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FR2811270A1 - Automobile transmission system comprises gearbox with primary and secondary shafts, multiple disc clutch and electronic management device controlling torque transmitted to driving wheels - Google Patents

Automobile transmission system comprises gearbox with primary and secondary shafts, multiple disc clutch and electronic management device controlling torque transmitted to driving wheels Download PDF

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Publication number
FR2811270A1
FR2811270A1 FR0009094A FR0009094A FR2811270A1 FR 2811270 A1 FR2811270 A1 FR 2811270A1 FR 0009094 A FR0009094 A FR 0009094A FR 0009094 A FR0009094 A FR 0009094A FR 2811270 A1 FR2811270 A1 FR 2811270A1
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FR
France
Prior art keywords
clutch
gearbox
management device
electronic management
drive 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
Application number
FR0009094A
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French (fr)
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FR2811270B1 (en
Inventor
Fransceco Sbarro
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Individual
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Individual
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Priority to FR0009094A priority Critical patent/FR2811270B1/en
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Publication of FR2811270B1 publication Critical patent/FR2811270B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/04—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/20—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing in which the differential movement is limited
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

The transmission comprises a gearbox (31) with a primary shaft (32) and a secondary shaft (33), a clutch mechanism and a coupling (36) of the secondary shaft with the driving wheels (41,42). The clutch mechanism comprises a multiple disc clutch (43,44) connected with each of the driving wheels. The clutch is controlled by an electronic management device (45) of the torque to be instantaneously transmitted to the corresponding driving wheel.

Description

DISPOSITIF DE TRANSMISSION POUR UN VEHICULE AUTOMOBILETRANSMISSION DEVICE FOR A MOTOR VEHICLE

La présente invention concerne un dispositif de transmission pour un véhicule automobile à moteur thermique comportant au moins deux roues motrices, ce dispositif comprenant une boîte de vitesses pourvue d'un axe primaire et d'un axe secondaire, d'un dispositif d'embrayage et de moyens de couplage de  The present invention relates to a transmission device for a motor vehicle with an internal combustion engine comprising at least two drive wheels, this device comprising a gearbox provided with a primary axis and a secondary axis, with a clutch device and means of coupling of

l'axe secondaire avec les roues motrices.  the secondary axis with the driving wheels.

D'une manière connue en soi, les véhicules de ce type comportent habituellement un embrayage, qui est monté directement entre l'arbre de sortie du moteur et l'axe primaire de la boîte de vitesses, et un différentiel qui  In a manner known per se, vehicles of this type usually comprise a clutch, which is mounted directly between the output shaft of the engine and the primary axis of the gearbox, and a differential which

est monté entre l'axe secondaire de la boîte de vitesses et les roues motrices.  is mounted between the secondary axis of the gearbox and the drive wheels.

La vitesse angulaire de l'arbre de sortie du moteur est généralement élevée et l'embrayage, monté sur cet axe, doit être dimensionné en conséquence pour s'adapter à ces vitesses de rotation. En outre, les moyens de couplage de la boîte de vitesse et des roues motrices doivent comporter un différentiel agencé pour permettre aux deux axes des roues motrices de tourner à des vitesses différentes par exemple lorsque le véhicule suit une trajectoire courbe. L'embrayage encombrant et le différentiel complexe sont des pièces  The angular speed of the motor output shaft is generally high and the clutch, mounted on this axis, must be dimensioned accordingly to adapt to these rotational speeds. In addition, the coupling means of the gearbox and the drive wheels must include a differential arranged to allow the two axes of the drive wheels to rotate at different speeds, for example when the vehicle follows a curved trajectory. The bulky clutch and complex differential are parts

lourdes et coûteuses sur les véhicules automobiles courants.  heavy and expensive on common motor vehicles.

L'encombrement, en particulier dans les véhicules dont le moteur est disposé transversalement à l'avant, pose des problèmes difficiles à résoudre. Les roues directrices nécessitent un espace non négligeable pour leur braquage en courbe. Compte tenu de l'encombrement du moteur et des accessoires tels que l'embrayage ou le convertisseur de couple montés à la sortie du moteur, le constructeur est souvent amené soit à réduire. le rayon de braquage des roues directrices, soit à élargir le véhicule. Or la largeur des véhicules est limitée par les règlements en vigueur, de façon particulièrement  Dimensions, in particular in vehicles whose engine is arranged transversely at the front, pose problems which are difficult to solve. The steered wheels require a considerable space for their turning in curves. Given the size of the engine and accessories such as the clutch or the torque converter mounted at the engine outlet, the manufacturer is often required to reduce. the turning radius of the steered wheels, ie to widen the vehicle. However, the width of vehicles is limited by the regulations in force, particularly

restrictive dans certains pays, ce qui pose des problèmes difficiles à résoudre.  restrictive in some countries, which poses difficult problems to resolve.

