FR2680742A1 - Hydraulic braking circuit - Google Patents
Hydraulic braking circuit Download PDFInfo
- Publication number
- FR2680742A1 FR2680742A1 FR9110718A FR9110718A FR2680742A1 FR 2680742 A1 FR2680742 A1 FR 2680742A1 FR 9110718 A FR9110718 A FR 9110718A FR 9110718 A FR9110718 A FR 9110718A FR 2680742 A1 FR2680742 A1 FR 2680742A1
- Authority
- FR
- France
- Prior art keywords
- circuit
- wheel
- solenoid valve
- brake motor
- master cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
- B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
- B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
- B60T8/4863—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems
- B60T8/4872—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems pump-back systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4013—Fluid pressurising means for more than one fluid circuit, e.g. separate pump units used for hydraulic booster and anti-lock braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4018—Pump units characterised by their drive mechanisms
- B60T8/4022—Pump units driven by an individual electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/50—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having means for controlling the rate at which pressure is reapplied to or released from the brake
- B60T8/5018—Pressure reapplication using restrictions
- B60T8/5025—Pressure reapplication using restrictions in hydraulic brake systems
- B60T8/5037—Pressure reapplication using restrictions in hydraulic brake systems closed systems
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
Description
CIRCUIT HYDRAULIQUE DE FREINAGE
La présente invention concerne les circuits hydrauliques de freinage pour véhicules automobiles, et plus particulièrement de tels circuits incorporant les fonctions d'antipatinage des roues motrices et d'antiblocage des roues freinées.BRAKE HYDRAULIC CIRCUIT
The present invention relates to hydraulic braking circuits for motor vehicles, and more particularly to such circuits incorporating the traction control functions of the driving wheels and the anti-lock braking wheels.
D'une manière générale, ces circuits hydrauliques comprennent
- un maître-cylindre à deux chambres de travail, pourvu de son réservoir de fluide sous basse pression
- un groupe d'électro-pompes et
- au moins un sous-circuit reliant l'une des chambres de travail
du maître-cylindre à au moins un moteur de frein d'une roue,
le dit sous-circuit comportant
x pour chaque roue, une électrovalve primaire reliant
au repos la chambre de travail du maître-cylindre au
moteur de frein associé à la roue, et, en état
excité, le moteur de frein associé à un conduit susceptible
d'être relié à une capacité basse pression, et
x une pompe du dit groupe, dite primaire, dont l'entrée
d'aspiration est reliée à la dite capacité et la sortie
de refoulement au dit moteur de frein lorsque la dite
électrovalve primaire est en position de repos.Generally, these hydraulic circuits include
- a master cylinder with two working chambers, provided with its reservoir of fluid under low pressure
- a group of electric pumps and
- at least one sub-circuit connecting one of the working chambers
from the master cylinder to at least one brake motor of a wheel,
the said sub-circuit comprising
x for each wheel, a primary solenoid valve connecting
at rest the working chamber of the master cylinder at
brake motor associated with the wheel, and, in good condition
excited, the brake motor associated with a duct likely
to be connected to a low pressure capacity, and
x a pump of said group, called primary, whose input
suction is connected to said capacity and the outlet
delivery to said brake motor when said
primary solenoid valve is in rest position.
Un exemple d'un tel circuit est donné par W0-91/07299. Ces circuits présentent généralement l'inconvénient majeur de ne pas pouvoir freiner le véhicule ainsi équipé lors d'une période de fonctionnement en antipatinage des roues motrices puisque les circuits de freinage normal sont totalement isolés du maître-cylindre, ce qui est contraire à une sécurité élémentaire. La présente invention a notamment pour but d'obvier à cet inconvénient grâce à un circuit amélioré dans lequel seuls les freins des roues motrices ayant tendance au patinage sont actionnés, les roues non motrices restant normalement connectées au maître-cylindre pour autoriser un freinage avant détection par l'unité électronique de commande de la fin de la période d'antipatinage. An example of such a circuit is given by W0-91 / 07299. These circuits generally have the major drawback of not being able to brake the vehicle thus equipped during a period of operation in traction control of the drive wheels since the normal braking circuits are completely isolated from the master cylinder, which is contrary to safety. elementary. The object of the present invention is in particular to obviate this drawback thanks to an improved circuit in which only the brakes of the driving wheels which tend to slip are actuated, the non-driving wheels normally remaining connected to the master cylinder to allow braking before detection. by the electronic control unit at the end of the traction control period.
