WO1999054156A1 - Suspension individuelle de roue pourvue d'une jambe d'amortissement a ressort guidant la roue et articulee par l'intermediaire d'un bras oscillant - Google Patents

Suspension individuelle de roue pourvue d'une jambe d'amortissement a ressort guidant la roue et articulee par l'intermediaire d'un bras oscillant Download PDF

Info

Publication number
WO1999054156A1
WO1999054156A1 PCT/EP1999/001740 EP9901740W WO9954156A1 WO 1999054156 A1 WO1999054156 A1 WO 1999054156A1 EP 9901740 W EP9901740 W EP 9901740W WO 9954156 A1 WO9954156 A1 WO 9954156A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
wheel
rocker
joint
damper
Prior art date
Application number
PCT/EP1999/001740
Other languages
German (de)
English (en)
Inventor
Siegfried Emmann
Wolfgang Hänssler
Christian Mosler
Wolfgang Pedrotti
Original Assignee
Daimlerchrysler 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 Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Publication of WO1999054156A1 publication Critical patent/WO1999054156A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • 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
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/127—Mounting of springs or dampers with the mounting of springs or dampers moving so that the direction of the related force vector can be changed, thus contributing to a variation of the loading of the wheel

Definitions

  • the invention relates to an independent wheel suspension for a vehicle axle with a wheel-guiding spring damper leg per wheel, the spring damper leg being articulated on the vehicle body in its lower region via at least one wishbone or semi-trailing arm, while it is supported on the vehicle body in its upper region.
  • Such independent suspension is known from FR 2 608 973 AI.
  • a steerable, wheel-guiding spring damper leg is described, in which the wheel is mounted on a damper tube via a wheel carrier.
  • the wheel carrier is articulated at its lower end to a wishbone articulated on the vehicle.
  • a coil spring resting on the vehicle body is supported on the damper tube.
  • the coil spring acts on a plate that is mounted on roller bearings in relation to the vehicle body.
  • the entire spring damper leg which is arranged between the wheel carrier and the plate, is pivoted. Since the damper tube is arranged offset to the wheel steering axis, there is a risk that the damper tube will twist relative to the damper piston rod screwed firmly to the plate while changing the steering axis.
  • a cantilever protrudes from the damper tube in the direction of travel, the end of which is articulated via a rod to prevent rotation at the edge of the plate.
  • the present invention is based on the problem of creating an independent wheel suspension according to the spring damper strut principle, in which the spring damper strut is only minimally deformed under the wheel load and which takes up little installation space in the wheel arch area.
  • the problem is solved with the features of the main claim.
  • the spring-damper strut is supported at its upper articulation point by a balance rocker on the vehicle body.
  • the balancing rocker is a lever that uses at least part of the vertical wheel load to form a transverse force with the help of a pendulum support, which counteracts the usual bending force loading the spring damper leg.
  • the transverse force can be adjusted by a specific choice of lever ratios on the balancing rocker so that the forces deforming the spring-damper leg are compensated for at least in the area of the regular driving conditions.
  • the damping of the spring shock absorber responds quickly to almost every road fault.
  • the spring-damper leg is either rigidly guided via the usual lower link or the balance rocker or alternatively is supported on the vehicle body via a trailing arm and a cantilever arm, in the event that the independent wheel suspension is used in a steered axle, it is not pivoted when steering . As a result, the position of the spring-damper leg relative to the wheel can be freely selected.
  • Figure 1 shows an individually suspended, steerable front wheel (1) of a truck front axle.
  • the wheel (1) which i.a. consists of a rim (3) and a tire (2), is seated above a wheel hub (4), which also carries a brake disc (8), on a steering knuckle (5).
  • the steering knuckle (5) is mounted on a wheel carrier (14) so that it can pivot about a wheel steering axis (27).
  • the wheel carrier (14) has a fist-shaped free end, the one
  • a fork (6) formed on the steering knuckle (5) is supported on the steering knuckle pin.
  • the wheel carrier (14) is part of a spring-damper leg (10) which is aligned, for example, parallel to the wheel steering axis (27).
  • the spring damper leg (10) consists e.g. from two coaxial damper and spring elements.
  • the damper element comprises a damper cylinder (11) serving as a support tube, in which a piston carried by a piston rod (15) is guided.
  • a gas pressure suspension sits on the damper cylinder (11).
  • the pressure chamber of this suspension is sealed off from the environment with the aid of a gas spring cylinder (16), a gas spring piston (18) and a gas bellows (17) arranged between them.
  • the gas spring piston (18) is arranged on the damper cylinder (11), 4 while the gas spring cylinder (16) is attached to the piston rod (15).
  • the spring-damper leg (10) is supported at its lower end, for example via a wishbone (21) designed on the vehicle body (9). At its upper end, it is articulated on the vehicle body (9) via a balancing rocker (31).
  • the transverse link (21), which is arranged approximately horizontally here, is mounted on the vehicle body (9) on two consecutive link pivot bearings (24). It is connected to the spring damper leg (10) via the handlebar joint (12). The latter prevents the spring damper leg (10) from pivoting about its longitudinal axis (19) due to its design.
  • a cantilever (42) can be arranged on the support tube (11) to support the braking torque. It is shown in dashed lines in FIG.
  • a trailing arm (41) is suspended from the free end of the cantilever arm (42). The latter is aligned, for example, approximately parallel to the longitudinal axis of the vehicle, so that it can only be recognized as a point in the exemplary embodiment.
  • the joint between the cantilever arm (42) and the trailing arm (41) is e.g. at the intersection between the wheel axle and the extension of a straight line that passes through the handlebar joint (12) on the one hand and through the intersection of the wheel steering axle (27) with the wheel contact area on the other.
  • the compensating rocker (31) has the shape of an angle, the approximately vertical leg of which extends at least in sections along the lateral surface of the spring-damper leg (10), while the approximately horizontally oriented leg is arranged near the gas spring cylinder base, for example.
  • the two legs can be stiffened in front of and behind the spring-damper leg (10), for example via triangular plates. 5
  • the leveling rocker (31) is supported on the vehicle body (9) via the rocker swivel bearing (32).
  • the gas spring cylinder (16) or the piston rod (15) are attached to the balance rocker (31) via the upper rocker joint (34).
  • the joint (34) is embedded, for example, in a rubber element.
  • the linkage to the damper cylinder (11) takes place via a pendulum support (22).
  • the latter is on the vehicle side by means of a lower rocker joint (33)
  • the pendulum support (22) which can be designed as a triangular link, encompasses the damper cylinder (11) or the spring damper leg (10) on both sides in the exemplary embodiment.
  • the static and dynamic load to be absorbed by the wheel shown is introduced into the spring damper leg (10) via the balance rocker (31).
  • the balance rocker (31) tries to turn counterclockwise under the effect of the vertical load component.
  • a transverse force acting horizontally outwards is transmitted to the damper cylinder (11).
  • the latter is subjected to bending by the lever arm formed from the wheel carrier (14) and part of the steering knuckle (5).
  • the bend which elastically deforms the damper cylinder (11) towards the center of the vehicle, causes an increased friction in the spring damper leg (10), at least between the components that move relative to one another and slide along one another. Friction can significantly increase the response time of the damping in the event of road disturbances and thus negatively affect driving comfort. 6
  • the pivot axles of the wishbone (21) on the vehicle body are the
  • the lower link (21) can also be a semi-trailing arm.
  • the strut-side joints (12) and (13) can be shifted towards the wheel (1), so that e.g. the joint (12) lies between the longitudinal axis (19) of the spring damper leg (10) and the wheel pivot axis (27).
  • a spring-damper leg (10) consisting of a damper element and a spring element
  • a construction can also be selected which consists of two spring damper legs lying next to one another. Combinations of several spring elements and one damper element or several damper elements with one spring element are also conceivable. Otherwise, instead of 7 gas pressure suspension described, a mechanical suspension can also be used.

