FR2966116A1 - INSTALLATION OF HYDRAULIC BRAKES OF A VEHICLE WITH ANTI-PIPE CONTROL - Google Patents

INSTALLATION OF HYDRAULIC BRAKES OF A VEHICLE WITH ANTI-PIPE CONTROL Download PDF

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Publication number
FR2966116A1
FR2966116A1 FR1159165A FR1159165A FR2966116A1 FR 2966116 A1 FR2966116 A1 FR 2966116A1 FR 1159165 A FR1159165 A FR 1159165A FR 1159165 A FR1159165 A FR 1159165A FR 2966116 A1 FR2966116 A1 FR 2966116A1
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France
Prior art keywords
brake
installation
hydraulic
pump
auxiliary pump
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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.)
Withdrawn
Application number
FR1159165A
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French (fr)
Inventor
Michael Kunz
Stefan Strengert
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of FR2966116A1 publication Critical patent/FR2966116A1/en
Withdrawn legal-status Critical Current

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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
    • B60T8/40—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
    • B60T8/404—Control of the pump unit
    • B60T8/405—Control of the pump unit involving the start-up phase
    • 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
    • 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
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/145—Master cylinder integrated or hydraulically coupled with booster
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/145—Master cylinder integrated or hydraulically coupled with booster
    • B60T13/146—Part of the system directly actuated by booster pressure
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161—Systems with master cylinder
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • 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
    • B60T8/17—Using electrical or electronic regulation means to control 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
    • B60T8/321—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 deceleration
    • B60T8/3255—Systems in which the braking action is dependent on brake pedal data
    • B60T8/326—Hydraulic 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
    • B60T8/48—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
    • 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

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)

Abstract

Installation de freins hydrauliques de véhicule à régulation antipatinage comportant au moins un circuit de freins I relié à un maître-cylindre (2) et à au moins un frein de roue (3), ainsi qu'une pompe hydraulique (9) dont le côté pression est relié à au moins un frein de roue (3). L'installation de frein (1) comporte une pompe auxiliaire (15) dont le côté pression est relié à au moins un frein de roue (3)Installation of hydraulic vehicle brakes with traction control comprising at least one brake circuit connected to a master cylinder (2) and at least one wheel brake (3) and a hydraulic pump (9) whose side pressure is connected to at least one wheel brake (3). The brake system (1) comprises an auxiliary pump (15) whose pressure side is connected to at least one wheel brake (3)

Description

1 Domaine de l'invention La présente invention se rapporte à une installation de freins hydrauliques de véhicule à régulation antipatinage comportant au moins un circuit de frein relié à un maître-cylindre et à au moins un frein de roue, ainsi qu'une pompe hydraulique dont le côté pression est relié à au moins un frein de roue. Etat de la technique Les installations ou systèmes de freins hydrauliques de véhicule à régulation antipatinage, sont connus. Ces installations ont un maître-cylindre actionné par la force musculaire et relié à un ou plusieurs circuits de freins ayant chacun un ou plusieurs freins de roue. Souvent le maître-cylindre comporte un amplificateur de force de frein généralement un amplificateur à dépression encore appelé souvent amplificateur sous vide. FIELD OF THE INVENTION The present invention relates to an installation of hydraulic vehicle brakes with traction control regulation comprising at least one brake circuit connected to a master cylinder and at least one wheel brake, as well as a hydraulic pump. whose pressure side is connected to at least one wheel brake. State of the art The installations or systems of hydraulic brakes of vehicle with traction control, are known. These installations have a master cylinder actuated by the muscular force and connected to one or more brake circuits each having one or more wheel brakes. Often the master cylinder has a brake force amplifier usually a vacuum amplifier often also called vacuum amplifier.