En outre, l'invention a pour but d'obtenir une montée en pression plus rapide des moteurs de frein des roues motrices. In addition, the invention aims to obtain a faster pressure rise of the brake motors of the drive wheels.
Ces buts selon l'invention sont atteints avec un circuit hydraulique dans lequel le groupe comprend une pompe secondaire dont l'entrée d'aspiration est reliée au dit réservoir, une électrovalve secondaire reliant au repos le dit conduit à la dite capacité et, en état excité, le dit conduit à la sortie de refoulement de la dite pompe secondaire. These objects according to the invention are achieved with a hydraulic circuit in which the group comprises a secondary pump, the suction inlet of which is connected to the said reservoir, a secondary electrovalve connecting the said duct to the said duct at said capacity and, in good condition excited, the said leads to the discharge outlet of the said secondary pump.
L'invention sera mieux comprise et d'autres buts, avantages et caractéristiques de celle-ci apparaîtront plus clairement à la lecture de la description qui suit d'un mode de réalisation donné à titre non limitatif et à laquelle est jointe une planche de dessin sur laquelle
- La Figure Unique représente schématiquement un circuit hydraulique conforme à l'invention.The invention will be better understood and other objects, advantages and characteristics thereof will appear more clearly on reading the following description of an embodiment given without limitation and to which is attached a drawing board on which
- The Single Figure schematically represents a hydraulic circuit according to the invention.
En référence maintenant à cette Figure, l'homme du métier reconnaîtra le dispositif d'actionnement des freins constitué, d'une manière générale, d'une pédale d'actionnement 10, commandant un servofrein pneumatique 12 dont la tige de poussée actionne les pistons d'un maître-cylindre tandem 14 pourvu de son réservoir 16 de fluide sous basse pression. Referring now to this Figure, a person skilled in the art will recognize the brake actuation device constituted, in general, of an actuation pedal 10, controlling a pneumatic servo brake 12 whose push rod actuates the pistons a tandem master cylinder 14 provided with its reservoir 16 of fluid under low pressure.
De manière conventionnelle, chaque chambre de travail du maître-cylindre est reliée à un sous-circuit de freinage. Selon un mode de réalisation préféré, chaque sous-circuit est relié aux moteurs de frein d'une roue motrice 20, 24 et d'une roue libre 22, 26. Conventionally, each working chamber of the master cylinder is connected to a braking sub-circuit. According to a preferred embodiment, each sub-circuit is connected to the brake motors of a drive wheel 20, 24 and a free wheel 22, 26.
Une électrovalve primaire 30, 32, 34, 36 est associée à chaque roue 20, 22, 24, 26 de telle manière qu'au repos le moteur de frein correspondant soit relié à la chambre de travail correspondante du maître-cylindre 14. A primary solenoid valve 30, 32, 34, 36 is associated with each wheel 20, 22, 24, 26 so that at rest the corresponding brake motor is connected to the corresponding working chamber of the master cylinder 14.
Un moyen 40, 42, 44, 46 est disposé entre l'électrovalve primaire 30, 32, 34, 36 et le moteur de frein 20, 22, 24, 26 de manière à ralentir la remontée en pression dans les moteurs de frein après une détente de la pression au cours d'une période d'antiblocage des roues. A means 40, 42, 44, 46 is disposed between the primary solenoid valve 30, 32, 34, 36 and the brake motor 20, 22, 24, 26 so as to slow the rise in pressure in the brake motors after a pressure relief during a period of anti-lock braking.
Le moyen représenté symboliquement est une électrovalve, mais l'on sait également réaliser un tel moyen par un tiroir hydraulique commandé par la différence des pressions régnant dans le maître-cylindre et dans le moteur de frein. Ce moyen n'entrant pas dans le cadre de la présente invention, il ne sera pas plus décrit ici. The means symbolically represented is a solenoid valve, but it is also known to make such a means by a hydraulic slide controlled by the difference in pressures prevailing in the master cylinder and in the brake motor. This means is not within the scope of the present invention, it will not be described further here.
