FR2753932A1 - Automobile wheel suspension, especially for electric automobiles - Google Patents
Automobile wheel suspension, especially for electric automobiles Download PDFInfo
- Publication number
- FR2753932A1 FR2753932A1 FR9611895A FR9611895A FR2753932A1 FR 2753932 A1 FR2753932 A1 FR 2753932A1 FR 9611895 A FR9611895 A FR 9611895A FR 9611895 A FR9611895 A FR 9611895A FR 2753932 A1 FR2753932 A1 FR 2753932A1
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- Prior art keywords
- suspension
- suspension according
- triangle
- arms
- arm
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/005—Ball joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
- B60G2200/14—Independent suspensions with lateral arms
- B60G2200/142—Independent suspensions with lateral arms with a single lateral arm, e.g. MacPherson type
-
- 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
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
-
- 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
- B60G2204/14—Mounting of suspension arms
- B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
-
- 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
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/416—Ball or spherical joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/012—Hollow or tubular elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/124—Constructional features of arms the arm having triangular or Y-shape, e.g. wishbone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/81—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/8201—Joining by welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
La présente invention concerne une suspension de roue de véhicule automobile. The present invention relates to a motor vehicle wheel suspension.
Elle s'applique notamment aux véhicules à propulsion électrique. It applies in particular to vehicles with electric propulsion.
Les figures 1 et 2 représentent en perspective deux solutions connues de suspensions pour ce genre de véhicule, du type à au moins un triangle de suspension. Figures 1 and 2 show in perspective two known solutions of suspensions for this type of vehicle, of the type with at least one suspension triangle.
Selon la suspension de la figure 1, le triangle de suspension 1, situé à l'avant du véhicule, a ses deux bras 2 reliés à un élément 3 de la caisse du véhicule respectivement par deux articulations 4 dont les axes coaxiaux horizontaux s'étendent longitudinalement par rapport au véhicule. Dans cet exemple, l'élément 3 est un longeron. Chaque articulation 4 est fixée entre les branches d'une chape 5 solidaire, par exemple par soudage, du longeron 3. Le triangle de suspension 1 est relié en 6, à l'opposé des articulations 4, à un support de roue comme cela est connu en soi. According to the suspension of FIG. 1, the suspension triangle 1, located at the front of the vehicle, has its two arms 2 connected to an element 3 of the vehicle body respectively by two articulations 4 whose horizontal coaxial axes extend longitudinally with respect to the vehicle. In this example, the element 3 is a beam. Each articulation 4 is fixed between the branches of a yoke 5 secured, for example by welding, to the spar 3. The suspension triangle 1 is connected at 6, opposite the articulations 4, to a wheel support as is known per se.
Selon la suspension de la figure 2, les bras 2 du triangle de suspens ion avant 1 sont reliés au longeron 3 respectivement par deux articulations 4 à axes parallèles verticaux fixées chacune entre les branches d'une chape 5 solidaire du longeron 3. According to the suspension in FIG. 2, the arms 2 of the front suspension triangle 1 are connected to the spar 3 respectively by two articulations 4 with vertical parallel axes each fixed between the branches of a yoke 5 secured to the spar 3.
Ces deux solutions connues de suspension ont pour inconvénient majeur d'utiliser les deux chapes 1 de fixation des articulations 4, mettant ces dernières en porte-à-faux. These two known suspension solutions have the major drawback of using the two yokes 1 for fixing the joints 4, putting the latter in overhang.
La présente invention a pour but d'éliminer cet inconvénient des suspensions connues en proposant une suspens ion de roue de véhicule automobile comprenant au moins un bras relié d'une part à un support de roue et d'autre part à la caisse du véhicule par une articulation et qui est caractérisée en ce que l'articulation est intégrée à un élément solidaire de la caisse du véhicule. The object of the present invention is to eliminate this drawback of known suspensions by proposing a suspension of a motor vehicle wheel comprising at least one arm connected on the one hand to a wheel support and on the other hand to the body of the vehicle by an articulation and which is characterized in that the articulation is integrated into an element integral with the body of the vehicle.