On connaît également des amplificateurs électromécaniques de force de frein. Les freins de roue sont reliés par des dispositifs de vannes de modulation de pression de frein ayant usuellement une vanne de montée en pression de frein et une vanne de réduction de pression de frein reliée au circuit de freins. De plus, chaque circuit de freins comporte une pompe hydraulique pour établir la pression de frein, ainsi que pour refouler du liquide de frein des freins de roue en retour vers le maître-cylindre ; ces pompes sont souvent appelées pompe de refoulement. Le dispositif de vannes de modulation de pression de frein de roue et la pompe hydraulique, permettent une régulation de la pression de frein individuelle par roue, par exemple un système antiblocage, un système antipatinage et/ ou une régulation de la dynamique de roulage, pour les systèmes généralement désignés par leur abréviation ABS, ASR, ESP et/ou FDR. Les régulations ou systèmes de régulation antipatinage sont connus en soi et ne nécessitent pas de description détaillée. Le document DE 10 2004 027 508 Al décrit une installation de freins hydrauliques de véhicule à deux circuits à régulation antipatinage à la place d'une pompe hydraulique dans chaque circuit de freins, ce circuit a une pompe hydraulique en commun pour les deux circuits de freins. Le côté aspiration de la pompe Electromechanical amplifiers of brake force are also known. The wheel brakes are connected by brake pressure modulation valve devices usually having a brake pressure increase valve and a brake pressure reduction valve connected to the brake circuit. In addition, each brake circuit comprises a hydraulic pump for setting the brake pressure, as well as for discharging brake fluid from the wheel brakes back to the master cylinder; these pumps are often referred to as discharge pumps. The wheel brake pressure modulation valve device and the hydraulic pump, allow regulation of the individual brake pressure per wheel, for example an anti-lock system, a traction control system and / or a regulation of the driving dynamics, for the systems generally designated by their abbreviation ABS, ASR, ESP and / or FDR. The regulations or traction control systems are known per se and do not require detailed description. Document DE 10 2004 027 508 A1 describes a two-circuit hydraulic vehicle brake system with traction control instead of a hydraulic pump in each brake circuit, this circuit has a hydraulic pump in common for the two brake circuits. . The suction side of the pump

2 hydraulique est raccordé directement à un réservoir de liquide de frein, sans pression, installé sur le maître-cylindre de frein ; ce réservoir est également appelé accumulateur hydraulique sans pression. Le côté aspiration de la pompe hydraulique peut être relié par une vanne magnétique aux deux circuits de freins. Le côté pression de la pompe hydraulique est relié à un accumulateur hydraulique, c'est-à-dire un accumulateur de pression auquel sont reliés les deux circuits de freins par l'intermédiaire de vannes d'accumulation, encore appelées vannes électromagnétiques. La pompe hydraulique transfère du liquide de frein à l'accumulateur de pression pour disposer du liquide de frein sous pression en cas d'actionnement de frein, indépendamment de l'actionnement du maître-cylindre de frein. Cette installation de freins de véhicule, connue, permet un actionnement très rapide du frein car il n'y a pas lieu d'établir tout d'abord la montée en pression, mais de disposer d'un accumulateur hydraulique. Exposé et avantages de l'invention La présente invention a pour objet une installation de freins hydrauliques de véhicule du type défini ci-dessus, caractérisée en ce qu'elle comporte une pompe auxiliaire dont le côté pression est relié à au moins un frein de roue. La pompe auxiliaire est une pompe hydraulique qui peut en principe être identique aux pompes hydrauliques équipant les circuits de freins ; mais il peut également s'agir d'un autre type de construction. L'adjectif "auxiliaire" permet de désigner de manière univoque la pompe et de la distinguer des pompes hydrauliques des circuits de freins en exprimant que cette pompe est prévue en plus des pompes hydrauliques équipant les circuits de freins. La pompe auxiliaire permet une montée très rapide de la pression de frein, ce qui est nécessaire et en tous les cas avantageux pour réduire les effets ou les conséquences d'un accident et assurer la régulation de la dynamique de roulage de même que pour les régulations de freins nécessitant une montée rapide de la force de frein qui est un avantage décisif. L'invention a l'avantage de laisser inchangée l'installation de freins existant car il suffit de relier l'un des circuits de freins au côté 2 hydraulic is connected directly to a brake fluid reservoir, without pressure, installed on the master brake cylinder; this tank is also called hydraulic accumulator without pressure. The suction side of the hydraulic pump can be connected via a magnetic valve to both brake circuits. The pressure side of the hydraulic pump is connected to a hydraulic accumulator, that is to say a pressure accumulator to which the two brake circuits are connected by means of storage valves, also called electromagnetic valves. The hydraulic pump transfers brake fluid to the pressure accumulator to dispose of the brake fluid under pressure when the brake is actuated, regardless of the actuation of the brake master cylinder. This vehicle brake installation, known, allows a very fast actuation of the brake because it is not necessary to establish first the rise in pressure, but to have a hydraulic accumulator. DESCRIPTION AND ADVANTAGES OF THE INVENTION The subject of the present invention is a vehicle hydraulic brake installation of the type defined above, characterized in that it comprises an auxiliary pump whose pressure side is connected to at least one wheel brake. . The auxiliary pump is a hydraulic pump which can in principle be identical to the hydraulic pumps fitted to the brake circuits; but it can also be another type of construction. The adjective "auxiliary" allows to uniquely identify the pump and distinguish it from the hydraulic pumps of the brake circuits by expressing that this pump is provided in addition to the hydraulic pumps fitted to the brake circuits. The auxiliary pump allows a very fast rise of the brake pressure, which is necessary and in any case advantageous for reducing the effects or the consequences of an accident and ensuring the regulation of the driving dynamics as well as for the regulations brakes requiring a rapid rise in brake force which is a decisive advantage. The invention has the advantage of leaving unchanged the installation of existing brakes because it is sufficient to connect one of the brake circuits to the side

