FR2684930A1 - Dynamic suspension for vehicles - Google Patents
Dynamic suspension for vehicles Download PDFInfo
- Publication number
- FR2684930A1 FR2684930A1 FR9108777A FR9108777A FR2684930A1 FR 2684930 A1 FR2684930 A1 FR 2684930A1 FR 9108777 A FR9108777 A FR 9108777A FR 9108777 A FR9108777 A FR 9108777A FR 2684930 A1 FR2684930 A1 FR 2684930A1
- Authority
- FR
- France
- Prior art keywords
- bar
- bars
- chassis
- anchored
- hub
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 8
- 239000000969 carrier Substances 0.000 claims abstract 4
- 238000005086 pumping Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/008—Attaching arms to unsprung part of vehicle
-
- 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
- B60G21/007—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces means for adjusting the wheel inclination
-
- 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
-
- 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
- B60G2200/144—Independent suspensions with lateral arms with two lateral arms forming a parallelogram
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
SUSPENSION DYNAMIQUE POUR VÉHICULES
La présente invention concerne une cinématique et dynamique de suspension de voiture.DYNAMIC SUSPENSION FOR VEHICLES
The present invention relates to kinematics and dynamics of car suspension.
Schématiquement, le but est d'obtenir, dans un plan perpendiculaire à l'axe de la voiture, un déplacement de l'axe de la roue tel que cet axe reste parallèle, en réduisant au minimum les variations de voie, et en supprimant les variations de carrossage. Schematically, the goal is to obtain, in a plane perpendicular to the axis of the car, a displacement of the axis of the wheel such that this axis remains parallel, by reducing to the minimum the variations of lane, and by eliminating the camber variations.
La solution la plus simple, la plus efficace et la plus répandue, surtout en compétition, est d'articuler deux barres ou deux triangles superposés. The simplest, most effective and most widespread solution, especially in competition, is to articulate two bars or two superimposed triangles.
Si nous disposons des barres de même longueur avec des points d'ancrage perpendiculaires et parallèles, ou si notre châssis prend du pompage (mouvement de haut en bas, c'est à dire vertical), aucune variation de carrossage n'a lieu mais une importante variation de voie se produit. (voir Fig. 1)
Si notre châssis prend du roulis (inclinaison du châssis), nous enregistrons une variation de carrossage comme le montre la Fig. 2, ce qui entraîne un comportement négatif de la tenue de route dans le premier cas, et détériore la motricité dans le second cas.If we have bars of the same length with perpendicular and parallel anchor points, or if our chassis takes pumping (movement from top to bottom, ie vertical), no variation in camber takes place but a significant channel variation occurs. (see Fig. 1)
If our chassis rolls (chassis tilt), we record a camber variation as shown in Fig. 2, which leads to a negative behavior of the road holding in the first case, and deteriorates the motor skills in the second case.
L'évolution dûe à la compétition automobile a permit de faire évoluer les points d'ancrage et les longueurs des barres ou des triangles (voir Fig. 3)
Comme nous le constatons, nous avons toujours des variations de carrossage.The evolution due to motor racing has made it possible to change the anchor points and the lengths of the bars or triangles (see Fig. 3)
As we can see, we still have camber variations.
Mon invention permet de supprimer ces variations de carrossage et de réduire les variations de voie au minimum. II s'agit, en effet, d'un concept totalement différent des barres et triangles connus jusqu'à présent (voir Fig. 4):
Les roues droites et gauche sont reliées entre elles par des barres de liaisons de même longueur: - barre supérieur A
- barre inférieure B
Pour solidariser l'ensemble roues / barres au châssis, nous utilisons la barre C (en bas), qui est articulée du châssis et qui rejoint le point d'articulation de la barre B, ce qui rend solidaire le bas.My invention eliminates these camber variations and reduces track variations to a minimum. It is, in fact, a completely different concept from the bars and triangles known up to now (see Fig. 4):
The right and left wheels are connected together by connecting bars of the same length: - upper bar A
- lower bar B
To secure the wheel / bar assembly to the chassis, we use bar C (below), which is articulated from the chassis and which joins the articulation point of bar B, which makes the bottom integral.
La barre C peut être dessus (Fig.4), dessous ou derrière la barre B. Bar C can be above (Fig. 4), below or behind bar B.
L'ensemble de la partie supérieure est reliée à la biellette coulissante (D) pour compenser les variations de longueur dues au pompage. Elle est actionnée par un boîtier (type direction), lui-même commandé par un système hydraulique ou pneumatique gouverné par la force centrifuge (ex: Citroën XM
Hydroactive) plus éventuellement deux cellules photo-électriques qui peuvent prendre en compte les variations de niveau de la route ou de la piste. The entire upper part is connected to the sliding link (D) to compensate for variations in length due to pumping. It is actuated by a box (steering type), itself controlled by a hydraulic or pneumatic system governed by centrifugal force (ex: Citroën XM
Hydroactive) plus possibly two photocells which can take into account the level variations of the road or the track.
