EP3562717A1 - Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system - Google Patents

Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system

Info

Publication number
EP3562717A1
EP3562717A1 EP17798214.7A EP17798214A EP3562717A1 EP 3562717 A1 EP3562717 A1 EP 3562717A1 EP 17798214 A EP17798214 A EP 17798214A EP 3562717 A1 EP3562717 A1 EP 3562717A1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
hydraulic block
accumulator
piston
block
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Withdrawn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
EP17798214.7A
Other languages
German (de)
French (fr)
Inventor
Michael Schlitzkus
Rainer Fuerst
Thomas Zander
Alexander Bareiss
Michael Loeffler
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.)
Robert Bosch GmbH
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 EP3562717A1 publication Critical patent/EP3562717A1/en
Withdrawn legal-status Critical Current

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
    • B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders
    • 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
    • B60T13/10—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 fluid assistance, drive, or release
    • B60T13/12—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 fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—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 fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • 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
    • B60T13/10—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 fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/81—Braking systems
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/21—Accumulator cushioning means using springs
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
    • F15B2201/312—Sealings therefor, e.g. piston rings
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/405—Housings
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/405—Housings
    • F15B2201/4056—Housings characterised by the attachment of housing components

Definitions

  • Hydraulic block for a hydraulic unit of a brake control of a hydraulic vehicle brake system
  • the invention relates to a hydraulic block for a hydraulic unit of a brake control of a hydraulic vehicle brake system having the features of the preamble of claim 1. Furthermore, the invention relates to a method for assembling a hydraulic accumulator on such a hydraulic block with the features of the preamble of claim 6.
  • brake control is in particular a slip control, for example, a anti-lock, traction and / or vehicle dynamics control / electronic stability program thought, for which the abbreviations ABS, ASR, FDR / ESP are in use.
  • slip control hydraulic vehicle brake systems are known from passenger cars and motorcycles and are not discussed here.
  • a brake control can also be a brake pressure or brake force control of a hydraulic power-brake system with or without slip control.
  • the core of a slip control is a hydraulic unit which has a hydraulic block which is equipped with hydraulic components of the slip control and connected by brake lines to a master cylinder and to which one or more hydraulic wheel brakes are connected by brake lines. Also known for power-brake systems is also a master cylinder integrated in the hydraulic block. Hydraulic components of the cruise control include solenoid valves, hydraulic pumps (usually piston pumps), non-return valves, hydraulic accumulators, damper chambers and pressure sensors.
  • the hydraulic block is typically on block-shaped metal block, which serves for a mechanical fastening and hydraulic connection of the hydraulic components of the slip control. Interconnection means a hydraulic connection of the hydraulic components according to a hydraulic circuit diagram of the slip control. Equipped with the hydraulic components, the hydraulic block forms a hydraulic unit.
  • the published patent application DE 10 2007 001 645 A1 discloses a hydraulic accumulator for a slip-controlled hydraulic vehicle brake system, which has a storage piston which is accommodated axially movably in a storage cylinder.
  • the storage cylinder is formed by a blind hole in a hydraulic block of a slip control and a cup-shaped storage lid, which is mounted coaxially to the blind hole projecting from the hydraulic block on the hydraulic block.
  • the accumulator piston of the known hydraulic accumulator is guided and sealed exclusively in the storage lid.
  • the hydraulic block according to the invention with the features of claim 1 is provided for a hydraulic unit of a brake control, in particular a slip control of a hydraulic vehicle brake system.
