DE10324993A1 - Vehicle suspension system, has pneumatic spring reservoir provided in expansion tank to generate preloading to be applied on piston of strut cylinder - Google Patents
Vehicle suspension system, has pneumatic spring reservoir provided in expansion tank to generate preloading to be applied on piston of strut cylinder Download PDFInfo
- Publication number
- DE10324993A1 DE10324993A1 DE2003124993 DE10324993A DE10324993A1 DE 10324993 A1 DE10324993 A1 DE 10324993A1 DE 2003124993 DE2003124993 DE 2003124993 DE 10324993 A DE10324993 A DE 10324993A DE 10324993 A1 DE10324993 A1 DE 10324993A1
- Authority
- DE
- Germany
- Prior art keywords
- spring
- expansion tank
- guide element
- wheel guide
- vehicle
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/30—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
-
- 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
-
- 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
- F16F9/32—Details
- F16F9/58—Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Die Erfindung betrifft ein Fahrzeug-Federungssystem mit veränderbarem Höhenstand des Fahrzeug-Aufbaus gegenüber einem Radführungselement, mit einer ersten insbesondere als Luftfeder ausgebildeten Tragfeder zwischen dem Radführungselement und dem Fzg.-Aufbau, und mit einem als Zusatzfeder wirkenden Anschlagpuffer für das Radführungselement, der oder ein mit diesem zusammenwirkender Anschlag selbsttätig in Abhängigkeit vom Fahrzeug-Höhenstand und somit vom Abstand zwischen dem Radführungselement und dem Fahrzeug-Aufbau derart verlagerbar ist, dass sich unabhängig vom jeweiligen Fahrzeug-Höhenstand das Radführungselement nach einem im wesentlichen gleichen Federweg der Tragfeder direkt oder indirekt am Anschlagpuffer abstützt, wobei der Anschlagpuffer an einem in einem Stütz-Zylinder geführten Verlagerungs-Kolben abgestützt ist, der mit seiner dem Anschlagpuffer abgewandten Seite einen Stützraum im Stütz-Zylinder begrenzt, in welchem eine Druckvorspannkraft an den Verlagerungs-Kolben angelegt wird, und wobei ein dieser Druckvorspannkraft entgegenwirkendes Federelement zwischen dem Anschlagpuffer und dem Radführungselement vorgesehen ist, nach Patentanmeldung 103 06 157.6.The The invention relates to a vehicle suspension system with a variable ride height of the vehicle body a wheel guiding element, with a first suspension spring designed in particular as an air spring between the wheel guiding element and the vehicle body, and with a buffer acting as an additional spring for the wheel guide element, the or a stop interacting with this automatically in dependence from vehicle height and thus the distance between the wheel guide element and the vehicle body can be shifted in such a way that it does not depend on the vehicle height wheel guide directly after a substantially equal spring travel of the suspension spring or indirectly supported on the stop buffer, the stop buffer on one in a support cylinder out Displacement pistons supported is that with its side facing away from the buffer a support space in the Cylinder bearing limited, in which a compressive biasing force on the displacement piston is applied, and a counteracting this pressure biasing force Spring element between the bumper and the wheel guide element is provided, according to patent application 103 06 157.6.
Hiermit soll eine weitere vorteilhafte Ausbildung eines derartigen Fahrzeug-Federungssystems aufgezeigt werden (=Aufgabe der vorliegenden Erfindung).Herewith Another advantageous embodiment of such a vehicle suspension system is shown become (= object of the present invention).
Die Lösung dieser Aufgabe ist dadurch gekennzeichnet, dass zur Erzeugung der Druckvorspannkraft ein Gasfedervolumen vorgesehen ist. Bevorzugt ist dieses dabei in einem Ausgleichsbehälter für ein Hydraulikmedium vorgesehen, mit welchem der sog. Stützraum befüllt ist.The solution this task is characterized in that for generating the Compression biasing a gas spring volume is provided. Prefers if this is provided in an expansion tank for a hydraulic medium, with which the so-called support room filled is.
Ein Gasfedervolumen ermöglicht es, das in der genannten Patentanmeldung 103 06 157.6 sog. erste Federelement im Stützraum entfallen zu lassen, was den Fertigungsaufwand herabsetzen kann. Besonders vorteilhaft ist dies dabei in Verbindung mit einem mit Hydraulikmedium befüllten Stützraum, da das Gasfedervolumen dann auf dieses Hydraulikmedium wirken kann, was zur Folge hat, dass entsprechende Dichtelemente zur Abdichtung des Stützraumes vom quasi vorgespannten Hydraulikmedium stets sicher gegen ihre entsprechende Dichtfläche gepresst werden. Hierdurch ist unter allen Umständen eine sichere Dichtwirkung gewährleistet.On Gas spring volume enables it, the so-called first in said patent application 103 06 157.6 Spring element in the support room to be omitted, which can reduce manufacturing costs. Especially This is advantageous in connection with a hydraulic medium filled Support space since the gas spring volume can then act on this hydraulic medium, which has the consequence that appropriate sealing elements for sealing of the support room of the quasi-preloaded hydraulic medium, always safely against yours corresponding sealing surface pressed become. This ensures a secure sealing effect under all circumstances guaranteed.
