FR2486461A1 - REAR SUSPENSION WITH INDEPENDENT WHEELS - Google Patents
REAR SUSPENSION WITH INDEPENDENT WHEELS Download PDFInfo
- Publication number
- FR2486461A1 FR2486461A1 FR8015444A FR8015444A FR2486461A1 FR 2486461 A1 FR2486461 A1 FR 2486461A1 FR 8015444 A FR8015444 A FR 8015444A FR 8015444 A FR8015444 A FR 8015444A FR 2486461 A1 FR2486461 A1 FR 2486461A1
- Authority
- FR
- France
- Prior art keywords
- suspension
- function
- bar
- rear suspension
- independent wheels
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 21
- 235000015842 Hesperis Nutrition 0.000 claims 1
- 235000012633 Iberis amara Nutrition 0.000 claims 1
- 210000000056 organ Anatomy 0.000 description 3
- 230000004584 weight gain Effects 0.000 description 2
- 235000019786 weight gain Nutrition 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/051—Trailing arm twist beam axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/18—Resilient suspensions characterised by arrangement, location or kind of springs having torsion-bar springs only
- B60G11/183—Resilient suspensions characterised by arrangement, location or kind of springs having torsion-bar springs only arranged in a plane transverse to the longitudinal axis of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/20—Semi-rigid axle suspensions
- B60G2200/21—Trailing arms connected by a torsional beam, i.e. twist-beam axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/20—Semi-rigid axle suspensions
- B60G2200/22—Trailing arms connected by a straight torsion bar
-
- 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
- B60G2202/13—Torsion spring
- B60G2202/136—Twist-beam type arrangement
- B60G2202/1362—Twist-beam type arrangement including a second torsional element, e.g. second beam, stabiliser bar or tube
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
SUSPENSION ARRIERE A ROUES INDEPENDANTES, NOTAMMENT POUR VEHICULES AUTOMOBILES, DU TYPE A BRAS TIRE ET A BARRES DE TORSION. SEULE LA FONCTION GUIDAGE EST ASSUREE PAR UN PROFIL DE FAIBLE EPAISSEUR REUNISSANT LES BRAS DE ROUES PAR LEURS EXTREMITES OPPOSEES AUX FUSEES, CELUI-CI N'ENCAISSE PAR AILLEURS PAS LES EFFORTS TRANSVERSAUX DE LA FONCTION ANTI-DEVERS DU TRAIN, CETTE DERNIERE ETANT ASSUREE PAR UNE BARRE SPECIFIQUE A CET EFFET, LOGEE DANS LE PROFIL, ET ASSOCIEE A UNE SECONDE BARRE DE TORSION, DESTINEE A ASSURER PARTIELLEMENT LA FONCTION DE SUSPENSION, DONT LA TOTALITE EST PRISE EN COMPTE PAR LA COMBINAISON DES DEUX BARRES AU MOYEN D'UNE JONCTION MEDIANE TELLE QU'UNE JUMELLE. APPLICATION AUX SUSPENSIONS.REAR SUSPENSION WITH INDEPENDENT WHEELS, ESPECIALLY FOR MOTOR VEHICLES, OF THE TYPE WITH TIRE ARMS AND TORSION BARS. ONLY THE GUIDANCE FUNCTION IS PROVIDED BY A LOW THICKNESS PROFILE JOINING THE WHEEL ARMS BY THEIR ENDS OPPOSED TO THE KNUCKLES, THIS DOES NOT INCLUDE THE CROSS-CUTTING EFFORTS OF THE ANTI-ROLLER FUNCTION OF THE TRAIN, THIS LATTER BEING ENSURED A BAR SPECIFIC TO THIS EFFECT, LOCATED IN THE PROFILE, AND ASSOCIATED WITH A SECOND TORSION BAR, INTENDED TO PARTIALLY ENSURE THE SUSPENSION FUNCTION, THE WHOLE OF WHICH IS TAKEN INTO ACCOUNT BY THE COMBINATION OF THE TWO BARS BY MEANS OF A MEDIAN JUNCTION AS A TWIN. APPLICATION TO SUSPENSIONS.
Description
Suspension arrière à roues indépendantes.Rear suspension with independent wheels.
La présente invention se rapporte à une suspension arrière à roues indépendantes, notamment pour véhicules automobiles, du type à roues tirées et à barres de torsion.The present invention relates to a rear suspension with independent wheels, in particular for motor vehicles, of the type with pulled wheels and torsion bars.
Dans le calcul d'un train de suspension, trois paramètres essentiels sont à prendre en compte - Le guidage des roues, permettant le maintien Cî parallèlisme des
plans qui les comprennent. Ceci peut être obtenu par une structure
rigide, tel queux profilé en L, en U, cylindrique, etc. qui est le
plus souvent fixée perpendiculairement à l'extrémité des bras oppo
sée aux roues.In the calculation of a suspension train, three essential parameters have to be taken into account - The steering of the wheels, allowing the parallelism of the
plans that include them. This can be achieved by a structure
rigid, such as L-shaped, U-shaped, cylindrical, etc. who is the
more often fixed perpendicular to the end of the oppo arms
wheeled.
- La fonction anti-dévers, qui consiste à réunir les bras de roues
par une barre de torsion, afin de répartir sur l'un, au moins une
partie des sollicitations subies par l'autre.- The anti-roll function, which consists of bringing the wheel arms together
by a torsion bar, in order to distribute over one, at least one
part of the stresses suffered by the other.
- La fonction suspension elle-meme, qui peut être assumée par des
barres de torsion, des ressorts hélicoïdaux, à lames, etc.- The suspension function itself, which can be assumed by
torsion bars, coil springs, leaf springs, etc.
Un gain de poids, recherché de façon systématique passe par l'optimisation de chacune de ces fonctions. TEn réalité, ceci n'est pas réalisé dans la pratique actuelle, car pour des raisons de simplification, on groupe généralement deux de ces paramètres en un seul organe.Weight gain, systematically sought by optimizing each of these functions. In reality, this is not achieved in current practice, because for reasons of simplification, two of these parameters are generally grouped in a single organ.
Ceci implique donc un compromis entre leurs caractéristiques, ce qui va à l'encontre de l'économie de poids.This therefore implies a compromise between their characteristics, which goes against the weight saving.
C'est ainsi que l'on a réalisé des trains arrières de suspension par bras tirés dans lesquels le guidage des roues d'une part, et la fonc
la tion anti-dévers ou/suspension d'autre part étaient assuréespar un même organe.This is how rear suspension trains were produced by pulled arms in which the guide of the wheels on the one hand, and the function
the anti-tilt or / suspension action on the other hand were provided by the same body.
La fonction guidage peut être remplie par un profilé de faible épaisseur, la raideur pouvant être donnée, par exemple, par une surface suffisante de ses ailes (dans le cas d'un profilé en U ou en L, entre autres). The guidance function can be fulfilled by a thin profile, the stiffness can be given, for example, by a sufficient surface of its wings (in the case of a U or L profile, among others).
Par contre, l'une des deux autres fonctions impliquant une masse de métal relativement plus importante pour faire face aux contraintes subies, on est appelé à surdimensionner considérablement l'organe dans lequel les deux fonctions sont associées.On the other hand, one of the two other functions involving a relatively larger mass of metal to cope with the stresses undergone, one is called upon to considerably oversize the organ in which the two functions are associated.
L'objet de la présente invention consiste essentiellement à laisser le guidage à part, en l'assumant au moyen d'une traverse calculée de façon à n'utiliser que la masse de létal nécessaire à cette fonction, et à associer les deux fonctions fflnti déverss et suspension dont les natures sont plus proches que celles des fonctions combinées selon les choix différentsfaitsantérieurement. Cette association, faite au moyen de la réunion de deux barres dont chacune est le siège de l'une desfonctionsprécédentes (anti-dévers et suspension), permet l'optimisation des caractéristiques de chacune d'entre-elles et par suite un gain de poids.The object of the present invention consists essentially in leaving the guidance apart, assuming it by means of a cross-member calculated so as to use only the mass of lethal necessary for this function, and in combining the two fflnti functions superelevation and suspension whose natures are closer than those of the functions combined according to the different choices made previously. This association, made by combining two bars, each of which is the seat of one of the previous functions (anti-tilt and suspension), allows the optimization of the characteristics of each of them and consequently a gain in weight. .
L'invention sera décrite au regard des figure 1 et 2 ci-jointes, données à titre d'exemple non limitatif et qui représentent respectivement :
- la figure 1 :
Une vue en plan du train selon l'invention.The invention will be described with reference to attached figures 1 and 2, given by way of nonlimiting example and which represent respectively:
- Figure 1:
A plan view of the train according to the invention.
v
- la figure 2
Une section suivant A As de la figure précédente.v
- figure 2
A section following A As in the previous figure.