3 pression de la pompe auxiliaire. C'est pourquoi, l'invention se réalise avec une mise en oeuvre de moyens réduits dans son application aux installations de freins de véhicule existants. Un autre avantage est que non seulement la séparation hydraulique des circuits de freins dans le cas d'une installation de freins de véhicule à plusieurs circuits n'est pas détériorée mais elle est même améliorée. Un autre avantage de l'invention est que comme la pompe hydraulique est utilisée comme pompe auxiliaire dans une installation de freins hydrauliques de véhicule à régulation antipatinage, on utilise ainsi les composants existants. Suivant une autre caractéristique avantageuse, au moins un circuit de frein est relié au côté pression de la pompe auxiliaire. Suivant une autre caractéristique avantageuse, la pompe auxiliaire comporte plusieurs éléments de pompe dont le côté pression est relié à au moins un frein de roue. Suivant une autre caractéristique avantageuse, le côté aspiration de la pompe auxiliaire est relié directement à un réservoir de liquide de frein. 3 pressure of the auxiliary pump. Therefore, the invention is realized with an implementation of reduced means in its application to existing vehicle brake installations. Another advantage is that not only is the hydraulic separation of the brake circuits in the case of a multi-circuit vehicle brake installation not deteriorated, but it is even improved. Another advantage of the invention is that since the hydraulic pump is used as an auxiliary pump in a hydraulic vehicle brake system with traction control, the existing components are thus used. According to another advantageous characteristic, at least one brake circuit is connected to the pressure side of the auxiliary pump. According to another advantageous characteristic, the auxiliary pump comprises a plurality of pump elements whose pressure side is connected to at least one wheel brake. According to another advantageous characteristic, the suction side of the auxiliary pump is connected directly to a brake fluid reservoir.

Et en particulier la pompe auxiliaire a son propre réservoir de liquide de frein. Suivant une autre caractéristique avantageuse, l'installation de freins est une installation de freins à plusieurs circuits et seulement un circuit de frein est relié au côté pression de la pompe auxiliaire. Suivant une autre caractéristique avantageuse, au moins un frein de roue est relié au côté pression de la pompe auxiliaire par l'intermédiaire d'un clapet antiretour ouvert en direction du frein de roue. And in particular the auxiliary pump has its own brake fluid reservoir. According to another advantageous characteristic, the brake installation is a multi-circuit brake system and only one brake circuit is connected to the pressure side of the auxiliary pump. According to another advantageous characteristic, at least one wheel brake is connected to the pressure side of the auxiliary pump via a non-return valve open towards the wheel brake.

Dessin La présente invention sera décrite ci-après de manière plus détaillée à l'aide d'un exemple de réalisation d'une installation de freins hydrauliques représenté dans l'unique figure annexée : La figure représente le schéma d'une installation de freins hydrauliques de véhicule à régulation de patinage. The present invention will be described in more detail below with the aid of an exemplary embodiment of a hydraulic brake installation shown in the single attached figure: The figure represents the diagram of a hydraulic brake installation of skating regulation vehicle.