De préférence, l'axe de l'articulation est situé dans le prolongement du bras de suspension. Preferably, the axis of the joint is located in the extension of the suspension arm.
L'élément solidaire de la caisse du véhicule peut être un longeron ou une traverse. The element integral with the vehicle body can be a spar or a cross member.
Selon un mode de réalisation, l'articulation comprend un manchon élastique monté sur une pièce rendue solidaire des bras de suspens ion et logé dans une pièce formant entretoise fixée dans l'élément de la caisse du véhicule. According to one embodiment, the articulation comprises an elastic sleeve mounted on a part made integral with the suspension arms and housed in a part forming a spacer fixed in the element of the vehicle body.
La pièce formant entretoise est fixée dans l'élément de la caisse du véhicule suivant un ajustement permettant un désengagement, de cet élément, de l'ensemble comprenant la pièce formant entretoise, le manchon élastique et l'extrémité du bras de suspens ion en cas de choc engendrant un effort supérieur à celui résultant de l'ajustement de la pièce formant entretoise dans l'élément de la caisse du véhicule. The spacer forming part is fixed in the element of the vehicle body according to an adjustment allowing a disengagement of this element from the assembly comprising the spacer forming part, the elastic sleeve and the end of the suspension arm in the event shock generating a force greater than that resulting from the adjustment of the spacer forming part in the element of the vehicle body.
Lorsque la suspension est du type comprenant deux bras d'un triangle de suspension, ceux-ci sont reliés à l'élément de la caisse du véhicule respectivement par deux articulations intégrées à cet élément, les bras du triangle de suspension étant de préférence constitués de deux tubes pouvant être montés par encastrement sur une pièce de liaison avec le support de roue. When the suspension is of the type comprising two arms of a suspension triangle, these are connected to the element of the vehicle body respectively by two articulations integrated into this element, the arms of the suspension triangle preferably being constituted by two tubes that can be mounted by embedding on a connecting piece with the wheel support.
Selon une variante de réalisation, les tubes s'encastrent respectivement dans deux ouvertures ménagées dans la pièce de liaison. According to an alternative embodiment, the tubes respectively fit into two openings in the connecting piece.
Selon une autre variante de réalisation, les tubes s'emmanchent respectivement sur deux pions solidaires de la pièce de liaison. According to another alternative embodiment, the tubes fit respectively on two pins integral with the connecting piece.
Avantageusement, les pions sont intégrés au boîtier de rotule de la pièce de liaison. Advantageously, the pins are integrated into the ball joint housing of the connecting piece.
Chacune des pièces sur laquelle est monté un manchon élastique est montée sur un embout emmanché dans l'extrémité du tube correspondant d'un bras de suspension. Each of the parts on which an elastic sleeve is mounted is mounted on an end fitting fitted into the end of the corresponding tube of a suspension arm.
Le triangle de suspension est symétrique par rapport à un plan de sorte que les bras de suspension sont identiques. The suspension triangle is symmetrical about a plane so that the suspension arms are identical.
L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant plusieurs modes de réalisation de l'invention et dans lesquels
- la figure 1 représente en perspective un triangle de suspension d'une roue d'un véhicule automobile suivant l'art antérieur
- la figure 2 représente un autre triangle de suspension de roue de véhicule automobile suivant l'art antérieur
- la figure 3 est une vue en perspective d'un triangle de suspension avant d'une roue d'un véhicule automobile conforme à l'invention
- la figure 4 est une vue éclatée du triangle de suspension de la figure 3
- la figure 5 est une vue en perspective éclatée d'un autre mode de réalisation du boîtier de rotule de roue faisant partie du triangle de suspens ion de la figure 4
- la figure 6 est une vue de dessus en coupe d'une articulation utilisée dans l'invention.The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating several modes. of the invention and in which
- Figure 1 shows in perspective a suspension triangle of a wheel of a motor vehicle according to the prior art
- Figure 2 shows another triangle for the suspension of a motor vehicle wheel according to the prior art
- Figure 3 is a perspective view of a front suspension triangle of a wheel of a motor vehicle according to the invention
- Figure 4 is an exploded view of the suspension triangle of Figure 3
- Figure 5 is an exploded perspective view of another embodiment of the wheel joint housing forming part of the suspension triangle of Figure 4
- Figure 6 is a top view in section of a joint used in the invention.
