DE102013212978A1 - Air suspension module - Google Patents
Air suspension module Download PDFInfo
- Publication number
- DE102013212978A1 DE102013212978A1 DE102013212978.5A DE102013212978A DE102013212978A1 DE 102013212978 A1 DE102013212978 A1 DE 102013212978A1 DE 102013212978 A DE102013212978 A DE 102013212978A DE 102013212978 A1 DE102013212978 A1 DE 102013212978A1
- Authority
- DE
- Germany
- Prior art keywords
- air spring
- volume
- valve
- additional
- additional volume
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 230000035939 shock Effects 0.000 claims abstract description 14
- 239000006096 absorbing agent Substances 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
- B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
- B60G15/14—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper the damper being connected to the stub axle and the spring being arranged around the damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/0416—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics regulated by varying the resiliency of hydropneumatic suspensions
- B60G17/0432—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics regulated by varying the resiliency of hydropneumatic suspensions by varying the number of accumulators connected to the hydraulic cylinder
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/049—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall multi-chamber units
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/05—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
- B60G2202/314—The spring being a pneumatic spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/204—Pressure regulating valves for air-springs
- B60G2500/2041—Pressure regulating valves for air-springs for variable volume air springs, e.g. using accumulators as expansion chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/22—Spring constant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Die Erfindung betrifft ein Luftfedermodul bestehend aus einer Luftfeder 1 und einem Stoßdämpfer 2 zur Federung und Dämpfung von Schwingungen eines Kraftfahrzeugfahrwerkes, mit – wenigstens zwei mit Druckluft gefüllten Arbeitsräumen, welche über wenigstens ein Ventil verbindbar sind, – einem Luftfederdeckel 3, – einem daran befestigten luftdichten Rollbalg 5, welcher einen mit Druckluft gefüllten ersten Arbeitsraum 6 mit einem Hauptvolumen V0 mindestens teilweise begrenzt, – einem Abrollkolben 7, welcher an einem Zylinderrohr 8 des Stoßdämpfers 2 befestigt ist und auf dem der Rollbalg 5 abrollt. Erfindungsgemäß wird vorgeschlagen, dass ein zweiter Arbeitsraum 14 mit einem ersten Zusatzvolumen ZV1 sowie ein dritter Arbeitsraum 15 mit einem zweiten Zusatzvolumen ZV2 vorgesehen sind und dass über wenigstens ein schaltbares Ventil 16, 17; 34 wenigstens drei Volumenzustände schaltbar sind.The invention relates to an air spring module consisting of an air spring 1 and a shock absorber 2 for the suspension and damping of vibrations of a motor vehicle chassis, with - at least two working spaces filled with compressed air, which can be connected via at least one valve, - an air spring cover 3, - an airtight attached to it Rolling bellows 5, which at least partially delimits a first working space 6 filled with compressed air with a main volume V0, - a rolling piston 7, which is fastened to a cylinder tube 8 of the shock absorber 2 and on which the rolling bellows 5 rolls. It is proposed according to the invention that a second work space 14 with a first additional volume ZV1 and a third work space 15 with a second additional volume ZV2 are provided and that at least one switchable valve 16, 17; 34 at least three volume states are switchable.
Description
Die Erfindung betrifft ein Luftfedermodul bestehend aus einer Luftfeder und einem Stoßdämpfer zur Federung und Dämpfung von Schwingungen eines Kraftfahrzeugfahrwerkes, mit wenigstens zwei mit Druckluft gefüllten Arbeitsräumen, welche über wenigstens ein Ventil verbindbar sind, einem Luftfederdeckel, einem daran befestigten luftdichten Rollbalg, welcher einen mit Druckluft gefüllten ersten Arbeitsraum mit einem Hauptvolumen mindestens teilweise begrenzt, einem Abrollkolben, welcher an einem Zylinderrohr des Stoßdämpfers befestigt ist und auf dem der Rollbalg abrollt.The invention relates to an air spring module consisting of an air spring and a shock absorber for suspension and damping of vibrations of a motor vehicle undercarriage, with at least two working spaces filled with compressed air, which are connectable via at least one valve, an air spring cover, attached thereto airtight rolling bellows, which one with compressed air filled first working space with a main volume at least partially limited, a rolling piston, which is attached to a cylinder tube of the shock absorber and on which the rolling bellows rolls.