4 Description d'un mode de réalisation de l'invention L'installation ou système de freins hydrauliques de véhicule 1 à régulation de patinage représenté dans la figure comporte deux circuits de freins I, II reliés au maître-cylindre de frein 2 à double circuit. Dans l'exemple de réalisation, deux freins de roue 3 sont reliés à chaque circuit de freins I, II ; le nombre de deux circuits de freins I, II n'est pas limitatif de même que le nombre de freins de roue 3 pour chaque circuit de freins I, II selon l'invention. Chaque frein de roue 3 comporte une vanne de montée en pression de frein 4 et une vanne de réduction de pression 5. Les vannes de montée en pression 4 sont des électrovannes à tiroir à 2/2 voies, ouvertes dans leur position de base en l'absence de courant ; les vannes de réduction de pression de frein 5 sont des électrovannes à tiroir à 2/2 voies fermées dans leur position de base en l'absence de courant. Des clapets antiretour 6 sont branchés hydrauliquement en parallèle sur les vannes de montée en pression 4, dans la direction allant des freins de roue 3 vers le maître-cylindre de frein 2. Chaque circuit de freins I, II comporte une vanne de coupure 7 qui relie le circuit de freins au maître-cylindre 2. Les vannes de coupure 7 sont reliées aux vannes de montée en pression 4. Les vannes de coupure 7 sont des vannes à tiroir à 2/2 voies ouvertes dans leur position de base, en l'absence de courant ; des clapets antiretour 8 sont branchés en parallèle sur les vannes de coupure ; ces clapets antiretour sont passants dans le sens allant du maître-cylindre 2 vers les freins de roue 3. Chaque circuit de freins I, II est équipé d'une pompe hydraulique 9 dont le côté aspiration est relié aux freins de roue 3 par les vannes de réduction de pression de frein 5. Le côté aspiration des pompes hydrauliques 9 est également relié par des vannes d'aspiration 10 au maître-cylindre 2. Les vannes d'aspiration 10 sont des électrovannes à tiroir à 2/2 voies fermées dans leur position de base en l'absence de courant. Le côté aspiration des pompes hydrauliques 9 est en outre relié à un accumulateur hydraulique 11 pour stocker de manière intermédiaire du liquide de frein arrivant au cours de la régulation antipatinage par l'ouverture des vannes de réduction de pression de frein 5 à partir des freins de roue 3. Des clapets antiretour 12 sont montés entre les accumulateurs hydrauliques 11 et le côté aspiration des pompes hydrauliques 9 ; ces clapets antiretour 12 sont ouverts en direction des pompes hydrauliques 9. Les pompes 5 hydrauliques 9 sont entraînées par un même moteur électrique 13. Les vannes de montée en pression ou d'établissement de pression de frein 4 et les vannes de réduction de pression de frein 5 constituent des dispositifs de vannes de modulation de pression de frein permettant une régulation individuelle par roue, des pressions de freins dans les freins de roue 3 pour la régulation antipatinage. Pour la régulation antipatinage, on entraîne les pompes hydrauliques 9, alors que les vannes de coupure 7 peuvent être fermées pour la régulation antipatinage, pour couper hydrauliquement le maître-cylindre 2 par rapport à l'installation de freins 1. Pour aspirer du liquide de frein, on peut ouvrir les vannes d'aspiration 10. Les régulations antipatinage, par exemple dans les systèmes de protection antiblocage de frein de régulation d'entraînement et/ou de régulation de la dynamique de roulage (systèmes correspondant aux dénominations ABS, ASR ESP, FDR), sont des systèmes connus ne nécessitant pas de description détaillée. Le circuit de freins I est raccordé par un clapet antiretour 14 traversé en direction du circuit de frein I au côté pression d'une pompe auxiliaire 15 qui est également une pompe hydraulique. La pompe auxiliaire 15 est équipée de son propre moteur électrique 16 qui en assure l'entraînement. Dans l'exemple de réalisation, la pompe auxiliaire 15 comporte un certain nombre, par exemple neuf éléments de pompe 17 entraînés en commun par le moteur électrique 16 et branchés hydrauliquement en parallèle ; cela signifie que les côtés refoulement des éléments de pompe sont reliés en commun au clapet antiretour 14 du circuit de freins I. Les côtés aspiration des éléments de pompe 17 sont également reliés entre-eux. La pompe auxiliaire 15 