EP1877886B1 - Anordnung zum betätigen einer kupplung eines fahrzeuges - Google Patents

Anordnung zum betätigen einer kupplung eines fahrzeuges Download PDF

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Publication number
EP1877886B1
EP1877886B1 EP06722752A EP06722752A EP1877886B1 EP 1877886 B1 EP1877886 B1 EP 1877886B1 EP 06722752 A EP06722752 A EP 06722752A EP 06722752 A EP06722752 A EP 06722752A EP 1877886 B1 EP1877886 B1 EP 1877886B1
Authority
EP
European Patent Office
Prior art keywords
leaf spring
pedal
clutch
arrangement according
contour
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06722752A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1877886A1 (de
Inventor
Peter Greb
Lászlo MAN
Oswald Friedmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP1877886A1 publication Critical patent/EP1877886A1/de
Application granted granted Critical
Publication of EP1877886B1 publication Critical patent/EP1877886B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

Definitions

  • the present invention relates to an arrangement for actuating a clutch of a vehicle, in which a movement of a clutch pedal by means of a kinematics transferable to a disengaging device, wherein the clutch pedal via the kinematics with at least one energy storage means by a movable at a predetermined contour area contact element for adjusting the Pedal force characteristic is coupled.
  • a release device for a hydraulically actuated clutch of a motor vehicle known.
  • the release device has a connected to a hydraulic system energy storage.
  • the energy storage is connected to a pedal via a kinematics, with which an adaptation of the pedal forces can be achieved on the pedal travel.
  • the articulation of the energy storage on the pedal, the pedal force along the second half of the pedal travel can be noticeably reduced in order to overcome the acting in the clutch of the motor vehicle maximum spring force towards the end of the pedal travel easier.
  • one end of the energy accumulator is connected to a lever on which a rolling curve is provided, on which a roller can run, which is arranged on a boom of the clutch pedal. After overcoming a dead center, the roller runs along the rolling curve and experiences an assisting force through the energy store, so that the pedal force to be applied is reduced.
  • the pedal mounted about a pivot point has at its end a correspondingly formed rolling surface, which is in operative connection with an energy store in the form of a spring with a curved or bulged surface.
  • an energy store in the form of a spring with a curved or bulged surface.
  • an accelerator pedal device which is simply constructed of a base plate member and an accelerator pedal, wherein the accelerator pedal is connected in a fulcrum to the base plate member.
  • a pedal return device is arranged such that both components are tweezers facing each other.
  • the arranged between the two components pedal return device in the form of a spring element has due to its bending and its type of attachment over movement characteristics that are not linear, so that a comfortable hysteresis-shaped movement characteristics of the accelerator pedal is achieved.
  • a pedal arm which can be pivoted about a pivot axis in a holding part of a pedal can be actuated by means of foot force.
  • a return spring element in the form of a leg spring ensures a return pivoting into a basic position.
  • the pedal arm is connected to two friction members designed as cams.
  • the friction bodies each have a surface portion which abuts against a leg of a return spring element designed as a leg spring.
  • the leg spring encloses an axis which serves to fix the leg spring.
  • the present invention has for its object to provide an arrangement for actuating a clutch of a vehicle of the type mentioned, which is as simple as possible and allows optimal pedal force adjustment.
  • an inventive arrangement for actuating a clutch of a vehicle in which a movement of a clutch pedal via a kinematics transferable to a disengaging device, wherein the clutch pedal via the kinematics with at least one energy storage by means of a movable contact element at a predetermined contour area for adjusting the pedal force characteristic is coupled, being provided as an energy storage, a leaf spring and provided on a cam contour region is firmly connected to the clutch pedal, wherein the leaf spring is approximately trapezoidal with an approximately V-shaped cutout.
  • a cost-optimized pedal force characteristic adaptation for clutches can be realized in the simplest way solely by the choice of a predetermined shape of the spring element, without sacrificing, for example, the functionality of the arrangement. In this way, not only a cost optimization, but also an increase in comfort in the operation of the clutch of a vehicle can be achieved with the inventive arrangement.
  • a contour leaf spring or the like at the predetermined contour region as a contact element a roller or the like can be moved along to realize a predetermined pedal force curve on the clutch pedal for an operator.
  • a leaf spring is particularly suitable for use because of its external shape, but other energy storage devices with similar properties can be used.
  • the end facing away from the contact element is fixed or fixed, for example, on the housing or the like.
  • the predetermined by the shape of the leaf spring contour region is usually characterized by a changing contour angle course. From this particular contour angle course ultimately results in each case adapted to the system used pedal force.
  • a compressive force is generated by the spring element and transmitted according to the contour angle to the contact element or on the roller according to a next development by the characteristic contour angle course.
  • the generated and transmitted compressive force is divided into a radial force component and a tangential force component as a function of the respective contour angle.
  • These force components are transmitted to the clutch pedal by means of kinematics.
  • the kinematics may preferably comprise a rigidly connected to the clutch pedal lever element, wherein the lever element at the end facing away from the clutch pedal, the contact element or the roller.
  • the compensation force is converted via the kinematics in a compensation torque, since the clutch pedal and the lifting element are preferably pivotally mounted about a common pivot point. Due to the inventive design of the arrangement, the radial force component is supported at the pivot point, wherein the tangential force component causes a compensation torque on the clutch pedal via the lifting element.
  • the object underlying the invention is achieved by an arrangement for actuating a clutch of a vehicle, wherein a movement of a clutch pedal via a kinematics transferable to a disengaging device, wherein the clutch pedal via the kinematics with at least one energy storage means by a at a predetermined contour area along movable contact element for adjusting the pedal force characteristic is coupled.
  • the invention may be provided as energy storage, a leaf spring or the like, to which the contact element is attached, wherein the contour provided on a cam contour area is fixedly connected to the clutch pedal.
  • an optimal adaptation of the required pedal force to the clutch characteristic can be made possible.
  • This arrangement is characterized in particular by the fact that it is particularly cost-effective.
  • the contour region is virtually rigidly connected to the clutch pedal, wherein the contact element is coupled to the leaf spring such that the contact element along the predetermined contour region can be moved.
  • a next development of the present invention provides that one end of the leaf spring is clamped or fastened on the vehicle side, wherein the remote free end of the leaf spring is fastened to the contact element.
  • the vehicle-mounted connection of the leaf spring is provided on the vehicle frame or on the pedal block in order to be able to safely absorb torques, longitudinal and normal forces which occur when the clutch pedal is actuated.
  • a roller or the like can preferably be used as the contact element.
  • the roller can roll when pressing the clutch pedal in the simplest way along the predetermined contour area. Characterized in that the roller is acted upon by the spring force of the leaf spring, a compressive force can be applied to the contour region.
  • the contour region is formed as a cam rigidly connected to the clutch pedal.
  • the cam has a changing contour angle or contour angle profile. This is necessary to allow a corresponding adjustment of the pedal force characteristic.
  • the cam and the clutch pedal can be pivoted about a common pivot point when operating the clutch of the clutch pedal.
  • the compressive force can be divided into a radial force component and a tangential force component as a function of the respective contour angle of the cam through the changing contour angle curve, so as to realize a predetermined pedal force curve.
  • the radial force component is advantageously supported at the common pivot point of the clutch pedal and the cam plate, the tangential force component being transmitted via the kinematics to the clutch pedal pivot point and consequently causing a compensation torque on the clutch pedal to a desired one Adaptation of the pedal force characteristic to realize.
  • the contour angle profile of the cam disc can be calculated and configured from an actual characteristic curve of the clutch, a desired characteristic and geometric data of the leaf spring and the clutch pedal such that the resulting summation torque of the clutch and the compensation arrangement generates a desired desired force characteristic at the base point of the clutch pedal.
  • the leaf spring is trapezoidal in shape with a V-shaped cutout.
  • the trapezoidal configuration has been distinguished as a special voltage-optimized, resulting in optimum material utilization. As a result, this type of execution is particularly space-and cost-optimized.
  • the end portions of the leaf spring are each formed as axle mounts for the roller.
  • additional components for roller bearing can be saved in an advantageous manner.
  • the end portions of the trapezoidal leaf spring can realize lateral guiding of the roller since the end portions can have correspondingly shaped angled portions.
  • the bends may have suitable recesses or the like as axle mounts in which the axis of the roller is stored.
  • the end portions are bent by more than 90 ° relative to the leaf spring surface.
  • the preferred angular arrangement an optimal fixation of the axis of the roller by the bent end portions of the leaf spring and by the utilization of the resulting spring action can be realized.
  • the leaf spring may be integrally formed.
  • no layered construction is required for the leaf spring. This results in a low number of parts and a minimal hysteresis.
  • the targeted use can be realized in addition to the cost optimization and functional reliability with minimum space requirement with desired characteristic adjustment.
  • the compensation characteristic curve can be formed as a difference from the characteristic curve without compensation arrangement and the desired characteristic curve. Taking into account the given spring and pedal geometries, the curve contour necessary for achieving the desired characteristic curve can then be calculated.
  • FIG. 1 is a schematic partial view of an example of an arrangement for actuating a not further shown clutch of a vehicle shown.
  • This arrangement therefore comprises a clutch pedal 1, the movements of which are transmitted by means of a kinematics to a disengagement device of the clutch not shown.
  • the kinematics comprises in the illustrated embodiment, the clutch pedal 1 and a lever member 2, which are rigidly pivotable about a common pivot point 3 with each other.
  • the pedal angle ⁇ changes.
  • a roller 4 with a roller bearing 11 At the end remote from the clutch pedal 1 end of the lever member 2 is provided as a contact element, a roller 4 with a roller bearing 11.
  • the roller 4 is connected to a predetermined contour region 5 of a trained as a leaf spring 8 energy storage for adjusting the pedal force characteristic in plant.
  • the roller 4 can be moved along the contour area 5, so that by the changing contour angle, which with ⁇ in FIG. 1 is referred to be transferred to the kinematics or to the clutch pedal 1, wherein the pressure force generated by the leaf spring 8 are divided into a radial force component 6 and a tangential force component 7 as a function of the respective contour angle ⁇ .
  • the radial force component 6 can be supported at the pivot point 3. However, the tangential force component 7 acts on the clutch pedal 1 via the lever member 2 as a compensation torque.
  • the contour region 5 is predetermined by the shape of the leaf spring 8.
  • the roller facing away from the end of the contour leaf spring 8 is fixed, for example, clamped to the vehicle frame.
  • a pressure force is generated by the leaf spring 8, which is transmitted via the respective changing contour angle ⁇ on the roller 4 and thus on the lever member 2 and the clutch pedal 1.
  • the contour of the leaf spring 8 causes the above-mentioned division into the individual force components.
  • the Kontuminkelverlauf the leaf spring 8 is chosen so that the resulting sum moment generated on the clutch pedal 1 through the clutch and the compensation system, the desired desired force characteristic at the base.
  • the leaf spring 8 designed as a simple over-center spring.
  • this arrangement can be combined with a servo-assisted system.
  • the leaf spring material allows high surface pressures that make curing of the contour region 5 superfluous.
  • the arrangement according to the invention can be used in manual clutches in vehicles with high engine torques. However, other applications are conceivable.
  • FIG. 2 shows the non-inventive arrangement described as a three-dimensional representation. It can be seen from this illustration that the contour leaf spring 8 is held in one clamping 9 on one side. The clamping 9 is fixed to a pedal block 10 which is fixedly mounted on the vehicle.
  • Fig. 3 is a schematic principle view of an embodiment of the inventive arrangement shown.
  • This embodiment comprises as kinematics a leaf spring 12, which is clamped at one end on the vehicle side.
  • the free end of the leaf spring 12 is connected to a trained as a contact element roller 4 'via a corresponding roller bearing 11'.
  • a cam disc 13 rigidly connected to the clutch pedal 1' is provided in this embodiment variant.
  • the cam disk 13 has a changing contour angle ihn along its contour area 5 '.
  • the cam plate 13 is pivotally mounted about a pivot point 3 'common to the clutch pedal 1'.
  • Fig. 4 shows a three-dimensional view of the leaf spring 12 according to Fig. 3 , From this view, it is clear that the leaf spring 12 is formed approximately trapezoidal as a so-called trapezoidal spring.
  • the leaf spring 12 has an approximately V-shaped cutout 14.
  • the leaf spring 12 has a clamping area 19 with which it can be fastened on the vehicle side.
  • By approximately V-shaped cutout 14 on the leaf spring 12 results at the free end of the leaf spring 12 end portions 15, 15 '.
  • the end portions 15, 15 ' serve to support the axle 16 of the roller 4'.
  • the end portions 15, 15' each bent bends 17, 17 'or bends, which is an angle ⁇ of 80 ° to 100 °, preferably less than or equal to 90 ° between the bottom of the underside Leaf spring 12 and the surface of the end portions 17, 17 'have.
  • the roller 4 'mounted in this manner at the free end of the leaf spring 12 is pressed against the contour region of the cam disc 13 due to the spring force of the leaf spring 12, thereby transmitting a compressive force to the cam disc 13.
  • the contour or the contour angle ⁇ of the cam 13 effects a division of the pressure force into a radial force component 6 'and a tangential force component 7'.
  • the radial component 6 ' is transmitted to the common pivot 3' of the cam 13 and the clutch pedal 1 ', wherein the tangential force component 7' via the cam 13 a compensation torque to the clutch pedal 1 'transmits.
  • the compensation torque can be used in the inventive arrangement for pedal force characteristic optimization.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Operated Clutches (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
EP06722752A 2005-04-28 2006-04-05 Anordnung zum betätigen einer kupplung eines fahrzeuges Not-in-force EP1877886B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005019787 2005-04-28
PCT/DE2006/000602 WO2006114075A1 (de) 2005-04-28 2006-04-05 Anordnung zum betätigen einer kupplung eines fahrzeuges

Publications (2)

Publication Number Publication Date
EP1877886A1 EP1877886A1 (de) 2008-01-16
EP1877886B1 true EP1877886B1 (de) 2011-09-07

Family

ID=36575989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06722752A Not-in-force EP1877886B1 (de) 2005-04-28 2006-04-05 Anordnung zum betätigen einer kupplung eines fahrzeuges

Country Status (6)

Country Link
EP (1) EP1877886B1 (pt)
CN (1) CN101167033B (pt)
AT (1) ATE523833T1 (pt)
BR (1) BRPI0607678A8 (pt)
DE (1) DE112006000878A5 (pt)
WO (1) WO2006114075A1 (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924645A3 (fr) * 2007-12-10 2009-06-12 Renault Sas Dispositif d'assistance a l'actionnement d'une pedale d'embrayage.
DE102008061569A1 (de) 2007-12-19 2009-06-25 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Kupplungsbetätigungssystem
US8522640B2 (en) * 2008-10-30 2013-09-03 GM Global Technology Operations LLC Lightweight cantilever control system
FR2967224A1 (fr) * 2010-11-08 2012-05-11 Peugeot Citroen Automobiles Sa Pedalier pour la commande d'embrayage d'un vehicule
FR2967270A1 (fr) * 2010-11-08 2012-05-11 Peugeot Citroen Automobiles Sa Dispositif pour l'actionnement d'un levier pivotant autour d'un axe fixe
ES2415004B1 (es) * 2012-01-18 2014-09-02 Batz, S.Coop. Dispositivo de asistencia para el accionamiento de un pedal de un vehículo motor y pedal que comprende el dispositivo de asistencia
DE102014210983A1 (de) * 2014-06-10 2015-12-17 Robert Bosch Gmbh Fahrpedaleinheit
EP3015945B1 (en) * 2014-10-29 2019-06-26 Robert Bosch GmbH Abstract positioning device for a remote control of a heavy duty vehicle or an agricultural vehicle
SE539321C2 (en) * 2015-12-16 2017-06-27 Cj Automotive Ab Pedal feel simulating system for a pedal device
DE102016101686A1 (de) * 2016-01-31 2017-08-03 Boge Elastmetall Gmbh Pedaleinrichtung
DE102017207417B4 (de) * 2016-06-03 2022-08-11 Ford Global Technologies, Llc Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeugs und elektrisch betätigtes Kupplungssystem
DE102019101646A1 (de) * 2019-01-23 2020-07-23 HELLA GmbH & Co. KGaA Pedalemulator für ein Fahrzeug
DE102019104404A1 (de) * 2019-02-21 2020-08-27 HELLA GmbH & Co. KGaA Verbindungselement für ein Fahrzeugpedal und Fahrzeugpedal

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
CH335458A (de) * 1954-06-26 1958-12-31 Auto Union Gmbh Vorrichtung zum willkürlichen Verstellen der Kraftstoffzufuhr eines Verbrennungsmotors, insbesondere für Kraftfahrzeuge
JPS5911926A (ja) * 1982-07-09 1984-01-21 Fuji Kiko Co Ltd クラツチペダル踏力軽減装置
GB9022123D0 (en) * 1990-10-11 1990-11-21 Jaguar Cars Clutch operating mechanism for a motor vehicle
FR2771523B1 (fr) * 1997-11-27 1999-12-31 Peugeot Dispositif d'assistance pour l'actionnement d'un levier pivotant sur un axe fixe
DE19755980A1 (de) * 1997-12-17 1999-06-24 Mannesmann Vdo Ag Pedal
DE10033297B4 (de) * 2000-05-10 2006-06-14 Ab Elektronik Gmbh Fahrpedalmodul
DE10104665A1 (de) 2001-02-02 2002-08-22 Zf Sachs Ag Ausrückvorrichtung

Also Published As

Publication number Publication date
EP1877886A1 (de) 2008-01-16
CN101167033A (zh) 2008-04-23
ATE523833T1 (de) 2011-09-15
CN101167033B (zh) 2011-10-26
WO2006114075A1 (de) 2006-11-02
BRPI0607678A8 (pt) 2016-12-06
BRPI0607678A2 (pt) 2009-09-22
DE112006000878A5 (de) 2008-01-10

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