WO1998033687A1 - Vanne de regulation a plusieurs voies - Google Patents

Vanne de regulation a plusieurs voies Download PDF

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Publication number
WO1998033687A1
WO1998033687A1 PCT/EP1998/000394 EP9800394W WO9833687A1 WO 1998033687 A1 WO1998033687 A1 WO 1998033687A1 EP 9800394 W EP9800394 W EP 9800394W WO 9833687 A1 WO9833687 A1 WO 9833687A1
Authority
WO
WIPO (PCT)
Prior art keywords
slide
plunger
control valve
way control
housing body
Prior art date
Application number
PCT/EP1998/000394
Other languages
German (de)
English (en)
Inventor
Johann Jungbecker
Manfred Rüffer
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
Priority to EP98904139A priority Critical patent/EP0956224A1/fr
Priority to JP53251398A priority patent/JP2001509752A/ja
Publication of WO1998033687A1 publication Critical patent/WO1998033687A1/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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/061—Sliding valves
    • F16K31/0613—Sliding valves with cylindrical slides
    • 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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/025—Electrically controlled valves
    • B60T15/028—Electrically controlled valves in hydraulic systems
    • 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
    • B60T8/3655—Continuously controlled electromagnetic valves
    • B60T8/366—Valve details
    • B60T8/3665—Sliding valves
    • 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
    • B60T8/3655—Continuously controlled electromagnetic valves
    • B60T8/366—Valve details
    • B60T8/367—Seat valves, e.g. poppet valves
    • 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
    • B60T8/50—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 having means for controlling the rate at which pressure is reapplied to or released from the brake
    • B60T8/5018—Pressure reapplication using restrictions
    • B60T8/5025—Pressure reapplication using restrictions in hydraulic brake systems
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/0624—Lift valves