peut être par exemple une pompe à plusieurs pistons, telle que par exemple une pompe de type série, de type en opposition ou de type étoile, même dans plusieurs plans, et dont les pistons sont entraînés par le moteur électrique 16, commun, à l'aide d'un ou plusieurs excentriques. Le DESCRIPTION OF AN EMBODIMENT OF THE INVENTION The installation or system of hydraulic brakes of a vehicle 1 with slippage regulation represented in the figure comprises two brake circuits I, II connected to the brake master cylinder 2 with a double circuit. . In the exemplary embodiment, two wheel brakes 3 are connected to each brake circuit I, II; the number of two brake circuits I, II is not limiting as the number of wheel brakes 3 for each brake circuit I, II according to the invention. Each wheel brake 3 comprises a brake pressure increase valve 4 and a pressure reduction valve 5. The pressure increase valves 4 are 2/2-way valve solenoid valves, open in their basic position in the first position. absence of current; the brake pressure reducing valves 5 are 2/2-way gate solenoid valves closed in their basic position in the absence of current. Check valves 6 are hydraulically connected in parallel with the pressure increase valves 4, in the direction from the wheel brakes 3 to the brake master cylinder 2. Each brake circuit I, II comprises a shut-off valve 7 which connects the brake circuit to the master cylinder 2. The shut-off valves 7 are connected to the pressure increase valves 4. The shut-off valves 7 are 2/2-way slide valves open in their basic position, in the absence of current; check valves 8 are connected in parallel to the shut-off valves; these non-return valves are passing in the direction from the master cylinder 2 to the wheel brakes 3. Each brake circuit I, II is equipped with a hydraulic pump 9 whose suction side is connected to the wheel brakes 3 by the valves The suction side of the hydraulic pumps 9 is also connected by suction valves 10 to the master cylinder 2. The suction valves 10 are 2/2-way gate solenoid valves closed in their respective ports. basic position in the absence of current. The suction side of the hydraulic pumps 9 is further connected to a hydraulic accumulator 11 for intermediate storage of the brake fluid arriving during the traction control by the opening of the brake pressure reduction valves 5 from the brakes of wheel 3. Non-return valves 12 are mounted between the hydraulic accumulators 11 and the suction side of the hydraulic pumps 9; these check valves 12 are open towards the hydraulic pumps 9. The hydraulic pumps 9 are driven by the same electric motor 13. The valves for increasing pressure or setting brake pressure 4 and the pressure reducing valves of brake 5 constitute brake pressure modulation valve devices allowing individual regulation by wheel, brake pressures in the wheel brakes 3 for traction control. For the traction control, the hydraulic pumps 9 are driven, while the shut-off valves 7 can be closed for the traction control, to hydraulically cut the master cylinder 2 with respect to the brake installation 1. To suck liquid from Vacuum control valves can be opened. 10. Traction control systems, eg in anti-lock brake systems for drive control and / or regulation of driving dynamics (systems corresponding to the names ABS, ASR ESP , FDR), are known systems that do not require detailed description. The brake circuit I is connected by a non-return valve 14 crossed in the direction of the brake circuit I to the pressure side of an auxiliary pump 15 which is also a hydraulic pump. The auxiliary pump 15 is equipped with its own electric motor 16 which drives it. In the exemplary embodiment, the auxiliary pump 15 comprises a number, for example nine pump elements 17 driven in common by the electric motor 16 and hydraulically connected in parallel; this means that the discharge sides of the pump elements are connected in common with the non-return valve 14 of the brake circuit I. The suction sides of the pump elements 17 are also connected to each other. The auxiliary pump 15 may be for example a multi-piston pump, such as for example a series type pump, of the opposite type or of the star type, even in several planes, and whose pistons are driven by the electric motor 16, common, using one or more eccentrics. The

