WO2008017549A1 - Unité hydraulique d'un système de freinage pour véhicule et élément d'étanchéité - Google Patents

Unité hydraulique d'un système de freinage pour véhicule et élément d'étanchéité Download PDF

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Publication number
WO2008017549A1
WO2008017549A1 PCT/EP2007/056875 EP2007056875W WO2008017549A1 WO 2008017549 A1 WO2008017549 A1 WO 2008017549A1 EP 2007056875 W EP2007056875 W EP 2007056875W WO 2008017549 A1 WO2008017549 A1 WO 2008017549A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
valve components
hydraulic
sealing element
hydraulic unit
Prior art date
Application number
PCT/EP2007/056875
Other languages
German (de)
English (en)
Inventor
Florian Rispler
Andreas Weh
Juergen Tandler
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2008017549A1 publication Critical patent/WO2008017549A1/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
    • 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
    • B60T8/36—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 including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0828—Modular units characterised by sealing means of the modular units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
    • F15B13/0835—Cartridge type valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details

Definitions

  • the invention relates to a hydraulic unit of a vehicle brake system comprising a first housing carrying hydraulic valve components and a second housing carrying electrical valve components, between which a sealing element sealing the first housing to the second housing is arranged, and wherein the hydraulic and electrical valve components extend along an axis.
  • Hydraulic units of the above type are used in vehicle brake systems, which are equipped for example with an anti-lock braking system or an electronic stability program.
  • the hydraulic units are used to control the brake pressure to brakes of the associated vehicle brake system and are provided with electromagnetic valves, which include both hydraulic and electrical valve components.
  • a housing carrying the electrical valve components generally also serves to accommodate further electrical and electronic components
  • the first housing generally also includes hydraulic channels and pump elements and together with these forms a so-called hydraulic block.
  • This hydraulic block usually has tapped holes into which screws of conventional type are screwed for fastening said controller.
  • the electrical valve components which are generally designed in the form of coils, are usually conductively coupled in the associated second housing to a printed circuit board and / or a stamped grid. It is an object of the present invention to improve a hydraulic unit of the type mentioned above in that it requires less space overall, is less expensive to produce and in particular less material is required for the individual components.
  • a hydraulic unit of a vehicle brake system is provided with a first housing carrying a hydraulic valve component and a second housing carrying an electrical valve component. Between the two housings, a sealing element is arranged, which seals the housing against each other.
  • the hydraulic and electrical valve components each extend along an axis.
  • the sealing element is further arranged at least in sections in the direction of this axis under the electrical valve components.
  • Hydraulic units of the prior art generally have hydraulic and electrical valve components which adjoin one another directly.
  • that seal is still provided which seals the first housing with respect to the second housing.
  • the hydraulic unit according to the invention differs from the prior art in that there is arranged between the first and the second housing arranged sealing element in the axial direction next to the electrical valve components. The sealing element is thus located radially outside of adjacent electrical valve components and usually also radially outside of the associated hydraulic valve components.
  • the solution according to the invention has the advantage that the associated hydraulic unit can have a smaller spatial extent transversely to the or the said axis of the valve components in its extension, since no additional space for a sealing element surrounding the outside of the valve components is required.
  • the sealing element according to the invention viewed in cross-section is preferably made smaller in area than conventional sealing elements of hydraulic units. For the sealing element itself therefore less material is required. In addition, however, less material is also required for the inventively provided first housing and the associated second housing. Because the inventive arrangement is made more compact overall, the tolerance situation, especially in the axial direction, is improved. To improve the sealing effect of the sealing element according to the invention this is further preferably designed in the radial direction to the axis of said valve components with at least two sealing lips, which are in particular formed radially immediately following one another.
  • the sealing element according to the invention is preferably also formed with a flowable, in particular post-curing sealant.
  • a sealant can be applied in the flowable or liquid state to one of said housing and the housing can then be joined together below.
  • the flowable sealing element adapts to the surface situation on the two housings, sealing them off optimally and, if necessary, hardening to a desired extent so that a tight connection is created overall over the service life of the hydraulic unit. If necessary, this connection can also be made glued by a suitably chosen sealing means.
  • the sealing element according to the invention is preferably designed with a sealing film extending substantially in the axial direction.
  • This sealing film can be compressed in the axial direction during assembly of the two housings such that it deforms softly in the radial direction and thereby assumes that elastic deformation state which is required for permanent sealing between the two housings.
  • the second housing is preferably fastened to the first housing by means of at least one press pin.
  • Such attachment can be made considerably cheaper than conventional screw connections.
