EP2034384A2 - Agencement de pédale destiné à l'actionnement d'un embrayage - Google Patents

Agencement de pédale destiné à l'actionnement d'un embrayage Download PDF

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Publication number
EP2034384A2
EP2034384A2 EP08015172A EP08015172A EP2034384A2 EP 2034384 A2 EP2034384 A2 EP 2034384A2 EP 08015172 A EP08015172 A EP 08015172A EP 08015172 A EP08015172 A EP 08015172A EP 2034384 A2 EP2034384 A2 EP 2034384A2
Authority
EP
European Patent Office
Prior art keywords
pedal
lever
pedal lever
actuating means
pedal assembly
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.)
Withdrawn
Application number
EP08015172A
Other languages
German (de)
English (en)
Other versions
EP2034384A3 (fr
Inventor
Steve Lauderbaugh
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 Buehl Verwaltungs GmbH
LuK Lamellen und Kupplungsbau GmbH
Original Assignee
LuK Lamellen und Kupplungsbau Beteiligungs KG
LuK Lamellen und Kupplungsbau 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 LuK Lamellen und Kupplungsbau Beteiligungs KG, LuK Lamellen und Kupplungsbau GmbH filed Critical LuK Lamellen und Kupplungsbau Beteiligungs KG
Publication of EP2034384A2 publication Critical patent/EP2034384A2/fr
Publication of EP2034384A3 publication Critical patent/EP2034384A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G05G7/04—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 altering the ratio of motion or force between controlling member and controlled member as a function of the position of the controlling member
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20528—Foot operated