6 mode de réalisation de la pompe auxiliaire 15, décrit à titre d'exemple n'est pas indispensable à l'invention. La pompe auxiliaire 15 assure une montée en pression de frein très rapide ; son côté aspiration est relié directement au réservoir de liquide de frein 18, c'est-à-dire sans interposition d'une vanne ou d'un élément analogue et de préférence avec une conduite courte. Dans l'exemple de réalisation, on a un réservoir de liquide de frein 18, distinct pour la pompe auxiliaire 15. Comme indiqué par le trait interrompu 19, le côté aspiration de la pompe auxiliaire 15, peut également être relié au io réservoir de liquide de frein 20, existant, du système ou de l'installation de freins 1 du véhicule ; ce réservoir se trouve usuellement sur le maître-cylindre de frein 2. Dans ce cas, il n'est pas nécessaire de prévoir un réservoir de liquide de frein supplémentaire 18. Le côté aspiration de la pompe auxiliaire 15 relié aux différents côtés aspiration des éléments 15 de pompe 17. Le branchement direct du côté aspiration de la pompe auxiliaire 15 sur le réservoir auxiliaire 18 de liquide de frein ou sur le réservoir de liquide de frein existant 20, permet à la pompe auxiliaire 15 d'assurer une montée en pression considérablement plus rapide que ne le permettent les pompes hydrauliques 9 des circuits de freins I, II ; en 20 effet, celles-ci doivent aspirer le liquide de frein du maître-cylindre de frein 2 par les vannes d'aspiration 10 et lorsque le maître-cylindre de frein 2 n'est pas actionné, le liquide de frein est sans pression. Le liquide de frein aspiré, est fortement étranglé par la perte de charge dans la vanne d'aspiration 10 et par la perte de charge dans le maître- 25 cylindre 2 qui, du fait de sa construction, a une très grande perte de charge, de sorte que le liquide est fortement étranglé. Une montée en pression de frein avec la pompe auxiliaire 15 offre un avantage considérable en particulier dans les cas nécessitant une montée en pression de frein très rapide et/ou lorsque le 30 maître-cylindre de frein 2 n'est pas actionné et que l'installation de freins du véhicule 1, est sans pression. De tels cas d'application sont la régulation de la dynamique de roulage dont l'efficacité pour éviter le dérapage est augmentée par une action rapide des freins et permet d'éviter un accident ou de réduire les conséquences d'un accident, ce 35 qui est d'autant plus efficace que l'action sur les freins est rapide. La 6 embodiment of the auxiliary pump 15, described by way of example is not essential to the invention. The auxiliary pump 15 ensures a very rapid rise in brake pressure; its suction side is connected directly to the brake fluid reservoir 18, that is to say without interposition of a valve or the like and preferably with a short pipe. In the exemplary embodiment, there is a separate brake fluid reservoir 18 for the auxiliary pump 15. As indicated by the broken line 19, the suction side of the auxiliary pump 15 can also be connected to the liquid reservoir brake 20, existing, the system or the installation of brakes 1 of the vehicle; this reservoir is usually found on the brake master cylinder 2. In this case, it is not necessary to provide an additional brake fluid reservoir 18. The suction side of the auxiliary pump 15 connected to the different suction sides of the elements The direct connection of the suction side of the auxiliary pump 15 to the auxiliary reservoir 18 of the brake fluid or to the existing brake fluid reservoir 20 allows the auxiliary pump 15 to ensure a considerable rise in pressure. faster than the hydraulic pumps 9 of the brake circuits I, II; in fact, these must suck the brake fluid from the master brake cylinder 2 by the suction valves 10 and when the brake master cylinder 2 is not actuated, the brake fluid is without pressure. The sucked-up brake fluid is greatly restricted by the pressure drop in the suction valve 10 and by the pressure drop in the master cylinder 2 which, due to its construction, has a very large pressure drop. so that the liquid is strongly strangled. A rise in brake pressure with the auxiliary pump 15 offers a considerable advantage, particularly in cases requiring a very rapid rise in brake pressure and / or when the brake master cylinder 2 is not actuated and the brake installation of the vehicle 1, is without pressure. Such application cases are the regulation of the driving dynamics whose effectiveness to prevent skidding is increased by a rapid action of the brakes and makes it possible to avoid an accident or to reduce the consequences of an accident, which is even more effective than the action on the brakes is fast. The

