WO1999059853A1 - Brake actuating device - Google Patents

Brake actuating device Download PDF

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Publication number
WO1999059853A1
WO1999059853A1 PCT/EP1999/003413 EP9903413W WO9959853A1 WO 1999059853 A1 WO1999059853 A1 WO 1999059853A1 EP 9903413 W EP9903413 W EP 9903413W WO 9959853 A1 WO9959853 A1 WO 9959853A1
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WO
WIPO (PCT)
Prior art keywords
bellows
pedal
brake
reaction force
characteristic
Prior art date
Application number
PCT/EP1999/003413
Other languages
German (de)
French (fr)
Inventor
Peter Rieth
Original Assignee
Continental Teves Ag & Co. Ohg
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 Continental Teves Ag & Co. Ohg filed Critical Continental Teves Ag & Co. Ohg
Publication of WO1999059853A1 publication Critical patent/WO1999059853A1/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/38—Controlling members actuated by foot comprising means to continuously detect pedal position
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/03—Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G7/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
    • G05G7/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
    • G05G7/10—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance specially adapted for remote control

Definitions

  • the present invention relates to a brake actuation device, in particular for a motor vehicle brake system of the "brake-by-wire" type, with a pedal which is pivotally mounted on an axis and which is counteracted by elastic means
  • Actuating direction is biased, and has a damping means for the defined setting of a predetermined force-displacement characteristic, so that a certain reaction force is generated when actuated.
  • Such a device is e.g. B. from DE 195 40 705 AI known.
  • the force / displacement characteristic of the actuating pedal is generated by a stack of disk springs, which cooperate with a pneumatic piston-cylinder arrangement for the defined damping.
  • the damping takes place by flow of air through a bore provided in the piston.
  • the constant throttling effect of the previously mentioned bore is less advantageous, which only allows a restricted adaptation of the force / travel characteristic of the actuation pedal to a "pedal characteristic", for example specified by the vehicle manufacturer.
  • Another disadvantage is the friction occurring in the plate spring stack, which results in a small hysteresis. It is therefore an object of the present invention to propose means which allow a variable, preferably pedal travel or pedal speed-dependent damping of the travel simulator and thus a more flexible adaptation of the force / travel characteristics of the actuation pedal to a predetermined course.
  • a bellows is provided as a damping device.
  • the bellows is easy to manufacture and a major advantage is that the geometry sizes of the bellows relevant to the characteristic curve can be modified with little manufacturing effort.
  • the bellows consists of metal material and its ductile behavior allows the actuating device to function safely even in the event that, contrary to expectations, a crack occurs in the bellows. As a result, the actuating device has pronounced fail-safe behavior.
  • FIGS. 1 and 2 show a highly schematic view of the structure of the device according to the invention with the housing wall removed in each case, FIG. 1 corresponding to the front view and FIG. 2 showing the corresponding side view.
  • An actuating or brake pedal 1 hereinafter only a pedal, has a footplate 2 which is fastened to a rigid arm 3 which is rotatably mounted by means of an axis 4.
  • the desired progressive force / displacement characteristic is simulated by an elastic means that biases the pedal 1 against the direction of actuation, in other words simulated.
  • the motor vehicle driver thereby gets the impression that the pedal opposes increasing resistance as the pivoting progresses.
  • the reaction force or reaction force of the elastic means depends on the deflection, which ultimately corresponds to the pedal travel and a conical coil spring is used, for example.
  • the drawing also shows that a bellows 5 with radially outer corrugation or folding of its wall 6 is provided as a damping means.
  • the bellows 5 is supported at one end on a surface 7 of a housing 8 and the other end acts on a cranked lever 9, which is non-rotatably connected to the arm 3.
  • the space with the axis 4 and the articulated arm 3 is essentially bounded on all sides by surfaces of the housing 8.
  • an electrical evaluation device 10 for devices 11 electrically connected to it for detecting the actuation path, in particular pedal pivoting angle.
  • the invention provides that bellows wall thickness, bellows length, bellows diameter, the ratio of bellows inner diameter to bellows outer diameter and bellows fold varies individually independently of one another or in combination with one another over the length of the bellows body are. For example, it is possible to influence the characteristic curve by making the bellows diameter tapering from one end to the other end, or by increasing or decreasing the wall thickness from one end to the other. In addition, it is possible to design the distance between the individual shafts or folds differently, so that, with certain deflections, support effects of abutting shafts or folds can be used to vary the characteristic curve.
  • the bellows has an enclosed, compressible, gas volume in its interior, so that the characteristic of the reaction force can also be influenced thereby.
  • the bellows 5 is constructed from a plurality of material layers fastened to one another in the manner of a multilayer material.
  • the individual layers of material are preferably made of metal and are fastened to one another with the interposition of an elastic plastic, so that each layer can perform relative movements to a certain extent with respect to the associated other layer, which results in the desired stronger damping effect.
  • a particularly easy-to-install brake actuation device is achieved by arranging the bellows 5 together with the axle 4 for the pedal 1 in a common housing and fastening it directly to a wall of the motor vehicle.
  • the actuation module created in this way can be arranged on the wall in a manner protected against contamination and at the same time reduces assembly costs at the motor vehicle manufacturer because it only has to be electrically connected to actuating devices.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Control Devices (AREA)
  • Braking Elements And Transmission Devices (AREA)