In
Anlehnung an die
Mit
der Bezugsziffer
Zum
Teil in diesen Luftraum
Im
Stütz-Zylinder
Zwischen
dem Verlagerungs-Kolben
Das
unter Druck bzw. Vorspannung stehende Gasvolumen
Der
im Stützraum
Betrachtet
man nun
Betrachtet
man demgegenüber
Wie
ein Vergleich der
Wie
vor der Figurenbeschreibung erläutert wurde,
erfolgt dabei die Verlagerung des Anschlagpuffers
Das
Gasfedervolumen
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003124993 DE10324993A1 (en) | 2003-02-14 | 2003-06-03 | Vehicle suspension system, has pneumatic spring reservoir provided in expansion tank to generate preloading to be applied on piston of strut cylinder |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003106157 DE10306157B4 (en) | 2003-02-14 | 2003-02-14 | Vehicle suspension with variable height of the vehicle body |
DE2003124993 DE10324993A1 (en) | 2003-02-14 | 2003-06-03 | Vehicle suspension system, has pneumatic spring reservoir provided in expansion tank to generate preloading to be applied on piston of strut cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10324993A1 true DE10324993A1 (en) | 2004-12-23 |
Family
ID=33491624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003124993 Withdrawn DE10324993A1 (en) | 2003-02-14 | 2003-06-03 | Vehicle suspension system, has pneumatic spring reservoir provided in expansion tank to generate preloading to be applied on piston of strut cylinder |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10324993A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1927487A2 (en) | 2006-12-01 | 2008-06-04 | Audi Ag | Height adjustment device for wheel suspensions in motor vehicles |
DE102008041567B3 (en) * | 2008-08-26 | 2010-04-01 | Zf Friedrichshafen Ag | Vibration damper has cylinder in which piston rod is guided in axially movable manner and impact stop of drive-in motion counteracts from defined drive-in position of piston rod |
WO2013050205A1 (en) * | 2011-10-06 | 2013-04-11 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle wheel suspension with a hydraulic vibration damper |
FR3010161A1 (en) * | 2013-08-29 | 2015-03-06 | Peugeot Citroen Automobiles Sa | SUSPENSION ATTACKING STOP OF A MOTOR VEHICLE INCLUDING AUTOMATIC HEIGHT ADJUSTMENT |
WO2021038143A1 (en) * | 2019-08-28 | 2021-03-04 | Psa Automobiles Sa | Hydraulic stop with inertial mass for motor vehicle suspension |
FR3134154A1 (en) * | 2022-03-30 | 2023-10-06 | Psa Automobiles Sa | MOTOR VEHICLE INCLUDING AN OPTIMIZED END OF STROKE SHOCK ABSORBER |
-
2003
- 2003-06-03 DE DE2003124993 patent/DE10324993A1/en not_active Withdrawn
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1927487A2 (en) | 2006-12-01 | 2008-06-04 | Audi Ag | Height adjustment device for wheel suspensions in motor vehicles |
DE102006056760A1 (en) * | 2006-12-01 | 2008-06-05 | Audi Ag | Height adjustment device for wheel suspensions of motor vehicles |
DE102008041567B3 (en) * | 2008-08-26 | 2010-04-01 | Zf Friedrichshafen Ag | Vibration damper has cylinder in which piston rod is guided in axially movable manner and impact stop of drive-in motion counteracts from defined drive-in position of piston rod |
WO2013050205A1 (en) * | 2011-10-06 | 2013-04-11 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle wheel suspension with a hydraulic vibration damper |
US9090141B2 (en) | 2011-10-06 | 2015-07-28 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle wheel suspension with a hydraulic vibration damper |
FR3010161A1 (en) * | 2013-08-29 | 2015-03-06 | Peugeot Citroen Automobiles Sa | SUSPENSION ATTACKING STOP OF A MOTOR VEHICLE INCLUDING AUTOMATIC HEIGHT ADJUSTMENT |
WO2021038143A1 (en) * | 2019-08-28 | 2021-03-04 | Psa Automobiles Sa | Hydraulic stop with inertial mass for motor vehicle suspension |
FR3100298A1 (en) * | 2019-08-28 | 2021-03-05 | Psa Automobiles Sa | AUTOMOTIVE VEHICLE HYDRAULIC SUSPENSION STOPPER WITH INERTIAL MASS |
FR3134154A1 (en) * | 2022-03-30 | 2023-10-06 | Psa Automobiles Sa | MOTOR VEHICLE INCLUDING AN OPTIMIZED END OF STROKE SHOCK ABSORBER |
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Effective date: 20110923 |