7 commande ou la régulation de la pompe auxiliaire 15 se fait à l'aide d'une électronique de commande ou de régulation non détaillée ici, de l'installation de freins de véhicule 1 ; les électrovannes 4, 5, 7, 10 et les moteurs électriques 13 des pompes hydrauliques 9, sont commandés ou régulés. Une vanne de remplissage 21 est prévue pour remplir le réservoir auxiliaire de liquide de frein 18 avec du liquide de frein ; cette vanne auxiliaire relie le côté aspiration de la pompe d'aspiration 15 et ainsi le réservoir auxiliaire de liquide de frein 18 au côté pression de la pompe hydraulique 9 du circuit de freins I. Le remplissage se fait lorsque l'installation de freins de véhicule 1 n'est pas actionnée, que la vanne d'aspiration 10 est ouverte pour remplir le réservoir supplémentaire de liquide de frein 18. Les freins de roue 3 reliés au circuit de freins I lui-même relié à la pompe auxiliaire 15, sont associés par leur essieu avant à un véhicule automobile car pendant le freinage, les roues avant sont en plus sollicitées par un déplacement dynamique du poids et normalement ces roues apporteront la plus grande part du freinage qui sera jamais possible. Il n'est toutefois pas indispensable que les freins de roue 3 associés à l'essieu avant, soient reliés à la pompe auxiliaire 15 ; d'autres freins de roue 3 ou un frein de roue 3 de l'essieu avant avec une répartition en X entre les circuits de freins et un frein de roue 3 d'une roue arrière peuvent être reliés au circuit de freins I raccordé à la pompe auxiliaire 15. 30 NOMENCLATURE 7 control or regulation of the auxiliary pump 15 is done using a control or control electronics not detailed here, the installation of vehicle brakes 1; the solenoid valves 4, 5, 7, 10 and the electric motors 13 of the hydraulic pumps 9 are controlled or regulated. A filling valve 21 is provided to fill the auxiliary reservoir with brake fluid 18 with brake fluid; this auxiliary valve connects the suction side of the suction pump 15 and thus the auxiliary reservoir of brake fluid 18 to the pressure side of the hydraulic pump 9 of the brake circuit I. The filling is done when the installation of vehicle brakes 1 is not actuated, that the suction valve 10 is open to fill the additional reservoir of brake fluid 18. The wheel brakes 3 connected to the brake circuit I itself connected to the auxiliary pump 15, are associated by their front axle to a motor vehicle because during braking, the front wheels are also solicited by a dynamic displacement of the weight and normally these wheels will bring the greatest part of the braking that will ever be possible. It is however not essential that the wheel brakes 3 associated with the front axle, are connected to the auxiliary pump 15; other wheel brakes 3 or a wheel brake 3 of the front axle with an X distribution between the brake circuits and a wheel brake 3 of a rear wheel may be connected to the brake circuit I connected to the auxiliary pump 15. 30 NOMENCLATURE