L'invention va être décrite en référence à une suspension avant à triangle de véhicule automobile, mais il est bien entendu qu'elle peut s'appliquer à tout autre type de suspension, telle qu'une suspension à bras tirés, multibras etc. The invention will be described with reference to a triangle front suspension of a motor vehicle, but it is understood that it can be applied to any other type of suspension, such as a suspension with drawn arms, multi-link etc.
En se référant aux figures 3 et 4, la référence 1 désigne un triangle avant d'une suspension de roue d'un véhicule automobile dont les deux bras 2 sont reliés d'une part à un longeron 3 solidaire de la caisse du véhicule par l'intermédiaire respectivement de deux articulations 4 et d'autre part à une pièce 5 de liaison avec un support de roue, cette pièce comprenant, comme cela est connu en soi, un boîtier 6 d'une rotule d'articulation 7. Referring to Figures 3 and 4, the reference 1 designates a front triangle of a wheel suspension of a motor vehicle, the two arms 2 are connected on the one hand to a beam 3 secured to the body of the vehicle by l intermediate respectively of two articulations 4 and on the other hand to a part 5 for connection with a wheel support, this part comprising, as is known per se, a housing 6 of a articulation ball joint 7.
Selon l'invention, chaque articulation 4 est intégrée au longeron 3 et a son axe d'articulation situé dans le prolongement du bras de suspension correspondant 2. Les deux articulations 4 sont parallèles et horizontales en étant sensiblement perpendiculaires au longeron 3. According to the invention, each articulation 4 is integrated into the longitudinal member 3 and has its articulation axis located in the extension of the corresponding suspension arm 2. The two articulations 4 are parallel and horizontal, being substantially perpendicular to the longitudinal member 3.
Comme cela ressort des figures 3 et 4, chaque bras 2 est symétrique par rapport à un plan horizontal passant par l'axe A-A' ou B-B' de ce bras. As can be seen from Figures 3 and 4, each arm 2 is symmetrical with respect to a horizontal plane passing through the axis A-A 'or B-B' of this arm.
Selon une variante, le triangle est symétrique par rapport à un plan vertical perpendiculaire au longeron 3 de sorte que les bras de suspension 2 sont identiques. According to a variant, the triangle is symmetrical with respect to a vertical plane perpendicular to the beam 3 so that the suspension arms 2 are identical.
La figure 6 représente un mode de réalisation préféré d'une articulation 4 reliant le bras 2 correspondant au longeron 3. FIG. 6 represents a preferred embodiment of an articulation 4 connecting the arm 2 corresponding to the spar 3.
Cette articulation se compose d'un manchon élastique 8 monté sur une pièce cylindrique 9 présentant une partie sphérique 9a en étant solidaire de celle-ci et logé dans une pièce formant entretoise 10. Cette dernière est montée à l'intérieur d'une bague 11 elle-même fixée, par exemple par soudage, dans un logement prévu à l'intérieur du longeron 3. This articulation consists of an elastic sleeve 8 mounted on a cylindrical part 9 having a spherical part 9a being integral with the latter and housed in a part forming a spacer 10. The latter is mounted inside a ring 11 itself fixed, for example by welding, in a housing provided inside the spar 3.
La pièce 9 est montée sur un embout 12 solidaire de l'extrémité du bras 2 et fixée sur celui-ci par un écrou 13 engagé sur la partie filetée correspondante de l'embout 12 de manière à maintenir la pièce cylindrique en appui sur un épaulement 2a du bras 2.The piece 9 is mounted on an end piece 12 secured to the end of the arm 2 and fixed thereon by a nut 13 engaged on the corresponding threaded part of the end piece 12 so as to keep the cylindrical piece resting on a shoulder 2a of arm 2.