  • a stamped grid is preferably formed in the second housing such that the punched grid, the electrical valve components are urged against the first housing.
  • the second housing further preferably has a wall facing the first housing, in which at least one recess is formed, through which hydraulic valve components protrude into the second housing and in particular into associated electrical valve components.
  • the associated electrical valve components can be inserted from the side facing away from the first housing, even after an assembly of the second housing on the first housing. Subsequently, said punched grid can be placed on the electrical valve components and coupled with these electrically conductive.
  • Fig. 3 is a longitudinal section of a first embodiment of an inventive
  • Fig. 4 shows the detail IV in Fig. 3,
  • Fig. 5 is a longitudinal section of a second embodiment of a erfmdungshielen
  • Fig. 6 shows the detail VI in Fig. 5 and
  • Fig. 7 shows the detail of FIG. 6 in a third embodiment of an inventive hydraulic unit.
  • a hydraulic unit 10 of the prior art which comprises as essential components a first housing 12 of a so-called hydraulic block and a second housing 14 of a so-called control unit.
  • the first housing 12 is made of aluminum and has various holes and channels, in which in particular hydraulic valve components 16 of solenoid valves 18 are partially inserted and caulked.
  • hydraulic valve components 16 of solenoid valves 18 are partially inserted and caulked.
  • electrical valve components 20 of the respective solenoid valve 18 are pushed in the form of coils.
  • the electrical valve components 20 are conductively connected to a stamped grid 22, which is located under and in an intermediate floor 24 of the second housing 14. At the top of this intermediate floor 24 are further electrical and electronic components 26 of the associated control unit.
  • the second housing 14 is fastened by means of a plurality of screws 28 to the first housing 12, wherein these screws 28 each extend through a through hole 30 in the second housing 14 and are aligned transversely to a parting plane 32 which extends between the first housing 12 and the second housing 14 extends. Transverse to this parting plane 32 and the electrical and hydraulic valve components 20 and 16 extend along an axis 34th
  • a sealing element 36 is provided, which is arranged radially outside of the electrical valve components 20 and radially adjacent to these at the lower end of a side wall 38 of the second housing 14.
  • the sealing element 36 is designed as an O-ring, which is arranged on the one hand in a recess 40 in the side wall 38 and on the other hand in a recess 42 on the outer edge of the first housing 12.
  • FIG. 3 shows a hydraulic unit 10 according to the invention, which likewise has a first housing 12 and a second housing 14 with hydraulic valve components 16 and electrical valve components 20 arranged therein. These valve components 16 and 20 also extend along an axis 34. At one
  • Dividing plane 32 between the first housing 12 and the second housing 14 is also a sealing element 36 is provided.
  • this sealing element 36 according to the embodiment of Fig. 3 is not located radially outside of associated electrical valve components 20 but in the axial direction below these electrical valve components 20.
  • the sealing element 36 is still radially outside of the associated hydraulic
  • valve components 16 the sealing element 36 according to FIGS. 3 and 4 designed with a total of two sealing lips 44, which are each arranged in a recess 42 in the first housing 12 radially adjacent to each other.
  • the sealing lips 44 are connected to each other on their side facing the second housing 14 and supported by a bottom 46 which formed on the first housing 12 facing the end portion of the second housing 14. With this bottom 46, the sealing element 36 is urged against the first housing 12.
  • the bottom 46 has a plurality of openings 48 through which each one of the hydraulic valve components 16 extend therethrough.
  • a sleeve 50 is formed in the second housing 14, in which a screw 52 protrudes.
  • This screw 52 passes through the first housing 12 in a through hole 54 and is screwed to the sleeve 50 such that it biases the second housing 14 against the first housing 12.
  • a stamped grid 22 At the side remote from the first housing 12 side of the second housing 14 is located above the electrical valve components 20, a stamped grid 22, with which the electrical valve components 20 are electrically conductively coupled.
  • the punched grid 22 extends with lugs 56 on the electrical valve components 20 and is so connected to the side walls 38 and the sleeve 50 of the second housing 14 that it the electrical valve components 20 in the axial direction against the first housing 12 and the recorded therein hydraulic valve components 16 urges.
  • Figs. 5 and 6 is another embodiment of an inventive
  • Hydraulic unit 10 is shown, which is formed in terms of the spatial arrangement of a sealing element 36, such as the sealing element 36 according to FIGS. 3 and 4.
  • the sealing element 36 is formed according to FIGS. 5 and 6 with a flowable sealant, which has been arranged before joining the first housing 12 and the second housing 14 to one of these housing, was forced apart by the joining in the radial direction and subsequently such Cures that it provides a permanently elastic seal between the first housing 12 and the second housing 14.
  • a screw passing through the first housing 12 is not provided, but a pressing pin 58 which is arranged on the bottom 46 of the second housing 14 and is pressed into an associated bore 60 in the first housing 12.
  • FIG. 7 an embodiment of a hydraulic unit 10 according to the invention is illustrated, in which the sealing element 36 in turn partially below the electrical
  • Valve components 20 of the solenoid valves 18 is arranged.
  • the sealing element 36 according to FIG. 7 is designed as a sealing film initially extending substantially in the axial direction, which is inserted into a single recess 42 formed in the second housing 12.
  • the sealing film arranged in this way is pressed together on the side of the housing 14 by its bottom 46 and has thus been forced radially in particular in the direction of the axis 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Transportation (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