De ce fait, un gain de place de quelques centimètres, voire d'une dizaine ce centimètres est hautement apprécié des constructeurs de véhicules  Therefore, a gain of space of a few centimeters, or even ten this centimeter is highly appreciated by vehicle manufacturers

automobiles, en particulier pour tous les modèles à moteur transversal.  automobiles, in particular for all transverse engine models.

La présente invention se propose de pallier ces inconvénients en proposant un dispositif de transmission moins encombrant plus simple, plus léger et moins coûteux qui offre en outre des avantages techniques complémentaires qui améliorent la tenue de route du véhicule et réduisent sa consommation. Ce but est atteint par le dispositif de transmission selon l'invention, tel que défini en préambule et caractérisé en ce que le dispositif d'embrayage comporte un embrayage à disques multiples associé à chacune des roues motrices, cet embrayage étant commandé par un dispositif électronique de gestion du couple à transmettre instantanément à la roue motrice correspondante. Cette construction permet de supprimer l'embrayage classique à la sortie de lI'arbre moteur ainsi que le différentiel qui lie les deux axes des roues motrices  The present invention proposes to overcome these drawbacks by proposing a simpler, lighter and less expensive less bulky transmission device which also offers additional technical advantages which improve the handling of the vehicle and reduce its consumption. This object is achieved by the transmission device according to the invention, as defined in the preamble and characterized in that the clutch device comprises a multiple disc clutch associated with each of the drive wheels, this clutch being controlled by an electronic device. torque management system to be instantly transmitted to the corresponding drive wheel. This construction eliminates the conventional clutch at the outlet of the engine shaft as well as the differential which connects the two axes of the drive wheels.

à l'axe secondaire de la boîte de vitesses.  to the secondary axis of the gearbox.

Selon un mode de réalisation préféré de l'invention, le dispositif de transmission comporte une boîte d'engrenages de renvoi montée entre l'axe secondaire de la boîte de vitesse et les embrayages associés à chacune des  According to a preferred embodiment of the invention, the transmission device comprises a transmission gearbox mounted between the secondary axis of the gearbox and the clutches associated with each of the

roues motrices.drive wheels.

Selon un mode de réalisation particulièrement avantageux, le dispositif électronique de gestion est agencé pour transmettre à chaque embrayage un signal de commande proportionnel au couple à transmettre instantanément à  According to a particularly advantageous embodiment, the electronic management device is arranged to transmit to each clutch a control signal proportional to the torque to be transmitted instantly to

la roue motrice correspondante.the corresponding drive wheel.

Selon une variante avantageuse, le dispositif selon l'invention comporte au moins un capteur associé à chaque roue motrice du véhicule et agencé pour transmettre au dispositif électronique de gestion un signal correspondant au couple à transmettre instantanément à ladite roue en fonction des contraintes  According to an advantageous variant, the device according to the invention comprises at least one sensor associated with each driving wheel of the vehicle and arranged to transmit to the electronic management device a signal corresponding to the torque to be transmitted instantly to said wheel according to the constraints

de conduite ou de route.driving or driving.

De façon particulièrement avantageuse, ledit capteur est un couplométre et  In a particularly advantageous manner, said sensor is a torque meter and

les couplomètres sont montés sur l'axe de chaque roue motrice.  the torque meters are mounted on the axis of each drive wheel.

L'invention sera mieux comprise en référence à la description d'une forme de  The invention will be better understood with reference to the description of a form of

réalisation donnée à titre d'exemple non limitatif et aux dessins annexés, dans lesquels: - la figure 1 représente une vue schématique d'un dispositif de transmission classique utilisé sur la plupart des véhicules automobiles à moteur thermique, et - la figure 2 représente une vue schématique d'un dispositif de transmission  embodiment given by way of nonlimiting example and in the accompanying drawings, in which: - Figure 1 shows a schematic view of a conventional transmission device used on most motor vehicles with thermal engine, and - Figure 2 shows a schematic view of a transmission device

selon l'invention.according to the invention.

En référence à la figure 1, le dispositif de transmission 10 tel que représenté comporte, d'une manière connue en soi, un embrayage classique 11 monté sur l'arbre de sortie 12 du moteur 13 du véhicule (non représenté), une boîte de vitesses 14, par exemple du type à cinq rapports, ayant un axe primaire 15 et un axe secondaire 16, et un différentiel 17 qui comporte deux sorties 18 et 19 respectivement couplées aux axes 20 et 21 de deux roues motrices 22 et 23. L'embrayage 11 est dimensionné pour s'adapter aux vitesses de rotation élevées de l'arbre de sortie du moteur et le différentiel, qui constitue une pièce mécanique lourde et complexe, a pour fonction de transmettre la force  Referring to Figure 1, the transmission device 10 as shown comprises, in a manner known per se, a conventional clutch 11 mounted on the output shaft 12 of the engine 13 of the vehicle (not shown), a gearbox gears 14, for example of the five-speed type, having a primary axis 15 and a secondary axis 16, and a differential 17 which has two outputs 18 and 19 respectively coupled to the axes 20 and 21 of two driving wheels 22 and 23. The clutch 11 is dimensioned to adapt to the high rotational speeds of the engine output shaft and the differential, which constitutes a heavy and complex mechanical part, has the function of transmitting the force

motrice relayée par la boîte de vitesses aux roues motrices.  drive relayed by the gearbox to the drive wheels.

Dans le cas d'un véhicule à quatre roues motrices, le mécanisme se complique encore et comporte en outre un deuxième différentiel qui couple les deux axes des deux autres roues motrices et un différentiel intermédiaire qui est monté entre deux tronçons d'axe respectivement couplés aux deux  In the case of a four-wheel drive vehicle, the mechanism is further complicated and further comprises a second differential which couples the two axes of the other two drive wheels and an intermediate differential which is mounted between two sections of axis respectively coupled to of them

différentiels correspondant à chaque paire de roues motrices.  differentials corresponding to each pair of drive wheels.

Dans le cas d'un véhicule équipé d'une boîte de vitesses automatique, un convertisseur de couple lourd et encombrant est généralement monté sur l'arbre de sortie du moteur, en amont des embrayages correspondant à chaque vitesse. Ce convertisseur de couple est rempli d'huile et doit être refroidi en permanence. C'est également une pièce complexe, lourde et  In the case of a vehicle equipped with an automatic gearbox, a heavy and bulky torque converter is generally mounted on the output shaft of the engine, upstream of the clutches corresponding to each speed. This torque converter is filled with oil and must be constantly cooled. It is also a complex, heavy and

encombrante et coûteuse.bulky and expensive.

En référence à la figure 2, le dispositif de transmission selon l'invention 30 comporte une boîte de vitesses 31, par exemple du type à cinq rapports, ayant un axe primaire 32 et un axe secondaire 33, montée sur l'arbre de sortie 34 du moteur 35 du véhicule (non représenté), et une boîte de transmission 36 à engrenages de renvoi qui comporte deux sorties 37 et 38 respectivement couplées aux axes 39 et 40 de deux roues motrices 41 et 42 par l'intermédiaire de deux embrayages 43 et 44. Ces deux embrayages sont commandés par des un dispositif électronique de gestion 45, agencé pour les commander de telle manière que le couple à transmettre instantanément aux roues motrices est dosé de façon appropriée en fonction des exigences de la conduite. Le dispositif électronique de gestion 45 est associé à des capteurs du type couplomètres 46 et 47 qui sont agencés pour mesurer à tout instant le couple moteur à transmettre aux roues motrices et à fournir au dispositif de gestion électronique les informations correspondantes sous la forme de signaux électriques. Ces capteurs sont habituellement associés aux roues du  With reference to FIG. 2, the transmission device according to the invention 30 comprises a gearbox 31, for example of the five-speed type, having a primary axis 32 and a secondary axis 33, mounted on the output shaft 34 of the engine 35 of the vehicle (not shown), and a transmission gearbox 36 with return gears which has two outputs 37 and 38 respectively coupled to the axes 39 and 40 of two driving wheels 41 and 42 by means of two clutches 43 and 44. These two clutches are controlled by an electronic management device 45, arranged to control them in such a way that the torque to be transmitted instantly to the drive wheels is dosed appropriately according to the requirements of driving. The electronic management device 45 is associated with sensors of the torque meter type 46 and 47 which are arranged to measure at any time the driving torque to be transmitted to the driving wheels and to supply the electronic management device with the corresponding information in the form of electrical signals. . These sensors are usually associated with the wheels of the

véhicule ou aux axes de transmission couplés à ces roues.  vehicle or transmission axes coupled to these wheels.