Bei grundsätzlich bekannten Luftfedermodulen mit mehreren, jeweils ein Volumen (Volumen V1 bis Vi) aufweisenden Arbeitsräumen müssen vom Gesamtluftfedervolumen einzelne Volumen (Vgesamt = ΣVi) durch eine Trennwand und geeignete Schaltventile abgeteilt werden. In basically known air spring modules having a plurality of work spaces each having a volume (volume V 1 to V i ), individual volumes (V total = ΣVi) of the total air spring volume must be divided by a partition wall and suitable switching valves.
So ist beispielsweise aus der
Bei neueren Luftfederentwicklungen bestehen Anforderungen dahingehend, dass weitere Zwischenmodi zwischen Sport und Komfort geschaltet werden können sollen. In recent air spring developments, there are requirements that additional intermediate modes between sport and comfort should be able to be switched.
Aufgabe der Erfindung ist es, ein Luftfedermodul mit mehreren Modi und mit einer geeigneten Schaltung der Volumen bereitzustellen.The object of the invention is to provide an air spring module with several modes and with a suitable circuit of the volume.
Die Aufgabe wird durch das Luftfedermodul mit den Merkmalen des Anspruchs 1 gelöst. Weitere vorteilhafte Ausbildungen sind in den Unteransprüchen offenbart.The object is achieved by the air spring module with the features of claim 1. Further advantageous embodiments are disclosed in the subclaims.
Das erfindungsgemäße Luftfedermodul ist dadurch gekennzeichnet, dass ein zweiter Arbeitsraum mit einem ersten Zusatzvolumen sowie ein dritter Arbeitsraum mit einem zweiten Zusatzvolumen vorgesehen sind und dass über wenigstens ein schaltbares Ventil wenigstens drei Volumenzustände schaltbar sind. Hierdurch sind wenigstens drei verschiedene Modi realisierbar.The air spring module according to the invention is characterized in that a second working space with a first additional volume and a third working space with a second additional volume are provided and that at least three volume states can be switched via at least one switchable valve. As a result, at least three different modes can be realized.
Gemäß einer vorteilhaften Ausführungsform der Erfindung sind das erste und das zweite Zusatzvolumen parallel zum Hauptvolumen geschaltet vorgesehen.According to an advantageous embodiment of the invention, the first and the second additional volume are provided connected in parallel to the main volume.
Zur Parallelschaltung der beiden Zusatzvolumen sind vorzugsweise zwei 2/2-Wegeventile vorgesehen. For parallel connection of the two additional volume preferably two 2/2-way valves are provided.
Eine besonders vorteilhafte Ausführungsform sieht vor, dass zur Parallelschaltung der beiden Zusatzvolumen ein 3/3-Wegeventil vorgesehen ist. Hierdurch können neben Kostenund Energieeinsparungen auch eine Gewichtseinsparung erzielt werden.A particularly advantageous embodiment provides that a 3/3-way valve is provided for the parallel connection of the two additional volume. This can be achieved in addition to cost and energy savings and weight savings.
Eine andere vorteilhafte Ausführungsform der Erfindung sieht vor, dass das erste und das zweite Zusatzvolumen zum Hauptvolumen in Reihe geschaltet vorgesehen sind. Vorteil hierbei ist, dass jeweils nur ein Ventil angesteuert werden muss. Das spart Energie und vereinfacht die Ansteuerung deutlich. Another advantageous embodiment of the invention provides that the first and the second additional volume to the main volume are provided connected in series. The advantage here is that in each case only one valve must be controlled. This saves energy and simplifies control significantly.
