WO2010097256A1 - Mobilhydrauliksystem - Google Patents
Mobilhydrauliksystem Download PDFInfo
- Publication number
- WO2010097256A1 WO2010097256A1 PCT/EP2010/050781 EP2010050781W WO2010097256A1 WO 2010097256 A1 WO2010097256 A1 WO 2010097256A1 EP 2010050781 W EP2010050781 W EP 2010050781W WO 2010097256 A1 WO2010097256 A1 WO 2010097256A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- low
- pressure
- hydraulic system
- hydraulic
- storage space
- Prior art date
Links
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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
-
- 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
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/21—Accumulator cushioning means using springs
-
- 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
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
-
- 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
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3154—Accumulator separating means having flexible separating means the flexible separating means being completely enclosed, e.g. using gas-filled balls or foam
-
- 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
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/32—Accumulator separating means having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
-
- 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
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the invention relates to a mobile hydraulic system for a hybrid vehicle, comprising a hydraulic accumulator device comprising a high-pressure accumulator and a low-pressure accumulator, between which a hydraulic drive unit is switched, which serves to promote a non-compressible fluid from the low-pressure accumulator into the high-pressure accumulator in a storage operating state from which the non-compressible fluid can be relieved into the low pressure accumulator in a drive mode to hydraulically drive the hydraulic drive unit.
- German Laid-Open Specification DE 10 2006 060 078 A1 discloses a hydraulic accumulator for a mobile hydraulic system with a separating element movably arranged within a storage housing, which separates two fluid spaces within the storage housing from one another.
- the one fluid space contains a compressible fluid
- the other fluid space contains a non-compressible fluid.
- the storage housing is housed in a structural component of the mobile hydraulic system.
- the object of the invention is to reduce the space required for a hydraulic accumulator device in a mobile hydraulic system according to the preamble of claim 1 on.
- the object is in a mobile hydraulic system for a hybrid vehicle, with a
- Hydraulic accumulator device which has a high-pressure storage space and a low-pressure storage space.
- pressure storage space between which a hydraulic drive unit is connected, which serves to promote a non-compressible fluid from the low-pressure storage space in the high pressure storage space from which the non-compressible fluid can be relieved in a drive operating state in the low-pressure accumulator in a storage operating state to hydraulically drive the hydraulic drive unit, achieved in that the low-pressure reservoir and the high-pressure accumulator fluidly separated by a separator and are arranged in a common receiving space in which a variable equalization volume is arranged with a compressible fluid.
- the non-compressible fluid is conveyed for example from a tank, which is the low-pressure storage space in the hydraulic accumulator, which includes the high-pressure accumulator.
- a tank which is the low-pressure storage space in the hydraulic accumulator, which includes the high-pressure accumulator.
- practically two hydraulic accumulators are combined in a common receiving space of the hydraulic accumulator device according to the invention.
- only a variable equalization volume is needed for the low-pressure storage space and the high-pressure storage space.
- a preferred embodiment of the mobile hydraulic system is characterized in that the separating means comprises a piston which limits the high pressure storage space.
- the non-compressible fluid is conveyed into the high-pressure storage space such that a compressive force is applied to the piston by the non-compressible fluid.
- Another preferred embodiment of the mobile hydraulic system is characterized in that the piston is acted upon or biased by a storage spring against the high-pressure accumulator space. If, in the storage operating state, fluid that is not compressible by the hydraulic drive unit is conveyed from the low-pressure storage space into the high-pressure storage space, then the piston is moved against the spring force of the storage spring, which stores the hydraulic energy.
- variable compensating volume with the compressible fluid is designed as a gas bubble.
- the variable compensation volume takes up volumetric changes in the fluid filling in the common receiving space. Such volumetric changes can arise from density changes due to pressure and temperature.
- variable compensation volume is arranged with the compressible fluid in the low-pressure storage space.
- the variable compensation volume is preferably arranged at an end of the low-pressure storage space facing away from the high-pressure storage space.
- a further preferred embodiment of the mobile hydraulic system is characterized in that the separating means comprises a further piston which limits the low-pressure storage space.
- Another preferred embodiment of the mobile hydraulic system is characterized in that the compensating volume is provided between the two pistons.
- the compensating volume between the two pistons is preferably filled with gas and serves to volumetric changes of
- an intermediate spring is arranged or clamped between the two pistons.
- the intermediate spring is, for example, as well as the storage spring, a helical compression spring.
- the invention further relates to a hydraulic hybrid vehicle having a previously described mobile hydraulic system.
- the hydraulic accumulator device according to the invention is used to store and use energy generated, for example, during braking of the wheels, to assist the propulsion system of the vehicle, for example when accelerating.
