WO2008081019A1 - Regelung einer luftfeder - Google Patents
Regelung einer luftfeder Download PDFInfo
- Publication number
- WO2008081019A1 WO2008081019A1 PCT/EP2008/050017 EP2008050017W WO2008081019A1 WO 2008081019 A1 WO2008081019 A1 WO 2008081019A1 EP 2008050017 W EP2008050017 W EP 2008050017W WO 2008081019 A1 WO2008081019 A1 WO 2008081019A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- air spring
- compressed air
- rail vehicle
- volume flow
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/14—Side bearings
- B61F5/144—Side bearings comprising fluid damping devices
Definitions
- the invention relates to a device with an air spring for supporting a load on a bogie of a rail vehicle, a compressed air supply, which is pneumatically connected to the air spring via an air spring valve for venting or for filling the air spring with compressed air, and a control unit for adjusting the air volume and / or the air pressure in the air spring, wherein the airing and venting of the air spring takes place via at least one compressed air line.
- the invention further relates to a method for controlling the air pressure and air volume of an air spring of a slide ⁇ nenEnglishes, wherein a control unit accesses a Lucasfe ⁇ derventil that communicates with the air spring and a pressure ⁇ air supply, at least one compressed air ⁇ line to Be - And bleeding the air spring is provided.
- the suspension of a rail vehicle for Wegbeför ⁇ tion usually comprises a mechanically configured primary spring and a secondary air spring.
- the air spring allows in addition to the additional damping and a level control of the car body to compensate for different loads through which the suspension is pressed together different degrees.
- the prior art device has the disadvantage that at high speeds of the rail vehicle centrifugal ⁇ forces affect the level of the car body with respect to the bogie dynamic. When passing through sinks, the level of the car body is lowered, for example, dynamically, so that the air spring valve tracks air to the lowering to counteract the car body.
- the invention is based on the cited prior art, the task of avoiding unnecessary ventilation of the air spring.
- the invention achieves this object by means for limiting the volume flow in at least one of the compressed air lines as a function of the speed of the rail vehicle.
- means are provided for limiting the air flow in one or more of the compressed air lines, which serve for venting or for venting the air spring in their regulation.
- This limitation depends on the speed of the rail vehicle.
- the Be ⁇ limiting means associated compressed air line and thus the flow of compressed air is more limited than in slow driving.
- the dynamic loads when driving through depressions or crests and thus the described unnecessary ventilation of the air spring are greater than at slow speeds. Due to the stronger limitation of the volume flow in the compressed air lines, the unnecessary ventilation and de-aerating can therefore be reduced ⁇ . In other words, the regulation is slower.
- Air suspension valve is not able to discharge a significant amount of compressed air, as in the case of an electronic control unit previously reported measurement sensors of the control unit that the level of the car body after the dome, for example, has returned to its normal height.
- the venting and venting is therefore limited or even completely avoided within the scope of the invention.
- the means for limiting the volume flow are adapted to narrowing of their associated compressed-air line as soon as the rail vehicle exceeds a Schwellenge ⁇ speed.
- This form of Volumenstrombe ⁇ limitation is one of the simplest and least expensive embodiments of the invention.
- the constriction of the compressed air line can take place with any desired valves known to those skilled in the art, so that they need not be discussed in greater detail here.
- Threshold speed exceeds. Deviating from this Kgs ⁇ NEN be selected in the context of the invention, more complicated method of detecting the state in which the rail vehicle has taken up a speed at which it comes to unwanted and unnecessary unlocking or ventilating the air spring.
- the evaluation unit has a logic implemented in it, which determines this state on the basis of the measured values and the predetermined desired values.
- the measuring sensors comprise door sensors, wherein the door sensors are set up at an opening of the doors of the rail vehicle for generating a release signal.
- the measuring sensors and / or the release signal need not be provided separately. Rather, it is in Scope of the invention expedient to resort to existing measuring sensors or enable signals.
- the release signal causes, for example, that a compressed air line is shut off for venting by a suitable control valve, so that a flow through the compressed air line is completely prevented. On a level control while driving is completely omitted according to this advantageous embodiment of the device according to the invention.
- control unit is a mechanical control unit.
- a mechanical regulator which is connected Lucasfe ⁇ derventil me ⁇ mechanically, for example via a lever mechanism in parallel with the air spring with a car body of a rail vehicle.
- the car body is supported by a primary spring and the air spring on bogies.
- the said springs are stronger compressed in the event of an additional load on the car body, so that there is ei ⁇ ner lowering of the car body.
- This lowering movement is introduced via the said lever mechanism in the air spring valve, so that this is suitably controlled and provides for aeration of the air spring with an increase in the car body in the wake.
- the load-related lowering of the car body can be compensated.
- control unit is an electronic control unit having the measuring ⁇ sensors for detecting an air pressure and / or air volume of the air spring.
- the control unit also has an appropriate logic, for example in the form of a software, which is converted ⁇ relies on a programmable computing unit.
- the measuring sensors provide the software with actual values which are compared with corresponding setpoints.
- a suitable controller for example, e- lektronisch responsive air spring valve.
- the air spring valve via a drain pipe is connected with the outside atmosphere, wherein said With ⁇ tel for limiting the volumetric flow limit the flow of the exhaust pipe.
- the limitation of the volume flow in the drain pipe supports the Be ⁇ limitation of the compressed air line for venting the air spring.
- limiting the volume flow of the outlet pipe alone is sufficient to prevent unnecessary venting of the air spring.
- the invention solves this problem on the basis of the method mentioned above in that the volume flow in at least one of the compressed air lines is limited as a function of the speed of the rail vehicle.
- the flow is interrupted in the respective compressed air line, when the speed of the rail vehicle exceeds a Schwellengeschwin ⁇ speed.
- this is a particularly cost-effective variant of the method according to the invention. Notwithstanding, however, other evaluation methods are possible from the comparing VELOCITY ⁇ ness that encounter a condition in which there is an unnecessary and venting the air spring.
- the volume flow in the associated compressed air line is limited to a smaller value. According to this advantageous further development, at least a certain level control is possible even at higher speeds, and leaks in the air suspension system can be compensated. but unnecessary venting is avoided as far as possible.
- the air flow in the associated compressed air line is dynamically adapted to the speed of the rail vehicle.
- a valve is provided which allows a continuous constriction of the compressed air line or a graduated constriction, so that certain constriction stages can be selectively controlled.
- Embodiment of the method according to the invention allows a gradual adaptation of the air spring control to the high-speed case, in which it can come to the largest unnecessarily saucege ⁇ surrounded volumes of compressed air. At low speeds, the ride comfort is maintained.
- the volume flow is limited as soon as a door release signal indicates that all doors of the vehicle are closed and thus the static load on the air spring by the boarding or disembarking passengers on the train no longer changes.
- the level control is then canceled according to this embodiment immediately after leaving the station.
- the volume flow is limited as soon as the rail vehicle exceeds a previously defined threshold speed.
- a level control is then provided, for example, only below 100 km / h.
- the volume flow of the associated compressed air line is completely interrupted.
- Figure shows a schematic representation of awhosbei ⁇ game of the device according to the invention.
- the figure shows schematically an embodiment of he ⁇ inventive device 1, which has an air spring 2, which consists of two parts and which is attached to a bogie not visible in the figure.
- an air spring 2 which consists of two parts and which is attached to a bogie not visible in the figure.
- a primary spring system which consists for example of coil springs, for springs and steaming of the car body on the bogie.
- the air spring 2 communicates by means of a compressed air line 3 with a compressed air supply 4, which is indicated only schematically in the figure.
- the payload or load of the car body is detected by means of a measuring sensor 5, with which the pressure in the air spring can be determined. About the pressure can be closed on the payload of the car body back.
- an air spring valve 6 is provided, wherein the air spring 2 via the starting pipe 8 as additional
- the air spring valve 6 is connected to a control unit, not shown in the figure, with which also the measuring sensor 5 is in communication.
- a level control allows so that, for example, at an increased payload of the car body, a decrease in the level of the car ⁇ box can be compensated as a result of the depression of the primary spring.
- the control unit supplies the pressure value provided by the measuring sensor 5 to a logic stored in the control unit, which causes an increase in the pressure by means of the air ⁇ spring valve 6 based on set values and the pressure value.
- control unit is designed purely me ⁇ chanically, the air suspension valves are mechanically connected via a lever and a linkage parallel to the air spring with the car ⁇ box.
- the Luftfe ⁇ derventil which then vents the air spring loading Bezie ⁇ hung example.
- control unit is connected to shut-off valves 7, which are arranged both in the compressed air line 3 and in the drain pipe 8. Controls the Rege ⁇ averaging unit, the shut-off valves with a shut-off signal to 7, close the shut-off valves 7, the compressed air lines 3 and 8, so that the pneumatic connection of the air spring 2 is interrupted with the pressurized air supply 4 and with the external atmosphere.
- evaluation ⁇ unit is connected to a door sensor, not shown figuratively, which transmits the state of the doors of the rail vehicle, ie "doors open” or “doors closed” by appropriate signals to the control unit.
- the control ⁇ unit also controls due to a logic stored in her the shut-off valves 7 to open when the Mossenso ⁇ ren indicate that the doors of the rail vehicle are open.
- the compressed air control is the air spring 2 allows and a level control provided by the control unit.
- the control unit controls the Ab ⁇ -off valves 7, however, for shutting off the compressed air lines 3 and 8, so that an unnecessary level control, and thus unnecessary inflation and deflation of the air spring 2 is prevented.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008800016479A CN101578215B (zh) | 2007-01-03 | 2008-01-02 | 空气弹簧的调节设备及方法 |
EP08701204A EP2114744B1 (de) | 2007-01-03 | 2008-01-02 | Regelung einer luftfeder |
US12/522,017 US8196524B2 (en) | 2007-01-03 | 2008-01-02 | Closed-loop control of a pneumatic spring |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007001342.8 | 2007-01-03 | ||
DE102007001342A DE102007001342A1 (de) | 2007-01-03 | 2007-01-03 | Regelung einer Luftfeder |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008081019A1 true WO2008081019A1 (de) | 2008-07-10 |
Family
ID=39204831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/050017 WO2008081019A1 (de) | 2007-01-03 | 2008-01-02 | Regelung einer luftfeder |
Country Status (6)
Country | Link |
---|---|
US (1) | US8196524B2 (de) |
EP (1) | EP2114744B1 (de) |
CN (1) | CN101578215B (de) |
DE (1) | DE102007001342A1 (de) |
RU (1) | RU2462380C2 (de) |
WO (1) | WO2008081019A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102510811A (zh) * | 2009-05-29 | 2012-06-20 | 庞巴迪动力产品公司 | 车辆悬架和气动系统 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102005849B (zh) * | 2010-11-01 | 2013-04-17 | 河北安旭专用汽车有限公司 | 车载发电机空气悬挂系统 |
DE102011052703B4 (de) * | 2011-08-15 | 2020-07-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Steuergerät einer Niveauregelung und Niveauregulierungsanlage |
CN104676243B (zh) * | 2015-03-24 | 2017-04-19 | 隆昌山川精密焊管有限责任公司 | 气弹簧分级充气方法及其工装 |
EP3165270B1 (de) * | 2015-11-03 | 2018-07-18 | Carbon Air Limited | Temperaturgesteuerte druckeinstellung pneumatischer strukturen |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1455140A1 (de) | 1964-02-25 | 1969-04-30 | Knorr Bremse Gmbh | Luftfederung fuer Fahrzeuge,insbesondere Schienenfahrzeuge |
EP0354438A1 (de) | 1988-08-02 | 1990-02-14 | IVECO FIAT S.p.A. | Luftfederung mit konstanter Lage für Kraftfahrzeuge |
