WO2007057464A1 - Frein electromecanique pour vehicules comprenant un dispositif compensant l'usure du revetement de friction - Google Patents

Frein electromecanique pour vehicules comprenant un dispositif compensant l'usure du revetement de friction Download PDF

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Publication number
WO2007057464A1
WO2007057464A1 PCT/EP2006/068673 EP2006068673W WO2007057464A1 WO 2007057464 A1 WO2007057464 A1 WO 2007057464A1 EP 2006068673 W EP2006068673 W EP 2006068673W WO 2007057464 A1 WO2007057464 A1 WO 2007057464A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle brake
adjusting device
friction lining
electromechanical vehicle
brake
Prior art date
Application number
PCT/EP2006/068673
Other languages
German (de)
English (en)
Inventor
Christian Baier-Welt
Monika Blendel
Lars Emmel
Stefan Pfeiffer
Hendrik Powileit
Marcel Rigorth
Mathias WÜRGES
Heinrich Zuber
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2007057464A1 publication Critical patent/WO2007057464A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/38—Slack adjusters
    • F16D2065/386—Slack adjusters driven electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2123/00—Multiple operation forces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
    • F16D2125/40—Screw-and-nut
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/66—Wedges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2127/00—Auxiliary mechanisms
    • F16D2127/08—Self-amplifying or de-amplifying mechanisms
    • F16D2127/10—Self-amplifying or de-amplifying mechanisms having wedging elements

Definitions

  • the invention relates to an electromechanical vehicle brake with at least one friction lining, which can be brought into frictional contact with the brake disk by means of an actuating device by a movement directed normal to a brake disk, and an adjusting device for compensating friction lining wear.
  • a vehicle brake is known, for example, from WO 02/095257.
  • the invention has set itself the goal of providing an electromechanical vehicle brake with an improved friction lining wear compensation device.
  • the adjusting device comprises a first element acts on a normal force arising during braking, that further comprises the adjusting device comprises a second element by means of an adjusting transversely is movable to the first element, and that the first element is supported via a first wedge surface associated therewith on a second wedge surface associated with the second element, so that by a displacement of the second element transversely to the first element in the normal direction to the brake disc is moved to compensate for friction lining wear.
  • the adjustment required for a compensation of the friction lining wear thus takes place by means of a wedge pair.
  • the normal force occurring during braking is supported by the one wedge, which runs with its wedge surface on the wedge surface of the second wedge, which can be moved by means of the adjusting device.
  • the first element is supported on a lateral guide and the second element is supported on the first element against its lateral guidance. In this way, the first element is reliably guided and positioned despite only a single lateral guide.
  • the adjusting device of the electromechanical vehicle brake according to the invention can be configured differently, however, in preferred embodiments, the adjusting device has a spindle interacting with a drive, which is preferably self-locking.
  • a spindle allows a sensitive and accurate displacement of the second element. If the spindle is self-locking, occurs on the drive side of the spindle no torque that results from the second element retroactive braking forces and would have to be compensated by a corresponding counter-torque. An adjustment to compensate for friction lining wear anyway only when no braking force is applied, i. in the unloaded state of the vehicle brake.
  • the drive of the adjusting device is preferably arranged stationary in the brake, for example, stationary to a non-moving wedge plate of an electromechanical vehicle brake with a self-reinforcing device having two wedge plates, one of which is movable in a plane parallel to the brake disc and the other not.
  • the drive of the adjusting device is a motor-gear unit.
  • the first wedge surface and / or the second wedge surface are preferably friction-reduced in order to provide as little resistance as possible to a friction lining wear adjustment.
  • the two wedge surfaces also roll on each other, for example via needle bearings.
  • a significant advantage of the electromechanical vehicle brake according to the invention is to be seen in the fact that the adjusting device with its drive is not in the main power flow of the brake, so that only a reduced force acts on the adjusting device. Furthermore, it is readily possible in the vehicle brake according to the invention to integrate a parking brake function. For this purpose, the friction linings must be driven by the adjusting device in contact with the brake disc only when the brake is unoperated. Subsequently, a braking force is applied via the motor-gear unit of the adjusting device, i. E. the friction linings are tensioned against the brake disc with a predetermined force.
  • FIG. 1 Embodiment of an electromechanical vehicle brake in a first position
  • Figure 2 is the view of Figure 1 with the components shown in a second position in which Reibbelagverschl fashion has been compensated.
  • the electromechanical vehicle brake 10 shown in FIG. 1 is one with an integrated self-boosting device, as is apparent, for example, from the already mentioned WO 02/095257, to which reference is hereby expressly made.
  • a self-reinforcing device has two wedge plates 12, 14, between which rollers 16 are arranged for friction reduction and of which for actuating the vehicle brake 10, the one wedge plate 12 is displaced relative to the other wedge plate 14 by means of an actuator, not shown here the distance between the two wedge plates 12, 14 increases.
  • the thus resulting stroke in a direction normal to the main planes of the two wedge plates 12, 14 is used to bring a friction lining 18 fixed to a lining carrier plate 17, for example by gluing, into contact with a brake disk 20.
  • the brake disk 20 rotates, it exerts a driving force on the friction lining 18 via the frictional force generated between the friction lining 18 and the brake disk 20, which returns to the wedge plates 12, 14 a further "spreading", i. causes a larger stroke of the wedge plate assembly and thus a corresponding increase in the force with which the friction lining 18 is pressed against the brake disc 20, without the need for an actuator force would have to be increased.
  • the friction lining 18 Like all friction linings, the friction lining 18 also wears during operation, i. its thickness decreases over time. In order to maintain essentially constant the small distance between the friction lining 18 and the brake disk 20 in the unactuated state of the vehicle brake 10, which is also referred to as a clearance, it is therefore necessary to keep the
  • the adjusting device designated generally by 22 in the figures serves this purpose.
  • the adjusting device 22 comprises a first element 24, which is guided in a lateral guide 25 and which is supported with its one end face on a leg 26 of a not further illustrated here, the brake disc 20 cross-saddle of the vehicle brake 10.
  • the opposite, other end face of the first element 24 is formed as a first wedge surface 28.
  • the adjuster 22 further includes a second member 30 that is reciprocable in a direction transverse to the first member 24 and that has a second wedge surface 32 laterally in contact with the first wedge surface 28 of the first member 24.
  • the two wedge surfaces 28 and 32 are coated friction-reducing in order to slide on each other as possible without resistance.
  • the spindle 38 is self-locking.
  • the adjusting movement of the second element 30 is guided on the non-moving wedge plate 14 of the self-energizing device, the second element 30 being supported by the wedge surface pairing 28, 32 on the first element 24 and its guide 25 ,
  • the spindle 38 is held in a nut 40, which is arranged in an extension 42 of the wedge plate 14.
  • the nut 40 may also be formed in the second element 30 (not shown).
  • the existing of said engine-transmission unit drive 36 is thus fixedly arranged with respect to this wedge plate 14.
  • the function of the vehicle brake 10 and its adjusting device 22 will now be explained in more detail.
  • the friction lining 18 is pressed against the rotating brake disk 20.
  • a supporting force Fi acts on the leg 26 of the brake caliper on the first element 24 of the adjusting device 22.
  • this force Fi is split into a force F2 which acts on the wedge plate 14 in the direction of the force Fi. and a force F 3 , which is directed parallel to the wedge plate 14 and acts on the spindle 38.
  • the force F3 does not result in a moment acting on the drive 36 but is introduced into the wedge plate 14 via the nut 40 received in the extension 42 of the wedge plate 14.
  • Friction lining 18 in the direction of the brake disc 20 the drive 36 is activated such that the spindle 38 rotates in a second element 30 in Figure 1 to the right direction shifting.
  • the thus caused displacement of the second member 30 leads due to the wedge surface pairing 28, 32 to a displacement of the wedge plate 14 in the direction of the brake disc 20.
  • This shift is transmitted via the rollers 16 and the wedge plate 12 on the lining carrier plate 17 and thus on the friction lining 18, which moves in accordance with the extent of displacement of the second member 30 to the brake disc 20.
  • An adjustment takes place only if no braking force is present, ie if no reaction force Fi exists.
  • the drive 36 of the adjusting device 22 thus does not have to apply high torque for adjustment.
  • the spindle / nut arrangement can also be designed so that the spindle is stationary and the nut is rotated (not shown). If a change of the friction lining of the brake 10 is required, the second element 30 can be moved back into a position by activating the drive 36 in a direction opposite to the adjustment, which allows a new, un-worn friction lining 18 to be installed in the brake 10.
  • the adjusting device 22 can also be used to realize a parking brake function.
  • the friction lining is moved by means of the adjusting device 22 into contact with the brake disk 20 and then a desired braking torque is generated by means of the engine transmission unit serving as the drive 36, which presses the friction lining against the brake disk 20
  • a desired braking torque is generated by means of the engine transmission unit serving as the drive 36, which presses the friction lining against the brake disk 20
  • an opening of the parking brake is done by driving the adjusting device 22 in the reverse direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un frein (10) de véhicule électromécanique comprenant au moins un revêtement de friction (18) qui peut être mis en contact frictionnel avec un disque (20) de frein au moyen d'un dispositif d'activation par un mouvement perpendiculaire au disque (20) de frein, et un dispositif de réglage (22) destiné à compenser l'usure du revêtement de friction. Le dispositif de réglage (22) comprend un premier élément (24) soumis à une force normale apparaissant lors du freinage, et un second élément (30) qui peut être déplacé de manière transversale par rapport au premier élément (24), au moyen d'un dispositif d'ajustement (34). Le premier élément (24) est supporté par l'intermédiaire d'une première surface (28) cunéiforme placée sur une seconde surface (32) cunéiforme qui correspond au second élément (30), le second élément (30) étant déplacé vers le disque (20) de frein grâce au déplacement transversal du second élément (30) par rapport au premier élément (24), ceci permettant de compenser l'usure du revêtement de friction.
PCT/EP2006/068673 2005-11-21 2006-11-20 Frein electromecanique pour vehicules comprenant un dispositif compensant l'usure du revetement de friction WO2007057464A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510055441 DE102005055441A1 (de) 2005-11-21 2005-11-21 Elektromechanische Fahrzeugbremse mit Reibbelagverschleißausgleichseinrichtung
DE102005055441.5 2005-11-21

Publications (1)

Publication Number Publication Date
WO2007057464A1 true WO2007057464A1 (fr) 2007-05-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/068673 WO2007057464A1 (fr) 2005-11-21 2006-11-20 Frein electromecanique pour vehicules comprenant un dispositif compensant l'usure du revetement de friction

Country Status (2)

Country Link
DE (1) DE102005055441A1 (fr)
WO (1) WO2007057464A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110953273A (zh) * 2019-12-27 2020-04-03 湖北科技学院 一种制动间隙自动补偿的车辆制动系统
CN113833787A (zh) * 2021-10-19 2021-12-24 山东永生机械有限公司 制动器总成

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100897942B1 (ko) * 2007-09-17 2009-05-18 현대모비스 주식회사 주차 제동력 고정 타입 단일 모터 전자 웨지 브레이크시스템

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002025136A1 (fr) * 2000-09-22 2002-03-28 Robert Bosch Gmbh Dispositif de frein sur roue
WO2002095257A2 (fr) 2001-05-21 2002-11-28 Estop Gmbh Frein electromecanique avec actionnement sans jeu
DE10218825A1 (de) * 2002-04-26 2003-11-13 Estop Gmbh Kraftfahrzeugbremsanlage mit Parkbremsfunktion und elektromechanische Bremse für eine solche Kraftfahrzeugbremsanlage
WO2004003401A1 (fr) * 2002-07-01 2004-01-08 Estop Gmbh Vehicule a voie unique comportant un frein a disque electromecanique
DE10328243A1 (de) * 2003-06-24 2005-01-13 Robert Bosch Gmbh Scheibenbremse mit Selbstverstärkung
WO2005057041A1 (fr) * 2003-12-05 2005-06-23 Robert Bosch Gmbh Frein electromecanique a autorenforcement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002025136A1 (fr) * 2000-09-22 2002-03-28 Robert Bosch Gmbh Dispositif de frein sur roue
WO2002095257A2 (fr) 2001-05-21 2002-11-28 Estop Gmbh Frein electromecanique avec actionnement sans jeu
DE10218825A1 (de) * 2002-04-26 2003-11-13 Estop Gmbh Kraftfahrzeugbremsanlage mit Parkbremsfunktion und elektromechanische Bremse für eine solche Kraftfahrzeugbremsanlage
WO2004003401A1 (fr) * 2002-07-01 2004-01-08 Estop Gmbh Vehicule a voie unique comportant un frein a disque electromecanique
DE10328243A1 (de) * 2003-06-24 2005-01-13 Robert Bosch Gmbh Scheibenbremse mit Selbstverstärkung
WO2005057041A1 (fr) * 2003-12-05 2005-06-23 Robert Bosch Gmbh Frein electromecanique a autorenforcement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110953273A (zh) * 2019-12-27 2020-04-03 湖北科技学院 一种制动间隙自动补偿的车辆制动系统
CN110953273B (zh) * 2019-12-27 2024-05-14 湖北科技学院 一种制动间隙自动补偿的车辆制动系统
CN113833787A (zh) * 2021-10-19 2021-12-24 山东永生机械有限公司 制动器总成
CN113833787B (zh) * 2021-10-19 2024-01-30 山东永生机械有限公司 制动器总成

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