Co., Ltd. | Système de récupération d'énergie pour chariot élévateur électrique |
US9079755B2 (en) | 2010-05-20 | 2015-07-14 | Doosan Corporation | Energy reclaiming system for electric forklift truck |
EP2660184A1 (fr) * | 2010-12-28 | 2013-11-06 | Sunward Intelligent Equipment Co., Ltd. | Système de production d'électricité à régénération d'énergie applicable à un véhicule pour le chargement, le déchargement et le transport |
EP2660184A4 (fr) * | 2010-12-28 | 2014-09-17 | Sunward Intelligent Equipment | Système de production d'électricité à régénération d'énergie applicable à un véhicule pour le chargement, le déchargement et le transport |
US9422949B2 (en) | 2010-12-28 | 2016-08-23 | Sunward Intelligent Equipment Co., Ltd. | Energy-recovery generation system for handling and carrying electric vehicle |
EP3165496A1 (fr) * | 2015-11-05 | 2017-05-10 | Kabushiki Kaisha Toyota Jidoshokki | Véhicule industriel |
CN107601390A (zh) * | 2017-09-22 | 2018-01-19 | 太仓市高泰机械有限公司 | 一种带有自锁功能的液压车的工作方法 |
CN107601391A (zh) * | 2017-09-22 | 2018-01-19 | 太仓市高泰机械有限公司 | 一种液压车的自动感应及自锁方法 |
CN112209305A (zh) * | 2020-10-30 | 2021-01-12 | 合力工业车辆(上海)有限公司 | 一种仓储叉车液压*** |
WO2022193769A1 (fr) * | 2021-03-19 | 2022-09-22 | 湖南星邦智能装备股份有限公司 | Boucle de commande de vérin à huile flottante à double effet |
Also Published As
Publication number | Publication date |
---|---|
EP1308415B1 (fr) | 2007-02-07 |
DE50209428D1 (de) | 2007-03-22 |
EP1308415A3 (fr) | 2005-05-25 |
DE10154449A1 (de) | 2003-05-15 |
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