Au repos également, l'électrovalve primaire 30, 32, 34, 36 est reliée à la sortie de refoulement d'une pompe primaire 50, 55 dont l'entrée d'aspiration est directement reliée à une capacité basse pression 51, 56 emmagasinant le fluide de freinage en provenance des moteurs de frein lors de la détente de pression pendant les périodes d'antiblocage. Also at rest, the primary solenoid valve 30, 32, 34, 36 is connected to the discharge outlet of a primary pump 50, 55 whose suction inlet is directly connected to a low pressure capacity 51, 56 storing the brake fluid from the brake motors during pressure relief during anti-lock periods.
Bien évidemment, des soupapes anti-retour 52, 58 constituent des portes hydrauliques ou classiques protégeant pompes 50, 55 et maltre-cylindre 14. Obviously, non-return valves 52, 58 constitute hydraulic or conventional doors protecting pumps 50, 55 and master cylinder 14.
Une électrovalve secondaire 60, 65 relie au repos, un conduit de détente 61, 66 à la capacité basse pression 51, 56, et, en état excité, le conduit de détente 61, 66 à la sortie de refoulement d'une pompe secondaire 100 dont l'entrée d'aspiration est directement reliée au réservoir 16 de fluide sous basse pression. A secondary solenoid valve 60, 65 connects at rest, an expansion conduit 61, 66 to the low pressure capacity 51, 56, and, in the excited state, the expansion conduit 61, 66 to the discharge outlet of a secondary pump 100 whose suction inlet is directly connected to the low pressure fluid reservoir 16.
Le fonctionnement du circuit est le suivant. The circuit works as follows.
En freinage normal, aucune des électrovalves n'est excitée et le circuit se présente comme représenté sur la Figure : les moteurs de frein de chaque roue sont directement reliées au maître-cylindre 14 par le sous-circuit correspondant. In normal braking, none of the solenoid valves are energized and the circuit is presented as shown in the Figure: the brake motors of each wheel are directly connected to the master cylinder 14 by the corresponding sub-circuit.
En période d'antiblocage d'une roue, par exemple la roue référencée 20, l'électrovalve primaire 30 associée à cette roue est excitée. Il en résulte que le moteur du frein de la roue 20 est connecté au conduit de détente 61 et est relié à la capacité basse pression 51 par l'intermédiaire de l'électrovalve secondaire 60 au repos. La pompe 50 est simultanément mise en service. Après détente, l'électrovalve 30 est désexcitée et le moyen 40 passe en position où il constitue une restriction. La pompe 50 aspire le fluide détendu dans la capacité 51 et ré-alimente le moteur de frein de la roue 20 par l'intermédiaire de l'électrovalve primaire 30 et de la restriction du moyen 40, de façon à obtenir une remontée lente de la pression dans le moteur de frein concerné. During an anti-lock period of a wheel, for example the wheel referenced 20, the primary solenoid valve 30 associated with this wheel is energized. As a result, the wheel brake motor 20 is connected to the expansion conduit 61 and is connected to the low pressure capacity 51 via the secondary solenoid valve 60 at rest. The pump 50 is simultaneously put into service. After expansion, the solenoid valve 30 is de-energized and the means 40 pass to the position where it constitutes a restriction. The pump 50 sucks the expanded fluid in the capacity 51 and re-supplies the brake motor of the wheel 20 via the primary solenoid valve 30 and the restriction of the means 40, so as to obtain a slow rise in the pressure in the brake motor concerned.
L'électrovalve primaire 30 va ainsi battre entre sa position de repos et sa position excitée jusqu'à extinction de la détection de l'imminence du blocage de la roue 20. The primary solenoid valve 30 will thus beat between its rest position and its excited position until the detection of the impending locking of the wheel 20 stops.
En période d'antipatinage, en supposant maintenant que la roue 20 est une roue motrice, les électrovalves primaire 30 et secondaire 60 sont simultanément excitées et la pompe 100 mise en service. Il en résulte que, sans action sur la pédale 10, un fluide sous pression prélevé par la pompe 100 dans le réservoir 16 est appliqué au moteur de frein de la roue motrice 20 ayant tendance à patiner par l'intermédiaire de l'électrovalve secondaire 60, du conduit 61 et de l'électrovalve primaire 30. During the traction control period, now assuming that the wheel 20 is a drive wheel, the primary 30 and secondary 60 solenoid valves are simultaneously energized and the pump 100 put into service. As a result, without action on the pedal 10, a pressurized fluid withdrawn by the pump 100 from the reservoir 16 is applied to the brake motor of the drive wheel 20, which tends to slip through the secondary solenoid valve 60 , conduit 61 and primary solenoid valve 30.
