DE4314807A1 - Pref. fibrous composite material forming body - is hollow or filled and is pre-curved longitudinally. - Google Patents

Pref. fibrous composite material forming body - is hollow or filled and is pre-curved longitudinally.

Info

Publication number
DE4314807A1
DE4314807A1 DE19934314807 DE4314807A DE4314807A1 DE 4314807 A1 DE4314807 A1 DE 4314807A1 DE 19934314807 DE19934314807 DE 19934314807 DE 4314807 A DE4314807 A DE 4314807A DE 4314807 A1 DE4314807 A1 DE 4314807A1
Authority
DE
Germany
Prior art keywords
hollow
filled
pref
composite material
material forming
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.)
Ceased
Application number
DE19934314807
Other languages
German (de)
Inventor
Peter Prof Dr Ing Gaertner
Wolfgang Dr Ing Freund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19934314807 priority Critical patent/DE4314807A1/en
Publication of DE4314807A1 publication Critical patent/DE4314807A1/en
Ceased legal-status Critical Current

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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
    • F16F1/368—Leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • 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
    • B60G17/027—Mechanical springs regulated by fluid means
    • B60G17/0275—Mechanical springs regulated by fluid means the mechanical spring being a leaf spring
    • 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
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/11—Leaf spring
    • 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
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/413—Hydraulic actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/50—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/60—Load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/80—Exterior conditions
    • B60G2400/84—Atmospheric conditions
    • B60G2400/842—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/10—Damping action or damper
    • 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
    • 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

Abstract

The pref. composite fibrous body may be used as part of a vehicle. It may be hollow or may be filled with a medium such as plastics foam. The body is pre-curved in a lengthwise direction and follows a pre-set deformation path under the combined or single effect of forces, momentum, pressure and temp. USE/ADVANTAGE - The composite fibrous body is compact, lightweight and economical to produce, esp. for mechanisms in vehicles such as wheel guide elements or in controls, and combines in one component kinematic control, as spring and steering element dependent on temp. and pressure.

Description

Die führende und dämpfende Hohlfeder mit veränderbarer Steifigkeit wird vorzugsweise aus Faserverbundwerkstoff hergestellt. Die Einsatzgebiete liegen im Maschinenbau, speziell im Fahrzeugbau als Radführungselement sowie in der Regelungstechnik.The leading and damping hollow spring with changeable Stiffness is preferably made of fiber composite material produced. The areas of application are in mechanical engineering, especially in vehicle construction as a wheel guide element and in control technology.

Zum Stand der Technik gehören gerade und vorgekrümmte Kunststoffkörper aus Vollmaterial zur Federung und Führung von Bauteilen so wie sie beispielsweise nach DD 2 92 509 A5, Europapatent 0 474322 A3, DE-OS 34 34 375 und DE-OS 35 30 353 beschrieben sind. Diese Lösungen ermöglichen nicht die wahlweise Kombination von kinematischer Führung, Dämpfung, veränderbarer Federsteifigkeit und temperaturabhängiger Verformung.The prior art includes straight and pre-curved ones Plastic body made of solid material for suspension and guidance of components such as those described in DD 2 92 509 A5, European patent 0 474 322 A3, DE-OS 34 34 375 and DE-OS 35 30 353 are described. These solutions do not allow that optional combination of kinematic guidance, damping, changeable spring stiffness and temperature dependent Deformation.

Das der Erfindung zugrundeliegende Problem liegt darin, eine Lösung zu finden, die die vorgenannten Kombinationen mit nur einem Bauteil ermöglicht und dadurch Einbauraum, Masse und Kosten spart.The problem underlying the invention is to find a solution using the aforementioned combinations enabled with only one component and thus installation space, Saving mass and costs.

Die Erfindung beinhaltet einen Hohlkörper vorzugsweise aus Faserverbundwerkstoff, der in Längsrichtung vorgekrümmt ist, eingespannt oder gelenkig bzw. kombiniert befestigt wird und sich bei Beanspruchung definiert verformt. Er dient zur kinematischen Führung, als Feder sowie als temperatur- und druckabhängiges Steuerungselement.The invention preferably includes a hollow body Fiber composite material that is pre-curved in the longitudinal direction is clamped or articulated or combined is deformed and deformed under stress. He serves for kinematic guidance, as a spring and as temperature and pressure dependent control element.

