DE102013101893A1 - Device for driving height adjustment of air-spring vehicle, particularly commercial vehicle, has compressed air line guiding in valve unit arranged by compressed air supply to air spring and valve piston mounted to valve housing - Google Patents
Device for driving height adjustment of air-spring vehicle, particularly commercial vehicle, has compressed air line guiding in valve unit arranged by compressed air supply to air spring and valve piston mounted to valve housing Download PDFInfo
- Publication number
- DE102013101893A1 DE102013101893A1 DE201310101893 DE102013101893A DE102013101893A1 DE 102013101893 A1 DE102013101893 A1 DE 102013101893A1 DE 201310101893 DE201310101893 DE 201310101893 DE 102013101893 A DE102013101893 A DE 102013101893A DE 102013101893 A1 DE102013101893 A1 DE 102013101893A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- compressed air
- vehicle
- air
- valve piston
- 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.)
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Classifications
-
- 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
- B60G17/056—Regulating distributors or valves for hydropneumatic systems
-
- 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
- B60G17/015—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 the regulating means comprising electric or electronic elements
- B60G17/017—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 the regulating means comprising electric or electronic elements characterised by their use when the vehicle is stationary, e.g. during loading, engine start-up or switch-off
-
- 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
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Fahrhöheneinstellung eines luftgefederten Fahrzeugs, mit einem in einer von einer Druckluftversorgung zu einer Luftfeder führenden Druckluftleitung angeordneten Ventileinrichtung mit einem in einem fahrzeugfesten Ventilgehäuse drehbeweglich gelagerten Ventilkolben, sowie mit einem auf den Ventilkolben im Drehsinne einwirkenden Stellglied mit fahrhöhenabhängiger Position, wobei eine Drehwelle von dem Stellglied zu dem Ventilkolben führt. The invention relates to a device for adjusting the height of a vehicle air-sprung, arranged in a leading from a compressed air supply to a pneumatic spring compressed air line valve means rotatably mounted in a vehicle-mounted valve housing valve piston, and with an acting on the valve piston in the rotary actuator with height-dependent position, said a rotary shaft from the actuator to the valve piston leads.
Zum Einsatz kommen solche Vorrichtungen bei luftgefederten Achsen von schweren Nutzfahrzeugen. Die verwendeten Luftfedern, üblicherweise Rollbalgfedern, sind mit ihrem einen Ende am Chassis des Fahrzeugs festgelegt und mit ihrem anderen Ende gegen die Fahrzeugachse oder den die Fahrzeugachse führenden Achslenker abgestützt. Das federnde Volumen ist von einem flexiblen Luftbalg umschlossen, so dass die eingeschlossene Druckluft das Fahrzeug gegen Stöße aufgrund z. B. von Fahrbahnunebenheiten abzufedern vermag. Über eine Einstellung des Luftvolumens in der Luftfeder ist außerdem eine Niveauregulierung und -anpassung möglich, also eine Einstellung der Fahrhöhe des Fahrzeugs. Unter der Fahrhöhe des Fahrzeugs wird üblicherweise der Abstand des Fahrzeugchassis gegenüber der Fahrbahn bezeichnet. Beim Beladen des Fahrzeugs z. B. wird durch das zusätzliche Gewicht die Luft innerhalb der Luftfedern stärker komprimiert, wodurch die Fahrhöhe abnimmt. Dies vermag die Vorrichtung zur Fahrhöheneinstellung im Rahmen des Niveauausgleichs auszugleichen.Such devices are used for air-suspended axles of heavy commercial vehicles. The air springs used, usually Rollbalgfedern, are fixed at one end to the chassis of the vehicle and supported with its other end against the vehicle axle or the vehicle axle leading wishbone. The resilient volume is enclosed by a flexible air bellows, so that the trapped compressed air the vehicle against shocks due to z. B. is able to cushion off road bumps. By adjusting the volume of air in the air spring also a level control and adjustment is possible, so setting the ride height of the vehicle. The ride height of the vehicle usually refers to the distance of the vehicle chassis from the roadway. When loading the vehicle z. B. is compressed by the additional weight, the air inside the air springs more, causing the ride height decreases. This can compensate for the device for driving height adjustment in the context of leveling.