Definitions

  • the present invention relates to a pedal assembly, in particular a clutch pedal assembly for actuating a clutch, with a variable power transmission ratio, wherein the pedal assembly comprises: a pedal lever which is rotatably mounted on a joint, and connected to the pedal lever by a sliding bearing of the pedal lever actuating means which is intended to be in operative connection with the clutch, wherein the sliding bearing is arranged on the pedal lever, that a radial movement of the actuating means is made possible with respect to the joint.
  • a pedal assembly for actuating a clutch with a variable power transmission ratio
  • the pedal assembly comprises: a pedal lever which is rotatably mounted on a joint, and connected to the pedal lever by a sliding bearing of the pedal lever actuating means, which is intended to be in operative connection with the clutch, wherein the sliding bearing is arranged on the pedal lever such that a radial movement of the actuating means with respect to the joint is made possible, characterized in that the actuating means is guided and supported exclusively in the plain bearing of the pedal lever and in at least one link.
  • the invention has the advantage that the transmission ratio between the pedal lever and the clutch can be influenced by changing the position of the actuating means in the sliding bearing.
  • the joint is preferably stationary, i. fixed to the housing with respect to a pedal assembly receiving motor vehicle arranged.
  • the joint preferably has a rotational degree of freedom, as is known from the prior art used in conventional motor vehicles clutch pedals. Due to the guidance of the actuating means in the slide it is achieved that the gear ratio achieved with the pedal lever is dependent on the angular position of the pedal lever, so that influence is exerted on the force to be applied to the pedal lever for actuating the clutch. This is preferably achieved by influencing a guidance of the actuating means or by prescribing a specific guide for the actuating means.
  • the scenery is designed and arranged so that the position of the actuating means in the sliding bearing of the pedal lever depends on the angular position of the pedal lever and the formation of the scenery.
  • This offers the advantage that can be influenced by the selection of the shape of the slide on the position of the actuating means in the sliding bearing of the pedal lever in dependence on the angular position of the pedal lever. In this way, a force-displacement diagram can be influenced, which is decisive for the actuation of the pedal lever and thus the clutch by the pedal lever.
  • the at least one link and the hinge are arranged immovable relative to each other. This is achieved particularly simply by the fact that the slide and the joint are both fixed to the housing mounted on a vehicle which is provided for receiving the pedal assembly.
  • the actuating means is mounted in the sliding bearing of the pedal lever and guided in the at least one link pin.
  • the storage of the actuating means in the sliding bearing of the pedal lever is preferably a rotatable mounting.
  • the features mentioned offer the advantage of a simple mechanical construction for implementing a travel-dependent transmission ratio for clutch actuation.
  • the pen is preferably also rotatably mounted in the scenery.
  • the pin is preferably straight, resulting in a simple structure. For the storage of the pin in the backdrop can generally methods known from the prior art or bearings are used.
  • the pedal assembly preferably has a further, the same setting for the first backdrop backdrop, the backdrop and the other backdrop are each arranged on opposite sides of the pedal lever. It means on opposite sides of the pedal lever that the scenes are arranged laterally of the pedal lever with respect to the direction of movement of the pedal lever. It is particularly advantageous that the scenes are arranged substantially parallel to each other or to the direction of movement of the pedal lever. This in turn offers the advantage of a particularly simple mechanical construction.
  • the joint is arranged on a carrier element, and the scenes are formed in the carrier element.
  • the support member may be a part of the vehicle body or a pedal receiving support member which is mounted on a vehicle body.
  • the support member is a substantially U-shaped plate in which the joint is received and in which the scenes are formed in the side walls of the U-shaped support member.
  • a push rod is attached to the actuator for actuating the coupling, wherein the attachment is preferably a hinged attachment.
  • the actuating element as a pin results in this way a simple mechanical construction.
  • the backdrop has a waveform.
  • waveform means that the slide is formed so that the radial distance of the actuating means in the slide bearing to the joint on actuation of the pedal lever in one direction is first increased or decreased, and then reduced in further operation of the pedal lever in the same direction again or is enlarged. That is, the position of the actuating means moves in one direction in two different directions along the pedal lever during operation of the pedal lever. It is particularly advantageous that the position initially moves radially onto the joint during actuation of the pedal lever by a user and then moves radially away from the joint upon further actuation of the pedal lever in the same direction. This ensures that the at Vehicle clutches typical pedal load drop is reduced. Under wave form is also preferably understood that the shape of the backdrop has at least two opposite curvatures.
  • the gate is designed so that a dependent on the angular position of the pedal lever, is applied to the pedal lever for actuating the clutch applied force on the angular position of the pedal lever. It means gleichierit that especially at angular positions of the pedal lever, which is applied for the operation of a particularly high force, the force is reduced by the pedal assembly according to the invention. In this way, maximum forces are reduced in the force-displacement diagram of the pedal assembly upon actuation of a clutch and also reduces the pedal load drop to a maximum force.
  • the actuating means comprises a first bolt and a second bolt, which are rigidly interconnected.
  • the push rod is preferably connected to the bolt located radially closer to the hinge axis.
  • the first bolt and the second bolt are preferably mounted so as to be displaceable together in a cutout substantially radially relative to the hinge axis.
  • the push rod is thus mounted radially further inward in the direction of the axis of rotation, so that although it completely performs the predetermined by the backdrop movement in the radial direction, but doing tangentially by the smaller distance from the axis of rotation performs a lesser motion. In this way, a greater variability of the reduction of the travel ratio pedal travel to way of the push rod can be realized.
  • Fig. 1 schematically shows a first embodiment of the invention, with a pedal assembly 1, which comprises a pedal lever 2, which is articulated in a U-shaped support member 3.
  • the articulated mounting via a mounted on two side cheeks of the support member 3 hinge axis 4, to which the pedal lever 2 is attached.
  • the hinge axis 4 thus forms a joint for the pedal lever 2.
  • the pedal lever 2 has a plain bearing 5, which is designed as a slot.
  • the sliding bearing 5 is aligned in the radial direction with respect to the hinge axis 4.
  • a designed as a pin actuating means 6 is rotatably mounted in the sliding bearing 5, a designed as a pin actuating means 6 is rotatably mounted. Furthermore, the actuating means 6 is guided in two scenes 7, which are formed in the side cheeks of the support member 3. The bearing of the actuating means 6 in the sliding bearing 5 and in the scenes 7 is performed by bearings 8. On the actuating means 6, a push rod 9 is fixed, which (not shown) can actuate a clutch.
  • the operation of the pedal assembly 1 according to the present invention will be explained below, assuming that an operator depresses a pedal 10 disposed on the pedal lever 2 with the foot to operate the clutch.
  • the actuating means 6 moves in a first region 11 of the scenes 7, wherein in this area the actuating means of the hinge axis 4 is relatively far away. Subsequently, the actuating means is displaced in the scenes 7 in a second region 12, wherein it is caused that the actuating means 6 moves closer to the hinge axis 4. If the pedal 10 is operated even further, so that the pedal lever 2 is further rotated in the clockwise direction in the image, the actuating means 6 passes into a third region 13, in which the distance of the actuating means 6 increases again to the hinge axis 4.
  • This pedal assembly 1 causes a comparison with conventional pedal assemblies with a fixed lever arm a modified force-displacement diagram during depression of the pedal 10th
  • Fig. 2 Assuming that a known and customary from the prior art clutch is actuated by the pedal assembly 1, are in the Fig. 2 shown two force-displacement diagrams, being in the Fig. 2 the solid line represents the force-displacement diagram, which is achieved with the pedal assembly 1 according to the invention and the dashed line in the Fig. 2 represents a force-displacement diagram, which is achieved with a conventional pedal assembly.
  • Fig. 2 is on the reference numerals of Fig. 1 Reference is made, wherein like parts or portions are identified by like reference numerals.
  • a movement amount of the pedal lever 2 said amount of movement is denoted by x.
  • the amount of movement x may represent a curved path of the pedal 10 or an angle of the pedal lever 2.
  • the Fig. 2 is entered the force F, which is required to depress the pedal 10 by the distance x.
  • the amount of movement x and the force F are also schematically in the Fig. 1 shown.
  • the depression of the pedal 10 again passes through the first region 11, wherein in this region in the pedal assembly 1 according to the invention, the force required for depression (solid line) is greater than the force required in a conventional pedal assembly (dashed line).
  • the maximum force required to push the pedal lever 2 is attenuated in the pedal assembly 1 according to the invention, and in the third area 13 the force required to press the pedal lever 2 is increased again compared to a conventional pedal arrangement.
  • the result is that the pedal load drop conventionally occurring between regions 12 and 13 is significantly reduced. Overall, the force-displacement diagram is made uniform.
  • Fig. 3 shows an exploded view of a second embodiment of the invention.
  • the actuating means 6 is made in two parts and comprises a first pin 14 and a second bolt 15.
  • the first bolt 14 cooperates with the link 7, the second bolt 15 serves to connect the push rod 9.
  • the second bolt 15 includes a screw head 16 and a thread 20, on which a lock nut 21 is turned on.
  • the bolts 14 and 16 are connected to connecting plates 17 and 18, which are arranged on both sides of the pedal lever 2.
  • the push rod 9 is connected via a fork 17 a with the second bolt 15.
  • the fork 17a includes two holes 18a, through which the second pin 15 is passed.
  • the first bolt 14 is provided on both sides with bearing rings 19. These may be, for example, plastic rings or ball bearings or the like and increase the surface and thus reduce the surface pressure and friction on the surface of the scenes 7.
  • the first pin 14 and the second pin 15 are guided in an elongated cutout 22 and can be common in the longitudinal direction be moved. This is indicated by a double arrow 23.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Mechanical Control Devices (AREA)
  • Mechanical Operated Clutches (AREA)
EP08015172A 2007-09-04 2008-08-28 Agencement de pédale destiné à l'actionnement d'un embrayage Withdrawn EP2034384A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96734507P 2007-09-04 2007-09-04

Publications (2)

Publication Number Publication Date
EP2034384A2 true EP2034384A2 (fr) 2009-03-11
EP2034384A3 EP2034384A3 (fr) 2009-10-14

Family

ID=40104689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08015172A Withdrawn EP2034384A3 (fr) 2007-09-04 2008-08-28 Agencement de pédale destiné à l'actionnement d'un embrayage

Country Status (3)

Country Link
US (1) US20090071285A1 (fr)
EP (1) EP2034384A3 (fr)
DE (1) DE102008044824A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2450276A1 (fr) * 2010-11-04 2012-05-09 Eurocopter Deutschland GmbH Transmission mécanique de mouvement de translation
DE102013216483A1 (de) * 2013-08-20 2015-02-26 Volkswagen Aktiengesellschaft Fußpedalanordnung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9040130B2 (en) 2008-12-10 2015-05-26 Balsam Hill Llc Collapsible artificial tree
DE102010022917B4 (de) 2009-06-25 2019-08-08 Schaeffler Technologies AG & Co. KG Einrichtung zur Betätigung einer Kupplung
US20150107401A1 (en) * 2013-10-23 2015-04-23 The U.S.A. As Represented By The Administrator Of The National Aeronautics And Space Administration Pedal module for a vehicle having a control-by-wire system
US10030808B2 (en) 2014-01-27 2018-07-24 UCP International Co. Ltd. Invertible structure with a track
US9581287B2 (en) 2014-01-27 2017-02-28 UCP International Co. Ltd. Invertible structure with a track
DE102014202235A1 (de) * 2014-02-07 2015-08-13 Volkswagen Aktiengesellschaft Fußhebelwerk und Montageverfahren dazu
DE102016112188A1 (de) * 2016-07-04 2018-01-04 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Pedaleinheit für ein Fahrzeug, insbesondere Nutzfahrzeug
US10173650B1 (en) * 2017-11-29 2019-01-08 Dura Operating, Llc Pedal with snap-fit pivot bushing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2166130A1 (de) * 1971-06-05 1973-03-15 Hans O Schroeter Mit veraenderlicher uebersetzung wirkender spannhebel insbesondere fuer bremsgestaenge
US6151985A (en) * 1999-04-01 2000-11-28 Daimlerchrysler Corporation Adjustable pedal apparatus
US20010047695A1 (en) * 1995-01-27 2001-12-06 James Oliff Brake operating device
FR2821177A1 (fr) * 2001-02-19 2002-08-23 Peugeot Citroen Automobiles Sa Pedale d'embrayage destinee a equiper un vehicule
EP1552995A2 (fr) * 2003-11-26 2005-07-13 Ventra Group Inc. Dispositif de pedale de frein a taux variable
DE102005003886A1 (de) * 2005-01-27 2006-08-03 Volkswagen Ag Fußhebelwerk mit verstellbarer Übersetzung

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US1464905A (en) * 1922-05-25 1923-08-14 Emil S Grafenstatt Clutch pedal
US2844228A (en) * 1957-03-14 1958-07-22 Wagner Electric Corp Brake pedal ratio changer
US4615235A (en) * 1985-01-14 1986-10-07 General Motors Corporation Variable ratio brake pedal mechanism
US4875385A (en) * 1986-08-18 1989-10-24 Sitrin Gabriel M Control pedal apparatus for a motor vehicle
US5078024A (en) * 1986-08-18 1992-01-07 Comfort Pedals Inc. Control pedal apparatus for a motor vehicle
US5460061A (en) * 1993-09-17 1995-10-24 Comfort Pedals, Inc. Adjustable control pedal apparatus
JP3964618B2 (ja) * 2000-12-22 2007-08-22 豊田鉄工株式会社 前後調節可能な車両用ペダル装置
JP2004517768A (ja) * 2001-01-10 2004-06-17 ケイエスアール インターナショナル インコーポレイテッド 可変比率を有するブレーキペダル組立体
US20060053948A1 (en) * 2003-05-28 2006-03-16 Akhil Mahendra Variable ratio brake pedal linkage mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2166130A1 (de) * 1971-06-05 1973-03-15 Hans O Schroeter Mit veraenderlicher uebersetzung wirkender spannhebel insbesondere fuer bremsgestaenge
US20010047695A1 (en) * 1995-01-27 2001-12-06 James Oliff Brake operating device
US6151985A (en) * 1999-04-01 2000-11-28 Daimlerchrysler Corporation Adjustable pedal apparatus
FR2821177A1 (fr) * 2001-02-19 2002-08-23 Peugeot Citroen Automobiles Sa Pedale d'embrayage destinee a equiper un vehicule
EP1552995A2 (fr) * 2003-11-26 2005-07-13 Ventra Group Inc. Dispositif de pedale de frein a taux variable
DE102005003886A1 (de) * 2005-01-27 2006-08-03 Volkswagen Ag Fußhebelwerk mit verstellbarer Übersetzung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2450276A1 (fr) * 2010-11-04 2012-05-09 Eurocopter Deutschland GmbH Transmission mécanique de mouvement de translation
DE102013216483A1 (de) * 2013-08-20 2015-02-26 Volkswagen Aktiengesellschaft Fußpedalanordnung

Also Published As

Publication number Publication date
DE102008044824A1 (de) 2009-03-05
EP2034384A3 (fr) 2009-10-14
US20090071285A1 (en) 2009-03-19

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