FR2670716A1 - Safety device mounted on an active anti-roll hydraulic cylinder - Google Patents
Safety device mounted on an active anti-roll hydraulic cylinder Download PDFInfo
- Publication number
- FR2670716A1 FR2670716A1 FR9016080A FR9016080A FR2670716A1 FR 2670716 A1 FR2670716 A1 FR 2670716A1 FR 9016080 A FR9016080 A FR 9016080A FR 9016080 A FR9016080 A FR 9016080A FR 2670716 A1 FR2670716 A1 FR 2670716A1
- Authority
- FR
- France
- Prior art keywords
- hydraulic
- cylinder
- safety device
- hydraulic cylinder
- distributors
- 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
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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
- B60G21/055—Stabiliser bars
- B60G21/0551—Mounting means therefor
- B60G21/0553—Mounting means therefor adjustable
-
- 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
- B60G21/10—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces not permanently interconnected, e.g. operative only on acceleration, only on deceleration or only at off-straight position of steering
- B60G21/106—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces not permanently interconnected, e.g. operative only on acceleration, only on deceleration or only at off-straight position of steering transversally
-
- 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
- B60G2202/135—Stabiliser bar and/or tube
-
- 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
- B60G2202/413—Hydraulic actuator
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
- B60G2600/08—Failure or malfunction detecting means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
DlSPOEilllF DE SECURflE MONTE SUR UN VERIN HYDRAWOUE D'ANIIROULIS ACTIF
La présente invention a pour objet un dispositif de sécurité monté sur un vérin hydraulique d'anti-roulis actif associé à une barre anti-roulis pour véhicule automobile.SAFETY DlSPOEilllF MOUNTED ON A HYDRAWOOD JACK OF ACTIVE ANIIROULIS
The present invention relates to a safety device mounted on an active anti-roll hydraulic cylinder associated with an anti-roll bar for a motor vehicle.
Elle vise également un véhicule d'un type quelconque équipé de ce dispositif.It also relates to a vehicle of any type equipped with this device.
Elle s'applique à un dispositif de liaison de la barre anti-roulis avec des bras de suspension qui portent les roues et dans lequel une des extrémités de la barre anti-roulis est reliée au bras de suspension qui lui fait face par une biellette et l'autre extrêmité est reliée à l'autre bras de suspension par un vérin hydraulique.It applies to a device for connecting the anti-roll bar with suspension arms which carry the wheels and in which one of the ends of the anti-roll bar is connected to the suspension arm which faces it by a link and the other end is connected to the other suspension arm by a hydraulic cylinder.
Le brevet PCf WO 88/07455 décrit un système où un verin hydraulique piloté en déplacement ou en effort est mis en lieu et place d'une des biellettes de liaison de la barre anti-roulis avec le bras de suspension afin de contrôler l'assiette du véhicule en virage. La manoeuvre de ce vérin est obtenue par un circuit hydraulique piloté par des trames qui sont commandées par différents moyens comme des capteurs d'accélérations, etc...PCf patent WO 88/07455 describes a system where a hydraulic cylinder controlled in displacement or in force is put in place of one of the connecting rods of the anti-roll bar with the suspension arm in order to control the attitude of the vehicle when cornering. The actuation of this jack is obtained by a hydraulic circuit controlled by frames which are controlled by different means such as acceleration sensors, etc.
L'inconvénient d'un tel système est qu'il est dangereux en
cas de défaillance de la vanne hydraulique surtout si cette
défaillance se produit pendant que le système anti-roulis est
sollicité (virage, grande vitesse, mauvais état de la route,
etc...) En effet, lorsqu'une panne se produit dans le
système, soit le vérin est fou et il n'assure plus sa
fonction de biellette de longueur fixe, soit le vérin reste
bloqué dans une position quelconque et il est alors une biellette de longueur incompatible, ce qui dans tous les cas peut nuire dangereusement au comportement du véhicule.The downside of such a system is that it is dangerous in
failure of the hydraulic valve especially if this
failure occurs while the anti-roll system is
stressed (cornering, high speed, poor road condition,
etc ...) Indeed, when a failure occurs in the
system, either the cylinder is crazy and it no longer ensures its
fixed length link function, i.e. the cylinder remains
blocked in any position and there is then a rod of incompatible length, which in any case can dangerously harm the behavior of the vehicle.