Abstract

L'invention concerne une suspension individuelle de roue destinée à un essieu de véhicule comportant, par roue, une jambe d'amortissement à ressort guidant ladite roue. La jambe d'amortissement à ressort est articulée, dans sa zone inférieure, à la carrosserie du véhicule, par l'intermédiaire d'au moins un bras de suspension transversal ou oblique, tandis que, dans sa partie supérieure, elle repose contre la carrosserie du véhicule. La jambe d'amortissement à ressort repose, au niveau de son point d'articulation supérieur, contre la carrosserie du véhicule, par l'intermédiaire d'un bras oscillant. Ledit bras oscillant est un levier qui, avec l'aide d'un support pendulaire, utilise au moins une partie de la charge verticale de la roue pour former une force transversale qui s'oppose à la force de flexion habituelle s'exerçant sur la jambe d'amortissement à ressort. Grâce à la présente invention, on obtient une suspension individuelle de roue dans laquelle la jambe d'amortissement à ressort ne subit qu'une déformation minimale sous la charge de la roue, et qui ne nécessite qu'un faible espace de montage dans la zone du passage de roue.
PCT/EP1999/001740 1998-04-16 1999-03-17 Suspension individuelle de roue pourvue d'une jambe d'amortissement a ressort guidant la roue et articulee par l'intermediaire d'un bras oscillant WO1999054156A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19816803.9 1998-04-16
DE1998116803 DE19816803C1 (de) 1998-04-16 1998-04-16 Einzelradaufhängung mit einem radführenden, über eine Ausgleichswippe angelenkten Feder-Dämpferbein

Publications (1)

Publication Number Publication Date
WO1999054156A1 true WO1999054156A1 (fr) 1999-10-28

Family

ID=7864674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/001740 WO1999054156A1 (fr) 1998-04-16 1999-03-17 Suspension individuelle de roue pourvue d'une jambe d'amortissement a ressort guidant la roue et articulee par l'intermediaire d'un bras oscillant

