WO2009129887A1 - Système de cylindre de frein principal à détection d’actionnement pour une installation de freinage de véhicule automobile et installation de freinage de véhicule automobile - Google Patents

Système de cylindre de frein principal à détection d’actionnement pour une installation de freinage de véhicule automobile et installation de freinage de véhicule automobile Download PDF

Info

Publication number
WO2009129887A1
WO2009129887A1 PCT/EP2009/001342 EP2009001342W WO2009129887A1 WO 2009129887 A1 WO2009129887 A1 WO 2009129887A1 EP 2009001342 W EP2009001342 W EP 2009001342W WO 2009129887 A1 WO2009129887 A1 WO 2009129887A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
position detection
master brake
brake cylinder
cylinder
Prior art date
Application number
PCT/EP2009/001342
Other languages
German (de)
English (en)
Inventor
Klaus Lemke
Daniel Noll
Original Assignee
Lucas Automotive Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lucas Automotive Gmbh filed Critical Lucas Automotive Gmbh
Publication of WO2009129887A1 publication Critical patent/WO2009129887A1/fr

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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units
    • 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
    • B60T13/24—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 gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units

Definitions

  • the present invention relates to a master brake cylinder assembly for a motor vehicle brake system having at least one piston assembly with a piston which is displaceably guided in a cylinder bore in a cylinder housing, wherein the piston with the cylinder bore bounded by a hydraulic brake circuit fluidly coupled pressure chamber.
  • an electro-mechanical switch is often used, which detects an actuation of a brake pedal of the vehicle brake system by the driver of the motor vehicle.
  • This electromechanical switch is designed as a separate component and mounted in the footwell of the vehicle. To ensure proper operation of the switch and thus also the brake warning lights, the switch must be mounted in a fixed position either on the brake pedal or relative to the brake pedal and adjusted in this position. Such to be performed after installation of the pedals assembly and adjustment work are relatively difficult and time consuming, since the footwell of the motor vehicle is generally difficult to access.
  • the document DE 100 53 995 A1 therefore proposes to use a signal generated by a device integrated in a master brake cylinder and indicating an actuation of the master brake cylinder for controlling the brake warning lights of the motor vehicle.
  • the master cylinder described in this document comprises a housing with a longitudinal bore formed therein, in which a first and a second piston are sealingly and axially displaceably guided, wherein in a recess formed on the second piston, a pin or ringsegment-shaped element of a magnetic Material is arranged.
  • a with respect to the longitudinal bore extending in the radial direction blind bore for receiving a plug is formed, which carries on one of the longitudinal bore facing end face a Hall sensor.
  • the Hall sensor Upon displacement of the second piston due to actuation of the master cylinder, the Hall sensor generates an electrical signal indicative of an operation of the master cylinder in response to detection of displacement of the pin or ring segment shaped magnetic material integrally formed with the second piston relative to the Hall sensor , To achieve the required Chen measuring accuracy is in such a signal generating device, a relatively high cost for adjusting the equipped with the Hall sensor plug relative to the integrally formed with the second piston element made of magnetic material required, these adjustments must be repeated when replacing the plug due to a defect ,
  • the document DE-OS 2 010 073 discloses a master cylinder with a mechanical switch for actuating the brake light lamps of a motor vehicle.
  • the switch comprises a plunger which, when the brake is not actuated, cooperates with an outer circumference of a piston guided in a bore of a housing and is thereby held in a first depressed position.
  • an associated displacement of the piston in the bore of the plunger is displaced by the force of a compression spring in a second position and protrudes in the region of a formed on the piston recess into the bore.
  • a switching contact is closed so that the brake light lamps of the motor vehicle are actuated.
  • the document US 5,016,442 describes a master cylinder with two pistons which are axially displaceably guided in a first bore formed in a housing.
  • a compensating piston is guided axially displaceable, wherein the second bore is fluid-conductively connected to arranged in the first bore pressure chambers.
  • a first magnet is disposed, while the balance piston carries a second magnet.
  • the compensating piston is displaced from its rest position as a result of the pressure difference in the pressure chambers until it comes into contact with stop elements.
  • the displacement of the second magnet connected to the balance piston relative to the first magnet the reed switch is actuated, whereupon a warning signal is issued to a driver indicating a failure of the affected brake circuit.
  • the document DE 103 52 589 B4 shows a master brake cylinder arrangement in which the secondary piston ben is mechanically coupled in a starting position with a position detection element, which moves under spring bias over a short portion of a movement of the secondary piston for detecting a brake actuation with this.
  • a hydraulic coupling of position sensing element and of the secondary piston limited pressure chamber is proposed.
  • the master brake cylinder arrangement proposed in this prior art has been proven in practice, it has the disadvantage that due to the required coupling of position sensing element and secondary piston a connection between the cylinder bore to a guide shaft is provided, in which the position detection element is guided displaceable. This leads to a complex production of at least the cylinder housing.