La présente invention se propose de fournir un dispositif de sécurité associé à un tel vérin hydraulique destiné à une fonction d'anti-roulis actif.The present invention proposes to provide a safety device associated with such a hydraulic cylinder intended for an active anti-roll function.
En mode de fonctionnement normal, c'est-à- dire hors panne, le vérin est piloté par un dispositif générateur de pression hydraulique et l'huile sous pression arrive directement dans l'une ou l'autre des deux chambres dudit vérin après avoir traversé librement les distributeurs placés en amont desdites chambres.In normal operating mode, that is to say without failure, the cylinder is controlled by a hydraulic pressure generating device and the pressurized oil arrives directly in one or the other of the two chambers of said cylinder after having freely crossed the distributors placed upstream of said chambers.
Lorsqu'une panne intervient, elle est détectée soit par le système lui-même, soit par des capteurs. Les distributeurs placés en amont des chambres qui sont pilotés soit électriquement soit hydrauliquement changent alors d'état et mettent les deux chambres en communication à travers un circuit de sécurité. Le vérin est alors isolé du circuit de pilotage décrit plus haut.When a fault occurs, it is detected either by the system itself or by sensors. The distributors placed upstream of the chambers which are controlled either electrically or hydraulically then change state and put the two chambers in communication through a safety circuit. The jack is then isolated from the control circuit described above.
Le dispositif de sécurité est un circuit secondaire qui comprend deux clapets anti-retour pilotés et disposés sur une canalisation hydraulique qui relie les deux chambres du vérin. L'orientation de ces clapets est telle qu'ils interdisent le passage de l'huile d'une chambre vers l'autre lorsqu'ils ne sont pas pilotés. Le pilotage de chacun de ces clapets se fait par une canalisation qui débouche dans la partie médiane du cylindre du vérin hydraulique. Le vérin hydraulique est conçu de telle sorte que le joint d'étanchéité de son piston est sufisamment large pour obturer complètement l'orifice pratique dans la partie médiane du cylindre et dans lequel débouche la canalisation de pilotage des deux clapets anti-retour. The safety device is a secondary circuit which includes two non-return valves piloted and arranged on a hydraulic pipe which connects the two chambers of the jack. The orientation of these valves is such that they prevent the passage of oil from one chamber to the other when they are not controlled. Each of these valves is piloted by a pipe which opens into the middle part of the cylinder of the hydraulic cylinder. The hydraulic cylinder is designed so that the seal of its piston is large enough to completely close the practical orifice in the middle part of the cylinder and into which opens the piloting pipe of the two non-return valves.
En cas de panne du circuit de commande du vérin hydraulique, au moment où cette panne se produit, le piston du vérin occupe une position quelconque dans le cylindre: - Si le piston se trouve en dehors de la position médiane,
et que les efforts qui lui sont appliqués sont dirigés
dans une direction qui tendent à éloigner encore plus le
piston de cette position médiane, il n'y a pas de
pression dans la canalisation de pilotage qui débouche
dans la partie médiane du cylindre : les clapets
anti-retour ne sont pas pilotés, et ils interdisent au
piston de s'éloigner de la position où il se trouve.In the event of a failure of the hydraulic cylinder control circuit, when this failure occurs, the cylinder piston occupies any position in the cylinder: - If the piston is outside the middle position,
and that the efforts applied to it are directed
in a direction that tend to move the
piston from this middle position there is no
pressure in the pilot line which opens
in the middle part of the cylinder: the valves
check valves are not piloted, and they prohibit
piston to move away from the position where it is located.
- Si le piston se trouve en dehors de la position médiane,
mais que les efforts qui lui sont appliqués sont dirigés
dans une direction qui tendent à le rapprocher de la
position médiane, il se produit une pression dans la
canalisation de pilotage qui débouche dans la partie
médiane du cylindre les clapets anti-retour sont alors
débloqués et la communication s'établit entre les deux
chambres du vérin. Le piston se déplace dans le cylindre
et lorsque le joint d'étanchéité dudit piston vient
obturer l'orifice dans lequel débouche la canalisation
de pilotage, la pression dans cette canalisation chute
et les clapets anti-retour se bloquent. Le piston ne
peut alors osciller que d'une amplitude correspondant à
l'obturation de l'orifice déjà cité par le joint du
piston du vérin.- If the piston is outside the middle position,
but that the efforts applied to it are directed
in a direction that tend to bring it closer to the
middle position there is pressure in the
piloting pipeline which leads into the section
middle of the cylinder the check valves are then
unlocked and communication is established between the two
cylinder chambers. The piston moves in the cylinder
and when the seal of said piston comes
close the hole in which the pipe opens
piloting, the pressure in this pipe drops
and the non-return valves are blocked. The piston does not
can then oscillate only by an amplitude corresponding to
the closure of the orifice already mentioned by the seal of the
cylinder piston.
- Si le piston se trouve exactement en position médiane,
il ne peut osciller que d'une amplitude correspondant au
recouvrement de l'orifice du conduit de pilotage des
clapets anti-retour par le joint du piston. - If the piston is exactly in the middle position,
it can only oscillate by an amplitude corresponding to the
covering the orifice of the pilot pipe
non-return valves through the piston seal.
Une capacité hydraulique est interposée entre les deux clapets anti-retour pour compenser la différence de volume entre la chambre libre du vérin et la chambre occupée par la tige du vérin.A hydraulic capacity is interposed between the two non-return valves to compensate for the difference in volume between the free chamber of the cylinder and the chamber occupied by the rod of the cylinder.
Les figures annexées illustrent l'invention.The appended figures illustrate the invention.
- La figure 1 représente l'implantation du vérin
hydraulique sur un véhicule.- Figure 1 shows the location of the cylinder
hydraulics on a vehicle.
- La figure 2 représente le système de commande en
fonctionnement normal.- Figure 2 shows the control system in
normal running.
- La figure 3 représente le système de commande en panne
avec un effort qui tend à éloigner le piston de sa
position médiane.- Figure 3 shows the faulty control system
with an effort which tends to move the piston away from its
middle position.
- La figure 4 représente le système de commande en panne
avec un effort qui tend à déplacer le piston vers sa
position médiane.- Figure 4 shows the faulty control system
with a force which tends to move the piston towards its
middle position.
- La figure 5 représente un des clapets anti-retour dans
une position pilotée (passant) - La figure 6 représente un des clapets anti-retour dans
une position bloquée (non passant) - La figure 7 représente une coupe du vérin hydraulique.- Figure 5 shows one of the non-return valves in
a piloted position (passing) - Figure 6 shows one of the non-return valves in
a locked position (not passing) - Figure 7 shows a section of the hydraulic cylinder.
Sur la figure 1 on voit comment le dispositif est implanté sur le train avant d'un véhicule automobile. Une barre anti-dévers 2 est reliée par des articulations généralement souples 3 à la caisse 1 du véhicule. Une des extrémité 30 de la barre anti-dévers est reliée au bras de suspension 4 qui lui fait face par une biellette 5 et l'autre extrémité 31 de ladite barre est reliée à l'autre bras de suspension 6 par un vérin hydraulique 7. In Figure 1 we see how the device is located on the front axle of a motor vehicle. An anti-roll bar 2 is connected by generally flexible joints 3 to the body 1 of the vehicle. One of the ends 30 of the anti-roll bar is connected to the suspension arm 4 which faces it by a link 5 and the other end 31 of the said bar is connected to the other suspension arm 6 by a hydraulic cylinder 7.
Selon l'invention, le vérin hydraulique 7 qui est représenté sur la figure 7 est un vérin à simple tige 8 avec des attaches sur le fond du cyclindre 9 et en bout de tige 10. Le cylindre 29 possède classiquement deux orifices d'alimentation : un orifice 11 du côté du fond du cylindre et un orifice 12 du côté de la sortie de la tige 10.According to the invention, the hydraulic cylinder 7 which is shown in FIG. 7 is a single rod cylinder 8 with fasteners on the bottom of the cylinder 9 and at the end of the rod 10. The cylinder 29 conventionally has two supply orifices: an orifice 11 on the side of the bottom of the cylinder and an orifice 12 on the side of the outlet of the rod 10.
Un troisième orifice 13 communique par une canalisation 14 avec les entrées de pilotage 151 et 161 des clapets anti-retour 15 et 16 montés en opposition de flux sur une même canalisation 17. Une capacité d'huile 18 est connectée sur cette canalisation et entre les deux clapets anti-retour.A third orifice 13 communicates via a pipe 14 with the pilot inputs 151 and 161 of the non-return valves 15 and 16 mounted in flow opposition on the same pipe 17. An oil capacity 18 is connected on this pipe and between the two check valves.
L'orifice 11 de la chambre supérieure 35 du vérin 7 est relié par une canalisation 19 à l'orifice 201 d'un distributeur 20 qui selon la réalisation est un distributeur à deux positions et 3 orifices et à commande électrique ou hydraulique avec rappel par ressort.The orifice 11 of the upper chamber 35 of the jack 7 is connected by a pipe 19 to the orifice 201 of a distributor 20 which, according to the embodiment, is a distributor with two positions and 3 orifices and with electric or hydraulic control with return by spring.
L'orifice 12 de la chambre inférieure 36 de ce vérin 7 est relié de la même façon par une canalisation 22 à l'orifice 211 d'un distributeur 21 de même type que celui qui alimente la chambre supérieure.The orifice 12 of the lower chamber 36 of this jack 7 is connected in the same way by a pipe 22 to the orifice 211 of a distributor 21 of the same type as that which supplies the upper chamber.
En mode de fonctionnement normal qui est représenté sur la figure 2, le vérin 7 est alimenté à travers les distributeurs 20 et 21 par une source d'énergie 22 qui peut être un organe électrohydraulique. Des canalisations hydrauliques 23 et 24 amènent le fluide hydraulique depuis la source d'énergie 22 aux orifices 202 et 212 des distributeurs 20 et 21. Le passage vers les clapets anti-retour 15 et 16 à travers les canalisations 32 et 34 depuis les orifices 203 et 213 des distributeurs 20 et 21 est alors obturé de par la position des tiroirs desdits distributeurs.In normal operating mode which is shown in Figure 2, the cylinder 7 is supplied through the distributors 20 and 21 by an energy source 22 which can be an electrohydraulic member. Hydraulic lines 23 and 24 bring the hydraulic fluid from the energy source 22 to the orifices 202 and 212 of the distributors 20 and 21. The passage to the non-return valves 15 and 16 through the lines 32 and 34 from the orifices 203 and 213 of the distributors 20 and 21 is then closed by the position of the drawers of said distributors.
En cas de défaillance, le dispositif se met en mode "sécurité" tel que représenté sur la figure 3. Les tiroirs des distributeurs 20 et 21 changent de position et les orifices 201 et 212 sont obturés. Le passage se fait alors de l'orifice 11 du vérin 7 vers l'orifice 152 du clapet anti-retour 15, et de l'orifice 12 du vérin 7 vers l'orifice 162 du clapet anti-retour 16.In the event of a failure, the device goes into "safety" mode as shown in FIG. 3. The drawers of the distributors 20 and 21 change position and the orifices 201 and 212 are closed. The passage then takes place from the orifice 11 of the jack 7 towards the orifice 152 of the non-return valve 15, and from the orifice 12 of the jack 7 towards the orifice 162 of the non-return valve 16.
Toujours selon la figure 3, le dispositif de sécurité est représenté dans une configuration où la tige du vérin est sollicitée en "traction" alors que le piston est dans la partie inférieure du cylindre. La pression relative étant proche de zéro dans la chambre supérieure, elle est relativement proche de zéro dans la canalisation 14 et les deux clapets anti-retour 15 et 16 restent fermés : le système bloque le mouvement de la tige du vérin 7 dans le sens de cette sollicitation.Still according to FIG. 3, the safety device is represented in a configuration where the rod of the jack is stressed in "traction" while the piston is in the lower part of the cylinder. The relative pressure being close to zero in the upper chamber, it is relatively close to zero in the pipe 14 and the two non-return valves 15 and 16 remain closed: the system blocks the movement of the cylinder rod 7 in the direction of this solicitation.
