DE10316950A1 - Vibration absorber for motor vehicles has an absorbing cylinder (AC), an absorbing piston to separate the AC into two working chambers, pressure-dependent absorbing valves and an actuator - Google Patents
Vibration absorber for motor vehicles has an absorbing cylinder (AC), an absorbing piston to separate the AC into two working chambers, pressure-dependent absorbing valves and an actuator Download PDFInfo
- Publication number
- DE10316950A1 DE10316950A1 DE2003116950 DE10316950A DE10316950A1 DE 10316950 A1 DE10316950 A1 DE 10316950A1 DE 2003116950 DE2003116950 DE 2003116950 DE 10316950 A DE10316950 A DE 10316950A DE 10316950 A1 DE10316950 A1 DE 10316950A1
- Authority
- DE
- Germany
- Prior art keywords
- actuator
- piston
- damping
- vibration damper
- piston rod
- 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- Withdrawn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
- 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
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
- B60G17/08—Characteristics of fluid dampers
-
- 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
- F16F9/3485—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by features of supporting elements intended to guide or limit the movement of the annular discs
-
- 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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
- F16F9/461—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall characterised by actuation means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Die Erfindung betrifft einen Schwingungsdämpfer für Kraftfahrzeuge nach dem Oberbegriff des Anspruchs 1.The The invention relates to a vibration damper for motor vehicles according to the preamble of Claim 1.
Ein
derartiger Schwingungsdämpfer
ist aus der
Aufgabe der Erfindung ist es demgegenüber, einen einfacheren und somit günstiger herzustellenden Schwingungsdämpfer anzugeben.task the invention it is in contrast, a simpler and thus cheaper to be manufactured vibration damper specify.
Diese Aufgabe wird durch die Merkmale des Anspruch 1 gelöst.This The object is solved by the features of claim 1.
Grundlegender Gedanke der Erfindung ist, einen ein Dämpfungsventil beaufschlagenden Aktor ringförmig um die Kolbenstange des Schwingungsdämpfers anzuordnen und mit dem Aktor den Kolben an der Kolbenstange zu verspannen. Dadurch entsteht eine kompakte Bauweise, die einfach und kostengünstig zu fertigen ist. Aufgrund ihrer kompakten Bauweise können mit einem Aktor versehene Kolben in bestehende Dämpfungszylinder eingebaut werden. Somit ist ein bereits existierender Schwingungsdämpfer leicht umrüstbar.basic The idea of the invention is to apply a damping valve Actuator annular to arrange the piston rod of the vibration damper and with the Actuator to clamp the piston to the piston rod. This creates a compact design that is easy and inexpensive to manufacture. by virtue of their compact design can equipped with an actuator pistons are installed in existing damping cylinder. Thus, an existing vibration damper is easily convertible.
Das Dämpfungsventil kann als beispielsweise mehrschichtiges Federpaket oder als Tellerfeder ausgebildet sein und mit Vorspannung an der Stirnseite des Kolbens anliegen und dabei als Überströmkanäle ausgebildete Drosselbohrungen im Kolben zumindest teilweise verschließen.The damping valve can be designed as, for example, multilayer spring assembly or as a plate spring be and bias against the front of the piston and designed as overflow channels Close throttle bores in the piston at least partially.
Erfindungsgemäß beinhaltet der Aktor ein oder mehrere Piezoelemente. Dabei ist das Piezoelement beispielsweise einstückig ausgeführt und überwiegend ringförmig um die Kolbenstange angeordnet. Mehrere Piezoelemente können axial übereinander geschichtet angeordnet sein, so dass sich bei Beaufschlagung der Piezoelemente mit elektrischer Spannung deren einzelne Längenänderungen addieren. Mehrere Piezoelemente können auch in Segmenten des überwiegend ringförmigen Aktors angeordnet sein.Included in the invention the actuator one or more piezo elements. Here is the piezo element for example, in one piece accomplished and mostly annular arranged around the piston rod. Several piezo elements can axially over each other layered, so that when applied to the Piezo elements with electrical voltage whose individual changes in length add. Several piezo elements can also be used in segments of the predominantly annular Actuator can be arranged.
Über die Anordnung des Aktors in Relation zum Dämpfungsventil wird festgelegt, ob die Dämpfungswirkung des Dämpfungsventils bei Beaufschlagung des Aktors mit einer elektrischen Spannung zu- oder abnimmt.About the Arrangement of the actuator in relation to the damping valve is determined whether the damping effect of the damping valve when acted upon by the actuator with an electrical voltage or decreases.