  • the invention has for its object to provide a master cylinder of the type described, which has the same advantages as the generic state of the art, however, has a simpler structure.
  • a master brake cylinder assembly of the type described in which it is further provided that the piston is permanently coupled for common movement with a position sensing rod which is guided displaceably in a parallel to the first cylinder bore guide shaft in the cylinder housing, wherein the position sensing rod is a position detecting member whose position within the guide shaft can be detected by means of a position detection sensor attached to the cylinder housing.
  • a position sensing rod By using a position sensing rod, it is possible to design the coupling with the associated piston so that no connection between piston and position sensing rod within the cylinder housing is required. This makes the entire system much easier to set up.
  • An advantage of this solution is that no additional opening opens into the cylinder bore, in which the piston assembly is received, so that required manufacturing steps can be avoided.
  • a position sensing rod due to the permanent coupling of the same with the piston can monitor the movement of the piston of the piston assembly within the cylinder bore over a greater distance. As a result, additional information about a brake actuation by a driver or about the current actuation status of the brake can be determined not only qualitatively but also quantitatively.
  • the piston has a piston shaft which projects out of the cylinder housing and to which the position detection rod is coupled.
  • the piston skirt has at its projecting out of the cylinder housing free end a coupling portion, in particular a coupling flange, with which the position detection rod is coupled.
  • the position detection rod can be accommodated in a guide shaft, which although parallel to the at least one piston assembly receiving cylinder bore, but is completely independent of this.
  • This guide shaft can thus be formed separately in the cylinder housing. A connection of cylinder bore and guide shaft is not required.
  • the position detection rod is biased by means of a return spring in abutment with the coupling portion, in particular the coupling flange. This ensures that the position detection rod is biased for example in a starting position, which corresponds to an unactuated state of the motor vehicle brake system. By mutual contact but also ensures that the position sensing rod permanently moves with the piston during its operation.
  • a constructive development of the invention provides that the restoring spring is accommodated in the guide shaft and is supported at one end on an investment plug received in the guide shaft and bears against the position detection rod at the other end in a biasing manner.
  • This embodiment is advantageous in terms of manufacture and assembly, because the position detection rod can be inserted into the guide shaft, the restoring spring is subsequently inserted and finally is pressed into the cylinder housing in a force-locking or positive-locking manner by building up a preload of the installation plug.
  • the investment plug provides a connection of the guide shaft to the atmosphere.
  • the position detection rod in which the position detection rod is sealingly guided relative to a vacuum chamber of a braking force generator, it is possible by this measure that builds upon compression of the brake in the guide shaft no compression-related back pressure, which counteracts a movement of the position sensing rod.
  • the guide shaft is formed with a diameter step, wherein the position detection rod has a smaller diameter shaft portion and a larger diameter detection portion on which the position detecting member is provided. This diameter stage acts as captive during assembly and transport of the master cylinder assembly according to the invention. In operation, there is always a gap between the position sensing rod and the diameter stage in their home position, the return spring biasing the position sensing rod into abutment with the coupling portion, as described above.
  • the position detection member has a magnetic body and that the position detection sensor is formed by a Hall sensor. But it is also possible to perform the position detection differently, for example, optically or inductively.
  • the master brake cylinder arrangement according to the invention can be designed as desired.
  • a preferred embodiment provides, for example, that in the master cylinder, a first piston assembly is received with a primary piston and a second piston assembly with a secondary piston, wherein the position sensing rod is designed for common movement with the primary piston and / or the secondary piston.
  • the position sensing rod is coupled with the projecting out of the cylinder housing primary piston for common movement.
  • the position detection sensor provides a position signal which provides information about the current position of the piston coupled to the position detection rod.
  • the position signal for actuating a brake light system as an input signal for a brake assist system or a vehicle stabilization system, or further for controlling a regenerative braking system in connection with the use of a braking action of an electric motor acting as a generator or the like is usable.
  • the invention further relates to a motor vehicle brake system with a master brake cylinder assembly of the type described above.
  • a vacuum braking force generator with a chamber assembly having a vacuum chamber and a working chamber connectable to the ambient atmosphere, wherein the vacuum chamber and the working chamber separated by a movable wall wherein the piston coupled to the position sensing rod is connected for common movement with the movable wall.
  • the position sensing rod is in contact with the movable wall or coupled to this component of the vacuum braking force generator, preferably biased against this.
  • FIG. 1 shows a perspective, partially cutaway view of a master cylinder arrangement according to the invention
  • FIG. 2 shows an axis-containing sectional view of a braking force generator which is coupled to a master cylinder arrangement according to the invention
  • FIG. 3 shows a detailed view of section III from FIG. 2.
  • FIG. 1 shows a master brake cylinder assembly according to the invention is shown in a partially cutaway perspective view and generally designated 10.
  • This comprises a first piston arrangement 12 with a primary piston 14 and a second piston arrangement 16 with a secondary piston 18.
  • the two piston arrangements 12 and 16 are guided in a cylinder bore 20 of a cylinder housing 22.
  • the primary piston 14 defines with the cylinder bore 20 and the back of the secondary piston 18, a primary pressure chamber 24, whereas the secondary piston 18 with the cylinder bore 20 defines a secondary pressure chamber 26.
  • the primary piston 14 is via a return spring 28 in the position shown in Figure 1 biased, as is the secondary piston 18 is biased by a return spring 30 in the position shown in Figure 1.
  • circumferential grooves are provided in the cylinder bore 20, in which sealing rings 32 for sealingly guiding the piston arrangements 12 and 16 are accommodated. Further, in the cylinder housing 20 connection openings 34 and 36 are provided, which serve to fill the pressure chambers 24 and 26 via a reservoir.
  • the free right end of the primary piston 14 is formed with a flange 38.
  • a position detection rod 42 which is guided displaceably in a stepped guide shaft 44 of the cylinder housing 22.
  • the position detecting rod 42 has an elongated portion protruding from the cylinder housing 22 and an enlarged diameter detection portion 46.
  • the detection portion 46 is displaceably guided in a larger diameter portion 48 of the guide shaft 44.
  • a diameter step 45 is formed between the smaller diameter guide shaft 44 and the larger diameter portion 48.
  • the larger diameter portion 48 of the guide shaft 44 is closed at its left in Figure 1 end with a investment plug 50.
  • the investment plug 50 in this case has no opening, so that no air from the atmosphere in the guide shaft 44,48 enter and over this on the position detection rod 42 over into the vacuum chamber (see description below) can penetrate.
  • the contact plug 50 is preferably formed with an opening for pressure equalization.
  • a return spring 52 is supported, which is biased in the position shown in Figure 1.
  • a position detection element 54 in the form of a magnetic body is accommodated in the detection section 46 of the position detection rod 42.
  • the position detection sensor 56 detects the instantaneous relative position of the magnetic body of the position detection gate 54.
  • This relative movement is detected by the position detection sensor 56 and output as a corresponding signal.
  • This signal is used to detect the brake application, for example, as a result of a pedal operation of the driver or as a result of activation of the brake by a driver assistance system or a brake assist system.
  • This signal can be used, for example, to actuate brake warning lights, but also as further input signals for various vehicle systems.
  • the structure of the position detection device formed in this way is relatively simple, in particular in comparison to the prior art discussed at the beginning.
  • the master brake cylinder assembly 10 of the invention provides reliable operation and reliable detection of the current brake actuation condition. Due to the return spring 52, the position detection rod 42 always returns reliably to its initial position shown in Figure 1 and remains in abutment with the flange 38, so that a common movement of the position detection rod 42 and the primary piston 14 is ensured.
  • FIG. 2 shows a braking force generator 60 having a master brake cylinder arrangement 10 according to the invention.
  • the braking force generator 60 has a force input member 62 that can be coupled or coupled to a brake pedal (not shown).
  • the function of the braking force generator 60 is controlled via a control valve 64.
  • the control valve 64 is fluidly coupled to a chamber assembly 66, which is formed in Figure 2 as a tandem chamber assembly. It comprises two vacuum chambers and two working chambers, wherein in each case a vacuum chamber is separated from its associated working chamber via a movable wall 68 and 70. The two pairs of vacuum chamber and working chamber are separated by a fixed housing wall 72.
  • the two movable walls 68 and 70 are fixed on a displaceable in the direction of a longitudinal axis A control valve housing 74. As soon as a pressure difference acts on the movable walls 68 by 70, the control valve housing 74 is moved as a result of this pressure difference. This then actuates the primary piston 14 and thereby the secondary piston 18 of the master cylinder assembly 10. As described above, this operation can be detected via the position detection rod 42 due to its displacement in the guide shaft 44 and 48.
  • FIG. 3 shows an enlarged view of how the primary piston 14 is coupled to the control valve housing 74.
  • a multiply folded funnel-shaped element 76 is mounted on the control valve housing 74, which is received in the end-side opening of the control valve housing 74.
  • a tension spring 78 is supported in a conventional manner.
  • the free end 40 of the position detection rod 42 is also supported on this funnel-shaped element 76.
  • the position detection rod 42 shown in FIG. 1 is directly biased against the control valve housing 74 or against the funnel-shaped element 76 coupled thereto.
  • Figures 2 and 3 thus show a solution that can be integrated into a braking force generator with little effort and while ensuring reliable operation without major structural changes a position detection device according to the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

La présente invention concerne un système de cylindre de frein principal (10) pour une installation de freinage de véhicule automobile comprenant au moins un système de piston (12,16) doté d'un piston (14) guidé de manière mobile dans un alésage de cylindre (20) dans un boîtier de cylindre (22) et délimitant avec l'alésage de cylindre (20) une chambre de compression (24) couplée fluidiquement à un circuit de freinage hydraulique. Dans ce système de cylindre de frein principal (10), le piston (14) est couplé durablement à une barre de détection de position (42) guidée de manière mobile dans le boîtier de cylindre (22) dans un puits de guidage (44) parallèle au premier alésage de cylindre (20), de manière à se déplacer conjointement avec ladite barre, la barre de détection de position (42) comprenant un organe de détection de position (54) dont la position à l'intérieur du puits de guidage (44) peut être détectée au moyen d'un capteur de détection de position (56) installé sur le boîtier de cylindre (22).
PCT/EP2009/001342 2008-04-25 2009-02-25 Système de cylindre de frein principal à détection d’actionnement pour une installation de freinage de véhicule automobile et installation de freinage de véhicule automobile WO2009129887A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008020934.1 2008-04-25
DE200810020934 DE102008020934A1 (de) 2008-04-25 2008-04-25 Hauptbremszylinderanordnung mit Betätigungserfassung für eine Kraftfahrzeugbremsanlage und Kraftfahrzeugbremsanlage