Selon la figure 4, le dispositif de sécurité est représenté dans une configuration où la tige du vérin est sollicitée en "compression" alors que le piston est toujours dans la partie inférieure du cylindre. I1 se produit alors une légère pression dans la chambre supérieure du vérin 7 ce qui permet l'ouverture des clapets anti-retour 15 et 16 par suite de la pression dans la canalisation 14 le piston est alors libéré.According to Figure 4, the safety device is shown in a configuration where the cylinder rod is stressed in "compression" while the piston is still in the lower part of the cylinder. I1 then occurs a slight pressure in the upper chamber of the cylinder 7 which allows the opening of the non-return valves 15 and 16 as a result of the pressure in the pipe 14 the piston is then released.
Le piston 27 du vérin 7 est équipé d'un joint 28 dont la largeur est légèrement supérieure au diamètre de l'orifice 13 qui est pratiqué dans la paroi du cylindre 29. La position de cet orifice est aménagée de telle sorte qu'il est obturé par le joint 28 du piston 27 lorsque celui-ci est au milieu de sa course, ce qui correspond a une longueur médiane du vérin.The piston 27 of the jack 7 is fitted with a seal 28 whose width is slightly greater than the diameter of the orifice 13 which is formed in the wall of the cylinder 29. The position of this orifice is arranged so that it is closed by the gasket 28 of the piston 27 when the latter is in the middle of its travel, which corresponds to a median length of the jack.
Ainsi, en cas de défaillance de la commande active de l'anti-roulis, lorsque le piston 27 du vérin arrive en face de l'orifice 13, le dispositif de sécurité bloque celui-ci dans cette position.Thus, in the event of a failure of the active anti-roll control, when the piston 27 of the jack arrives opposite the orifice 13, the safety device blocks the latter in this position.
Le fonctionnement du dispositif décrit lorsque le piston se trouve dans la partie inférieure du cylindre est évidemment semblable lorsque le piston se trouve dans la partie haute du cylindre, et le rappel au centre du piston se fait de la même façon. The operation of the device described when the piston is in the lower part of the cylinder is obviously similar when the piston is in the upper part of the cylinder, and the return to the center of the piston is done in the same way.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9016080A FR2670716B1 (en) | 1990-12-21 | 1990-12-21 | SAFETY DEVICE MOUNTED ON AN ACTIVE HYDRAULIC CYLINDER. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9016080A FR2670716B1 (en) | 1990-12-21 | 1990-12-21 | SAFETY DEVICE MOUNTED ON AN ACTIVE HYDRAULIC CYLINDER. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2670716A1 true FR2670716A1 (en) | 1992-06-26 |
FR2670716B1 FR2670716B1 (en) | 1993-02-19 |
Family
ID=9403516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9016080A Expired - Fee Related FR2670716B1 (en) | 1990-12-21 | 1990-12-21 | SAFETY DEVICE MOUNTED ON AN ACTIVE HYDRAULIC CYLINDER. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2670716B1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608650A1 (en) * | 1993-01-29 | 1994-08-03 | Automobiles Peugeot | Safety control device for a hydraulic actuator |
FR2786132A1 (en) * | 1998-11-25 | 2000-05-26 | Renault | Link for vehicle anti roll bar comprises actuator with piston and accumulators and controllers that close valves to lock piston in position above predetermined threshold pressure. |
FR2786133A1 (en) * | 1998-11-25 | 2000-05-26 | Renault | Linking system for vehicle anti roll bar comprises actuator with piston and accumulators and controllers that close valves to lock piston in position above predetermined threshold pressure. |
FR2812704A1 (en) * | 2000-08-01 | 2002-02-08 | Zf Lenksysteme Gmbh | ACTUATOR |
EP1364858A1 (en) * | 2002-05-25 | 2003-11-26 | FAUN GmbH | Rear axle for a vehicle |
WO2004037573A1 (en) * | 2002-10-25 | 2004-05-06 | Ina-Schaeffler Kg | Roll stabiliser for the chassis of a motor vehicle |
EP1473178A1 (en) * | 2002-02-06 | 2004-11-03 | Toyota Jidosha Kabushiki Kaisha | Stabilizer device |