Die elektrische Versorgung des Aktors kann vollständig über ein mehradriges Stromkabel in einem Kabelkanal in der Kolbenstange erfolgen. Möglich ist aber auch, nur eine Ader der elektrischen Spannungsversorgung im Kabelkanal zu verlegen und die weitere Ader, vorzugsweise die Masse, über den Kolben, einen zugleich als Dichtung fungierenden Spannring und die Zylinderwand des Schwingungsdämpfers zu führen. Als weitere Alternative kann der Kolbenstangenkörper für eine Ader als elektrische Leitung genutzt werden. In den beiden letztgenannten Alternativen ist jedoch eine elektrische Isolation der wesentlichen Bauteile gegeneinander erforderlich.The Electrical supply of the actuator can be completely via a multi-core power cable take place in a cable channel in the piston rod. Is possible but also, only one wire of the electrical power supply in the Lay the cable duct and the other wire, preferably the ground, over the Piston, at the same time acting as a seal clamping ring and the Cylinder wall of the vibration damper respectively. As a further alternative, the piston rod body for a wire as electrical Line to be used. In the latter two alternatives However, an electrical insulation of the essential components against each other required.
Zwei Ausführungsformen des erfindungsgemäßen Schwingungsdämpfers sind in der Zeichnung dargestellt und nachfolgend näher beschrieben. Dabei zeigen:Two embodiments of the vibration damper according to the invention shown in the drawing and described in more detail below. Showing:
In
Die
Kolbenstange
Der
Kolben
In
Koaxial
zur Längsachse
Der
Aktor
Die
Kolbenführung
Bei
der Versorgung des Aktors mit elektrischer Energie sieht die Erfindung
verschiedene Varianten vor: Bei einer ersten Variante verläuft ein
Kabelkanal
Als
zweite Ader der Spannungsversorgung verbindet ein weiteres Kabel
Eine
weitere Variante der Spannungsversorgung sieht vor, zumindest eine
Ader der Stromversorgung über
den Körper
der Kolbenstange
Es
ist leicht ersichtlich, dass natürlich
auch beide Adern der Spannungsversorgung in einem mehradrigen Kabel
Über eine
durch die Steuerung vorgenommene Beaufschlagung des Aktors
Durch
Spannungsbeaufschlagung des Piezoelements
Abhängig von
der Dimensionierung des Isolationsrings
Es
ist leicht nachvollziehbar, dass eine alternative Ausführungsform
des erfindungsgemäßen Schwingungsdämpfers
Die
Dämpfungseigenschaft
eines Schwingungsdämpfers
In
Jeder
Aktor kann einzeln mit Spannung beaufschlagt werden. Dazu ist jeder
Aktor
Infolge
der bei Beaufschlagung mit elektrischer Spannung auftretenden Längendehnung
der in den Aktoren
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003116950 DE10316950A1 (en) | 2003-04-12 | 2003-04-12 | Vibration absorber for motor vehicles has an absorbing cylinder (AC), an absorbing piston to separate the AC into two working chambers, pressure-dependent absorbing valves and an actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003116950 DE10316950A1 (en) | 2003-04-12 | 2003-04-12 | Vibration absorber for motor vehicles has an absorbing cylinder (AC), an absorbing piston to separate the AC into two working chambers, pressure-dependent absorbing valves and an actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10316950A1 true DE10316950A1 (en) | 2004-10-21 |
Family
ID=33016295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003116950 Withdrawn DE10316950A1 (en) | 2003-04-12 | 2003-04-12 | Vibration absorber for motor vehicles has an absorbing cylinder (AC), an absorbing piston to separate the AC into two working chambers, pressure-dependent absorbing valves and an actuator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10316950A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008050084B3 (en) * | 2008-10-06 | 2009-11-26 | Benteler Automobiltechnik Gmbh | High frequency excitation compensating method for telescopic vibration damper of motor vehicle, involves deforming upper piezoelectric actuator against lower piezoelectric actuator, when mechanical force acts on lower actuator |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6113041A (en) * | 1984-06-27 | 1986-01-21 | Kayaba Ind Co Ltd | Damping-force adjusting structure of hydraulic buffer |
-
2003
- 2003-04-12 DE DE2003116950 patent/DE10316950A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6113041A (en) * | 1984-06-27 | 1986-01-21 | Kayaba Ind Co Ltd | Damping-force adjusting structure of hydraulic buffer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008050084B3 (en) * | 2008-10-06 | 2009-11-26 | Benteler Automobiltechnik Gmbh | High frequency excitation compensating method for telescopic vibration damper of motor vehicle, involves deforming upper piezoelectric actuator against lower piezoelectric actuator, when mechanical force acts on lower actuator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8120 | Willingness to grant licenses paragraph 23 | ||
8141 | Disposal/no request for examination |