L'invention concerne une unité hydraulique (10) d'un système de freinage pour véhicule, comportant un premier boîtier (12) portant des éléments de soupapes hydrauliques (16) et un deuxième boîtier (14) portant des éléments de soupapes électriques (20). Entre lesdits éléments de soupapes est disposé un élément d'étanchéité, rendant étanche le premier boîtier (12) par rapport au deuxième boîtier (14), les éléments de soupapes hydrauliques et électriques (16, 20) s'étendant le long d'un axe (34). L'invention est caractérisée en ce que l'élément d'étanchéité (36) est, au moins partiellement, disposé dans le sens axial (34) sous les éléments de soupapes électriques (20).
PCT/EP2007/056875 2006-08-11 2007-07-06 Unité hydraulique d'un système de freinage pour véhicule et élément d'étanchéité WO2008017549A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006037695.1 2006-08-11
DE200610037695 DE102006037695A1 (de) 2006-08-11 2006-08-11 Hydroaggreagat einer Fahrzeugbremsanlage mit einem Dichtelement

Publications (1)

Publication Number Publication Date
WO2008017549A1 true WO2008017549A1 (fr) 2008-02-14

Family

ID=38442059

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/056875 WO2008017549A1 (fr) 2006-08-11 2007-07-06 Unité hydraulique d'un système de freinage pour véhicule et élément d'étanchéité

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Country Link
DE (1) DE102006037695A1 (fr)
WO (1) WO2008017549A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013075865A1 (fr) * 2011-11-23 2013-05-30 Robert Bosch Gmbh Unité hydraulique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102029520B1 (ko) * 2012-02-29 2019-10-07 콘티넨탈 테베스 아게 운트 코. 오하게 차량 브레이크 시스템들용 전자유압식 제어 장치
US9925970B2 (en) 2012-02-29 2018-03-27 Continental Teves Ag & Co. Ohg Electrohydraulic pressure control device for vehicle brake systems
JP6305769B2 (ja) * 2014-01-15 2018-04-04 株式会社ジェイテクト 弁装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919760A1 (de) * 1989-06-16 1990-12-20 Teves Gmbh Alfred Ventilblock, insbesondere fuer anfahr- und bremsschlupfgeregelte hydraulische bremsanlagen
DE19508235A1 (de) * 1995-03-08 1996-09-12 Teves Gmbh Alfred Ventilblockaggregat, insbesondere für Bremsdruckregelvorrichtungen
DE19519888A1 (de) * 1995-05-31 1996-12-05 Bosch Gmbh Robert Hydraulikaggregat mit umlaufender Dichtung
WO1997010979A1 (fr) * 1995-09-22 1997-03-27 Robert Bosch Gmbh Ensemble hydraulique
WO1998047748A1 (fr) * 1997-04-18 1998-10-29 Continental Teves Ag & Co. Ohg Groupe actionne par moteur
DE19916985A1 (de) * 1999-04-15 2000-10-19 Bosch Gmbh Robert Aggregat mit einer Dichtungsanordnung
DE10109473A1 (de) * 2000-09-14 2002-03-28 Continental Teves Ag & Co Ohg Drucksteuergerät
DE10354309A1 (de) * 2003-03-21 2004-10-14 Continental Teves Ag & Co. Ohg Drucksteuergerät

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919760A1 (de) * 1989-06-16 1990-12-20 Teves Gmbh Alfred Ventilblock, insbesondere fuer anfahr- und bremsschlupfgeregelte hydraulische bremsanlagen
DE19508235A1 (de) * 1995-03-08 1996-09-12 Teves Gmbh Alfred Ventilblockaggregat, insbesondere für Bremsdruckregelvorrichtungen
DE19519888A1 (de) * 1995-05-31 1996-12-05 Bosch Gmbh Robert Hydraulikaggregat mit umlaufender Dichtung
WO1997010979A1 (fr) * 1995-09-22 1997-03-27 Robert Bosch Gmbh Ensemble hydraulique
WO1998047748A1 (fr) * 1997-04-18 1998-10-29 Continental Teves Ag & Co. Ohg Groupe actionne par moteur
DE19916985A1 (de) * 1999-04-15 2000-10-19 Bosch Gmbh Robert Aggregat mit einer Dichtungsanordnung
DE10109473A1 (de) * 2000-09-14 2002-03-28 Continental Teves Ag & Co Ohg Drucksteuergerät
DE10354309A1 (de) * 2003-03-21 2004-10-14 Continental Teves Ag & Co. Ohg Drucksteuergerät

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013075865A1 (fr) * 2011-11-23 2013-05-30 Robert Bosch Gmbh Unité hydraulique
CN103946080A (zh) * 2011-11-23 2014-07-23 罗伯特·博世有限公司 液压设备
CN103946080B (zh) * 2011-11-23 2016-08-24 罗伯特·博世有限公司 液压设备

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Publication number Publication date
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