Durch die Füllung des Hohlraumes mit einem Medium ist eine zusätzliche Dämpfung möglich, die mit entsprechenden Ein- oder Anbauten veränderbar ist. Wird der Hohlraum mit Druck beaufschlagt, ist die Federungscharakteristik und damit die kinematische Niveaulage veränderbar. Eine weitere Formänderung ist durch Temperatureinfluß von innen oder außen erzielbar. By filling the cavity with a medium there is one additional damping possible with the appropriate inputs or attachments can be changed. The cavity becomes pressurized applied, is the suspension characteristic and thus the kinematic level can be changed. Another Shape change is due to temperature influence from inside or achievable on the outside.  

Der Gegenstand der Erfindung ist deshalb besonders vorteilhaft für eine federnde, dämpfende und niveauregu­ lierende Rad- bzw. Achsführung anwendbar. Weiterhin kann durch Veränderung des Innendrucks und/oder der Tempe­ ratur die Verformung variiert werden, so daß eine vorteil­ hafte Verwendung in der Regelungstechnik als Steuerungs­ element gegeben ist.The object of the invention is therefore special advantageous for a resilient, damping and level control wheel or axle guide applicable. Furthermore can by changing the internal pressure and / or the temperature rature the deformation can be varied, so that an advantage use in control engineering as control element is given.

Ein Anwendungsbeispiel für eine PKW-Hinterachsführung soll nachfolgend erläutert werden. Zwei parallele Kunststoff­ hohlfedern aus beispielsweise gewickeltem Kohlefaser­ laminat werden in Längsrichtung mit dem vorderen dicken Federende am Fahrzeugboden fest verschraubt. Am hinteren dünnen Federende beider Federn wird eine leichte Starr­ achse fest verschraubt. Damit wird die Fahrzeugachse federnd und kinematisch exakt geführt. Das Maß der Feder­ verformung beim Einfedern ist mittels der Federvorkrümmung so wählbar, daß beim einseitigen Einfedern ein Lenkwinkel der Starrachse erzeugt wird, so daß das Eigenlenkverhalten (z. B. Untersteuern) definiert festlegbar ist. Der Feder­ hohlraum ist mit Stoßdämpferöl gefüllt. Beim Einfedern wird das Öl aus der Feder über ein spezielles Ventil in einen vorgeordneten Raum verdrängt und beim Ausfedern wieder zurückgesaugt. Dadurch wird eine Schwingungs­ dämpfung erreicht. Durch Druckerhöhung des Öls ist eine zusätzliche Niveauregulierung möglich. Auf diese Weise wird nur wenig Bauraum für die Hinterachse beansprucht, so daß mehr Nutzraum entsteht. Für weniger Fahrkomfort kann die Hohlfeder mit einer gummiartigen Füllung versehen werden, um ausreichende Dämpfung zu bewirken.An application example for a car rear axle guide should are explained below. Two parallel plastics hollow springs made of, for example, wound carbon fiber Laminate lengthways with the front thick Spring end screwed to the vehicle floor. At the back thin spring end of both springs becomes a light rigid axis screwed tight. So that the vehicle axle springy and kinematically precise. The measure of the spring Deformation during compression is by means of the spring pre-curvature so selectable that with one-sided compression a steering angle the rigid axle is generated so that the self-steering behavior (e.g. understeering) can be defined. The feather cavity is filled with shock absorber oil. Compression the oil from the spring is fed in via a special valve displaces an upstream space and when rebounding sucked back again. This creates a vibration damping achieved. By increasing the pressure of the oil is one additional level regulation possible. In this way little space is required for the rear axle, so that more usable space is created. Can for less driving comfort provide the hollow spring with a rubber-like filling to provide adequate cushioning.

Claims (1)

Körper vorzugsweise aus Faserverbundwerkstoff dadurch gekennzeichnet, daß dieser Körper hohl oder mit einem Medium gefüllt, in Längsrichtung vorgekrümmt ist und bei kombinierter oder einzelner Einwirkung von Kräften, Momenten, Druck und Temperatur einem vorgegebenen Verformungsweg folgt.Body preferably made of fiber composite material, characterized in that this body is hollow or filled with a medium, is pre-curved in the longitudinal direction and follows a predetermined deformation path with combined or individual action of forces, moments, pressure and temperature.
DE19934314807 1993-05-05 1993-05-05 Pref. fibrous composite material forming body - is hollow or filled and is pre-curved longitudinally. Ceased DE4314807A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934314807 DE4314807A1 (en) 1993-05-05 1993-05-05 Pref. fibrous composite material forming body - is hollow or filled and is pre-curved longitudinally.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934314807 DE4314807A1 (en) 1993-05-05 1993-05-05 Pref. fibrous composite material forming body - is hollow or filled and is pre-curved longitudinally.