Le châssis pourra prendre de l'inclinaison (roulis), n'entraînera pas de variation de carrossage puisque le boîtier qui commande la biellette (D) la corrigera autant qu'il est nécessaire pour maintenir les roues perpendiculaires au sol. (voir Fig. 5)
Si le châssis prend du pompage, aucune variation de carrossage n'a lieu puisque les barres A et B sont de même longueur. La barre C entraînera un léger déplacement vers la droite ou la gauche de l'ensemble roue/barres (A et
B), étant donné que la barre C décrit un arc de cercle;
Selon le mouvement du pompage, cette variation sera infime étant donnée la longueur des barres.The chassis may take a tilt (roll), will not cause any camber variation since the box which controls the link (D) will correct it as much as is necessary to keep the wheels perpendicular to the ground. (see Fig. 5)
If the chassis takes pumping, no camber variation takes place since the bars A and B are the same length. Bar C will cause a slight shift to the right or left of the wheel / bars assembly (A and
B), since the bar C describes an arc of a circle;
Depending on the movement of the pumping, this variation will be minimal given the length of the bars.
Elle sera compensée lors des grands débattements par le boîtier (Voir Fig. 6)
Conclusion
Cette suspension peut s'appliquer sur des voitures de haut de gamme ou plus encore, de compétition, milieu dans lequel les largeurs des pneumatiques imposent un minimum de variations de carrossage, ce qui oblige actuellement les constructeurs à avoir des débattements réduits pour éviter ces mêmes variations). It will be compensated during large deflections by the housing (See Fig. 6)
Conclusion
This suspension can be applied to high-end cars or even more, competition cars, an environment in which the widths of the tires impose a minimum of camber variations, which currently requires manufacturers to have reduced deflections to avoid these same variations).
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9108777A FR2684930A1 (en) | 1991-07-08 | 1991-07-08 | Dynamic suspension for vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9108777A FR2684930A1 (en) | 1991-07-08 | 1991-07-08 | Dynamic suspension for vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2684930A1 true FR2684930A1 (en) | 1993-06-18 |
Family
ID=9415014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9108777A Pending FR2684930A1 (en) | 1991-07-08 | 1991-07-08 | Dynamic suspension for vehicles |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2684930A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR45291E (en) * | 1934-10-04 | 1935-07-22 | Colaert Freres | Independent wheel suspension for motor vehicles and the like |
US2112133A (en) * | 1935-05-27 | 1938-03-22 | Packard Motor Car Co | Motor vehicle |
FR1069161A (en) * | 1952-12-18 | 1954-07-05 | Stabilizing suspension device of a vehicle | |
DE1046508B (en) * | 1956-03-31 | 1958-12-11 | Maschf Augsburg Nuernberg Ag | Support of the frame of a vehicle by means of an intermediate frame |
US2956814A (en) * | 1957-11-06 | 1960-10-18 | A Lee Clark | Automobile suspension system |
EP0096345A2 (en) * | 1982-06-07 | 1983-12-21 | Nissan Motor Co., Ltd. | Compliance steer control arrangement for automotive vehicle suspension |
US4854603A (en) * | 1988-06-24 | 1989-08-08 | Onofrio Scaduto | Constant camber suspension system |
-
1991
- 1991-07-08 FR FR9108777A patent/FR2684930A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR45291E (en) * | 1934-10-04 | 1935-07-22 | Colaert Freres | Independent wheel suspension for motor vehicles and the like |
US2112133A (en) * | 1935-05-27 | 1938-03-22 | Packard Motor Car Co | Motor vehicle |
FR1069161A (en) * | 1952-12-18 | 1954-07-05 | Stabilizing suspension device of a vehicle | |
DE1046508B (en) * | 1956-03-31 | 1958-12-11 | Maschf Augsburg Nuernberg Ag | Support of the frame of a vehicle by means of an intermediate frame |
US2956814A (en) * | 1957-11-06 | 1960-10-18 | A Lee Clark | Automobile suspension system |
EP0096345A2 (en) * | 1982-06-07 | 1983-12-21 | Nissan Motor Co., Ltd. | Compliance steer control arrangement for automotive vehicle suspension |
US4854603A (en) * | 1988-06-24 | 1989-08-08 | Onofrio Scaduto | Constant camber suspension system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
TP | Transmission of property |
Free format text: BO 94/13, PAGES: 149, IL Y A LIEU DE REMPLACER: LE BREVET NO 9108777 PAR: LE BREVET NO 9108775 |