En référence à la figure 1, on voi v es bras tirés 1-2 comportent à l'une de leurs extrémités les fusées de roues 3-4, tandis que leurs extrémités opposées sont fixées à la caisse au moyen d'articulations élastiques 5-6.With reference to FIG. 1, we see the pulled arms 1-2 comprise at one of their ends the wheel knuckles 3-4, while their opposite ends are fixed to the body by means of elastic joints 5- 6.
Ces deux bras 1-2 sont reliés entre-eux par un profil 7 présentant une grande inertie de flexion et une très faible inertie de torsion.These two arms 1-2 are interconnected by a profile 7 having a large bending inertia and a very low torsional inertia.
Ceci est obtenu par exemple au moyen d'un profil en L de faible épaisseur (de l'ordre de 3 mm), comportant la masse juste nécessaire à sa fonction de guidage, puisque non destiné à assumer la fonction anti-dévers du train. This is obtained for example by means of a thin L-shaped profile (of the order of 3 mm), comprising the mass just necessary for its guiding function, since it is not intended to assume the anti-roll function of the train.
Cette dernière est prise en compte par une barre transversale 8, logée dans le profil précédent, reliée aux bras 1-2, dont les caractéristiques massiques et mécaniques sont précisément ajustées dans ce but.The latter is taken into account by a crossbar 8, housed in the previous profile, connected to the arms 1-2, whose mass and mechanical characteristics are precisely adjusted for this purpose.
La fonction suspension est assurée pour partie par une demi-barre 9, préférentiellement assistée par une seconde 9', réunies par leurs extrémités extérieures 10-10' à la caisse, et par leurs extrémités opposées à une jumelle 11, elle-même fixée au milieu de la barre 8.The suspension function is provided in part by a half-bar 9, preferably assisted by a second 9 ', joined by their outer ends 10-10' to the body, and by their ends opposite to a binocular 11, itself fixed to the middle of bar 8.
La fonction suspension est donc réalisée selon l'invention dans sa totalité non seulement par la ou les demi-barres 9-9', mais également et en combinaison, par la barre anti-dévers 8, du fait de la liaison médiane effectuée à l'aide de la jumelle Il (voir figure 2).The suspension function is therefore carried out according to the invention in its entirety not only by the half-bar (s) 9-9 ', but also and in combination, by the anti-roll bar 8, due to the median connection made to the using the binocular II (see figure 2).
Ceci a pour conséquence que l'on dispose pour la suspension d'une barre de torsion qui dans son ensemble (8 + 9) est plus grande que celle qui est apparemment prévue à cet effet (9), les contraintes y sont par conséquent plus faibles par unité de longueur et mieux réparties.This has the consequence that there is available for the suspension of a torsion bar which as a whole (8 + 9) is larger than that which is apparently provided for this purpose (9), the constraints are consequently more weak per unit of length and better distributed.
Ces barres 8 et 9 encaissent également les efforts transversaux qu'elles transmettent à la caisse. On voit bien que la dissociation des trois paramètres de base illustrée par ltexeSple ci-dessus est effective et permet ainsi un ajustage séparé des différents organes aux valeurs optimales calculées pour chacun d9entre-eux ; ceci entraine ainsi un gain de poids appréciable, puisqu'il est de l'ordre de 5 kg pour un ensemble voisin de 30 kg. These bars 8 and 9 also collect the transverse forces which they transmit to the body. We can see that the dissociation of the three basic parameters illustrated by ltexeSple above is effective and thus allows a separate adjustment of the different organs to the optimal values calculated for each of them; this thus results in an appreciable weight gain, since it is of the order of 5 kg for an assembly close to 30 kg.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8015444A FR2486461A1 (en) | 1980-07-11 | 1980-07-11 | REAR SUSPENSION WITH INDEPENDENT WHEELS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8015444A FR2486461A1 (en) | 1980-07-11 | 1980-07-11 | REAR SUSPENSION WITH INDEPENDENT WHEELS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2486461A1 true FR2486461A1 (en) | 1982-01-15 |