Publications (1)

Publication Number Publication Date
WO2009129887A1 true WO2009129887A1 (fr) 2009-10-29

Family

ID=40578912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/001342 WO2009129887A1 (fr) 2008-04-25 2009-02-25 Système de cylindre de frein principal à détection d’actionnement pour une installation de freinage de véhicule automobile et installation de freinage de véhicule automobile

Country Status (2)

Country Link
DE (1) DE102008020934A1 (fr)
WO (1) WO2009129887A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103161856A (zh) * 2011-12-13 2013-06-19 现代摩比斯株式会社 车辆用主缸
DE112019006046T5 (de) 2018-12-03 2021-10-14 Hitachi Astemo, Ltd. Automobilgebrauch-Pedalhuberfassungsvorrichtung und Automobilgebrauch-Steuerungseinheit

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2962391A1 (fr) * 2010-07-12 2012-01-13 Bosch Gmbh Robert Dispositif maitre-cylindre pour vehicule automobile
DE102012022519A1 (de) * 2012-11-16 2014-05-22 Lucas Automotive Gmbh Hauptbremszylinderanordnung mit Betätigungserfassung für eine Kraftfahrzeugbremsanlage
JP6213730B2 (ja) * 2013-11-20 2017-10-18 日立オートモティブシステムズ株式会社 ブレーキ装置
KR101447165B1 (ko) * 2014-03-03 2014-10-10 한국델파이주식회사 브레이크 라이트 센서 모듈
FR3037548B1 (fr) * 2015-06-22 2019-05-17 Robert Bosch Gmbh Maitre-cylindre tandem
FR3037547B1 (fr) * 2015-06-22 2019-07-05 Robert Bosch Gmbh Maitre-cylindre tandem equipe d'un commutateur de feux de stop
DE102015213569A1 (de) 2015-07-20 2017-01-26 Robert Bosch Gmbh Hydraulikblock für ein Hydroaggregat einer Bremsregelung
DE102016005377A1 (de) 2016-05-04 2017-11-09 Fte Automotive Gmbh Hydraulikzylinder, insbesondere Hauptbremszylinder für hydraulische Bremsanlagen
DE102016014485A1 (de) 2016-12-06 2018-06-07 Lucas Automotive Gmbh Hauptbremszylinderanordnung mit Positionsgeberelement und Dichtungsanordnung
DE102016014483A1 (de) 2016-12-06 2018-06-07 Lucas Automotive Gmbh Hauptbremszylinderanordnung mit Positionsgeberelement und Kopplungsanordnung hierfür

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723916A1 (de) * 1987-07-18 1989-01-26 Daimler Benz Ag Hydraulische zweikreis-bremsanlage
DE3723842A1 (de) * 1987-07-18 1989-02-02 Daimler Benz Ag Bremsgeraet
FR2641508A1 (fr) * 1988-12-28 1990-07-13 Bosch Gmbh Robert Installation de freinage comportant un maitre-cylindre de frein realise comme un servofrein electro-hydraulique
US5231913A (en) * 1990-04-06 1993-08-03 Alfred Teves Gmbh Process for the adjustment of a brake power booster travel sensor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2010073A1 (de) 1970-03-04 1971-10-07 Volkswagenwerk Ag Anordnung mit einem Tandem Hauptbrems zylinder und elektrischen Schaltmitteln fur Bremshchtiampen
US5016442A (en) 1989-07-27 1991-05-21 Allied-Signal Inc. Master cylinder with fluid level and pressure failure detector
DE10053995A1 (de) 2000-10-31 2002-05-08 Continental Teves Ag & Co Ohg In einen Hauptzylinder integrierter Signalgeber mit Hall-Sensor
DE10059128A1 (de) * 2000-11-29 2002-06-13 Lucas Varity Gmbh Vorrichtung zur Ermittlung von Positionen und Bewegungen eines Bremspedales für eine Fahrzeugbremsanlage
DE10133163A1 (de) * 2001-02-20 2002-08-29 Bosch Gmbh Robert Messsystem
DE10352589B4 (de) 2003-11-11 2005-09-08 Lucas Automotive Gmbh Hauptbremszylinder mit einer Einrichtung zur Erzeugung eines eine Betätigung des Hauptbremszylinders anzeigenden elektrischen Signals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723916A1 (de) * 1987-07-18 1989-01-26 Daimler Benz Ag Hydraulische zweikreis-bremsanlage
DE3723842A1 (de) * 1987-07-18 1989-02-02 Daimler Benz Ag Bremsgeraet
FR2641508A1 (fr) * 1988-12-28 1990-07-13 Bosch Gmbh Robert Installation de freinage comportant un maitre-cylindre de frein realise comme un servofrein electro-hydraulique
US5231913A (en) * 1990-04-06 1993-08-03 Alfred Teves Gmbh Process for the adjustment of a brake power booster travel sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103161856A (zh) * 2011-12-13 2013-06-19 现代摩比斯株式会社 车辆用主缸
CN103161856B (zh) * 2011-12-13 2016-06-08 现代摩比斯株式会社 车辆用主缸
DE112019006046T5 (de) 2018-12-03 2021-10-14 Hitachi Astemo, Ltd. Automobilgebrauch-Pedalhuberfassungsvorrichtung und Automobilgebrauch-Steuerungseinheit

