DE102005031766A1 - Damping mechanism for motor vehicle chassis, has reversible hydraulic supply connected in parallel with and operates shock absorber in direction independent of relative movement between vehicle bodywork and wheel - Google Patents

Damping mechanism for motor vehicle chassis, has reversible hydraulic supply connected in parallel with and operates shock absorber in direction independent of relative movement between vehicle bodywork and wheel Download PDF

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Publication number
DE102005031766A1
DE102005031766A1 DE200510031766 DE102005031766A DE102005031766A1 DE 102005031766 A1 DE102005031766 A1 DE 102005031766A1 DE 200510031766 DE200510031766 DE 200510031766 DE 102005031766 A DE102005031766 A DE 102005031766A DE 102005031766 A1 DE102005031766 A1 DE 102005031766A1
Authority
DE
Germany
Prior art keywords
damper
hydraulic supply
wheel
motor vehicle
shock absorber
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Withdrawn
Application number
DE200510031766
Other languages
German (de)
Inventor
Andreas Dipl.-Ing. Thies
Christoph Dr. Pelchen
Uwe Dr.-Ing. Wohanka
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to DE200510031766 priority Critical patent/DE102005031766A1/en
Publication of DE102005031766A1 publication Critical patent/DE102005031766A1/en
Withdrawn legal-status Critical Current

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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
    • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
    • B60G17/08—Characteristics of fluid dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • 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
    • B60G17/0408—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics details, e.g. antifreeze for suspension fluid, pumps, retarding means per se
    • 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
    • B60G2202/20—Type of damper
    • B60G2202/24—Fluid damper
    • 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
    • B60G2202/416—Fluid actuator using a pump, e.g. in the line connecting the lower chamber to the upper chamber of the actuator
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A switchable or reversible hydraulic supply (4) is connected in parallel with a shock absorber (3) between a vehicle bodywork (1) and a wheel (6). The hydraulic supply provides hydraulics to operate the shock absorber in a direction independent of the relative movement between the bodywork and wheel. A heat exchanger (5) is connected to the hydraulic supply.

Description

Die vorliegende Erfindung betrifft eine Dämpfereinrichtung für das Fahrwerk eines Kraftfahrzeugs, gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a damper device for the chassis a motor vehicle, according to the preamble of claim 1

Die Auslegung eines konventionellen Fahrwerks für ein Kraftfahrzeug stellt einen Kompromiss zwischen Fahrsicherheit und Fahrkomfort dar, da eine harte Dämpfung ein gutes Handling gewährleistet und eine weiche Dämpfung den Komfort erhöht. Um beide Aspekte kombinieren zu können, sind aus dem Stand der Technik verstellbare Dämpfer bekannt, durch die Dämpfkräfte zwischen einem minimalen und einem maximalen Wert stufenlos verstellbar sind.The Design of a conventional chassis for a motor vehicle provides a compromise between driving safety and comfort, as a hard damping ensures a good handling and a soft cushioning increases the comfort. Around to be able to combine both aspects are known from the prior art adjustable damper, by the damping forces between a minimum and a maximum value are infinitely adjustable.

Die Kraftrichtung der Dämpfer ergibt sich aus der Bewegungsrichtung zwischen dem Aufbau und dem jeweiligen Rad des Fahrzeugs. Aus diesem Grunde ist eine Beeinflussung der Kräfte nur in Abhängigkeit von der Bewegungsrichtung zwischen dem Fahrzeugaufbau und dem Rad möglich, so dass eine vollständige Skyhook-Regelung nicht realisierbar ist. Als Skyhook-Regelung wird eine Regelung bezeichnet, bei der die Dämpfung nicht nur auf eine unebene Straße reagiert, sondern dies noch analog zu einer gedachten geraden Schiene am Himmel tut, mit dem Ziel, den Fahrzeugaufbau möglichst ruhig und unabhängig vom jeweiligen Fahrbahnzustand zu halten.The Force direction of the dampers arises from the direction of movement between the structure and the respective wheel of the vehicle. For this reason, an influence the forces only in dependence from the direction of movement between the vehicle body and the wheel possible, so that a complete Skyhook regulation is not feasible. As a skyhook scheme will a scheme in which the damping is not limited to an uneven Street but this analogous to an imaginary straight rail in the sky, with the aim of building the vehicle as possible calm and independent to keep the respective road condition.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Dämpfereinrichtung für das Fahrwerk eines Kraftfahrzeugs anzugeben, welche eine vollständige Skyhook-Regelung ermöglicht. Insbesondere soll durch die erfindungsgemäße Dämpfereinrichtung eine Beeinflussung deren Kraftrichtung unabhängig von der Bewegungsrichtung zwischen dem Fahrzeugaufbau und dem Rad ermöglicht werden.Of the present invention is based on the object, a damper device for the Specify chassis of a motor vehicle, which is a complete Skyhook control allows. In particular, should by the damper device according to the invention an influence their direction of force independent from the direction of movement between the vehicle body and the wheel allows become.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus dem Unteranspruch hervor.These The object is solved by the features of claim 1. Further Embodiments of the invention and advantages are apparent from the dependent claim.

Demnach wird eine Dämpfereinrichtung vorgeschlagen, umfassend einen verstellbaren Dämpfer und eine Einrichtung zur externen Beeinflussung der Dämpferbewegung, welche vorzugsweise als eine reversierbare Hydraulikversorgung ausgebildet ist, die parallel zu dem Dämpfer geschaltet ist, so dass durch eine entsprechende Regelung der Hydraulikversorgung die Kraftrichtung des Dämpfers unabhängig von der Bewegungsrichtung zwischen Aufbau und Rad wählbar bzw. einstellbar ist.Therefore becomes a damper device proposed comprising an adjustable damper and a device for the external influence of the damper movement, which is preferably designed as a reversible hydraulic supply which is parallel to the damper is switched, so that by an appropriate regulation of the hydraulic supply the direction of force of the damper independently from the direction of movement between body and wheel selectable or is adjustable.

Im Rahmen einer vorteilhaften Weiterbildung der Erfindung wird vorgeschlagen, einen Wärmetauscher/Kühler in Reihe zu der reversierbaren Hydraulikversorgung zu schalten.in the Within the scope of an advantageous development of the invention, it is proposed a heat exchanger / cooler in Row to switch to the reversible hydraulic supply.

Durch die erfindungsgemäße Konzeption wird die Beeinflussung der Kraftrichtung des Dämpfers unabhängig von der Bewegungsrichtung zwischen dem Fahrzeugaufbau und dem Rad bzw. den ungefederten Massen ermöglicht, so dass in vorteilhafter Weise eine Skyhook-Regelung realisierbar ist.By the concept of the invention is the influence of the direction of force of the damper independently of the direction of movement between the vehicle body and the wheel or allows the unsprung masses, so that advantageously a skyhook control feasible is.

Die Erfindung wird im Folgenden anhand der beigefügten Figur, welche den Aufbau der erfindungsgemäßen Dämpfereinrichtung schematisch darstellt, beispielhaft näher erläutert.The Invention will be described below with reference to the attached figure, which shows the structure the damper device according to the invention schematically illustrates, explained in more detail by way of example.

In der Figur ist der Fahrzeugaufbau mit 1 und die ungefederten Massen mit 6 bezeichnet. Zwischen dem Fahrzeugaufbau und den ungefederten Massen ist, wie aus dem Stand der Technik bekannt, eine Federung 2 zum Auffangen der Fahrbahnstöße angeordnet.In the figure, the vehicle body with 1 and the unsprung masses with 6 designated. Between the vehicle body and the unsprung masses, as known from the prior art, a suspension 2 arranged to catch the road shocks.

Die erfindungsgemäße Dämpfereinrichtung 7 zwischen dem Fahrzeugaufbau 1 und den ungefederten Massen 6 bzw. dem Rad umfasst einen aus dem verstellbaren Dämpfer bzw. Schwingungsdämpfer 3 und eine zu dem Dämpfer 3 parallel geschaltete reversierbare Hydraulikversorgung 4.The damper device according to the invention 7 between the vehicle body 1 and the unsprung masses 6 or the wheel comprises one of the adjustable damper or vibration damper 3 and one to the damper 3 parallel reversible hydraulic supply 4 ,

Für den Fall, dass eine hohe Wärmeentwicklung zu erwarten ist, kann in Reihe zu der Hydraulikversorgung 4 ein zusätzlicher Wärmetauscher/Kühler 5 geschaltet sein. Als Dämpfer 3 kann jeder herkömmliche verstellbare Dämpfer verwendet werden.In the event that a high level of heat is expected, can be in series with the hydraulic supply 4 an additional heat exchanger / cooler 5 be switched. As a damper 3 Any conventional adjustable damper can be used.

Selbstverständlich fällt auch jede konstruktive Ausbildung, insbesondere jede räumliche Anordnung der Bauteile der erfindungsgemäßen Dämpfereinrichtung, an sich sowie zueinander und soweit technisch sinnvoll, unter den Schutzumfang der vorliegenden Ansprüche, ohne die Funktion der Dämpfereinrichtung, wie sie in den Ansprüchen angegeben ist, zu beeinflussen, auch wenn diese Ausbildungen nicht explizit in der Figur oder in der Beschreibung dargestellt sind.Of course, too any constructive training, especially any spatial Arrangement of the components of the damper device according to the invention, in itself and to each other and as far as technically reasonable, under the scope of protection the present claims, without the function of the damper device, as stated in the claims is indicated to influence, even if these training is not are explicitly shown in the figure or in the description.