En cas d'actionnement subséquent sur la pédale de frein 10, la roue 22, non motrice dans cet exemple, ou motrice mais ne patinant pas, peut être freinée puisqu'elle est directement reliée au maître-cylindre 14 par l'intermédiaire de l'électrovalve primaire 32 en position de repos. In the event of subsequent actuation on the brake pedal 10, the wheel 22, not driving in this example, or driving but not slipping, can be braked since it is directly connected to the master cylinder 14 via the primary solenoid valve 32 in the rest position.
La détection d'une action de freinage sur les roues non motrices peut favorablement dans ce cas mettre fin prématurément à la période d'antipatinage. De même, en cas d'actionnement de la pédale de frein 10, la roue motrice dont le freinage est actionné par le système d'antipatinage aura une pression de freinage minimum égale à la pression régnant dans le maître-cylindre puisque le circuit de détente passe par ce maître-cylindre. The detection of a braking action on the non-driving wheels may favorably in this case prematurely end the traction control period. Similarly, in the event of actuation of the brake pedal 10, the drive wheel whose braking is actuated by the traction control system will have a minimum braking pressure equal to the pressure prevailing in the master cylinder since the expansion circuit goes through this master cylinder.
On constate donc bien que le circuit hydraulique qui vient d'être décrit remplit bien les fonctions requises et, notamment, celle d'assurer la possibilité d'un freinage pendant une période d'antipatinage et avant détection de la fin prématurée de cette période. It can therefore be seen that the hydraulic circuit which has just been described fulfills the required functions and, in particular, that of ensuring the possibility of braking during a traction control period and before detection of the premature end of this period.
En outre, la pompe secondaire 100 ayant son entrée d'aspiration directement reliée au réservoir 16, la montée en pression dans le moteur de frein de la roue ayant tendance à patiner peut être très rapide, et n'est pas gênée par des restrictions ou des pertes de charge résultant d'un circuit complexe.In addition, the secondary pump 100 having its suction inlet directly connected to the reservoir 16, the increase in pressure in the brake motor of the wheel tending to slip can be very rapid, and is not hampered by restrictions or pressure losses resulting from a complex circuit.
Par ailleurs, en période d'antipatinage, outre l'électrovalve secondaire concernée, seule l'électrovalve de la roue ayant tendance à patiner est excitée. Ceci limite la consommation électrique du système et rallonge la durée de vie moyenne des électrovalves. In addition, during the traction control period, in addition to the secondary solenoid valve concerned, only the solenoid valve of the wheel which tends to slip is excited. This limits the power consumption of the system and extends the average lifespan of the solenoid valves.
Sur la Figure, on n'a pas représenté les clapets anti-surpression équipant de façon classique chacune des pompes 50, 55, 100, car la présence de tels clapets est évidente si l'on veut éviter toute détérioration du circuit hydraulique. In the Figure, the anti-overpressure valves fitted to each of the pumps 50, 55, 100 have not been represented in a conventional manner, because the presence of such valves is obvious if one wishes to avoid any deterioration of the hydraulic circuit.
Par contre, bien que cela n'apparaisse pas sur la Figure, les trois pompes 50, 55, 100 font favorablement partie intégrante d'un même groupe d'électro-pompes. En d'autres termes, ces pompes sont avantageusement commandées par un même moteur électrique dont l'arbre de sortie est pourvu de trois pistons oscillants disposés à 1200 les uns des autres. On the other hand, although this does not appear in the Figure, the three pumps 50, 55, 100 favorably form an integral part of the same group of electric pumps. In other words, these pumps are advantageously controlled by the same electric motor, the output shaft of which is provided with three oscillating pistons arranged at 1200 from one another.
On sait, en effet, qu'un tel groupe présente un meilleur rendement que les groupes à deux pompes diamétralement opposées, et favorise l'équilibrage du moteur électrique.It is known, in fact, that such a group has better efficiency than groups with two diametrically opposite pumps, and promotes the balancing of the electric motor.