Also Published As

Publication number Publication date
DE102008020934A1 (de) 2009-10-29

Similar Documents

Publication Publication Date Title
WO2009129887A1 (fr) Système de cylindre de frein principal à détection d’actionnement pour une installation de freinage de véhicule automobile et installation de freinage de véhicule automobile
DE102004023852B4 (de) Bremshubsimulator
EP2920036B1 (fr) Ensemble maître-cylindre de frein à détection d'actionnement pour système de freinage de véhicule à moteur
EP3213168B1 (fr) Dispositif permettant de simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale
WO2012034661A1 (fr) Dispositif d'actionnement pour un système de freinage d'un véhicule automobile
WO2012059175A1 (fr) Dispositif d'actionnement, en particulier pour un système de freinage de véhicule
EP0082367A1 (fr) Maître-cylindre de frein hydraulique à double circuit du type tandem
DE102013007574A1 (de) Betätigungseinrichtung zur Anordnung zwischen einem Bremspedal und einem Hauptbremszylinder eines Kraftfahrzeugs
EP1851096A1 (fr) Unite de freinage pour faire fonctionner des freins d'une installation de freinage d'un vehicule
EP0651707B1 (fr) Frein assiste a depression
WO2016184609A1 (fr) Dispositif de production de force de freinage électrohydraulique pour un système de freinage électrohydraulique de véhicule à moteur
WO2004080772A1 (fr) Generateur de force de freinage pour un systeme de freinage de vehicule hydraulique, et systeme de freinage de vehicule hydraulique
EP3137351B1 (fr) Dispositif de simulation de force pour un élément de service, de préférence un simulateur de pedal, et arrangement pour activer un système d'embrayage électrique
DE102005052310A1 (de) Bremsbetätigungseinheit SBA
DE102020109453A1 (de) Elektrisch ansteuerbare Betätigungseinheit für eine Kraftfahrzeug-Bremsanlage, Bremskraftverstärker mit einer solchen elektrisch ansteuerbaren Betätigungseinheit und Kraftfahrzeug-Bremsanlage mit einem solchen Bremskraftverstärker
WO1999059855A1 (fr) Servofrein a depression comportant un systeme de production de signal electrique
WO2009109213A1 (fr) Générateur de force de freinage pour le système de freinage hydraulique dun véhicule à moteur et système de freinage d'un véhicule à moteur
DE4400688A1 (de) Fahrzeugbremsanlage mit einem elektronisch gesteuerten Verstärker
WO2015165449A1 (fr) Dispositif permettant de simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale
WO2020200919A1 (fr) Dispositif d'actionnement pour un système de freinage
DE102020109452A1 (de) Elektrisch ansteuerbare Betätigungseinheit für eine Kraftfahrzeugbremse, Bremskraftverstärker mit einer solchen elektrisch ansteuerbaren Betätigungseinheit und Kraftfahrzeug-Bremsanlage mit einem solchen Bremskraftverstärker
DE10323655A1 (de) Bremskraftverstärker
WO2019120669A1 (fr) Maître-cylindre pour un système de freinage d'un véhicule, dispositif de freinage et système de freinage muni d'un maître-cylindre de ce type, et procédé de fabrication d'un maître-cylindre
DE102007039182A1 (de) Bremskrafterzeuger für eine Kraftfahrzeugbremsanlage
EP3390175B1 (fr) Guide de piston dans un couvercle de boîtier, et usage d'un tel couvercle de boîtier dans un soupape pneumatique de freinage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09735315

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09735315

Country of ref document: EP

Kind code of ref document: A1