1 installation/ système hydraulique de frein de véhicule 2 maître-cylindre de frein à deux circuits 3 frein de roue 4 vanne de montée en pression 5 vanne de réduction de la pression 6 clapet antiretour 7 vanne de coupure 8 clapet antiretour 9 pompe hydraulique 10 vanne d'aspiration 11 accumulateur hydraulique 12 clapet antiretour 13 moteur électrique 14 clapet antiretour 15 pompe auxiliaire 16 moteur électrique de la pompe auxiliaire 17 élément de pompe 18 réservoir de liquide de frein 19 trait interrompu 20 réservoir de liquide de frein 21 vanne de remplissage25 1 installation / hydraulic vehicle brake system 2 dual circuit brake master cylinder 3 wheel brake 4 pressure relief valve 5 pressure reduction valve 6 non-return valve 7 shut-off valve 8 check valve 9 hydraulic pump 10 valve suction 11 hydraulic accumulator 12 check valve 13 electric motor 14 non-return valve 15 auxiliary pump 16 auxiliary pump electric motor 17 pump element 18 brake fluid reservoir 19 broken line 20 brake fluid reservoir 21 filling valve25

Claims (1)

REVENDICATIONS1» Installation de freins hydrauliques de véhicule à régulation antipatinage comportant au moins un circuit de freins I relié à un maître-cylindre (2) et à au moins un frein de roue (3), ainsi qu'une pompe hydraulique (9) dont le côté pression est relié à au moins un frein de roue (3), installation de frein (1) caractérisée en ce qu'elle comporte : - une pompe auxiliaire (15) dont le côté pression est relié à au moins un frein de roue (3). 2» Installation de freins hydrauliques de véhicule à régulation antipatinage selon la revendication 1, caractérisée en ce qu' au moins un circuit de freins I est relié au côté pression de la pompe auxiliaire (15) . 3» Installation de freins hydrauliques de véhicule à régulation antipatinage selon la revendication 1, caractérisée en ce que la pompe auxiliaire (15) comporte plusieurs éléments de pompe (17) dont le côté pression est relié à au moins un frein de roue (3). 4» Installation de freins hydrauliques de véhicule à régulation antipatinage selon la revendication 1, caractérisée en ce que le côté aspiration de la pompe auxiliaire (15) est relié directement à un réservoir de liquide de frein (18, 20). 5» Installation de freins hydrauliques de véhicule à régulation antipatinage selon la revendication 4, caractérisée en ce que la pompe auxiliaire (15) a son propre réservoir de liquide de frein (18). 6» Installation de freins hydrauliques de véhicule à régulation antipatinage selon la revendication 1, 10 caractérisée en ce qu' elle est une installation de freins (1) à plusieurs circuits I, II et seulement un circuit de freins I est relié au côté pression de la pompe auxiliaire (15) . 7» Installation de freins hydrauliques de véhicule à régulation antipatinage selon la revendication 1, caractérisée en ce qu' au moins un frein de roue (3) est relié au côté pression de la pompe 10 auxiliaire (15) par l'intermédiaire d'un clapet antiretour (14) ouvert en direction du frein de roue (3). 15 CLAIMS1 »Installation of hydraulic vehicle brakes with traction control comprising at least one brake circuit I connected to a master cylinder (2) and at least one wheel brake (3), and a hydraulic pump (9) including the pressure side is connected to at least one wheel brake (3), brake installation (1) characterized in that it comprises: - an auxiliary pump (15) whose pressure side is connected to at least one wheel brake (3). 2 »Installation of hydraulic vehicle brake with traction control according to claim 1, characterized in that at least one brake circuit I is connected to the pressure side of the auxiliary pump (15). 3 »Installation of hydraulic vehicle brake with traction control according to claim 1, characterized in that the auxiliary pump (15) has a plurality of pump elements (17) whose pressure side is connected to at least one wheel brake (3). . 4 »Installation of hydraulic vehicle brake with traction control according to claim 1, characterized in that the suction side of the auxiliary pump (15) is connected directly to a brake fluid reservoir (18, 20). 5 »Installation of hydraulic vehicle brake with traction control according to claim 4, characterized in that the auxiliary pump (15) has its own brake fluid reservoir (18). 6 »installation of hydraulic vehicle brake with traction control according to claim 1, characterized in that it is a brake system (1) with multiple circuits I, II and only one brake circuit I is connected to the pressure side of the auxiliary pump (15). 7 »Installation of hydraulic vehicle brake with traction control according to claim 1, characterized in that at least one wheel brake (3) is connected to the pressure side of the auxiliary pump (15) via a non-return valve (14) open towards the wheel brake (3). 15
FR1159165A 2010-10-13 2011-10-11 INSTALLATION OF HYDRAULIC BRAKES OF A VEHICLE WITH ANTI-PIPE CONTROL Withdrawn FR2966116A1 (en)

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DE102012223319A1 (en) * 2012-12-17 2014-06-18 Robert Bosch Gmbh Slip-controlled hydraulic vehicle brake system
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DE4034114A1 (en) * 1990-10-26 1992-04-30 Bosch Gmbh Robert HYDRAULIC BRAKE SYSTEM, ESPECIALLY FOR MOTOR VEHICLES
JPH08150911A (en) * 1994-11-28 1996-06-11 Mazda Motor Corp Anti-lock brake device of vehicle
DE10324243A1 (en) * 2003-05-28 2004-12-16 Bayerische Motoren Werke Ag Method and device for braking a motor vehicle using a driver assistance system
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