On peut également prévoir de grouper les pompes 50 et 55 dans un ensemble destiné à assumer la fonction antiblocage, tandis que la pompe 100 sera intégrée à un ensemble destiné à assurer la fonction anti patinage. It is also possible to group the pumps 50 and 55 in an assembly intended to assume the anti-blocking function, while the pump 100 will be integrated into an assembly intended to provide the anti-skid function.
Bien que seul un mode préféré de réalisation ait été représenté, il est évident que l'homme du métier pourra apporter de nombreuses modifications sans sortir du cadre de l'invention. Although only a preferred embodiment has been shown, it is obvious that a person skilled in the art can make numerous modifications without departing from the scope of the invention.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9110718A FR2680742B1 (en) | 1991-08-29 | 1991-08-29 | BRAKE HYDRAULIC CIRCUIT. |
| JP4244031A JPH06183323A (en) | 1991-08-29 | 1992-08-21 | Fluid brake circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9110718A FR2680742B1 (en) | 1991-08-29 | 1991-08-29 | BRAKE HYDRAULIC CIRCUIT. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2680742A1 true FR2680742A1 (en) | 1993-03-05 |
| FR2680742B1 FR2680742B1 (en) | 1996-08-09 |
Family
ID=9416466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9110718A Expired - Lifetime FR2680742B1 (en) | 1991-08-29 | 1991-08-29 | BRAKE HYDRAULIC CIRCUIT. |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH06183323A (en) |
| FR (1) | FR2680742B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994029150A1 (en) * | 1993-06-09 | 1994-12-22 | Itt Automotive Europe Gmbh | Hydraulic brake system with slip control |
| WO1995009098A1 (en) * | 1993-09-28 | 1995-04-06 | Itt Automotive Europe Gmbh | Hydraulic braking system with skid control |
| WO1995009099A1 (en) * | 1993-09-28 | 1995-04-06 | Itt Automotive Europe Gmbh | Hydraulic braking system with skid control |
| WO1995021081A1 (en) * | 1994-02-03 | 1995-08-10 | Itt Automotive Europe Gmbh | Hydraulic braking system with anti-slip control |
| WO1996000671A1 (en) * | 1994-06-29 | 1996-01-11 | Itt Automotive Europe Gmbh | Controlled-slip hydraulic brake system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078323A (en) * | 1980-06-04 | 1982-01-06 | Bosch Gmbh Robert | Apparatus for forward drive regulation or anti-wheel spin in a motor vehicle having an anti-skid system |
| GB2165905A (en) * | 1984-10-19 | 1986-04-23 | Teves Gmbh Alfred | Traction slip- and brake slip-controlled brake system |
| EP0319719A2 (en) * | 1987-12-05 | 1989-06-14 | Robert Bosch Gmbh | Antilock and traction slip regulating installation |
| EP0376788A1 (en) * | 1988-12-28 | 1990-07-04 | Alliedsignal Europe Services Techniques | Hydraulic brake circuit for motor vehicles with antilock and antislip device |
| WO1991007299A1 (en) * | 1989-11-08 | 1991-05-30 | Alfred Teves Gmbh | Hydraulic braking installation to prevent high braking or drive slip |
-
1991
- 1991-08-29 FR FR9110718A patent/FR2680742B1/en not_active Expired - Lifetime
-
1992
- 1992-08-21 JP JP4244031A patent/JPH06183323A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078323A (en) * | 1980-06-04 | 1982-01-06 | Bosch Gmbh Robert | Apparatus for forward drive regulation or anti-wheel spin in a motor vehicle having an anti-skid system |
| GB2165905A (en) * | 1984-10-19 | 1986-04-23 | Teves Gmbh Alfred | Traction slip- and brake slip-controlled brake system |