Pour un véhicule à quatre roues motrices, la répartition du couple entre la paire de roues motrices arrière et la paire de roues motrices avant peut être  For a four-wheel drive vehicle, the distribution of torque between the pair of rear drive wheels and the pair of front drive wheels can be

dosée facilement et de façon permanente, selon les conditions routières.  easily and permanently dosed, depending on road conditions.

Selon le type de route et le type de conduite, le véhicule peut être entièrement ou majoritairement à traction avant, à propulsion arrière ou. à traction et propulsion intégrale. Le dosage effectué électroniquement est très simple et  Depending on the type of road and the type of driving, the vehicle can be entirely or mainly front-wheel drive, rear-wheel drive or. all-wheel drive. The electronic dosing is very simple and

la commande des embrayages affectés à chaque roue devient élémentaire.  the control of the clutches assigned to each wheel becomes elementary.

D'autres avantages découlent de la mise en oeuvre de ce concept. Certains  Other advantages arise from the implementation of this concept. Some

véhicules haut de gamme sont équipés d'un système de contrôle directionnel.  High-end vehicles are equipped with a directional control system.

Ce système est actuellement un accessoire coûteux exclusivement monté sur certains types de véhicules. Le dispositif de l'invention intègre ce système et le remplace totalement tout en offrant de multiples autres avantages. Parmi les avantages du dispositif selon l'invention on notera principalement les avantages suivants: - la réduction de l'encombrement par suppression de l'embrayage principal monté à la sortie du moteur sur les véhicules à boîte manuelle et du convertisseur de couple sur les véhicules à boîte automatique, - la réduction de poids qui découle de cette suppression, - la réduction des coûts qui résulte de cette suppression, - I'augmentation de la fiabilité qui résulte de l'absence de ces équipements complexes, - la réduction de la consommation due à la diminution de poids, - I'augmentation des performances qui résulte d'un meilleur dosage du couple transmis aux roues motrices en fonction des besoins instantanés selon les conditions routières, et - la facilité d'adaptation du dispositif aux différents types de véhicules, à  This system is currently an expensive accessory exclusively mounted on certain types of vehicles. The device of the invention integrates this system and completely replaces it while offering multiple other advantages. Among the advantages of the device according to the invention, the following advantages will mainly be noted: - the reduction in size by eliminating the main clutch mounted at the engine outlet on vehicles with manual transmission and the torque converter on vehicles with automatic gearbox, - the reduction in weight which results from this abolition, - the reduction in costs which results from this abolition, - the increase in reliability which results from the absence of this complex equipment, - the reduction in consumption due to the reduction in weight, - the increase in performance which results from a better dosage of the torque transmitted to the drive wheels according to instantaneous needs according to road conditions, and - the ease of adaptation of the device to the different types of vehicles , at

traction avant, à propulsion arrière ou à quatre roues motrices.  front wheel drive, rear wheel drive or four wheel drive.

La présente invention n'est pas limitée à la forme de réalisation préférée décrite, mais peut subir différentes modifications ou variantes évidentes pour  The present invention is not limited to the preferred embodiment described, but may undergo various modifications or obvious variants for

I'homme du métier.The skilled person.

Claims (6)