Zur Reihenschaltung des Hauptvolumens mit den beiden Zusatzvolumen sind dabei vorzugsweise zwei 2/2-Wegeventile vorgesehen. For the series connection of the main volume with the two additional volume preferably two 2/2-way valves are provided.
Weitere Merkmale, Vorteile und Anwendungsmöglichkeiten der Erfindung gehen aus den Unteransprüchen und der nachfolgenden Beschreibung von Ausführungsbeispielen sowie anhand der Zeichnung hervor. Es zeigt jeweils stark:Other features, advantages and applications of the invention will become apparent from the dependent claims and the following description of exemplary embodiments and with reference to the drawings. It shows strongly:
Das Luftfedermodul besteht bekanntermaßen aus einer Luftfeder
Ein im Luftfederdeckel
Um zwischen verschiedenen Modi des Luftfedermoduls umschalten zu können, weist die Luftfeder
Das gezeigte Luftfedermodul weist zwei Ventile
Über die Ventile
Der zweite und der dritte Arbeitsraum
Der Abrollkolben
Wie aus
Eine aus Kunststoff vorgesehene Kippsicherung
Innen- und Außenrohr
Das Kolbenoberteil
Nach der Montage des Bodens
Auf diese Art und Weise wird ein stabiler Abrollkolben
In der dargestellten Form ist der Boden
Nachfolgend werden verschiedene Ausführungen zur Aufteilung und Schaltung der Volumen V0, ZV1 und ZV2 beschrieben.Different versions for the division and switching of the volumes V0, ZV1 and ZV2 are described below.
Dabei zeigt
Es ergeben sich somit vier mögliche Volumenzustände:
V0
V0 + ZV1
V0 + ZV2
V0 + ZV1 + ZV2This results in four possible volume states:
V0
V0 + ZV1
V0 + ZV2
V0 + ZV1 + ZV2
Eine besonders vorteilhafte Ausführungsform sieht vor, dass zur Parallelschaltung der beiden Zusatzvolumen ZV1 und ZV2 ein 3/3-Wegeventil vorgesehen ist. Hierdurch können neben Kosten- und Energieeinsparungen auch eine Kosteneinsparung erzielt werden.A particularly advantageous embodiment provides that a 3/3-way valve is provided for the parallel connection of the two additional volume ZV1 and ZV2. This can be achieved in addition to cost and energy savings and cost savings.
Eine weitere in
V0
V0 + ZV1 oder V0 + ZV2
V0 + ZV1 + ZV2 Another in
V0
V0 + ZV1 or V0 + ZV2
V0 + ZV1 + ZV2
Somit sind in Summe drei Volumenzustände umsetzbar. Das Verbinden des Hauptvolumens V0 kann mit einem oder beiden Zusatzvolumen ZV1, ZV2 geschehen. Ein Verbinden der Zusatzvolumen ZV1, ZV2 unabhängig voneinander ist nicht möglich. Daher muss im Vorfeld in der geometrischen Gestaltung der Volumen im Kolben entschieden werden, welches der Volumen einzeln geschaltet werden kann. V0 sowie ZV1 und ZV2 müssen ferner geometrisch so angeordnet werden, dass eine Verbindung am Verstellsitz des Ventils
Der Vorteil liegt in der Verwendung von nur einem Ventil
Eine andere Schaltung gemäß
Das Zusatzvolumen ZV1 ist einerseits über das Ventil
Als Resultat ergeben sich folgende Volumenzustände:
Vorteil dieser Ausführung ist, dass jeweils nur ein Ventil angesteuert werden muss. Das spart Energie und vereinfacht die Ansteuerung deutlich. Advantage of this design is that in each case only one valve must be controlled. This saves energy and simplifies control significantly.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Luftfeder air spring
- 22
- Stoßdämpfer shock absorber
- 33
- Luftfederdeckel Air spring cover
- 44
- Klemmelement clamping element
- 55
- Rollbalg bellows
- 66
- Arbeitsraum working space
- 77
- Abrollkolben roll-off
- 88th
- Zylinderrohr cylinder tube
- 99