Country Status (2)

Country Link
DE (1) DE19816803C1 (fr)
WO (1) WO1999054156A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076360A1 (de) * 2011-05-24 2012-11-29 Zf Friedrichshafen Ag Flachbauende Radaufhängung mit quer umgelenktem Dämpferelement
DE102011076427A1 (de) * 2011-05-25 2012-11-29 Zf Friedrichshafen Ag Flachbauende Radaufhängung mit quer umgelenktem Dämpferelement
DE102011081543A1 (de) * 2011-08-25 2013-02-28 Zf Friedrichshafen Ag Flach bauende Radaufhängung mit Strebe, Wippe und quer umgelenktem Dämpferelement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442682A1 (de) * 1984-11-23 1986-06-05 Audi AG, 8070 Ingolstadt Unabhaengige radaufhaengung fuer kraftfahrzeuge
JPS6299205A (ja) * 1985-10-25 1987-05-08 Honda Motor Co Ltd サスペンシヨン装置
FR2608973A1 (fr) * 1986-12-24 1988-07-01 Peugeot Suspension a jambe telescopique d'une roue directrice de vehicule automobile
EP0346191A1 (fr) * 1988-06-07 1989-12-13 Regie Nationale Des Usines Renault Dispositif correcteur de l'épure de braquage lié à la jambe de force élastique d'une roue directrice d'un véhicule automobile
DE4203057A1 (de) * 1992-02-04 1993-08-05 Bayerische Motoren Werke Ag Radaufhaengung fuer fahrzeuge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442682A1 (de) * 1984-11-23 1986-06-05 Audi AG, 8070 Ingolstadt Unabhaengige radaufhaengung fuer kraftfahrzeuge
JPS6299205A (ja) * 1985-10-25 1987-05-08 Honda Motor Co Ltd サスペンシヨン装置
FR2608973A1 (fr) * 1986-12-24 1988-07-01 Peugeot Suspension a jambe telescopique d'une roue directrice de vehicule automobile
EP0346191A1 (fr) * 1988-06-07 1989-12-13 Regie Nationale Des Usines Renault Dispositif correcteur de l'épure de braquage lié à la jambe de force élastique d'une roue directrice d'un véhicule automobile
DE4203057A1 (de) * 1992-02-04 1993-08-05 Bayerische Motoren Werke Ag Radaufhaengung fuer fahrzeuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 316 (M - 631) 15 October 1987 (1987-10-15) *

Also Published As

Publication number Publication date
DE19816803C1 (de) 1999-05-06

Similar Documents

Publication Publication Date Title
EP0656270B1 (fr) Suspension de roue
EP1989067B1 (fr) Suspension independante pour essieu a bras sureleve
DE102013210338A1 (de) Mehrlenkerhinterachse für ein Fahrzeug
EP1789268B1 (fr) Suspension de vehicule
EP0575354A1 (fr) Systeme de suspension de roues.
EP1169185A1 (fr) Suspension pour roues arriere motrices d'un vehicule a moteur
EP2497660B1 (fr) Axe de véhicule automobile doté d'un axe de direction virtuel
DE102007063544A1 (de) Radaufhängung für eine Vorderachse eines Kraftfahrzeugs
DE19515565B4 (de) Hinterradaufhängung für Kraftfahrzeuge
EP1622781B1 (fr) Bras a logement de support de roue elastique
DE102017001556A1 (de) Fahrzeug mit Stabilisationselement
US6997468B2 (en) Control rod suspension with outboard shock
EP0494394B1 (fr) Suspension de roue indépendante pour véhicules automobiles
EP1955875B1 (fr) Suspension de roue pour véhicules automobiles
DE19756066C2 (de) Fahrzeugachse mit mindestens einem, mindestens einen Hebel aufweisenden, radtragenden Lenker pro Fahrzeugrad
DE1141546B (de) Kraftfahrzeug
EP0464415B1 (fr) Suspension à bras longitudinaux pour véhicules à moteur et remorques
EP1910108B1 (fr) Suspension de roue individuelle
DE19816803C1 (de) Einzelradaufhängung mit einem radführenden, über eine Ausgleichswippe angelenkten Feder-Dämpferbein
US5184842A (en) Vehicle suspension mechanism
DE10011417A1 (de) Doppelpendelachse mit großen Schräglenkern
EP1277603A2 (fr) Suspension de roue indépendante multibras, en particulier suspension d'une roue avant directrice pour véhicule automobile
DE19533154A1 (de) Einzelradaufhängung für die Räder eines Kraftfahrzeugs
DE4339820A1 (de) Aufhängung eines lenkbaren Vorderrades eines Kraftfahrzeugs
DE102016221964B4 (de) Hinterradaufhängung, insbesondere Integral-Hinterradaufhängung mit Luftfeder für ein Fahrzeug

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BR JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase