DE102008011361B3 - Vibration damper operating method for motor vehicle, involves connecting damper with vehicle via connection bodies, and increasing limit for maximally softest characteristic of adjustable absorbing valve at removing operating temperature - Google Patents
Vibration damper operating method for motor vehicle, involves connecting damper with vehicle via connection bodies, and increasing limit for maximally softest characteristic of adjustable absorbing valve at removing operating temperature Download PDFInfo
- Publication number
- DE102008011361B3 DE102008011361B3 DE200810011361 DE102008011361A DE102008011361B3 DE 102008011361 B3 DE102008011361 B3 DE 102008011361B3 DE 200810011361 DE200810011361 DE 200810011361 DE 102008011361 A DE102008011361 A DE 102008011361A DE 102008011361 B3 DE102008011361 B3 DE 102008011361B3
- Authority
- DE
- Germany
- Prior art keywords
- vibration damper
- operating temperature
- damper
- motor vehicle
- temperature
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/52—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics in case of change of temperature
-
- 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
- B60G17/052—Pneumatic spring characteristics
- B60G17/0521—Pneumatic spring characteristics the spring having a flexible wall
-
- 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
- F16F9/3292—Sensor arrangements
Abstract
Description
Die Erfindung betrifft ein Verfahren gemäß dem Oberbegriff von Patentanspruch 1.The The invention relates to a method according to the preamble of claim 1.
Aus
der
Die
Der Fahrkomfort wird jedoch auch von der Geräuschkulisse im Fahrzeug bestimmt. Bei niedrigeren Temperaturen verhärten z. B. Elastomerkörper in den Anschlussorganen des Schwingungsdämpfers zum Fahrzeug. Diese Verhärtung verschlechtert die Entkopplung zum Fahrzeugaufbau und führt damit zu einer Geräuschbildung im Fahrzeug. Ferner führt die Erhöhung der Viskosität zu einer Verschärfung der vom Dämpfer selbstemittierten Kolbenstangenbeschleunigungen. Diese ist ein Maß für die vom Dämpfer selbst erzeugten Geräusche.Of the However, ride comfort is also determined by the background noise in the vehicle. At lower temperatures harden z. B. elastomeric body in the connection organs of the vibration damper to the vehicle. These hardening degrades the decoupling to the vehicle body and leads to it to a noise in the vehicle. Further leads the increase the viscosity to a tightening from the damper self-emitted piston rod accelerations. This is a measure of the damper self-generated sounds.
Aufgabe der vorliegenden Erfindung ist es den Fahrkomfort zu verbessern, indem die Geräuschbildung vermindert wird.task the present invention is to improve ride comfort, by the noise is reduced.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass die Grenze für die maximal weichste Kennlinie des verstellbaren Dämpfventils bei abnehmender Betriebstemperatur angehoben wird.According to the invention Task solved by that the limit for the maximum softest characteristic of the adjustable damping valve is raised as the operating temperature decreases.
Der Schwingungsdämpfer wird damit verhärtet. Die Übertragung von Fahrbahnunebenheiten wird zwar verschlechtert, jedoch tritt eine erhebliche Verbesserung des Geräuschverhaltens des Fahrzeugfahrwerks ein, wenn die Geräuschursache im Fahrwerk liegt, so dass in Summe eine Fahrkomfortsteigerung erreicht wird.Of the vibration is hardened with it. The transfer of road bumps is deteriorated, but occurs a considerable improvement in the noise behavior of the vehicle chassis if the noise cause in the chassis, so that in total achieves a ride comfort increase becomes.
Aus umfangreichen Versuchen wurde die Erkenntnis gewonnen, dass der geräuschverursachende Temperaturbereich bei Temperaturen unter 5° vorliegt, so dass das Verfahren auch nur in dem Temperaturbereich eingesetzt wird. Besonders relevant ist der Temperaturbereich von 0° und kälter.Out extensive experiments, the knowledge was gained that the noise-generating Temperature range is present at temperatures below 5 °, so the process is also used only in the temperature range. Especially relevant is the temperature range of 0 ° and colder.
In weiterer vorteilhafter Ausgestaltung des Verfahrens wird die Betriebstemperatur des Anschlusslagers bestimmt, da über die Betriebstemperatur Rückschlüsse auf das Federungsverhalten bzw. Geräuschverhalten des Anschlussorgans getroffen werden können.In Another advantageous embodiment of the method is the operating temperature of the connection camp determines, as over the operating temperature Conclusions on the suspension behavior or noise behavior of the connecting member can be taken.