11
Fahrzeugaufbauvehicle body
22
Federungsuspension
33
Dämpferdamper
44
reversierbare Hydraulikversorgungreversible hydraulic supply
55
Wärmetauscher/KühlerHeat exchanger / cooler
66
ungefederte Massenunsprung masses
77
Dämpfereinrichtungdamper device

Claims (3)

Dämpfereinrichtung für das Fahrwerk eines Kraftfahrzeugs, umfassend einen verstellbaren Dämpfer, dadurch gekennzeichnet, dass sie eine Einrichtung zur externen Beeinflussung der Dämpferbewegung (4) umfasst, derart, dass die Kraftrichtung des Dämpfers (3) unabhängig von der Bewegungsrichtung zwischen dem Fahrzeugaufbau und dem Rad bzw. den ungefederten Massen (6) wählbar bzw. einstellbar ist.Damper device for the chassis of a motor vehicle, comprising an adjustable damper, characterized in that it comprises means for externally influencing the damper movement ( 4 ), such that the direction of force of the damper ( 3 ) regardless of the direction of movement between the vehicle body and the wheel or the unsprung masses ( 6 ) is selectable or adjustable. Dämpfereinrichtung für das Fahrwerk eines Kraftfahrzeugs nach Anspruch 1, dadurch gekennzeichnet, dass die Einrichtung zur externen Beeinflussung der Dämpferbewegung als reversierbare Hydraulikversorgung (4) ausgebildet ist, die parallel zu dem verstellbaren Dämpfer (3) geschaltet ist.Damper device for the chassis of a motor vehicle according to claim 1, characterized in that the device for the external influence of the damper movement as a reversible hydraulic supply ( 4 ) is formed parallel to the adjustable damper ( 3 ) is switched. Dämpfereinrichtung für das Fahrwerk eines Kraftfahrzeugs nach Anspruch 2, dadurch gekennzeichnet, dass ein zusätzlicher Wärmetauscher/Kühler (5) vorgesehen ist, der in der Hydraulikversorgung (4) geschaltet ist.Damper device for the chassis of a motor vehicle according to claim 2, characterized in that an additional heat exchanger / radiator ( 5 ) provided in the hydraulic supply ( 4 ) is switched.
DE200510031766 2005-07-07 2005-07-07 Damping mechanism for motor vehicle chassis, has reversible hydraulic supply connected in parallel with and operates shock absorber in direction independent of relative movement between vehicle bodywork and wheel Withdrawn DE102005031766A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200510031766 DE102005031766A1 (en) 2005-07-07 2005-07-07 Damping mechanism for motor vehicle chassis, has reversible hydraulic supply connected in parallel with and operates shock absorber in direction independent of relative movement between vehicle bodywork and wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510031766 DE102005031766A1 (en) 2005-07-07 2005-07-07 Damping mechanism for motor vehicle chassis, has reversible hydraulic supply connected in parallel with and operates shock absorber in direction independent of relative movement between vehicle bodywork and wheel

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DE102005031766A1 true DE102005031766A1 (en) 2007-01-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012223208A1 (en) * 2012-12-14 2014-06-18 Continental Teves Ag & Co. Ohg Damping/pneumatic spring system for e.g. electric vehicle during winter season, has damping/pneumatic spring unit provided with collecting element for collecting heat energy produced by operation of damping/pneumatic spring unit
EP2052889B1 (en) 2007-10-26 2016-06-15 Strömsholmen AB Hydropneumatic spring-damping device and method of operation of a hydropneumatic spring-damping device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3841771A1 (en) * 1988-12-12 1989-11-09 Daimler Benz Ag Wheel and axle support assembly
DE3825279A1 (en) * 1988-07-26 1990-02-01 Bayerische Motoren Werke Ag Hydraulic arrangement, in particular for stabilising and regulating the level of a vehicle
DE10238657A1 (en) * 2002-08-23 2004-03-18 Daimlerchrysler Ag Spring system for motor vehicles has a shock absorber with sectional areas interlinked by a hydraulic circuit and switching valves in branches of the hydraulic circuit
DE202004001668U1 (en) * 2004-02-04 2004-06-17 Trw Automotive Gmbh Control system for active chassis stabilization

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825279A1 (en) * 1988-07-26 1990-02-01 Bayerische Motoren Werke Ag Hydraulic arrangement, in particular for stabilising and regulating the level of a vehicle
DE3841771A1 (en) * 1988-12-12 1989-11-09 Daimler Benz Ag Wheel and axle support assembly
DE10238657A1 (en) * 2002-08-23 2004-03-18 Daimlerchrysler Ag Spring system for motor vehicles has a shock absorber with sectional areas interlinked by a hydraulic circuit and switching valves in branches of the hydraulic circuit
DE202004001668U1 (en) * 2004-02-04 2004-06-17 Trw Automotive Gmbh Control system for active chassis stabilization

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2052889B1 (en) 2007-10-26 2016-06-15 Strömsholmen AB Hydropneumatic spring-damping device and method of operation of a hydropneumatic spring-damping device
DE102012223208A1 (en) * 2012-12-14 2014-06-18 Continental Teves Ag & Co. Ohg Damping/pneumatic spring system for e.g. electric vehicle during winter season, has damping/pneumatic spring unit provided with collecting element for collecting heat energy produced by operation of damping/pneumatic spring unit

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