Definitions

  • the invention relates to an electromagnetically controllable multi-way control valve for slip-controlled hydraulic motor vehicle brake systems, for fluidly connecting at least one wheel brake to a high-pressure source or to a low-pressure accumulator, comprising
  • a slide guided in a sleeve-shaped housing body which has a first control edge and, together with a corresponding control edge on the housing body, a first variable throttle cross section in the hydraulic
  • a valve provided between the wheel brake and the low-pressure accumulator, which in normal braking operation is closed and opened to release pressure in the wheel brake
  • a plunger extending from an armature of an electromagnetic actuating device and extending through the slide.
  • Such multi-way control valves are known. It proves to be problematic in terms of production technology to properly implement the distance between the control edge of the slide and the control edge of the housing body in the first end position. Since then, this has been achieved by precise manufacture of the parts, so that in the event that a change in the control edge spacing is desired, the slide or the formation of the opening of the sleeve-shaped housing body must be changed.
  • the present invention is therefore based on the object of improving a multi-way control valve of the type described at the outset in such a way that the control edge spacing can be set in a simple manner.
  • the plunger is also brought into its first end position, the first end position of the slide, which is prestressed against the stop element, is set via the position of the stop element.
  • the slide is biased in the direction of the at least one spacer element, so that the end position of the slide can be adjusted via the thickness of one or more spacer elements.
  • the stop abuts against the spacer element on the side facing away from the slide side, can be either formed by the housing body itself or by a longitudinal opening in the housing body closing the lid, a valve or an additional guide element for the 'Stossel.
  • the stop against which the spacer element is supported is formed by a radial projection of the tappet, the tappet being pretensioned in such a way that it presses the valve between the wheel brake and the low-pressure accumulator in normal braking operation keeps closed. In normal braking operation, the ram is therefore in its first end position.
  • the valve between the wheel brake and the low-pressure accumulator is preferably a seat valve, and the preloaded plunger is pressed as a valve body against a sealing seat in normal braking operation, as a result of which its first end position is predetermined as a reference point by the position of the sealing seat.
  • the position of the radial projection of the ram is also predetermined, so that only a spacer element with a suitable thickness needs to be selected and used to set the control edge distance.
  • the spacer element or the stop element, together with the plunger acts as an actuator for the slide when the slide is moved from its first end position.
  • the stop element sits in a press fit on the plunger and is displaceable with respect to the plunger by an axial force that is greater than the forces occurring during operation of the valve, this advantageously creates the possibility of moving the Stop element on the tappet to adjust or change the control edge distance.
  • the invention further relates to a method for adjusting the control edge distance with the features of claim 10. Accordingly, the slide is inserted into the housing body when the multi-way valve is installed and the distance of the control edges from one another is determined in its end position. The slide is then removed from the housing body and at least one spacer element of the required thickness is inserted between an axial stop and the slide, so that the slide has the desired control edge spacing when it is reinserted into the housing body.
  • a stop element which is seated on the tappet and is displaceable by an axial force which is greater than the forces which occur during operation of the multi-way valve is displaced such that the desired control edge distance is set. The stop element is then held frictionally on the ram.
  • the axial stop element is moved relative to the ram by moving the slide. According to a preferred embodiment, this can also be achieved by moving the anchor.
  • FIG. 1 shows a longitudinal section of a first embodiment of the multi-way control valve according to the invention with a stop element held on the tappet;
  • FIG. 1 shows a multi-way control valve with a sleeve-shaped housing body 2, in the continuous longitudinal opening 4 of which a slide 8 which can be displaced in the longitudinal direction 6 is provided.
  • Radial openings 10, 12 are formed in the housing body 2, spaced apart from one another in the longitudinal direction 6, which open into the longitudinal opening 4 and form a pressure medium connection for a high-pressure source (not shown) (at 10) or a wheel brake (not shown) (at 12).
  • the slide 8 is designed as a hollow slide and has a longitudinal opening 14 through which a plunger 16 of an electromagnetic actuating device, indicated overall by the reference numeral 18, extends.
  • the electromagnetic actuating device 18 comprises a coil 20 which is arranged around a flange-shaped section 22 of the sleeve-shaped housing body 2 with a reduced outside diameter, as well as an armature 24 which can be displaced in the longitudinal direction 6 inside the flange-shaped housing section 22 and a magnetic core which closes the flange-shaped section 22 to the outside 26.
  • the armature 24 is connected to the plunger 16 so as to be fixed against displacement and is arranged between the magnetic core 26 and the slide 8.
  • a spring 28 is provided between the magnetic core 26 and armature 24 Armature 24 and plunger 16 biased towards the slider 8.
  • a valve 30 is provided which, during normal braking operation, closes the opening 4 against a pressure medium connection 32 for a low-pressure accumulator, not shown.
  • the valve 30 is designed as a seat valve and comprises a circular-shaped sealing seat 34 with a central passage opening 36.