  • the particular block-shaped hydraulic block has one or more hydraulic accumulators with a storage cylinder in an axially movable accumulator piston.
  • the hydraulic block preferably has one or more hydraulic accumulators for each brake circuit of the vehicle brake system.
  • the storage cylinder is formed by a blind hole in the hydraulic block and by a hollow storage cover, which is attached to the hydraulic block projecting from the hydraulic block.
  • the accumulator piston is guided axially displaceably at or near its ends in the blind hole in the hydraulic block and in the accumulator cover.
  • the hydraulic block facing the end of the accumulator piston is sealed in the blind hole in the hydraulic block. Close means a distance of up to about 3, 5 or 7% of a diameter or a length of the storage oil. bens.
  • the storage piston in the blind hole in the hydraulic block which forms part of the storage cylinder of the hydraulic accumulator
  • the hollow storage cover which after its fixing on the hydraulic block the the hydraulic block remote end of the accumulator piston leads to set up on the end remote from the hydraulic block end of the accumulator piston and thereby align coaxially with the accumulator piston and the blind hole.
  • the accumulator piston can first be introduced into the blind hole in the hydraulic block and then the accumulator cover can be placed on the
  • the storage lid is movable radially until the blind hole in the hydraulic block, which forms part of the storage cylinder, until it is fixed to the hydraulic block, so that the storage lid can be centered with the storage piston introduced into the blind hole or centered by the storage piston.
  • the determination of the storage lid on the hydraulic block can be done for example by welding or caulking. Short description of the drawing
  • FIGURE shows an outbreak of a hydraulic block according to the invention with a hydraulic accumulator in an axial section.
  • hydraulic block 1 is a cuboid metal block. It is for a hydraulic unit of a brake control of a not otherwise shown, hydraulic vehicle brake system vorge see.
  • braking controls are, for example, slip control systems such as anti-lock, traction and / or vehicle dynamics control / electronic stability programs, for which the abbreviations ABS, ASR, FDR / ESP are customary.
  • Brake controls are, for example, also brake pressure and braking force controls hydraulic hy- draulic vehicle brake systems with or without
  • the hydraulic block 1 has, for each brake circuit, a hydraulic accumulator 2 with a reservoir piston 3, which is received in an axially movable manner in a storage cylinder 4.
  • the storage cylinder 4 is formed by a cylindrical blind hole 5 in the hydraulic block 1 and a hollow storage cover 6.
  • the storage lid 6 is a hollow cylindrical, closed at one end, cup-shaped deep-drawn part made of metal, which has a flange 7 at an open end for its attachment to the hydraulic block 1.
  • the storage cover 6 is coaxial with
  • blind hole 5 arranged on the hydraulic block 1 and is from the hydraulic block 1 from.
  • the storage lid 6 is fixed by a circumferential weld 8 at its flange 7 on the hydraulic block 1.
  • Other attachment options such as caulking or gluing are also possible.
  • shape, manufacturing method and material of the hollow storage cover 6 are not mandatory for the invention.
  • the accumulator piston 3 is a hollow piston which is open at one end and closed at another end and which has a cavity 9 which, in the illustrated and described embodiment of the invention, faces away from the hydraulic block 1.
  • the accumulator piston 3 is sealed at its closed, the hydraulic block 1 facing the end with a piston seal 10 in the blind hole 5 in the hydraulic block 1.
  • the piston seal 10 is a special sealing ring whose annular cross-section has the shape of an obliquely cut half oval. It is arranged in a circumferential annular step of the accumulator piston 3, which has an acute-angled V-shaped cross-section and is open at the end of the accumulator piston 3 facing the hydraulic block 1. A peripheral surface of the annular step widens conically to the end of the accumulator piston 3, so that the piston seal 10 is held axially on the end of the accumulator piston 3. There are other sealing rings than piston seal 10 possible.
  • the accumulator piston 3 has a flange which forms a first piston guide 11 of the accumulator piston 3, which axially displaceably guides the accumulator piston 3 in the blind hole 5 in the hydraulic block 1, which forms part of the accumulator cylinder 4.
  • the first piston guide 1 1 leads the accumulator piston 3 near its end facing the hydraulic block 1 end. A distance of the first piston guide 1 1 from the end of the accumulator piston 3 is due to an axial thickness of the piston seal 10 arranged there.
  • the accumulator piston 3 At another end facing away from the hydraulic block 1, the accumulator piston 3 has a smaller diameter enlargement, which forms a second piston guide 12.
  • the second piston guide 12 leads the accumulator piston 3 at its end facing away from the hydraulic block 1 axially displaceable in the
  • Storage lid 6 which forms the storage cylinder 4 together with the blind hole 5 in the hydraulic block 1.
  • a bore 13 which opens at a bottom of the blind hole 5 of the hydraulic block 1 connects the blind hole 5 and thus the storage cylinder 4 of the hydraulic accumulator 2 with further hydraulic components, not shown, of the brake or slip control, such as solenoid valves, check valves and / or one hydraulic pump.
  • a helical compression spring is arranged as a piston spring 14 in the storage cover 6 and the cavity 9 of the accumulator piston 3, is supported inside the closed end of the storage cover 6 and acts on the accumulator piston 3 in the direction of the blind hole 5 in the hydraulic block 1.
  • the storage cover 6 has a center hole 24 for ventilation of the storage cylinder 4 on a side facing away from the hydraulic block 1 of the accumulator piston 3.
  • the storage cover 6 can also be designed to be closed.
  • a third possibility for representing a different storage volume of the hydraulic accumulator 2 is an axially shorter or longer storage cover 6, as indicated in the drawing with dashed lines.
  • the accumulator piston 3 is introduced into the blind hole 5 in the hydraulic block 1, which forms part of the accumulator cylinder 4.
  • the piston spring 14 is inserted into the cavity 9 of the accumulator piston 3 designed as a hollow piston, and the hollow cylindrical accumulator cover 6 is placed on the end of the accumulator piston 3 which faces away from the hydraulic block 1 and protrudes from the hydraulic block 1.
  • the first piston guide 1 which leads the accumulator piston 3 in the blind hole 5 in the hydraulic block 1, centered at the same time also the accumulator piston 3 in the blind hole 5, which forms part of the storage cylinder 4 of the hydraulic accumulator 2.
  • the second piston guide 12 which guides the accumulator piston 3 in the storage cover 6, centers the accumulator cover 6 on the accumulator piston 3, whereby the accumulator cover 6 is centered, that is, aligned coaxially with the blind hole 5 in the hydraulic block 1. Subsequently, the storage lid 6 is welded to the hydraulic block 1 or otherwise determined. Until it is fixed to the hydraulic block 1, the storage cover 6 is movable radially to the blind hole 5 and can thereby be centered by means of the storage piston 3 with respect to the blind hole 5.
  • the order of assembly of the accumulator piston 3, the piston spring 14 and the reservoir cover 6 is not mandatory for the invention but may differ from the order described.
  • solenoid valves 16 are arranged on the same side of the hydraulic block 1 on or in the hydraulic block 1, one of which can be seen in the drawing.
  • the solenoid valves 16 are components of the brake control, for example intake valves and exhaust valves of a slip control.
  • the solenoid valves 16 are pressed into diameter-graded blind holes, which form valve receptacles 17, in the hydraulic block 1 and compressed. tightly caulked.
  • Through holes 18, 19, which open into the valve seats 17, the solenoid valves 16 communicate with each other, with brake line connections of a master cylinder not shown or hydraulic wheel brakes, check valves, the hydraulic accumulator 2, a hydraulic pump or other hydraulic components of the brake or slip control.
  • Armature and coils of the solenoid valves 16 are outwardly from the hydraulic block 1, they are located in valve domes 20th
  • a box-shaped valve cover 21 is attached to the hydraulic block 1, which covers the storage lid 6 of the hydraulic accumulator 2 and the valve dome 20.
  • the valve cover 21 protects the storage lids 6 and the valve domes 20 from moisture and dirt, allowing the use of an open storage lid 6 with the center hole 24 in the closed end. It is also possible to provide the storage lid 6 with large breakthroughs.
  • bracket as a storage cover 6, which spans the accumulator piston 3, holds in the blind hole 5 in the hydraulic block 1, which supports the piston spring 14 and circumferentially on two opposite sides of the accumulator piston 3 so far in the circumferential direction, that he the accumulator piston 3 axially displaceable and leads radially.
  • the hydraulic block 1 forms a hydraulic unit, the core of a hydraulic part of