De préférence, la pièce formant entretoise 10 est fixée dans la bague 11 suivant un ajustement permettant un désengagement, du longeron 3, de l'ensemble comprenant la pièce formant entretoise 10, le manchon élastique 8 et la pièce 9 en cas de choc engendrant un effort supérieur à celui résultant de l'ajustement maintenant la pièce formant entretoise 10 dans la bague 11. Un tel montage permet ainsi un effet dit "de débouchage" de l'articulation 4 en cas d'effort important et de conserver intacts les éléments constitutifs du triangle de suspension 1. Preferably, the piece forming a spacer 10 is fixed in the ring 11 according to an adjustment allowing disengagement, of the spar 3, of the assembly comprising the piece forming a spacer 10, the elastic sleeve 8 and the piece 9 in the event of an impact generating a force greater than that resulting from the adjustment now keeping the piece forming a spacer 10 in the ring 11. Such an assembly thus allows a so-called "uncorking" effect of the joint 4 in the event of significant effort and to keep the constituent elements intact of the suspension triangle 1.
Comme cela ressort plus clairement de la figure 4, les bras 2 du triangle de suspension sont constitués de deux tubes pouvant être montés à l'une de leurs extrémités par encastrement respectivement dans deux ouvertures 6a du boîtier de rotule 6. Chaque embout 12 est encastré ou emmanché à force dans l'extrémité tubulaire du bras 2 opposée à celle encastrée dans l'ouverture correspondante 6a du boîtier de rotule 6. La liaison entre l'extrémité de chaque bras 2 et le boîtier de rotule 6 et celle entre l'autre extrémité de ce bras et l'embout 12 peuvent être ensuite soudées, mais ce sont les liaisons par encastrement susmentionnées qui reprendront les charges du véhicule, délestant alors les soudures. As can be seen more clearly from FIG. 4, the arms 2 of the suspension triangle consist of two tubes which can be mounted at one of their ends by embedding respectively in two openings 6a of the ball joint housing 6. Each end piece 12 is embedded or force-fitted into the tubular end of the arm 2 opposite to that embedded in the corresponding opening 6a of the ball joint housing 6. The connection between the end of each arm 2 and the ball joint housing 6 and that between the other end of this arm and the end-piece 12 can then be welded, but it is the above-mentioned embedding connections which will take over the loads of the vehicle, then shedding the welds.
Selon la variante de réalisation représentée en figure 5, les deux tubes des bras 2 s'emmanchent respectivement sur deux pions cylindriques 14 solidaires du boîtier de rotule 6. According to the variant embodiment shown in FIG. 5, the two tubes of the arms 2 are fitted respectively on two cylindrical pins 14 integral with the ball joint housing 6.
De préférence, les pions 14 sont intégrés au boîtier de rotule 6 qui peut être réalisé par forgeage ou moulage.Preferably, the pins 14 are integrated into the ball joint housing 6 which can be produced by forging or molding.
Lorsque les tubes 2 sont identiques, le triangle de suspens ion 1 comporte les éléments définis précédemment qui peuvent aussi bien servir pour le triangle gauche de suspens ion que le triangle droit de suspens ion du véhicule de sorte que ces deux triangles sont identiques. Même dans les conditions de géométrie imposant l'utilisation de bras 2 différents d'un triangle de suspension, on conserve encore la réalisation de deux triangles de suspension avec les mêmes éléments constitutifs pour le triangle gauche et le triangle droit du véhicule. When the tubes 2 are identical, the suspension triangle ion 1 includes the elements defined above which can be used for the left suspension triangle as well as the right suspension triangle for the vehicle so that these two triangles are identical. Even in the geometry conditions requiring the use of arms 2 different from a suspension triangle, the production of two suspension triangles with the same constituent elements for the left triangle and the right triangle of the vehicle is still retained.