| FR2486461B1 FR2486461B1 (en) | 1984-08-03 |
Family
ID=9244096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8015444A Granted FR2486461A1 (en) | 1980-07-11 | 1980-07-11 | REAR SUSPENSION WITH INDEPENDENT WHEELS |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2486461A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2533507A1 (en) * | 1982-09-23 | 1984-03-30 | Peugeot | DEVICE FOR THE TRANSVERSAL RETENTION OF AN ANTI-DEVICE BAR AND ITS APPLICATION TO A MOTOR VEHICLE WHEEL TRAIN |
| FR2544259A1 (en) * | 1983-04-12 | 1984-10-19 | Renault | Rear suspension with independent wheels for a motor vehicle |
| EP0133829A1 (en) * | 1983-08-10 | 1985-03-06 | Regie Nationale Des Usines Renault | Independent rear wheel suspension |
| FR2560828A1 (en) * | 1984-03-08 | 1985-09-13 | Aerospatiale | SUSPENSION WITH SWING ARMS FOR A TWO-WHEEL TRAIN OF A VEHICLE AND A SET OF PARALLEL TUBES FOR SUCH A SUSPENSION |
| WO1986000854A1 (en) * | 1984-07-25 | 1986-02-13 | Gkn Technology Limited | Vehicle suspension |
| FR2867420A1 (en) * | 2004-03-15 | 2005-09-16 | Renault Sas | FLEXIBLE AXLE OF A MOTOR VEHICLE WITH TWO ANTI-DEVERS BARS AND CORRESPONDING ASSEMBLY METHOD |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3175842A (en) * | 1962-04-05 | 1965-03-30 | Lubbock Machine & Supply | Crank arm axle |
-
1980
- 1980-07-11 FR FR8015444A patent/FR2486461A1/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3175842A (en) * | 1962-04-05 | 1965-03-30 | Lubbock Machine & Supply | Crank arm axle |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4550932A (en) * | 1982-09-23 | 1985-11-05 | Societe Anonyme Automobiles Peugeot | Device for transversely maintaining an anti-roll bar |
| EP0104990A1 (en) * | 1982-09-23 | 1984-04-04 | Automobiles Peugeot | Device for transversally holding a stabiliser bar in its position |
| FR2533507A1 (en) * | 1982-09-23 | 1984-03-30 | Peugeot | DEVICE FOR THE TRANSVERSAL RETENTION OF AN ANTI-DEVICE BAR AND ITS APPLICATION TO A MOTOR VEHICLE WHEEL TRAIN |
| FR2544259A1 (en) * | 1983-04-12 | 1984-10-19 | Renault | Rear suspension with independent wheels for a motor vehicle |
| EP0133829A1 (en) * | 1983-08-10 | 1985-03-06 | Regie Nationale Des Usines Renault | Independent rear wheel suspension |
| EP0156705A1 (en) * | 1984-03-08 | 1985-10-02 | AEROSPATIALE Société Nationale Industrielle | Pivotal arm-type suspension for a set of two vehicle wheels and parallel tube assembly for the like suspension |
| FR2560828A1 (en) * | 1984-03-08 | 1985-09-13 | Aerospatiale | SUSPENSION WITH SWING ARMS FOR A TWO-WHEEL TRAIN OF A VEHICLE AND A SET OF PARALLEL TUBES FOR SUCH A SUSPENSION |
| WO1986000854A1 (en) * | 1984-07-25 | 1986-02-13 | Gkn Technology Limited | Vehicle suspension |
| GB2188011A (en) * | 1984-07-25 | 1987-09-23 | Gkn Technology Ltd | Vehicle suspension |
| US4725074A (en) * | 1984-07-25 | 1988-02-16 | Gkn Technology Limited | Vehicle suspension |
| FR2867420A1 (en) * | 2004-03-15 | 2005-09-16 | Renault Sas | FLEXIBLE AXLE OF A MOTOR VEHICLE WITH TWO ANTI-DEVERS BARS AND CORRESPONDING ASSEMBLY METHOD |
| WO2005092647A1 (en) * | 2004-03-15 | 2005-10-06 | Renault S.A.S | Motor vehicle flexible axle having two stabilizer bars and a corresponding assembling method |
| JP2007529361A (en) * | 2004-03-15 | 2007-10-25 | ルノー・エス・アー・エス | Flexible axle for automobiles with two anti-roll bars and corresponding assembly method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2486461B1 (en) | 1984-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse | ||
| ST | Notification of lapse | ||
| ST | Notification of lapse |