  • the electromagnetic actuating device 18 is in the de-energized state and, as a result of the prestressing by the spring 28, armature 24 and plunger 16 become brought their end position shown in Figure 1.
  • the plunger 16 In this end position, the plunger 16 is supported with its free end 38 facing away from the electromagnetic actuating device 18 against the sealing seat 34 of the valve 30 and closes the opening 36 ' .
  • the pressure medium connection 10 and 12 of the high pressure source and wheel brake are in pressure medium connection via a reduced-diameter outer peripheral section 39 of the slide 8.
  • the slide 8 has a first control edge 40 in the region of the radial opening 12, which delimits the outer peripheral portion 39.
  • the control edge 40 approaches a corresponding first control edge 42, which delimits the radial opening 12, so that a variable throttle cross section 44 is formed, which is maximum in the normal braking mode shown.
  • An axial stop element 46 is seated on the plunger 16 in a press fit, the position of which relative to the plunger 16 determines the first end position of the slide 8.
  • a compression spring 50 is provided, which surrounds a concentric section 52 of the slide 8 projecting towards the armature 24. Under the pretension of the spring 50, the slide 8 is always forced into contact with the axial stop element 46.
  • the slide 8 has on its end face 54 facing away from the armature 24 an enlarged opening area 56 which merges into the longitudinal opening 14 via a step 58.
  • the axial stop element 46 is sleeve-shaped and dimensioned such that it can be inserted into the enlarged area 56 of the slide 8.
  • the stop element 46 has at its end facing away from the anchor a radial projection 60, in particular in the form of an annular collar extending in sections, against which the end face 54 of the slide 8 bears. Due to the large-area contact of the stop element 46 on the tappet outer surface, the stop element 46 is immovable with respect to the tappet 16 in the case of the forces occurring during the operation of the multi-way control valve.
  • the electromagnetic actuating device 18 is energized so that the armature 24 together with the plunger 16 are moved in the direction of the magnetic core 26 .
  • the free end 38 of the plunger 16 lifts off from the sealing seat 34, so that the seat valve 30 opens.
  • the control edge 40 of the slide 8 passes over the corresponding control edge 42 of the housing body 2, so that the pressure medium connection between the high pressure source and the wheel brake is blocked.
  • a control edge 62 formed by the end face 54 of the slide 8 subsequently passes over a corresponding control edge 64 of the radial opening 12, as a result of which a variable flow cross section between the wheel brake and the opening 32 to the low-pressure accumulator is opened so that the pressure prevailing in the wheel brake can be reduced.
  • the current through the coil 20 of the electromagnetic actuating device 18 is reduced until the control edge 62 and the corresponding control edge 64 again in the opposite direction runs over, the control edges 40 and 42 still remain closed.
  • valve 30 remains open until the control process is complete.
  • the pressure in the wheel brake can also be increased again by slightly reducing the current through the coil 20 again.
  • an axial force is exerted on the armature 24 using a suitable pressing device, which forces the armature moved in the longitudinal direction 6 in the direction of the slide 8.
  • the end face 48 of the armature 24 strikes against the end face of the flange-shaped section 52 of the slide 8 and moves the slide 8 in the direction of the valve 30.
  • This force is transmitted via the end face 54 of the slide 8 to the radial projection 60 and the stop element 46 move this too.
  • the force is removed from the armature 24, whereby it is moved again to the left under the action of the spring 50.
  • the armature 24 is displaced with respect to the push rod 16 in such a way that the end 66 of the armature 24 on the magnetic core side assumes a predetermined position with respect to a housing edge or marking 68. In this position, the armature 24 is welded to the push rod 16 in the region of the end face 66, glued or otherwise secured in position. Since the magnetic core 26 bears against a step 70 of the housing body 2, a precise stroke setting is achieved.
  • FIG. 2 differs from that above Embodiment described in that a radial projection 72 in the form of a ring collar 74 in sections is provided on the plunger 16.
  • This collar 74 forms an axial stop 76 against which a spacer element 78 in the form of a circular disk surrounding the plunger 16 is placed.
  • the spacer element 78 is provided between the axial stop 76 and an end face 80 of the slide 8 ′ facing the valve. Since the position of the annular collar 54 relative to the housing body 2 is predetermined by the first end position of the plunger 16, the control edge distance 40-42 is set via the thickness of the spacer element 78.
  • the plunger 16 with the collar 74, but without the spacer element 78 and with the slide 8 ′, spring 50 and the slide-on armature 24, are introduced into the housing body 2.
  • the end face 80 of the slide 8 'thus bears against the annular collar 54, and the control edge section 40-42 is therefore too large.
  • the control edge distance is measured.
  • the plunger 16, slide 8 'and armature 24 are then removed from the housing body 2, and a spacer element 78 of suitable thickness is pushed onto the plunger 16 in accordance with the difference between the measured and the control edge spacing to be set. Thereafter, the slide 8 'is pushed on and the assembly in again introduced the housing body 2.
  • the armature 24 is now pushed onto the plunger 16 in its end position in such a way that it is correctly positioned with respect to a housing edge 68.
  • the assembly is again removed from the housing body 2 in order to press the armature 24 with the plunger 16.
  • annular grooves 82 of slight depth are provided on the circumference of the plunger 16. Armature 24 and plunger 16 could also, as was explained in connection with FIG. 1, be welded or glued together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

Cette vanne de régulation à plusieurs voies à commande électromagnétique pour systèmes hydrauliques de freinage de véhicules à moteur à système anti-patinage permet de mettre au moins un frein de roue (roue) en communication fluide avec une source de haute pression (THZ) ou un réservoir à basse pression (NDS). Afin de pouvoir ajuster l'écartement des bords de commande (44), la vanne de régulation à plusieurs voies comprend une coulisse (8, 8') dont la première position extrême par rapport au corps cylindrique (2) du boîtier peut être ajustée par l'intermédiaire de la position d'un élément de butée axiale (46) assujetti au poussoir (16) ou de l'épaisseur d'au moins un élément écarteur (78) situé entre la coulisse (8') et une butée axiale (76).
PCT/EP1998/000394 1997-02-01 1998-01-24 Vanne de regulation a plusieurs voies WO1998033687A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98904139A EP0956224A1 (fr) 1997-02-01 1998-01-24 Vanne de regulation a plusieurs voies
JP53251398A JP2001509752A (ja) 1997-02-01 1998-01-24 多方制御弁

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997103759 DE19703759A1 (de) 1997-02-01 1997-02-01 Mehrwege-Regelventil
DE19703759.3 1997-02-01

Publications (1)

Publication Number Publication Date
WO1998033687A1 true WO1998033687A1 (fr) 1998-08-06

Family

ID=7819006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/000394 WO1998033687A1 (fr) 1997-02-01 1998-01-24 Vanne de regulation a plusieurs voies

Country Status (4)

Country Link
EP (1) EP0956224A1 (fr)
JP (1) JP2001509752A (fr)
DE (1) DE19703759A1 (fr)
WO (1) WO1998033687A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5857478A (en) * 1997-10-28 1999-01-12 General Motors Corporation Demand responsive flow control valve
JP5418290B2 (ja) * 2010-02-24 2014-02-19 トヨタ自動車株式会社 電磁弁および圧力制御装置
ITRE20130017A1 (it) * 2013-03-13 2014-09-14 Tecnoil Srl Valvola elettromagnetica
DE102015120984A1 (de) * 2015-07-03 2017-01-05 Hilite Germany Gmbh Hydraulikventil, insbesondere hydraulisches Getriebeventil
FR3047790B1 (fr) * 2016-02-16 2018-08-31 Bontaz Centre R & D Electrovanne a etancheite amelioree
DE102017208310B4 (de) * 2017-05-17 2023-02-16 Mando Corporation Ventilanordnung und diese Ventilanordnung enthaltendes Antiblockiersystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992005992A1 (fr) * 1990-09-28 1992-04-16 Lucas Industries Public Limited Company Ameliorations concernant les sytemes de freinage hydraulique antibloquant de vehicules
US5248191A (en) * 1990-03-27 1993-09-28 Nippondenso Co., Ltd. Pressure control valve for continuous pressure control to wheel cylinder
EP0645291A1 (fr) * 1993-09-27 1995-03-29 Sumitomo Electric Industries, Ltd. Valve trois positions solénoide contrôlée
DE4441150A1 (de) * 1994-11-18 1996-05-23 Teves Gmbh Alfred Druckregelventil

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204417A1 (de) * 1990-09-07 1993-08-19 Teves Gmbh Alfred Elektromagnetventil, insbesondere fuer hydraulische bremsanlagen mit schlupfregelung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5248191A (en) * 1990-03-27 1993-09-28 Nippondenso Co., Ltd. Pressure control valve for continuous pressure control to wheel cylinder
WO1992005992A1 (fr) * 1990-09-28 1992-04-16 Lucas Industries Public Limited Company Ameliorations concernant les sytemes de freinage hydraulique antibloquant de vehicules
EP0645291A1 (fr) * 1993-09-27 1995-03-29 Sumitomo Electric Industries, Ltd. Valve trois positions solénoide contrôlée
DE4441150A1 (de) * 1994-11-18 1996-05-23 Teves Gmbh Alfred Druckregelventil

Also Published As

Publication number Publication date
EP0956224A1 (fr) 1999-11-17
DE19703759A1 (de) 1998-08-06
JP2001509752A (ja) 2001-07-24

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