EP1314588A3 (en) * | 2001-11-21 | 2004-12-22 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Anti-roll bar assembly for a vehicle |
FR2935640A1 (en) * | 2008-09-05 | 2010-03-12 | Renault Sas | Active/semi-active anti-roll actuator control device supervising system for motor vehicle, has supervision unit setting control device in operating mode compatible with availability of information, energy source and energy control source |
WO2018229376A1 (en) * | 2017-06-14 | 2018-12-20 | Psa Automobiles Sa | Anti-roll device with controlled coupling means for a motor vehicle axle assembly |
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---|---|---|---|---|
EP0270327A1 (en) * | 1986-12-01 | 1988-06-08 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Spring-constant variable stabilizer device |
WO1988007455A1 (en) * | 1987-03-27 | 1988-10-06 | Philip Di Maria | Vehicle suspension system |
GB2220625A (en) * | 1988-07-01 | 1990-01-17 | Lotus Group Plc | Vehicle suspension system |
US4973077A (en) * | 1989-05-31 | 1990-11-27 | Chuo Hatsujo Kabushiki Kaisha | Stabilizer device for motor vehicles |
-
1990
- 1990-12-21 FR FR9016080A patent/FR2670716B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0270327A1 (en) * | 1986-12-01 | 1988-06-08 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Spring-constant variable stabilizer device |
WO1988007455A1 (en) * | 1987-03-27 | 1988-10-06 | Philip Di Maria | Vehicle suspension system |
GB2220625A (en) * | 1988-07-01 | 1990-01-17 | Lotus Group Plc | Vehicle suspension system |
US4973077A (en) * | 1989-05-31 | 1990-11-27 | Chuo Hatsujo Kabushiki Kaisha | Stabilizer device for motor vehicles |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2701069A1 (en) * | 1993-01-29 | 1994-08-05 | Peugeot | Safety control device for controlled hydraulic cylinder. |
EP0608650A1 (en) * | 1993-01-29 | 1994-08-03 | Automobiles Peugeot | Safety control device for a hydraulic actuator |
FR2786132A1 (en) * | 1998-11-25 | 2000-05-26 | Renault | Link for vehicle anti roll bar comprises actuator with piston and accumulators and controllers that close valves to lock piston in position above predetermined threshold pressure. |
FR2786133A1 (en) * | 1998-11-25 | 2000-05-26 | Renault | Linking system for vehicle anti roll bar comprises actuator with piston and accumulators and controllers that close valves to lock piston in position above predetermined threshold pressure. |
FR2812704A1 (en) * | 2000-08-01 | 2002-02-08 | Zf Lenksysteme Gmbh | ACTUATOR |
EP1314588A3 (en) * | 2001-11-21 | 2004-12-22 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Anti-roll bar assembly for a vehicle |
EP1473178A4 (en) * | 2002-02-06 | 2009-07-29 | Toyota Motor Co Ltd | Stabilizer device |
EP1473178A1 (en) * | 2002-02-06 | 2004-11-03 | Toyota Jidosha Kabushiki Kaisha | Stabilizer device |
EP1364858A1 (en) * | 2002-05-25 | 2003-11-26 | FAUN GmbH | Rear axle for a vehicle |
WO2004037573A1 (en) * | 2002-10-25 | 2004-05-06 | Ina-Schaeffler Kg | Roll stabiliser for the chassis of a motor vehicle |
US7100926B2 (en) | 2002-10-25 | 2006-09-05 | Ina-Schaeffler Kg | Roll stabilizer with failsafe device for the chassis of a motor vehicle |
FR2935640A1 (en) * | 2008-09-05 | 2010-03-12 | Renault Sas | Active/semi-active anti-roll actuator control device supervising system for motor vehicle, has supervision unit setting control device in operating mode compatible with availability of information, energy source and energy control source |
WO2018229376A1 (en) * | 2017-06-14 | 2018-12-20 | Psa Automobiles Sa | Anti-roll device with controlled coupling means for a motor vehicle axle assembly |
FR3067659A1 (en) * | 2017-06-14 | 2018-12-21 | Peugeot Citroen Automobiles Sa | ANTI-DEVICE DEVICE WITH PILOT COUPLING MEANS FOR A MOTOR VEHICLE TRAIN |
US11021034B2 (en) | 2017-06-14 | 2021-06-01 | Psa Automobiles Sa | Anti-roll device with controlled coupling means for a motor vehicle axle assembly |
Also Published As
Publication number | Publication date |
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FR2670716B1 (en) | 1993-02-19 |
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