- Dämpfergabel Shock fork
- 1010
- Kolbenstange piston rod
- 1111
- Zusatzfeder additional spring
- 1212
- Führungsring guide ring
- 1313
- Dämpferlager top mounts
- 1414
- Arbeitsraum working space
- 1515
- Arbeitsraum working space
- 1616
- Ventil Valve
- 1717
- Ventil Valve
- 1818
- Zwischenboden false floor
- 1919
- Außenrohr outer tube
- 2020
- Innenrohr inner tube
- 2121
- Klemmelement clamping element
- 2222
- Kolbenoberteil Piston crown
- 2323
- Kolbenunterteil Piston part
- 2424
- Boden ground
- 2525
- Kippsicherung tilt protection
- 2626
- Sicke Beading
- 2727
- Ventilsitz valve seat
- 2828
- Ventilsitz valve seat
- 2929
- Ventilaufnahme valve receiving
- 3030
- Ventilaufnahme valve receiving
- 3131
- Delle dent
- 3232
- Beule bump
- 3333
- Dichtung poetry
- 3434
- Ventil Valve
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10200632 A1 [0003] DE 10200632 A1 [0003]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013212978.5A DE102013212978A1 (en) | 2012-10-18 | 2013-07-03 | Air suspension module |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012020389 | 2012-10-18 | ||
DE102012020389.6 | 2012-10-18 | ||
DE102013212978.5A DE102013212978A1 (en) | 2012-10-18 | 2013-07-03 | Air suspension module |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013212978A1 true DE102013212978A1 (en) | 2014-04-24 |
Family
ID=48793198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102013212978.5A Pending DE102013212978A1 (en) | 2012-10-18 | 2013-07-03 | Air suspension module |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102013212978A1 (en) |
WO (1) | WO2014060123A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019074133A (en) * | 2017-10-16 | 2019-05-16 | トヨタ自動車株式会社 | Suspension device |
FR3090499A1 (en) * | 2018-12-21 | 2020-06-26 | Psa Automobiles Sa | PNEUMATIC SUSPENSION WITH TWO OPERATING MODES WITH CASCADE AIR CELLS |
FR3090500A1 (en) * | 2018-12-21 | 2020-06-26 | Psa Automobiles Sa | PNEUMATIC SUSPENSION WITH TWO OPERATING MODES WITH PARALLEL AIR CELLS |
DE102019104714A1 (en) * | 2019-02-25 | 2020-08-27 | Vibracoustic Ag | Air suspension module |
DE102019125061A1 (en) * | 2019-09-18 | 2021-03-18 | Wabco Europe Bvba | Bistable solenoid valve for an air suspension system of a vehicle and method for controlling this solenoid valve |
CN114151492A (en) * | 2021-10-26 | 2022-03-08 | 岚图汽车科技有限公司 | Strut type double-cavity membrane type air spring |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017122312A1 (en) * | 2017-09-26 | 2019-03-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Control valve for a multi-chamber air spring |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3046003A (en) * | 1959-07-16 | 1962-07-24 | Midland Ross Corp | Fluid spring |
DE1216126B (en) * | 1961-12-30 | 1966-05-05 | Bosch Gmbh Robert | Hydraulic telescopic shock absorbers connected to a suspension system, especially for vehicles |
EP0000287A1 (en) * | 1977-06-30 | 1979-01-10 | AUTóIPARI KUTATó INTéZET | A hydro-pneumatic spring suspension strut for motor vehicles |
EP0166702A2 (en) * | 1984-06-27 | 1986-01-02 | FIAT AUTO S.p.A. | Variable-stiffnes air spring, particularly for motor vehicle suspensions |
JPH07167189A (en) * | 1993-12-15 | 1995-07-04 | Toyota Motor Corp | Air suspension device |
DE10050028A1 (en) * | 1999-10-15 | 2001-05-10 | Phoenix Ag | Pneumatic suspension for front axle of motor vehicle; has articulated component on air-spring cover in area near connection of axial or transverse elastomer air-spring bellows |