- Figure 1 is a highly simplified representation of a mobile hydraulic system for a hybrid vehicle with a hydraulic accumulator device, the two separate
- Hydraulic accumulator comprises;
- FIG. 2 shows a simplified representation of a hydraulic accumulator device according to a first exemplary embodiment of the invention with two pistons and a variable compensation volume and
- Figure 3 shows a similar embodiment as in Figure 2 with a piston and a variable compensating volume.
- a mobile hydraulic system 1 with a hydraulic accumulator 2 is shown greatly simplified.
- the hydraulic accumulator device 2 comprises a high-pressure accumulator chamber 4 and a low-pressure accumulator chamber 5 for a non-compressible fluid, such as hydraulic oil.
- the high pressure accumulator 4 is provided in a hydraulic accumulator 6, which is designed as a bladder accumulator with a gas bubble 7.
- the low-pressure accumulator 5 is provided in a separate hydraulic accumulator 8, which is also designed as a bladder accumulator with a gas bubble 9.
- a fluid line 1 1 goes out for the incompressible fluid.
- a further fluid line 12 for the incompressible fluid starts from the low-pressure reservoir 5 of the hydraulic accumulator 8.
- the fluid line 1 1 connects the high-pressure storage space 4 fluidically or hydraulically to an output of a hydraulic drive unit 13.
- the further fluid line 12 connects the low-pressure Storage space 5 fluidly or hydraulically with an input of the hydraulic drive unit 13th
- the hydraulic drive unit 13 is a hydraulic pump / motor unit with a shaft 14, which, as indicated by an arrow 15, is rotatable.
- incompressible fluid is conveyed from the low-pressure storage space 5 via the hydraulic drive unit 13 into the high-pressure storage space 4.
- the associated hydraulic energy is stored in the hydraulic accumulator 6.
- non-compressible fluid can be relieved from the high-pressure reservoir 4 via the hydraulic drive unit 13 into the low-pressure reservoir 5, the shaft 14 being hydraulically driven by the hydraulic drive unit 13 in the direction of the arrow 15.
- energy stored on buses or trucks during deceleration may be used to assist an electromotive or internal combustion engine propulsion system to accelerate.
- FIG. 2 shows in simplified form a hydraulic accumulator device 22 with a storage housing 24 which delimits a common receiving space 25.
- the common receiving space 25 comprises both a high-pressure storage space 34 and a low-pressure storage space 35 for a non-compressible fluid, such as hydraulic oil.
- the two storage spaces 34, 35 for the non-compressible fluid are hydraulically separated from each other by a separator 36.
- the separating device 36 comprises a first piston 37, which delimits the high-pressure accumulator space 34, and a second piston 38, which limits the low-pressure accumulator space 35.
- the two pistons 37, 38 can be moved to and fro in the common receiving space 25.
- the second piston 38 is guided by means of two ring-like guiding and / or sealing means 41, 42 movable back and forth.
- the second guiding and / or sealing device 42 simultaneously serves as an axial stop for a storage spring 44 of the first piston 37.
- the storage spring 44 is between the
- Guiding and / or sealing device 42 and the first piston 37 is arranged or clamped.
- an intermediate spring 45 is arranged or clamped between the two pistons 37, 38.
- the space between the two pistons 37 and 38 serves in addition to the inclusion of the two springs 44 and 45 as a compensating volume 50, which is preferably filled with a gas such as nitrogen.
- a compensating volume 50 which is preferably filled with a gas such as nitrogen.
- the memory operating state which is also referred to as the pump operating state, is not compressible fluid from the low pressure accumulator space 35 via the fluid line 12, the hydraulic drive unit 13 and the fluid line 1 1 in the
- High-pressure reservoir 34 promoted.
- the two pistons 37, 38 are shifted in Figure 2 to the left.
- the drive mode which is also referred to as engine operating state
- non-compressible fluid is removed from the high-pressure accumulator 34, wherein the accumulator spring 44 is relaxed behind the first piston 37 and thereby stabilizes the high pressure.
- FIG. 3 shows a hydraulic accumulator device 52 with a storage housing 54 and a common receiving space 55 for a high-pressure accumulator chamber 64 and a low-pressure accumulator chamber 65 for non-compressible fluid.
- the two storage spaces 64, 65 for the non-compressible fluid are hydraulically separated from each other by a separator 66.
- the separating device 66 comprises a piston 67, which is movable in the common receiving space 55 back and forth.
- a memory spring 74 is arranged or clamped.
- a compensation volume 80 is contained in the form of a gas bubble, which is filled with a gas such as nitrogen.
- the embodiment shown in Figure 3 works in a similar manner as the embodiment shown in Figure 2.