Die Einstellung der Fahrhöhe erfolgt mittels eines unter dem Fahrzeugchassis befestigten Ventilmechanismus. Über diesen gelangt Druckluft ventilgesteuert von einer Druckluftquelle zu den einzelnen Luftfedern der Luftfederachse, oder wird aus den Luftfedern abgelassen. Das Ventil in dem Ventilmechanismus wird durch ein als Istwert-Geber dienendes, mechanisches Stellglied betätigt, welches die gegenseitige Position der ungefederten in Bezug auf die gefederten Teile des Fahrwerks sensiert und dieses mechanische Signal über eine Drehwelle auf den Ventilkörper des Ventils überträgt.The adjustment of the ride height by means of a mounted under the vehicle chassis valve mechanism. Via this, compressed air passes under valve control from a compressed air source to the individual air springs of the air spring axis, or is discharged from the air springs. The valve in the valve mechanism is actuated by a mechanical actuator acting as an actual value sensor, which senses the mutual position of the unsprung springs in relation to the sprung parts of the chassis and transmits this mechanical signal via a rotary shaft to the valve body of the valve.
Die bekannten Vorrichtungen ermöglichen einen präzisen Niveauausgleich und führen unter allen Umständen zur Aufrechterhaltung der üblicherweise als optimal angesehenen Fahrhöhe. Es gibt jedoch Situationen, in denen die übliche Fahrhöhe nachteilig ist. Zu nennen sind z. B. Situationen in denen vorübergehend der gesamte Fahrzeugaufbau abgesenkt werden soll, um so z. B. eine kritische Durchfahrtshöhe zu meistern. Umgekehrt kann es bei sehr schlechten Straßenverhältnissen wünschenswert sein, die Fahrhöhe zu vergrößern, um so größere Federwege zu realisieren.The known devices allow a precise leveling and lead in all circumstances to maintain the usually regarded as optimal ride height. However, there are situations where the usual ride height is detrimental. To name a few are z. B. situations in which temporarily the entire vehicle body is to be lowered to such. B. to master a critical headroom. Conversely, it may be desirable in very poor road conditions to increase the ride height, so as to realize greater suspension travel.
Der Erfindung liegt die Aufgabe zugrunde, für Fahrsituationen abseits des Üblichen mittels einfacher mechanischer Mittel eine dem Niveauausgleich überlagerbare Fahrhöheneinstellung zu ermöglichen.The invention has for its object to allow for driving situations off the usual by means of simple mechanical means a level compensation superimposed ride height adjustment.
Zur Lösung dieser Aufgabe wird eine Vorrichtung zur Fahrhöheneinstellung mit den Merkmalen des Anspruchs 1 vorgeschlagen. Die Drehwelle weist hierbei eine Trennstelle auf, an der die Drehwelle in einen zu dem Stellglied drehfesten ersten Wellenabschnitt und einen zu dem Ventilkolben drehfesten zweiten Wellenabschnitt unterteilt ist. Die so entkoppelten Wellenabschnitte sind mittels eines Manipulators relativ zueinander winkelverstellbar.To solve this problem, a device for driving height adjustment with the features of claim 1 is proposed. The rotary shaft in this case has a separation point at which the rotary shaft is subdivided into a first shaft section which is rotationally fixed relative to the actuator and a second shaft section which is rotationally fixed relative to the valve piston. The thus decoupled shaft sections are angularly adjustable by means of a manipulator relative to each other.
Eine solche Vorrichtung ermöglicht mit einfachen, rein mechanischen Mitteln eine dem unverändert arbeitenden Niveauausgleich überlagerte Fahrhöheneinstellung. Von Vorteil kann dies z. B. in Situationen sei, in denen vorübergehend der gesamte Fahrzeugaufbau abgesenkt werden soll oder in Situationen, in denen es, bei weiterhin wirksamem Niveauausgleich, wegen schlechter Straßenverhältnissen wünschenswert ist, die Fahrhöhe allgemein zu vergrößern.Such a device allows a simple, purely mechanical means superimposed on the unchanged level compensation ride height adjustment. This can be advantageous for z. B. in situations where temporarily the entire vehicle body is to be lowered or in situations where it is desirable in still effective leveling, due to poor road conditions, to increase the ride height in general.
Gemäß einer bevorzugten Ausgestaltung der Erfindung ist der vorzugsweise motorbetriebene Manipulator ein verstellbares Getriebe, vorzugsweise ein stufenlos verstellbares Getriebe. Ein insoweit besonders geeignetes Getriebe ist ein Planetengetriebe. Insbesondere lässt sich das zentrale Sonnenrad des Planetengetriebes mit dem einen der zwei Wellenabschnitte, und ein die Planetenräder drehlagernder Träger mit dem anderen der zwei Wellenabschnitte verbinden, wobei der Motorantrieb ein Verdrehen des Hohlrades des Planetengetriebes bewirkt. In Weiterbildung eines solchen Planetengetriebes ist der Motorantrieb mit einem Antriebsritzel versehen, welches in eine an dem Hohlrad ausgebildete Verzahnung eingreift. According to a preferred embodiment of the invention, the preferably motor-operated manipulator is an adjustable transmission, preferably a continuously variable transmission. A so far particularly suitable transmission is a planetary gear. In particular, the central sun gear of the planetary gear can be connected to the one of the two shaft sections, and a support rotatably supporting the planetary gears with the other of the two shaft sections, wherein the motor drive causes a rotation of the ring gear of the planetary gear. In a further development of such a planetary gear, the motor drive is provided with a drive pinion which engages in a toothing formed on the ring gear.
Die Erfindung wird im Folgenden anhand der beigefügten Zeichnungen näher erläutert. Darin zeigen:The invention will be explained in more detail below with reference to the accompanying drawings. Show:
Die
Die Ventileinrichtung
Zur Betätigung des Ventils ist dessen Ventilkolben
Der Block
Die Drehwelle ist allerdings nicht mechanisch durchgehend, sondern sie weist eine Trennstelle T auf. Durch die Trennstelle T ist die von dem Block
Bei dem Manipulator
Zum Schutz gegen Schmutz und Feuchtigkeit kann die Ventileinrichtung
Als Manipulator besonders geeignet ist ein Planetengetriebe, wie es im Folgenden näher erläutert wird. Particularly suitable as a manipulator is a planetary gear, as will be explained in more detail below.
Wie bei einem Planetengetriebe üblich, sind dessen Bestandteile ein zentrales Sonnenrad
Zur Verstellung des Manipulators
Um ein ungewolltes Verstellen des Manipulators
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 22
- Ventileinrichtung valve means
- 44
- Stellglied actuator
- 55
- Stange pole
- 66
- Block block
- 77
- Aufnahme admission
- 99
- Achse axis
- 1010
- Drehachse der Welle Rotary axis of the shaft
- 1111
- Ventilgehäuse valve housing
- 1212
- Ventilkolben plunger
- 1313
- Drehwertgeber Rotary encoder
- 2020
- Manipulator manipulator
- 2121
- erster Wellenabschnitt first shaft section
- 2222
- zweiter Wellenabschnitt second shaft section
- 2525
- Schutzgehäuse housing
- 3131
- Sonnenrad sun
- 3232
- Träger carrier
- 3333
- Planetenrad planet
- 3434
- Hohlrad ring gear
- 4040
- Antrieb, Elektromotor Drive, electric motor
- 4141
- Antriebsritzel pinion
- 4242
- Verzahnung gearing
- TT
- Trennstelle separation point
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310101893 DE102013101893A1 (en) | 2013-02-26 | 2013-02-26 | Device for driving height adjustment of air-spring vehicle, particularly commercial vehicle, has compressed air line guiding in valve unit arranged by compressed air supply to air spring and valve piston mounted to valve housing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310101893 DE102013101893A1 (en) | 2013-02-26 | 2013-02-26 | Device for driving height adjustment of air-spring vehicle, particularly commercial vehicle, has compressed air line guiding in valve unit arranged by compressed air supply to air spring and valve piston mounted to valve housing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013101893A1 true DE102013101893A1 (en) | 2014-08-28 |
Family
ID=51349340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201310101893 Withdrawn DE102013101893A1 (en) | 2013-02-26 | 2013-02-26 | Device for driving height adjustment of air-spring vehicle, particularly commercial vehicle, has compressed air line guiding in valve unit arranged by compressed air supply to air spring and valve piston mounted to valve housing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102013101893A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3618773A1 (en) * | 1986-06-04 | 1987-12-10 | Baumeister Karl Heinz | Level control device for vehicles |
-
2013
- 2013-02-26 DE DE201310101893 patent/DE102013101893A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3618773A1 (en) * | 1986-06-04 | 1987-12-10 | Baumeister Karl Heinz | Level control device for vehicles |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R082 | Change of representative |
Representative=s name: BUNGARTZ CHRISTOPHERSEN PARTNERSCHAFT MBB PATE, DE |
|
R005 | Application deemed withdrawn due to failure to request examination |