US6427986B1 (en) * | 1999-03-31 | 2002-08-06 | Tokico, Ltd. | Air suspension apparatus |
DE10200632A1 (en) | 2002-01-10 | 2003-07-31 | Thyssen Krupp Bilstein Gmbh | Air suspension strut for motor vehicles |
DE10236621A1 (en) * | 2002-08-09 | 2004-03-04 | Daimlerchrysler Ag | Air spring system for McPherson suspension strut for automobile has air spring head provided with separate chambers selectively coupled for determining spring characteristics |
DE10314621A1 (en) * | 2003-04-01 | 2004-11-04 | Carl Freudenberg Kg | Pneumatic spring damper unit |
DE102004021586A1 (en) * | 2004-05-03 | 2005-12-01 | Continental Aktiengesellschaft | air spring |
DE102004060778A1 (en) * | 2004-12-17 | 2006-06-29 | Continental Aktiengesellschaft | Pneumatic spring- and damper-unit has overflow throttles formed and arranged on cylinder housing and separating piston such that both rebound and spring deflection of spring- and damper-unit flow gas in only a certain flowing direction |
DE102006055483A1 (en) * | 2006-11-24 | 2008-05-29 | Daimler Ag | Hydropneumatic strut |
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JPS59159440A (en) * | 1983-02-25 | 1984-09-10 | Nissan Motor Co Ltd | Gaseous spring device |
JPS61135808A (en) * | 1984-12-06 | 1986-06-23 | Toyota Motor Corp | Air suspension |
US5255935A (en) * | 1990-03-09 | 1993-10-26 | Nippondenso Co., Ltd. | Air suspension system |
US6698730B2 (en) * | 2001-10-04 | 2004-03-02 | Bfs Diversified Products, Llc | Dual rate air spring |
-
2013
- 2013-07-03 DE DE102013212978.5A patent/DE102013212978A1/en active Pending
- 2013-07-03 WO PCT/EP2013/064027 patent/WO2014060123A1/en active Application Filing
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3046003A (en) * | 1959-07-16 | 1962-07-24 | Midland Ross Corp | Fluid spring |
DE1216126B (en) * | 1961-12-30 | 1966-05-05 | Bosch Gmbh Robert | Hydraulic telescopic shock absorbers connected to a suspension system, especially for vehicles |
EP0000287A1 (en) * | 1977-06-30 | 1979-01-10 | AUTóIPARI KUTATó INTéZET | A hydro-pneumatic spring suspension strut for motor vehicles |
EP0166702A2 (en) * | 1984-06-27 | 1986-01-02 | FIAT AUTO S.p.A. | Variable-stiffnes air spring, particularly for motor vehicle suspensions |
JPH07167189A (en) * | 1993-12-15 | 1995-07-04 | Toyota Motor Corp | Air suspension device |
US6427986B1 (en) * | 1999-03-31 | 2002-08-06 | Tokico, Ltd. | Air suspension apparatus |
DE10050028A1 (en) * | 1999-10-15 | 2001-05-10 | Phoenix Ag | Pneumatic suspension for front axle of motor vehicle; has articulated component on air-spring cover in area near connection of axial or transverse elastomer air-spring bellows |
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FR3090499A1 (en) * | 2018-12-21 | 2020-06-26 | Psa Automobiles Sa | PNEUMATIC SUSPENSION WITH TWO OPERATING MODES WITH CASCADE AIR CELLS |
FR3090500A1 (en) * | 2018-12-21 | 2020-06-26 | Psa Automobiles Sa | PNEUMATIC SUSPENSION WITH TWO OPERATING MODES WITH PARALLEL AIR CELLS |
DE102019104714A1 (en) * | 2019-02-25 | 2020-08-27 | Vibracoustic Ag | Air suspension module |
US12059936B2 (en) | 2019-02-25 | 2024-08-13 | Vibracoustic Se | Air spring module |
DE102019125061A1 (en) * | 2019-09-18 | 2021-03-18 | Wabco Europe Bvba | Bistable solenoid valve for an air suspension system of a vehicle and method for controlling this solenoid valve |
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