| EP0319719A2 (en) * | 1987-12-05 | 1989-06-14 | Robert Bosch Gmbh | Antilock and traction slip regulating installation |
| EP0376788A1 (en) * | 1988-12-28 | 1990-07-04 | Alliedsignal Europe Services Techniques | Hydraulic brake circuit for motor vehicles with antilock and antislip device |
| WO1991007299A1 (en) * | 1989-11-08 | 1991-05-30 | Alfred Teves Gmbh | Hydraulic braking installation to prevent high braking or drive slip |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994029150A1 (en) * | 1993-06-09 | 1994-12-22 | Itt Automotive Europe Gmbh | Hydraulic brake system with slip control |
| US5683150A (en) * | 1993-06-09 | 1997-11-04 | Itt Automotive Europe Gmbh | Hydraulic brake system with slip control |
| WO1995009098A1 (en) * | 1993-09-28 | 1995-04-06 | Itt Automotive Europe Gmbh | Hydraulic braking system with skid control |
| WO1995009099A1 (en) * | 1993-09-28 | 1995-04-06 | Itt Automotive Europe Gmbh | Hydraulic braking system with skid control |
| US5664849A (en) * | 1993-09-28 | 1997-09-09 | Itt Automotive Europe Gmbh | Hydraulic brake system with slip control |
| US5887956A (en) * | 1993-09-28 | 1999-03-30 | Itt Automotive Europe Gmbh | Hydraulic brake system with slip control |
| WO1995021081A1 (en) * | 1994-02-03 | 1995-08-10 | Itt Automotive Europe Gmbh | Hydraulic braking system with anti-slip control |
| WO1996000671A1 (en) * | 1994-06-29 | 1996-01-11 | Itt Automotive Europe Gmbh | Controlled-slip hydraulic brake system |
| US6003958A (en) * | 1994-06-29 | 1999-12-21 | Itt Manufacturing Enterprises Inc. | Hydraulic brake system with slip control |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2680742B1 (en) | 1996-08-09 |
| JPH06183323A (en) | 1994-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2709459A1 (en) | Brake pressure control device. | |
| FR2549790A1 (en) | HYDRAULIC BRAKE SYSTEM WITH SLIDER CONTROL, IN PARTICULAR FOR A MOTOR VEHICLE | |
| FR2538329A1 (en) | BRAKE SYSTEM WITH TWO CIRCUITS WITH BRAKE SLIDER CONTROL, IN PARTICULAR FOR MOTOR VEHICLE | |
| FR2478560A1 (en) | HYDRAULIC BRAKE SYSTEM COMPRISING AN ANTI-LOCK CONTROL PLANT | |
| FR2579945A1 (en) | ||
| FR2556672A1 (en) | HYDRAULIC BRAKE SYSTEM | |
| FR2655304A1 (en) | HYDRAULIC ANTI-LOCK BRAKING SYSTEM. | |
| FR2599691A1 (en) | HYDRAULIC BRAKE SYSTEM WITH SLIDER CONTROL | |
| FR2645096A1 (en) | HYDRAULIC BRAKING SYSTEM WITH TRACTION SLIDING REGULATION | |
| FR2773531A1 (en) | Amplification of braking effort on vehicles which allows for inexperienced drivers and reduced negative pressure on modern engines | |
| FR2639013A1 (en) | ANTI-LOCK BRAKING SYSTEM WITH TRACTION SLIDING REGULATION | |
| FR2657059A1 (en) | HYDRAULIC BRAKING SYSTEM. | |
| FR2559723A1 (en) | HYDRAULIC BRAKING SYSTEM WITH SLIDING CONTROL | |
| FR2553726A1 (en) | ASSISTED BRAKE SYSTEM OF A MOTOR VEHICLE | |
| FR2597052A1 (en) | HYDRAULIC BRAKING SYSTEM PROVIDED WITH A WHEEL SLIDING REGULATION DEVICE | |
| FR2680742A1 (en) | Hydraulic braking circuit | |
| FR2579540A1 (en) | HYDRAULIC BRAKE SYSTEM FOR MOTOR VEHICLES | |
| FR2594395A1 (en) | SLIDING CONTROL BRAKE SYSTEM | |
| EP0488833A1 (en) | Automatic braking device for vehicles | |
| EP0493153B1 (en) | Anti-slip system for motor vehicles | |
| FR2562855A1 (en) | HYDRAULIC BRAKING SYSTEM | |
| EP0484192B1 (en) | Hydraulic pump | |
| EP0439974B1 (en) | Servo brake system for motor vehicle | |
| EP0347274B1 (en) | Hydraulic brake circuit for a motor vehicle equipped with antilock and antispin devices | |
| EP0699148B1 (en) | Hydraulic circuit with reservoir serving as distributor |