DE19544622C1 (de) | 1995-11-30 | 1996-09-05 | Grau Gmbh | Steueranlage für ein luftgefedertes Fahrzeug mit Niveauregelung |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US4091738A (en) * | 1976-02-18 | 1978-05-30 | Rockwell International Corporation | Stabilized fluid railway car suspension |
SU1505802A1 (ru) | 1988-02-01 | 1989-09-07 | Минский автомобильный завод | Гидропневматическа подвеска транспортного средства |
SU1551566A1 (ru) | 1988-06-03 | 1990-03-23 | МВТУ им.Н.Э.Баумана | Система поперечной устойчивости транспортного средства с гидропневматической подвеской |
JPH02106419A (ja) * | 1988-10-14 | 1990-04-18 | Fuji Heavy Ind Ltd | 自動車の車高調整装置 |
DE4013673A1 (de) * | 1990-04-27 | 1991-10-31 | Man Nutzfahrzeuge Ag | Omnibus, insbesondere niederflurbus |
RU2001785C1 (ru) | 1991-05-21 | 1993-10-30 | Акционерное общество "Метровагонмаш" | Система автоматического регулировани положени кузова транспортного средства на пневматических рессорах |
DE4234523A1 (de) * | 1992-10-13 | 1994-04-14 | Knorr Bremse Ag | Niveau- und Neigungssteuerung eines Wagenkastens |
CN2446002Y (zh) * | 2000-09-19 | 2001-09-05 | 胡起凤 | 一种铁路车辆主动控振转向架 |
US6550394B1 (en) * | 2002-03-11 | 2003-04-22 | Buckeye Steel Castings Company | Retractable auxiliary bumper for hydraulic or pneumatic railway suspensions |
US6883810B2 (en) * | 2002-11-04 | 2005-04-26 | Volvo Trucks North America, Inc. | Air spring stiffness controller |
DE10330432B4 (de) | 2003-07-04 | 2007-06-21 | Continental Aktiengesellschaft | Verfahren zur Höhenregelung für ein Fahrzeug |
KR20050010187A (ko) | 2003-07-18 | 2005-01-27 | 현대자동차주식회사 | 자동차의 닐링 장치 |
CN100336690C (zh) * | 2003-12-31 | 2007-09-12 | 北京控股磁悬浮技术发展有限公司 | 一种新型的磁悬浮列车空气悬架高度控制装置 |
KR101001267B1 (ko) | 2004-11-22 | 2010-12-14 | 주식회사 만도 | 에어 서스펜션 및 전자제어 서스펜션 장치 |
JP2006327391A (ja) * | 2005-05-26 | 2006-12-07 | Central Japan Railway Co | 鉄道車両の車体傾斜制御システム |
-
2007
- 2007-01-03 DE DE102007001342A patent/DE102007001342A1/de not_active Ceased
-
2008
- 2008-01-02 CN CN2008800016479A patent/CN101578215B/zh active Active
- 2008-01-02 EP EP08701204A patent/EP2114744B1/de active Active
- 2008-01-02 WO PCT/EP2008/050017 patent/WO2008081019A1/de active Application Filing
- 2008-01-02 US US12/522,017 patent/US8196524B2/en not_active Expired - Fee Related
- 2008-01-02 RU RU2009129539/11A patent/RU2462380C2/ru active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1455140A1 (de) | 1964-02-25 | 1969-04-30 | Knorr Bremse Gmbh | Luftfederung fuer Fahrzeuge,insbesondere Schienenfahrzeuge |
EP0354438A1 (de) | 1988-08-02 | 1990-02-14 | IVECO FIAT S.p.A. | Luftfederung mit konstanter Lage für Kraftfahrzeuge |
DE19544622C1 (de) | 1995-11-30 | 1996-09-05 | Grau Gmbh | Steueranlage für ein luftgefedertes Fahrzeug mit Niveauregelung |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102510811A (zh) * | 2009-05-29 | 2012-06-20 | 庞巴迪动力产品公司 | 车辆悬架和气动系统 |
CN102510811B (zh) * | 2009-05-29 | 2015-05-06 | 庞巴迪动力产品公司 | 车辆悬架和气动系统 |
US9283823B2 (en) | 2009-05-29 | 2016-03-15 | Bombardier Recreational Products Inc. | Vehicle suspension and pneumatic systems |
Also Published As
Publication number | Publication date |
---|---|
CN101578215B (zh) | 2011-07-06 |
RU2009129539A (ru) | 2011-02-10 |
DE102007001342A1 (de) | 2008-07-17 |
US20100102520A1 (en) | 2010-04-29 |
CN101578215A (zh) | 2009-11-11 |
EP2114744B1 (de) | 2012-08-01 |
EP2114744A1 (de) | 2009-11-11 |
RU2462380C2 (ru) | 2012-09-27 |
US8196524B2 (en) | 2012-06-12 |
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