Abstract

The invention relates to a brake actuating device, especially for a motor vehicle braking system of the 'brake-by-wire' type. The device comprises a pedal (1) which is mounted in a pivoting manner in a pivot bearing and by means of a spring-loaded device is pretensed against the direction of actuation, as well as a bellows (5) which constitutes a damping means and is used for the defined adjustments of a preset force-path characteristic. A substantial advantage of the bellows (5) is that values relevant to the characteristic curve can be simply varied during manufacture. It is especially advantageous if the bellows (5) also act as an elastic means, obviating the need for a separate spring.

Description

BremsbetätigungsvorrichtungBrake actuator
Die vorliegende Erfindung betrifft eine Bremsbetätigungsvorrichtung, insbesondere für eine Kraftfahrzeug-Bremsanlage vom Typ "Brake-by-wire" mit einem, an einer Achse schwenkbar gelagerten Pedal, das mit elastischen Mitteln entgegen derThe present invention relates to a brake actuation device, in particular for a motor vehicle brake system of the "brake-by-wire" type, with a pedal which is pivotally mounted on an axis and which is counteracted by elastic means
Betätigungsrichtung vorgespannt ist, und ein Dämpfungsmittel zur definierten Einstellung einer vorgegebenen Kraft-Weg- Charakteristik aufweist, so daß bei Betätigung eine bestimmte Rückwirkungskraft erzeugt wird.Actuating direction is biased, and has a damping means for the defined setting of a predetermined force-displacement characteristic, so that a certain reaction force is generated when actuated.
Eine derartige Einrichtung ist z. B. aus der DE 195 40 705 AI bekannt. Bei der vorbekannten Einrichtung wird die Kraft-/Weg- Charakteristik des Betätigungspedals durch einen Tellerfederstapel erzeugt, der zur definierten Dämpfung mit einer pneumatischen Kolben-Zylinder-Anordnung zusammenwirkt. Die Dämpfung erfolgt dabei durch Strömung der Luft durch eine im Kolben vorgesehene Bohrung .Such a device is e.g. B. from DE 195 40 705 AI known. In the previously known device, the force / displacement characteristic of the actuating pedal is generated by a stack of disk springs, which cooperate with a pneumatic piston-cylinder arrangement for the defined damping. The damping takes place by flow of air through a bore provided in the piston.
Weniger vorteilhaft ist bei der vorbekannten Einrichtung die konstante Drosselwirkung der vorhin erwähnten Bohrung anzusehen, die lediglich eine eingeschränkte Anpassung der Kraft-/Weg- Charakteristik des Betätigungspedals an eine, beispielsweise vom Fahrzeughersteller vorgegebene, eigene "Pedalcharakteristik" ermöglicht. Als nachteilig wird außerdem die im Tellerfederstapel auftretende Reibung empfunden, die eine kleine Hysterese zur Folge hat. Es ist daher Aufgabe der vorliegenden Erfindung, Mittel vorzuschlagen, die eine veränderbare, vorzugsweise pedalweg- bzw. pedalgeschwindigkeitsabhängige Dämpfung des Wegsimulators und somit eine flexiblere Anpassung der Kraft-/Weg-Charakteristik des Betätigungspedals an einen vorgegebenen Verlauf ermöglichen.In the known device, the constant throttling effect of the previously mentioned bore is less advantageous, which only allows a restricted adaptation of the force / travel characteristic of the actuation pedal to a "pedal characteristic", for example specified by the vehicle manufacturer. Another disadvantage is the friction occurring in the plate spring stack, which results in a small hysteresis. It is therefore an object of the present invention to propose means which allow a variable, preferably pedal travel or pedal speed-dependent damping of the travel simulator and thus a more flexible adaptation of the force / travel characteristics of the actuation pedal to a predetermined course.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß als Dämpfungseinrichtung ein Faltenbalg vorgesehen ist. Der Faltenbalg läßt sich einfach herstellen und ein wesentlicher Vorteil ist, daß die kennlinienrelevanten Geometriegrößen des Faltenbalges mit geringem herstellungstechnischen Aufwand abgeändert werden können.This object is achieved in that a bellows is provided as a damping device. The bellows is easy to manufacture and a major advantage is that the geometry sizes of the bellows relevant to the characteristic curve can be modified with little manufacturing effort.
In Konkretisierung des Erfindungsgedankens ist vorgesehen, daß eine progressiv ansteigende Kennlinie der Reaktionskraft in Relation zu dem Pedalweg dadurch erzeugt wird, daß Balgwandstärke, Balglänge, Balgdurchmesser, das Verhältnis von Balginnendurchmesser zu Balgaußendurchmesser und Balgfaltung einzeln unabhängig voneinander oder in Kombination miteinander über den Balgkörper verändert sind.In concretization of the concept of the invention, it is provided that a progressively increasing characteristic of the reaction force in relation to the pedal travel is generated in that the bellows wall thickness, bellows length, bellows diameter, the ratio of bellows inner diameter to bellows outer diameter and bellows fold are changed independently of one another or in combination with one another via the bellows body .
Der Faltenbalg besteht gemäß einer besonders bevorzugten Ausführungsform aus Metallwerkstoff und dessen duktiles Verhalten läßt sichere Funktion der Betätigungseinrichtung selbst für den Fall zu, daß wider Erwarten ein Riß in dem Faltenbalg entsteht. Folglich verfügt die Betätigungseinrichtung über ausgeprägtes fail-safe-Verhalten.According to a particularly preferred embodiment, the bellows consists of metal material and its ductile behavior allows the actuating device to function safely even in the event that, contrary to expectations, a crack occurs in the bellows. As a result, the actuating device has pronounced fail-safe behavior.
Eine einfache Montage bei dem Fahrzeughersteller wird schließlich dadurch ermöglicht, daß der Faltenbalg zusammen mit der Achse für das Pedal in einem gemeinsamen Gehäuse angeordnet ist . Die Figuren 1 und 2 zeigen stark schematisiert den Aufbau der erfindungsgemäßen Einrichtung bei jeweils entfernter Gehäusewandung wobei Fig. 1 der Frontansicht entspricht und der Fig. 2 die korrespondierende Seitenansicht zu entnehmen ist .A simple assembly at the vehicle manufacturer is finally made possible in that the bellows is arranged together with the axis for the pedal in a common housing. FIGS. 1 and 2 show a highly schematic view of the structure of the device according to the invention with the housing wall removed in each case, FIG. 1 corresponding to the front view and FIG. 2 showing the corresponding side view.
Ein Betätigungs- bzw. Bremspedal 1 nachstehend nur Pedal weist eine Fußtrittplatte 2 auf, die an einem biegesteifen, mittels einer Achse 4 drehbar gelagerten Arm 3 befestigt ist. Die gewünschte progressive Kraft-/Weg-Charakteristik wird durch ein das Pedal 1 entgegen der Betätigungsrichtung vorspannendes elastisches Mittel nachgebildet, mit anderen Worten simuliert. Der Kraftfahrzeugführer erhält dadurch den Eindruck, daß das Pedal unter fortschreitender Verschwenkung einen zunehmenden Widerstand entgegensetzt. Die Rück-wirkungskraft oder Reaktionskraft des elastischen Mittels ist abhängig von der Auslenkung, welche letztendlich dem zurückgelegten Pedalweg entspricht und es kommt beispielsweise eine konische Schraubenfedern zum Einsatz.An actuating or brake pedal 1, hereinafter only a pedal, has a footplate 2 which is fastened to a rigid arm 3 which is rotatably mounted by means of an axis 4. The desired progressive force / displacement characteristic is simulated by an elastic means that biases the pedal 1 against the direction of actuation, in other words simulated. The motor vehicle driver thereby gets the impression that the pedal opposes increasing resistance as the pivoting progresses. The reaction force or reaction force of the elastic means depends on the deflection, which ultimately corresponds to the pedal travel and a conical coil spring is used, for example.
Der Zeichnung ist weiter zu entnehmen, daß als Dämpfungsmittel ein Faltenbalg 5 mit radial äußerer Wellung oder Faltung seiner Wandung 6 versehen ist . Der Faltenbalg 5 ist mit einem Ende an einer Fläche 7 eines Gehäuse 8 abgestützt und das andere Ende beaufschlagt einen abgekröpften Hebel 9, welcher drehfest mit dem Arm 3 verbunden ist . Der Raum mit der Achse 4 und dem daran angelenkten Arm 3 wird im wesentlichen allseitig nach außen durch Flächen des Gehäuse 8 begrenzt. Im Inneren des Gehäuse 8 ist ferner eine elektrische Auswertevorrichtung 10 für mit dieser elektrisch verbundene Einrichtungen 11 zum Erfassen des Betätigungsweges, insbesondere PedalSchwenkwinkels angeordnet.The drawing also shows that a bellows 5 with radially outer corrugation or folding of its wall 6 is provided as a damping means. The bellows 5 is supported at one end on a surface 7 of a housing 8 and the other end acts on a cranked lever 9, which is non-rotatably connected to the arm 3. The space with the axis 4 and the articulated arm 3 is essentially bounded on all sides by surfaces of the housing 8. In the interior of the housing 8 there is also an electrical evaluation device 10 for devices 11 electrically connected to it for detecting the actuation path, in particular pedal pivoting angle.
Eine starke Vereinfachung des Bauaufwandes geht damit einher, daß der Faltenbalg 5 zugleich als elastisches Mittel ausgebildet ist und die erforderliche Reaktionskraft und Rückstellkraft zum Zurückstellen des Pedals 1 aus einer ausgelenkten Stellung in eine kraftfreie Ruhelage aufbringt. Durch diese Bauweise kann nämlich ein gesondert zu montierendes elastisches Mittel entfallen, was zu großen Kostenvorteilen führt .A great simplification of the construction work goes hand in hand with the fact that the bellows 5 is at the same time designed as an elastic means and the required reaction force and restoring force Restoring the pedal 1 from a deflected position to a power-free rest position. Because of this design, an elastic means to be installed separately can be omitted, which leads to great cost advantages.
Für eine progressiv ansteigende Kennlinie der Reaktionskraft in Relation zu dem Pedalweg sieht die Erfindung vor, daß Balgwand- stärke, Balglänge, Balgdurchmesser, das Verhältnis von Balginnendurchmesser zu Balgaußendurchmesser und Balg-faltung einzeln unabhängig voneinander oder in Kombination miteinander über die Länge des Balgkörpers unterschiedlich variiert sind. So ist es beispielsweise möglich dadurch auf die Kennlinie Einfluß zu nehmen, daß der Balgdurchmesser konisch zulaufend von einem Ende zu dem anderen Ende ausgeführt ist, oder daß die Wandstärke von dem einen zu dem an deren Ende zu- bzw. abnimmt. Außerdem ist es möglich, den Abstand zwischen den einzelnen Wellen oder Falten unterschiedlich zu gestalten, so daß bei bestimmten Auslenkungen Auflageeffekte von aneinander anliegenden Wellen oder Falten zur Variation der Kennlinie ausgenutzt werden können.For a progressively increasing characteristic curve of the reaction force in relation to the pedal travel, the invention provides that bellows wall thickness, bellows length, bellows diameter, the ratio of bellows inner diameter to bellows outer diameter and bellows fold varies individually independently of one another or in combination with one another over the length of the bellows body are. For example, it is possible to influence the characteristic curve by making the bellows diameter tapering from one end to the other end, or by increasing or decreasing the wall thickness from one end to the other. In addition, it is possible to design the distance between the individual shafts or folds differently, so that, with certain deflections, support effects of abutting shafts or folds can be used to vary the characteristic curve.
In Weiterbildung der Erfindung ist es vorgesehen, daß der Faltenbalg in seinem Inneren ein eingeschlossenes, kompressibles, Gas- volumen aufweist, so daß auch dadurch die Kennlinie der Reaktions- kraft beeinflußbar ist.In a further development of the invention it is provided that the bellows has an enclosed, compressible, gas volume in its interior, so that the characteristic of the reaction force can also be influenced thereby.
Für eine abgeänderte insbesondere verstärkte Dämpfungswirkung des Faltenbalges 5 ist dieser aus mehreren, aneinander befestigten Werkstofflagen nach Art eines Mehrschichtwerkstoffes aufgebaut . Vorzugsweise sind die einzelnen Werkstofflagen aus Metall und sind unter Zwischenlage eines elastischen Kunststoffes aneinander befestigt, so daß jede Lage bezogen auf die zugeordnete andere Lage in bestimmtem Maße Relativbewegungen ausführen kann, woraus der gewünschte stärkere Dämpfungseffekt resultiert. Es ist allerdings auch möglich durch abschnittsweise geänderte Werkstoffe, insbesondere Metallwerkstoffe bei der Herstellung des Faltenbalgs 5 und durch die unterschiedlichen Steifigkeiten dieser Werkstoffe die Kennlinie abzuändern.For a modified, in particular reinforced, damping effect of the bellows 5, the bellows 5 is constructed from a plurality of material layers fastened to one another in the manner of a multilayer material. The individual layers of material are preferably made of metal and are fastened to one another with the interposition of an elastic plastic, so that each layer can perform relative movements to a certain extent with respect to the associated other layer, which results in the desired stronger damping effect. However, it is it is also possible to change the characteristic curve by materials which have been changed in sections, in particular metal materials in the manufacture of the bellows 5 and by the different stiffnesses of these materials.
Schließlich wird eine besonders montagefreundliche Bremsbetäti- gungsvorrichtung erreicht, indem der Faltenbalg 5 zusammen mit der Achse 4 für das Pedal 1 in einem gemeinsamen Gehäuse angeordnet und unmittelbar an einer Wand des Kraftfahrzeuges befestigt wird. Das so geschaffene Betätigungsmodul ist gegen Verschmutzung geschützt an der Wand anordbar und senkt gleicheitig Montagekosten bei dem Kraftfahrzeughersteller, weil es lediglich noch mit Stellvorrichtungen elektrisch verbunden werden muß.Finally, a particularly easy-to-install brake actuation device is achieved by arranging the bellows 5 together with the axle 4 for the pedal 1 in a common housing and fastening it directly to a wall of the motor vehicle. The actuation module created in this way can be arranged on the wall in a manner protected against contamination and at the same time reduces assembly costs at the motor vehicle manufacturer because it only has to be electrically connected to actuating devices.
Allen beschriebenen Ausführungsformen der Erfindung ist gemein, daß die Betätigungsvorrichtung selbst bei einem Riß im Bereich des Faltenbalges seine Funktion aufrechterhält, so daß höchste Sicherheitsanforderungen ohne redundant vorzusehende Bauteile erfüllt werden. All of the described embodiments of the invention have in common that the actuating device maintains its function even in the event of a crack in the region of the bellows, so that the highest safety requirements are met without components to be provided redundantly.

Claims

Patentansprüche claims
Bremsbetätigungsvorrichtung, insbesondere für eine Kraftfahrzeug-Bremsanlage vom Typ "Brake-by-wire" mit einem, an einer Achse (4) schwenkbar gelagerten Pedal (1) , das mit elastischen Mitteln entgegen der Betätigungsrichtung vorgespannt ist, und ein Dämpfungsmittel zur definierten Einstellung einer vorgegebenen Kraft-Weg-Charakteristik aufweist, so daß bei Betätigung eine bestimmte Rückwirkungskraft erzeugt wird, dadurch gekennzeichnet, daß als Dämpfungsmittel ein Faltenbalg (5) vorgesehen ist.Brake actuation device, in particular for a motor vehicle brake system of the "brake-by-wire" type, with a pedal (1) which is pivotably mounted on an axis (4) and which is biased with elastic means counter to the actuation direction, and a damping means for the defined adjustment of a has a predetermined force-displacement characteristic, so that a certain reaction force is generated when actuated, characterized in that a bellows (5) is provided as a damping means.
Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Faltenbalg (5) zugleich als elastisches Mittel ausgebildet ist und die erforderliche Reaktionskraft und Rückstellkraft zum Zurückstellen des Betätigungspedals (1) aus einer aus- gelenkten Stellung in eine kraftfreie Ruhelage aufbringt.Device according to claim 1, characterized in that the bellows (5) is at the same time designed as an elastic means and applies the reaction force and restoring force required to reset the actuating pedal (1) from a deflected position to a non-energized rest position.
Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eine progressiv ansteigende Kennlinie der Reaktionskraft in Relation zu dem Pedalweg dadurch erzeugt wird, daß Balgwand- stärke, Balglänge, Balgdurchmesser, das Verhältnis von Balginnendurchmesser zu Balgaußendurchmesser und Balgfaltung einzeln unabhängig voneinander oder in Kombination miteinander über die Länge des Balgkörpers unterschiedlich variiert sind. Apparatus according to claim 2, characterized in that a progressively increasing characteristic of the reaction force in relation to the pedal travel is generated in that bellows wall thickness, bellows length, bellows diameter, the ratio of bellows inner diameter to outer bellows diameter and bellows fold individually independently or in combination with one another via the Length of the bellows body are varied differently.
4. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Faltenbalg (5) für eine Beeinflussung seines Federkennwertes ein eingeschlossenes, kompressibles, Gasvolumen aufweist.4. Device according to one or more of the preceding claims, characterized in that the bellows (5) has an enclosed, compressible, gas volume for influencing its spring characteristic.
5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Faltenbalg (5) fhr eine abgeänderte Dämpfungswirkung aus mehreren, aneinander befestigten Werkstofflagen nach Art eines Mehrschichtwerkstoffes aufgebaut ist.5. The device according to claim 1, characterized in that the bellows (5) fhr a modified damping effect from a plurality of mutually attached material layers is constructed in the manner of a multi-layer material.
6. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Faltenbalg (5) aus Metallwerkstoff besteht.6. The device according to one or more of the preceding claims, characterized in that the bellows (5) consists of metal material.
7. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Faltenbalg (5) zusammen mit der Achse (4) für das Pedal (1) in einem gemeinsamen Gehäuse (8) angeordnet ist.7. The device according to one or more of the preceding claims, characterized in that the bellows (5) together with the axis (4) for the pedal (1) is arranged in a common housing (8).
8. Bremsbetätigungsvorrichtung mit einem Faltenbalg (5) zur Reaktionskrafterzeugung, insbesondere nach Anspruch 1, gekennzeichnet durch die Verwendung bei einem Kraftfahrzeug. 8. Brake actuating device with a bellows (5) for generating reaction force, in particular according to claim 1, characterized by the use in a motor vehicle.
PCT/EP1999/003413 1998-05-19 1999-05-18 Brake actuating device WO1999059853A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998122414 DE19822414A1 (en) 1998-05-19 1998-05-19 Brake actuator system for road vehicles
DE19822414.1 1998-05-19

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FR2847545B1 (en) * 2002-11-25 2005-12-09 Bosch Gmbh Robert CARTRIDGE GENERATING THE REACTION TO THE ACTUATION OF THE BRAKE PEDAL IN A BRAKING SYSTEM
FR2848960B1 (en) * 2002-12-20 2005-11-18 Bosch Gmbh Robert BRAKE PEDAL
US20050223836A1 (en) * 2004-03-30 2005-10-13 Gibson Jeffrey G Drive-by-wire assembly with strain gauge
DE102006042497A1 (en) * 2006-09-07 2008-03-27 Wolfgang Suttner Motor vehicle and accessories for this
DE102007018962A1 (en) * 2007-04-21 2008-10-23 Bayerische Motoren Werke Aktiengesellschaft Stationary clutch pedal for motor vehicle, has over-dead point spring provided for producing characteristic curve adjacent to pressure spring, and speed dependent damper attached between clutch pedal and pedal block

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US5230549A (en) * 1990-11-13 1993-07-27 Honda Giken Kogyo Kabushiki Kaisha Motor vehicle brake system with adaptive braking force control
DE19540705A1 (en) * 1995-11-02 1997-05-07 Continental Ag Brake pedal to control an electric brake system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8809962U1 (de) * 1988-08-04 1988-10-13 Adam Opel AG, 6090 Rüsselsheim Pedal
DE4425477C2 (en) * 1994-07-19 1997-07-10 Continental Ag Brake pedal device for an electric brake system
DE19631944C2 (en) * 1996-08-08 1998-07-02 Uwe Lommack pedal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882442A (en) * 1973-01-12 1975-05-06 Motor Wheel Corp Transducer device for electrically operated brakes
US5230549A (en) * 1990-11-13 1993-07-27 Honda Giken Kogyo Kabushiki Kaisha Motor vehicle brake system with adaptive braking force control
DE19540705A1 (en) * 1995-11-02 1997-05-07 Continental Ag Brake pedal to control an electric brake system

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