Publications (1)

Publication Number Publication Date
DE4314807A1 true DE4314807A1 (en) 1994-03-31

Family

ID=6487204

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934314807 Ceased DE4314807A1 (en) 1993-05-05 1993-05-05 Pref. fibrous composite material forming body - is hollow or filled and is pre-curved longitudinally.

Country Status (1)

Country Link
DE (1) DE4314807A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013586A1 (en) * 2000-03-18 2001-09-20 Bayerische Motoren Werke Ag Vehicle suspension spring with controlled, variable characteristic is hollow and contains magneto-viscous fluid subjected to variable magnetic field

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3530353A1 (en) * 1985-08-24 1987-03-05 Opel Adam Ag WHEEL SUSPENSION FOR VEHICLES
EP0474322A2 (en) * 1990-03-14 1992-03-11 FAHRZEUGWERK WERDAU GmbH Glass fibre reinforced plastic leafspring

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3530353A1 (en) * 1985-08-24 1987-03-05 Opel Adam Ag WHEEL SUSPENSION FOR VEHICLES
EP0474322A2 (en) * 1990-03-14 1992-03-11 FAHRZEUGWERK WERDAU GmbH Glass fibre reinforced plastic leafspring

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 61-2932 A. In: Patents Abstr. of Japan, Sec. M, Vol. 10(1986), Nr. 146(M-482) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013586A1 (en) * 2000-03-18 2001-09-20 Bayerische Motoren Werke Ag Vehicle suspension spring with controlled, variable characteristic is hollow and contains magneto-viscous fluid subjected to variable magnetic field

Similar Documents

Publication Publication Date Title
DE10237658A1 (en) Suspension with MacPherson struts
WO2015165912A1 (en) Assembly of a vibration damper associated with a wheel of a vehicle
DE3737760A1 (en) METHOD FOR OPTIMIZING THE DRIVING PROPERTY OF VEHICLES
DE4002882C1 (en) Hydraulic shock absorber with damping liq. contg. cylinder - has several passages and couplers, each on different partial diameters
DE3842338A1 (en) ACTUATOR FOR AN ACTIVE SPRING-DAMPER SYSTEM
DE2364855A1 (en) Shock absorber for motor vehicles - has working cylinder with two oil filled chambers controlled by two spring loaded valves
DE10102910B4 (en) Motor vehicle, in particular convertible, with actively controlled torsion stabilizers
EP0040675A2 (en) Self-pumping levelling device for vehicles, particularly for motor vehicles
DE4314807A1 (en) Pref. fibrous composite material forming body - is hollow or filled and is pre-curved longitudinally.
DE102014219292A1 (en) Vehicle with damped axle carrier or axle drive
DE19851496A1 (en) Impact absorption appliance has deformation element with honeycomb structure of hexagonal cells
DE19508611A1 (en) Car suspension system reducing rolling motion
DE3726923C2 (en) Air spring for cushioning a motor vehicle
DE1455176B1 (en) Suspension and damping arrangement, in particular for bogies of rail vehicles
DE940805C (en) Rubber suspension for motor vehicles
EP1898120B1 (en) Damping element
DE102007049911A1 (en) Clamping and guide rail for chain drives
EP0592950A1 (en) Running gear for railway vehicles
EP1419911B1 (en) Air spring installation and device for roll stabilization and level control system for vehicles
DE102016220376A1 (en) Radführungseinrichtung
DE10033713C1 (en) Infinitely adjustable friction damper
DE3531542A1 (en) Gas-filled spring arrangement for wheel axles of a vehicle
DE4335774C2 (en) Hollow component
DE102004022167A1 (en) Rear axle carrier for use in motor vehicle, has actuators assigned to respective bearing units, and moved horizontally from centre point of bearing of respective unit with respect to carriage base
DE4035375A1 (en) Shock absorbent vehicle bearing - has bearing block, with double acting gas spring and with two rigid bearing attachments

Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OP8 Request for examination as to paragraph 44 patent law
8122 Nonbinding interest in granting licenses declared
8131 Rejection