Die Betriebstemperatur des Anschlusslagers lässt sich direkt nur schwer messen, da man im günstigsten Fall einen Temperatursensor in den Elastomerkörper des Anschlusslagers platzieren müsste. Im Elastomerlager wäre der Sensor jedoch einer ständigen mechanischen Belastung ausgesetzt. Ersatzweise wird deshalb die Umgebungstemperatur des Anschlagslagers erfasst.The Operating temperature of the connection bearing can be difficult directly measure as you are in the cheapest Case, place a temperature sensor in the elastomer body of the connection bearing would. in the Elastomeric bearing would be the sensor, however, a permanent exposed to mechanical stress. Replacement is therefore the Ambient temperature of the stop bearing recorded.
Anhand der folgenden Figurenbeschreibung wird die Erfindung näher erläutert.Based The following description of the figures, the invention will be explained in more detail.
Die
einzige Figur zeigt ein Kolben-Zylinderaggregat
Der
gesamte Schwingungsdämpfer
ist über Anschlussorgane
Am
Schwingungsdämpfer
Des
Weiteren kommen ein Außentemperatur-Thermometer
Alle
Eingangssignale STu, STD;
sv, a der Sensoren werden zu einem Gesamtsignal
Sges kombiniert, ggf. durch Gewichtung der
Einzelsignale. Die Temperatursignale STu,
STD bestimmen die Grenze für die maximal
weichste Kennlinie des verstellbaren Dämpfventils, wobei die maximal
weichste Kennlinie bei abnehmender Betriebstemperatur angehoben wird.
In dem Stellstrom-Kennliniefeld [≈ Dämpfkraft]
Das Verfahren wird vornehmlich bei Temperaturen unter 5°, insbesondere unter 0° eingesetzt. Bei höherer Temperatur verliert sich die verhärtende Eigenschaft der Anschlussorgane bzw. wirkt sich nicht geräuschverursachend aus.The Method is mainly at temperatures below 5 °, in particular used below 0 °. at higher Temperature loses the hardening property of the connecting organs or does not affect noise out.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810011361 DE102008011361B3 (en) | 2008-02-27 | 2008-02-27 | Vibration damper operating method for motor vehicle, involves connecting damper with vehicle via connection bodies, and increasing limit for maximally softest characteristic of adjustable absorbing valve at removing operating temperature |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810011361 DE102008011361B3 (en) | 2008-02-27 | 2008-02-27 | Vibration damper operating method for motor vehicle, involves connecting damper with vehicle via connection bodies, and increasing limit for maximally softest characteristic of adjustable absorbing valve at removing operating temperature |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008011361B3 true DE102008011361B3 (en) | 2009-07-09 |
Family
ID=40719619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810011361 Expired - Fee Related DE102008011361B3 (en) | 2008-02-27 | 2008-02-27 | Vibration damper operating method for motor vehicle, involves connecting damper with vehicle via connection bodies, and increasing limit for maximally softest characteristic of adjustable absorbing valve at removing operating temperature |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008011361B3 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0542573A2 (en) * | 1991-11-15 | 1993-05-19 | Lord Corporation | Variable shock absorber with integrated controller actuator and sensors |
DE4039839C2 (en) * | 1989-12-13 | 1994-11-17 | Atsugi Unisia Corp | Suspension control system for the damping characteristic in a motor vehicle |
DE4139690C2 (en) * | 1990-11-30 | 1997-09-11 | Atsugi Unisia Corp | Damping force control system for the wheel suspension of a motor vehicle |
DE19624895C1 (en) * | 1996-06-21 | 1997-12-11 | Mannesmann Sachs Ag | Vibration damper with variable steam power |
DE10237012A1 (en) * | 2002-08-13 | 2004-03-04 | Zf Sachs Ag | Electrically operated actuator for variable vibration damper valve has current regulator using change in electrical resistance in current supply as measure of temperature change relative to actuator |
-
2008
- 2008-02-27 DE DE200810011361 patent/DE102008011361B3/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4039839C2 (en) * | 1989-12-13 | 1994-11-17 | Atsugi Unisia Corp | Suspension control system for the damping characteristic in a motor vehicle |
DE4139690C2 (en) * | 1990-11-30 | 1997-09-11 | Atsugi Unisia Corp | Damping force control system for the wheel suspension of a motor vehicle |
EP0542573A2 (en) * | 1991-11-15 | 1993-05-19 | Lord Corporation | Variable shock absorber with integrated controller actuator and sensors |
DE19624895C1 (en) * | 1996-06-21 | 1997-12-11 | Mannesmann Sachs Ag | Vibration damper with variable steam power |
DE10237012A1 (en) * | 2002-08-13 | 2004-03-04 | Zf Sachs Ag | Electrically operated actuator for variable vibration damper valve has current regulator using change in electrical resistance in current supply as measure of temperature change relative to actuator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |