WO2011113489A1 - Dispositif d'actionnement des freins destiné à actionner une installation de freinage d'un véhicule automobile. - Google Patents

Dispositif d'actionnement des freins destiné à actionner une installation de freinage d'un véhicule automobile. Download PDF

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Publication number
WO2011113489A1
WO2011113489A1 PCT/EP2010/053513 EP2010053513W WO2011113489A1 WO 2011113489 A1 WO2011113489 A1 WO 2011113489A1 EP 2010053513 W EP2010053513 W EP 2010053513W WO 2011113489 A1 WO2011113489 A1 WO 2011113489A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
piston rod
actuating
wire
bolt
Prior art date
Application number
PCT/EP2010/053513
Other languages
German (de)
English (en)
Inventor
Thomas Sellinger
Peter Drott
Horst Krämer
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 WO2011113489A1 publication Critical patent/WO2011113489A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/18—Connection thereof to initiating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
    • B60T8/4077—Systems in which the booster is used as an auxiliary pressure source

Definitions

  • Brake actuation unit for actuating a
  • the invention relates to a brake actuation unit for actuating a motor vehicle brake system of the "brake-by-wire" type, with a brake pedal as well as by means of an electronic control unit
  • the coupling of the brake pedal by means provided with longitudinal guide openings piston rod head to an input member of the brake booster is designed such that a limited relative movement of the brake pedal relative to the input member is possible, whereby in particular in the mode "brake-by-wire” decoupling the force-transmitting connection between the brake pedal and the input member is ensured, wherein for relative movement of the brake pedal relative to the input member between a, fixedly connected to the brake pedal bolt and a piston rod head stop an axial gap is provided, and wherein
  • Piston rod head for guiding the bolt has two mutually parallel legs, in which the longitudinal guide openings are formed.
  • Such a brake actuation unit is known from DE 10 2007 044 423 AI and finds widespread application in modern motor vehicles with hybrid drive.
  • Piston rod end is designed as a brake pedal encompassing, U-shaped bent part.
  • the piston rod head has to guide a bolt attached to the pedal on both sides on two mutually parallel legs, in which longitudinal guide openings are formed as openings produced by punching. Between the
  • Bolt and a piston rod end stop is the axial gap, which at Rekuperieren, i. during braking by means of a generator, ensures that a predetermined distance to the brake booster is maintained (decoupling).
  • Rekuperieren i. during braking by means of a generator
  • Brake booster made by attaching the bolt to a piston head stop.
  • the piston rod head has means for closing the gap between the bolt and the piston rod head stop outside the "brake-by-wire" mode, so that brake pressure can be established without delay and without loss of travel outside the "brake-by-wire” operating mode , Another advantage is that only a change in the piston rod head is required to provide the means for closing the gap.
  • the means comprise at least one arranged on the piston rod actuator solenoid, which holds a closing element in the operating mode "brake-by-wire” in an open position and outside the operating mode "brake-by-wire” a closed position closing element
  • Locking lever may be provided, which closes the gap between the bolt and the piston rod head stop outside the operating mode "brake-by-wire”.
  • the locking lever by means of a
  • an actuating magnet and a locking lever are preferably arranged on the two outer sides of the piston rod head.
  • Another advantageous embodiment of the invention is achieved in that there is provided as a closing element between the legs of the piston rod head rotatably arranged bolt, which in the operating mode "brake-by-wire" by the actuating magnet in the
  • Opening position is held and the outside of the
  • the actuating magnet preferably has a
  • Actuating piston with a claw element which holds the bolt in the operating mode "brake-by-wire” in the open position by means of a pin arranged on the bolt and allows the rotation of the bolt in the direction of the brake pedal outside the operating mode "brake-by-wire” ,
  • the actuating magnet according to a
  • advantageous embodiment also have an actuating piston with a rack, which holds the latch in the operating mode "brake-by-wire” in the open position by means of the latch associated with the gear and the outside of the "brake-by-wire” rotation of the bolt in Direction brake pedal allows.
  • Fig. 1 is a known brake actuation unit of
  • the known operating unit shown in Fig. 1 consists of a brake booster 1, preferably a vacuum brake booster, the one
  • Brake booster 1 by the driver serves a
  • a brake deceleration request or the actuating travel of the brake pedal 4 is provided by means of at least one brake pedal 4, which cooperates with the brake pedal 4, especially in the "brake-by-wire" mode, only indicated pedal travel simulator 5
  • Sensor device 6 detected, the signals of which are supplied to an electronic control unit, not shown.
  • the output signals of the electronic control unit is u. a. an associated with the brake booster 1
  • Electromagnet actuated, which allows a driver-independent operation of a pneumatic control valve which controls an air supply to the brake booster 1.
  • control valve by the driver has a piston rod head 8, in which longitudinal guide openings 9 are formed.
  • the longitudinal guide openings 9 receive a power transmission part connected to the brake pedal 4, which is designed as a bolt 10. It is the
  • a displacement sensor 11 is used to detect the path of the reinforcing force of the brake booster 1 applying movable wall or the path of a
  • Output force to a first piston, not shown, of the master cylinder 2 transmits.
  • the pedal travel simulator 5 by which, as already mentioned, in the "brake-by-wire" mode, a restoring force acting on the brake pedal 4 can be simulated independently of an actuation of the brake booster 1 is such
  • the piston rod head 8 is designed as a brake pedal 4 encompassing, U-shaped bent part and has to guide the bolt 10 on both sides two mutually parallel legs 13,14, in which the longitudinal guide openings 9 are formed, for example, as punched openings.
  • the piston rod end 8 means 16 for closing the gap a between the bolt 10 and the piston rod head stop 15 outside the
  • the operating mode "brake-by-wire” in this case comprises at least one actuating magnet 21, 22, 27, 28, 39 which is arranged on the piston rod end 8 and which is located in the
  • Figs. 2a to 2e and 3a to 3c are each one
  • Both embodiments have in common that arranged on the outer sides of the piston rod head 8, two actuating magnets 21,22 and 27,28 and as closing element two on the outer sides of the
  • Piston rod head 8 hinged locking lever 17,18 and 25,26 are provided, which close the gap a between the bolt 10 and the piston rod head stop 15 outside the operating mode "brake-by-wire".
  • FIGS. 2a to 2c show the piston rod head assembly of the first embodiment in an open position. As can be seen, two locking levers 17,18 each on the outside of the legs 13,14
  • a rotary joint 19,20 hinged and connected by means of a rotary joint 19,20 with an actuating magnet 21,22.
  • the rotary joint 19,20 in turn is articulated via an actuating piston 23,24 of the actuating magnet 21,22.
  • Actuating piston 23,24 and the pivot joints 19,20 held in the open position, so that a relative movement between the bolt 10 and the piston rod head 8 is possible.
  • 3 a to 3 c show a piston rod head assembly of a second embodiment of a brake actuation unit in the open and closed state.
  • Actuating pin 29,30 which holds the locking lever 25,26 in the opening or the closed position.
  • the locking lever 25,26 molded projections 31,32 with recesses 33,34,35,36, in which the
  • Actuating pin 29,30 can engage.
  • Locking levers 25,26 are pressed by torsion springs 37,38 down so that the actuating pin 29,30 can engage in the recesses 34,36 of the projections 31,32 and the locking lever 25,26 in the in Fig. 3c
  • FIGS. 4a to 4e and FIGS. 5a to 5d which each have a piston rod head assembly of a
  • inventive brake operating unit in open and closed state show.
  • latch 42 As a closing element between the legs 13,14 of the piston rod head 8 rotatably arranged latch 42 is provided, which is held in the operating mode "brake-by-wire" by an actuating magnet 39 in the open position and the outside the operating mode "brake-by-wire” by means of
  • FIGS. 4a to 4e As can be seen in FIGS. 4a to 4e, FIG.
  • Actuating magnet 39 a mounted in a guide actuating piston 40 with a jaw member 41. This holds by means of a bar 42 arranged on a pin
  • Input member is given, as can be seen in particular from Fig. 4e.
  • Fig. 5 a to d is a Kolbstangenkopfbauen a fourth embodiment of an inventive
  • associated gear 45 is rotatable, so that in the
  • FIGS. 5c and 5d show the closed position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

L'invention concerne un dispositif d'actionnement des freins destiné à actionner une installation de freinage, du type système de freinage à commande électronique, d'un véhicule automobile, comportant un servofrein (1), pouvant être commandé à la convenance du conducteur tant par une pédale de frein (4) que par une unité de commande électronique, le couplage de la pédale de frein (4) à un organe d'entrée (7) du servofrein (1), par l'intermédiaire d'une tête de tige de piston (8) munie d'ouvertures de guidage longitudinales (9), étant réalisé de telle sorte qu'un mouvement relatif limité de la pédale de frein (4) par rapport à l'organe d'entrée (7) est possible, moyennant quoi, en particulier dans le mode de freinage par commande électronique, un découplage de la liaison de transmission entre la pédale de frein (4) et l'organe d'entrée (7) est garanti. Pour le mouvement relatif de la pédale de frein (4) par rapport à l'organe d'entrée (7), une fente axiale a est prévue entre un boulon (10), relié de manière fixe à la pédale de frein (4), et une butée (15) de la tête de tige de piston, la tête de tige de piston (8) comportant, pour le guidage du boulon (10), deux branches (13, 14) parallèles entre elles, dans lesquelles sont réalisées les ouvertures de guidage longitudinales (9). Afin qu'en cas de panne électrique, la pression de freinage puisse être appliquée sans délai et sans course de déperdition, la tête de tige de piston (8) comporte selon l'invention des moyens (16) pour fermer la fente a entre le boulon (10) et la butée (15) de la tête de tige de piston, en dehors du mode de freinage par commande électronique.
PCT/EP2010/053513 2010-03-15 2010-03-18 Dispositif d'actionnement des freins destiné à actionner une installation de freinage d'un véhicule automobile. WO2011113489A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010002851.7 2010-03-15
DE102010002851A DE102010002851A1 (de) 2010-03-15 2010-03-15 Bremsbetätigungseinheit zur Betätigung einer Kraftfahrzeugbremsanlage

Publications (1)

Publication Number Publication Date
WO2011113489A1 true WO2011113489A1 (fr) 2011-09-22

Family

ID=43216505

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/053513 WO2011113489A1 (fr) 2010-03-15 2010-03-18 Dispositif d'actionnement des freins destiné à actionner une installation de freinage d'un véhicule automobile.

Country Status (2)

Country Link
DE (1) DE102010002851A1 (fr)
WO (1) WO2011113489A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110371093B (zh) * 2019-07-26 2021-08-20 上海交通大学 一种简易式汽车踏板自动执行器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2268300A1 (fr) * 1974-04-17 1975-11-14 Start Spa
KR20040079701A (ko) * 2003-03-10 2004-09-16 현대모비스 주식회사 브레이크 페달 에뮬레이터
WO2008095546A1 (fr) * 2007-02-03 2008-08-14 Continental Teves Ag & Co. Ohg Servofrein
DE102007044423A1 (de) 2007-07-04 2009-01-15 Continental Teves Ag & Co. Ohg Bremskraftverstärker
WO2009016040A2 (fr) * 2007-08-02 2009-02-05 Continental Teves Ag & Co. Ohg Système de freinage de type 'brake-by-wire'

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9721723D0 (en) * 1997-10-15 1997-12-10 Rover Group Vehicle brake systems
DE102004011622A1 (de) * 2003-08-06 2005-03-31 Continental Teves Ag & Co. Ohg Bremsbetätigungseinheit zur Betätigung einer Kraftfahrzeugbremsanlage
JP4980576B2 (ja) * 2005-03-31 2012-07-18 日立オートモティブシステムズ株式会社 ペダル装置及びそれを備えた自動車

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2268300A1 (fr) * 1974-04-17 1975-11-14 Start Spa
KR20040079701A (ko) * 2003-03-10 2004-09-16 현대모비스 주식회사 브레이크 페달 에뮬레이터
WO2008095546A1 (fr) * 2007-02-03 2008-08-14 Continental Teves Ag & Co. Ohg Servofrein
DE102007044423A1 (de) 2007-07-04 2009-01-15 Continental Teves Ag & Co. Ohg Bremskraftverstärker
WO2009016040A2 (fr) * 2007-08-02 2009-02-05 Continental Teves Ag & Co. Ohg Système de freinage de type 'brake-by-wire'

Also Published As

Publication number Publication date
DE102010002851A1 (de) 2011-12-15

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