- dashed lines 51; 81 a limit is indicated in FIGS. 2 and 3, which separates a low-pressure region from a high-pressure region. Due to the lower pressure load, the low-pressure region can be designed differently with respect to the materials used and / or wall thicknesses of the storage housing 54 than the high-pressure region.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010800091299A CN102333964A (zh) | 2009-02-24 | 2010-01-25 | 机动车液压系统 |
EP10700880A EP2401512A1 (de) | 2009-02-24 | 2010-01-25 | Mobilhydrauliksystem |
US13/203,156 US20120042644A1 (en) | 2009-02-24 | 2010-01-25 | Mobile hydraulic system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009001107A DE102009001107A1 (de) | 2009-02-24 | 2009-02-24 | Mobilhydrauliksystem |
DE102009001107.2 | 2009-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010097256A1 true WO2010097256A1 (de) | 2010-09-02 |
Family
ID=41786304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/050781 WO2010097256A1 (de) | 2009-02-24 | 2010-01-25 | Mobilhydrauliksystem |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120042644A1 (de) |
EP (1) | EP2401512A1 (de) |
CN (1) | CN102333964A (de) |
DE (1) | DE102009001107A1 (de) |
WO (1) | WO2010097256A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014137095A (ja) * | 2013-01-16 | 2014-07-28 | Nobuyuki Sugimura | ばね式アキュムレータ |
AU2014232558A1 (en) | 2013-03-15 | 2015-10-15 | Stored Energy Solutions Inc. | Hydraulic hybrid system |
CN104455901B (zh) * | 2014-12-12 | 2018-01-16 | 北京航空航天大学 | 双谐振式流体脉动衰减器 |
FR3060533A1 (fr) * | 2016-12-19 | 2018-06-22 | Safran Aircraft Engines | Accumulateur sur une ligne de carburant d'aeronef |
CA3037204A1 (en) * | 2016-12-21 | 2018-06-28 | A & A International, Llc | Renewable energy and waste heat harvesting system |
CN116066428B (zh) * | 2023-04-06 | 2023-07-21 | 浙江大学 | 一种输出功率可调的液压机器人储能装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986383A (en) * | 1986-12-29 | 1991-01-22 | Evans Kenneth W | Vehicle braking system for converting and storing the momentum of a vehicle and using the stored energy to re-accelerate the vehicle |
DE4212542A1 (de) * | 1992-04-15 | 1993-10-21 | Kurt Huber | Bremsenergie-Rückführungs-System |
DE4218402A1 (de) * | 1992-06-04 | 1993-12-09 | Kugelfischer G Schaefer & Co | Antiblockierregelsystem |
JP2007120696A (ja) * | 2005-10-31 | 2007-05-17 | Kayaba Ind Co Ltd | タンクにブラダをセッティングする方法、並びにタンク装置及び流体圧駆動ユニット |
WO2007124882A1 (de) * | 2006-04-27 | 2007-11-08 | Bosch Rexroth Ag | Hydraulikfluidspeicher mit integrierter hochdruck- und niederdruckkammer |
DE102006060078A1 (de) | 2006-12-19 | 2008-06-26 | Robert Bosch Gmbh | Kolbenspeicher für Fahrzeuge |
-
2009
- 2009-02-24 DE DE102009001107A patent/DE102009001107A1/de not_active Withdrawn
-
2010
- 2010-01-25 US US13/203,156 patent/US20120042644A1/en not_active Abandoned
- 2010-01-25 CN CN2010800091299A patent/CN102333964A/zh active Pending
- 2010-01-25 EP EP10700880A patent/EP2401512A1/de not_active Withdrawn
- 2010-01-25 WO PCT/EP2010/050781 patent/WO2010097256A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986383A (en) * | 1986-12-29 | 1991-01-22 | Evans Kenneth W | Vehicle braking system for converting and storing the momentum of a vehicle and using the stored energy to re-accelerate the vehicle |
DE4212542A1 (de) * | 1992-04-15 | 1993-10-21 | Kurt Huber | Bremsenergie-Rückführungs-System |
DE4218402A1 (de) * | 1992-06-04 | 1993-12-09 | Kugelfischer G Schaefer & Co | Antiblockierregelsystem |
JP2007120696A (ja) * | 2005-10-31 | 2007-05-17 | Kayaba Ind Co Ltd | タンクにブラダをセッティングする方法、並びにタンク装置及び流体圧駆動ユニット |
WO2007124882A1 (de) * | 2006-04-27 | 2007-11-08 | Bosch Rexroth Ag | Hydraulikfluidspeicher mit integrierter hochdruck- und niederdruckkammer |
DE102006060078A1 (de) | 2006-12-19 | 2008-06-26 | Robert Bosch Gmbh | Kolbenspeicher für Fahrzeuge |
Also Published As
Publication number | Publication date |
---|---|
US20120042644A1 (en) | 2012-02-23 |
CN102333964A (zh) | 2012-01-25 |
EP2401512A1 (de) | 2012-01-04 |
DE102009001107A1 (de) | 2010-08-26 |
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