REVENDICATIONS 1. Dispositif de transmission (30) pour véhicule automobile à moteur thermique (35) comportant au moins deux roues motrices (41, 42), ce dispositif comprenant une boite de vitesses (31) pourvue d'un axe primaire (32) et d'un axe secondaire (33), d'un dispositif d'embrayage et de moyens de couplage (36) de l'axe secondaire (33) de la boîte de vitesses (31) avec les roues motrices, caractérisé en ce que le dispositif d'embrayage comporte un embrayage (43, 44) à disques multiples associé à chacune des roues motrices (41, 42), cet embrayage étant commandé par un dispositif électronique de gestion (45) du couple à transmettre instantanément à la roue  1. Transmission device (30) for a motor vehicle with a thermal engine (35) comprising at least two drive wheels (41, 42), this device comprising a gearbox (31) provided with a primary axis (32) and d '' a secondary axis (33), a clutch device and coupling means (36) of the secondary axis (33) of the gearbox (31) with the drive wheels, characterized in that the device clutch comprises a multiple disc clutch (43, 44) associated with each of the drive wheels (41, 42), this clutch being controlled by an electronic management device (45) of the torque to be transmitted instantly to the wheel motrice correspondante.corresponding motor. 2. Dispositif selon la revendication 1, caractérisé en ce qu'il comporte une boîte d'engrenages de renvoi (36) montée entre l'axe secondaire (33) de la boîte de vitesses (31) et les embrayages (43, 44) associés à chacune des  2. Device according to claim 1, characterized in that it comprises a return gearbox (36) mounted between the secondary axis (33) of the gearbox (31) and the clutches (43, 44) associated with each of roues motrices (41, 42).drive wheels (41, 42). 3. Dispositif selon la revendication 1, caractérisé en ce que le dispositif électronique de gestion (45) est agencé pour transmettre à chaque embrayage (43, 44) un signal de commande proportionnel. au couple à  3. Device according to claim 1, characterized in that the electronic management device (45) is arranged to transmit to each clutch (43, 44) a proportional control signal. to the couple to transmettre instantanément à la roue motrice correspondante (41, 42).  instantly transmit to the corresponding drive wheel (41, 42). 4. Dispositif selon la revendication 3, caractérisé en ce qu'il comporte au moins un capteur (46, 47) associé à chaque roue motrice (41, 42) du véhicule et agencé pour transmettre au dispositif électronique de gestion (45) un signal correspondant au couple à transmettre instantanément à ladite roue en  4. Device according to claim 3, characterized in that it comprises at least one sensor (46, 47) associated with each driving wheel (41, 42) of the vehicle and arranged to transmit a signal to the electronic management device (45) corresponding to the torque to be transmitted instantly to said wheel in fonction des contraintes de conduite ou de route.  depending on driving or road constraints. 5. Dispositif selon la revendication 4, caractérisé en ce que ledit capteur  5. Device according to claim 4, characterized in that said sensor (46, 47) est un couplomètre.(46, 47) is a torque meter. 6. Dispositif selon la revendication 5, caractérisé en ce que les  6. Device according to claim 5, characterized in that the couplomètres (46, 47) sont montés sur les axes des roues motrices (41, 42) .  torque meters (46, 47) are mounted on the axes of the drive wheels (41, 42).
FR0009094A 2000-07-06 2000-07-06 TRANSMISSION DEVICE FOR A MOTOR VEHICLE Expired - Fee Related FR2811270B1 (en)

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FR0009094A FR2811270B1 (en) 2000-07-06 2000-07-06 TRANSMISSION DEVICE FOR A MOTOR VEHICLE

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Application Number Priority Date Filing Date Title
FR0009094A FR2811270B1 (en) 2000-07-06 2000-07-06 TRANSMISSION DEVICE FOR A MOTOR VEHICLE

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FR2811270B1 FR2811270B1 (en) 2002-11-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004108461A1 (en) 2003-06-04 2004-12-16 Zf Friedrichshafen Ag Axle of a vehicle, especially of a utility vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5358084A (en) * 1993-01-19 1994-10-25 Chrysler Corporation Torque magnitude control using electrorheological fluids
US5479348A (en) * 1993-08-05 1995-12-26 Nissan Motor Co., Ltd. Differential limiting torque control system for automotive vehicles
EP0875690A2 (en) * 1997-04-30 1998-11-04 Borg-Warner Automotive, Inc. Clutch assembly having reaction force circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5358084A (en) * 1993-01-19 1994-10-25 Chrysler Corporation Torque magnitude control using electrorheological fluids
US5479348A (en) * 1993-08-05 1995-12-26 Nissan Motor Co., Ltd. Differential limiting torque control system for automotive vehicles
EP0875690A2 (en) * 1997-04-30 1998-11-04 Borg-Warner Automotive, Inc. Clutch assembly having reaction force circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004108461A1 (en) 2003-06-04 2004-12-16 Zf Friedrichshafen Ag Axle of a vehicle, especially of a utility vehicle
US7445068B2 (en) 2003-06-04 2008-11-04 Zf Friedrichshafen Ag Axle of a vehicle, especially of a utility vehicle

Also Published As

Publication number Publication date
FR2811270B1 (en) 2002-11-15

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