La suspension conforme à l'invention permet d'augmenter la rigidité de la structure du véhicule et de procurer un gain de place pour les éléments mécaniques de celui-ci puisqu'en intégrant les articulations des bras de suspension dans un élément solidaire de la caisse du véhicule, il est possible de réaliser un châssis plus à l'extérieur par rapport à l'axe de la caisse du véhicule. De nombreux autres avantages résultent également de la suspension de l'invention telle que décrite précédemment et comprennent une réduction des coûts d'étude et de fabrication de chaque triangle de suspens ion, une facilité de montage et de démontage de ce triangle, une conception modulaire du triangle et une intégration du boîtier de rotule au triangle. The suspension according to the invention makes it possible to increase the rigidity of the structure of the vehicle and to gain space for the mechanical elements thereof since by integrating the articulations of the suspension arms in an element integral with the body. of the vehicle, it is possible to make a chassis more outside relative to the axis of the vehicle body. Many other advantages also result from the suspension of the invention as described above and include a reduction in the study and manufacturing costs of each suspension triangle, ease of assembly and disassembly of this triangle, a modular design of the triangle and an integration of the ball joint housing into the triangle.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9611895A FR2753932B1 (en) | 1996-09-30 | 1996-09-30 | MOTOR VEHICLE WHEEL SUSPENSION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9611895A FR2753932B1 (en) | 1996-09-30 | 1996-09-30 | MOTOR VEHICLE WHEEL SUSPENSION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2753932A1 true FR2753932A1 (en) | 1998-04-03 |
| FR2753932B1 FR2753932B1 (en) | 2002-01-11 |
Family
ID=9496197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9611895A Expired - Fee Related FR2753932B1 (en) | 1996-09-30 | 1996-09-30 | MOTOR VEHICLE WHEEL SUSPENSION |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2753932B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004002762A1 (en) * | 2002-06-27 | 2004-01-08 | Textron Verbindungstechnik Gmbh & Co. Ohg | Holding element for connecting a rod to the body of a vehicle using an elastic bearing |
| WO2009106071A1 (en) * | 2008-02-29 | 2009-09-03 | Zf Friedrichshafen Ag | Articulated joint and/or bearing unit |
| FR2932415A1 (en) * | 2008-06-13 | 2009-12-18 | Renault Sas | Triangle suspension arm for suspending wheel and chassis connection of motor vehicle, has rods connecting respective supports to ball joint support, and units fixing rods and joint support with each other and provided for forming triangle |
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| DE2460738A1 (en) * | 1974-12-21 | 1976-07-01 | Maschf Augsburg Nuernberg Ag | Mfg method of bearings of limited elasticity - in which an elastomer body is fitted between outer and inner part |
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1996
- 1996-09-30 FR FR9611895A patent/FR2753932B1/en not_active Expired - Fee Related
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|---|---|---|---|---|
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| FR1198223A (en) * | 1957-07-16 | 1959-12-04 | Ehrenreich & Cie A | Fork swing arm designed as a rocket carrier for motor vehicles |
| US3584895A (en) * | 1969-10-07 | 1971-06-15 | Nissan Motor | Automotive suspension mechanism |
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|---|
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| PATENT ABSTRACTS OF JAPAN vol. 013, no. 588 (M - 912) 25 December 1989 (1989-12-25) * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004002762A1 (en) * | 2002-06-27 | 2004-01-08 | Textron Verbindungstechnik Gmbh & Co. Ohg | Holding element for connecting a rod to the body of a vehicle using an elastic bearing |
| WO2009106071A1 (en) * | 2008-02-29 | 2009-09-03 | Zf Friedrichshafen Ag | Articulated joint and/or bearing unit |
| FR2932415A1 (en) * | 2008-06-13 | 2009-12-18 | Renault Sas | Triangle suspension arm for suspending wheel and chassis connection of motor vehicle, has rods connecting respective supports to ball joint support, and units fixing rods and joint support with each other and provided for forming triangle |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2753932B1 (en) | 2002-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20080531 |