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulating Braking Force (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

The invention relates to a hydraulic block (1) of a slip control system of a hydraulic vehicle brake system and proposes to form a hydraulic accumulator (2) as a blind hole (5) in the hydraulic block (1), which is closed by means of a hollow storage cover (6). An accumulator piston (3) is sealed and guided to or close to the ends in the blind hole (5) in the hydraulic block (1) and in the storage cover (6).

Description

Hydraulikblock für ein Hydraulikaggregat einer Bremsregelung einer hydraulischen Fahrzeugbremsanlage  Hydraulic block for a hydraulic unit of a brake control of a hydraulic vehicle brake system
Beschreibung description
Die Erfindung betrifft einen Hydraulikblock für ein Hydraulikaggregat einer Bremsregelung einer hydraulischen Fahrzeugbremsanlage mit den Merkmalen des Oberbegriffs des Anspruchs 1 . Des weiteren betrifft die Erfindung ein Verfahren zur Montage eines Hydrospeichers an einem solchen Hydraulikblock mit den Merkmalen des Oberbegriffs des Anspruchs 6. The invention relates to a hydraulic block for a hydraulic unit of a brake control of a hydraulic vehicle brake system having the features of the preamble of claim 1. Furthermore, the invention relates to a method for assembling a hydraulic accumulator on such a hydraulic block with the features of the preamble of claim 6.
Mit Bremsregelung ist insbesondere an eine Schlupfregelung, beispielsweise eine Blockierschutz-, Antriebsschlupf- und/oder Fahrdynamikregelung/elektronisches Stabilitätsprogramm gedacht, für die die Abkürzungen ABS, ASR, FDR/ESP gebräuchlich sind. Solche Schlupfregelungen hydraulischer Fahrzeugbremsanlagen sind von Personenkraftwagen und Krafträdern bekannt und werden hier nicht näher erläutert. Eine Bremsregelung kann auch eine Bremsdruckoder Bremskraftregelung einer hydraulischen Fremdkraftbremsanlage ohne oder mit Schlupfregelung sein. With brake control is in particular a slip control, for example, a anti-lock, traction and / or vehicle dynamics control / electronic stability program thought, for which the abbreviations ABS, ASR, FDR / ESP are in use. Such slip control hydraulic vehicle brake systems are known from passenger cars and motorcycles and are not discussed here. A brake control can also be a brake pressure or brake force control of a hydraulic power-brake system with or without slip control.
Stand der Technik State of the art
Kernstück einer Schlupfregelung ist ein Hydraulikaggregat, das einen Hydraulikblock aufweist, der mit hydraulischen Bauelementen der Schlupfregelung bestückt und durch Bremsleitungen an einen Hauptbremszylinder angeschlossen ist und an den durch Bremsleitungen eine oder mehrere hydraulische Radbremsen angeschlossen sind. Bekannt insbesondere für Fremdkraftbremsanlagen ist auch ein in den Hydraulikblock integrierter Hauptbremszylinder. Hydraulische Bauelemente der Schiufpregelung sind unter anderem Magnetventile, Hydro- pumpen (meistens Kolbenpumpen), Rückschlagventile, Hydrospeicher, Dämpferkammern und Drucksensoren. Der Hydraulikblock ist typischerweise ein quaderförmiger Metallblock, der zu einer mechanischen Befestigung und hydraulischen Verschaltung der hydraulischen Bauelemente der Schlupfregelung dient. Verschaltung meint eine hydraulische Verbindung der hydraulischen Bauelemente entsprechend einem hydraulischen Schaltplan der Schlupfregelung. Bestückt mit den hydraulischen Bauelementen bildet der Hydraulikblock ein Hydraulikaggregat. The core of a slip control is a hydraulic unit which has a hydraulic block which is equipped with hydraulic components of the slip control and connected by brake lines to a master cylinder and to which one or more hydraulic wheel brakes are connected by brake lines. Also known for power-brake systems is also a master cylinder integrated in the hydraulic block. Hydraulic components of the cruise control include solenoid valves, hydraulic pumps (usually piston pumps), non-return valves, hydraulic accumulators, damper chambers and pressure sensors. The hydraulic block is typically on block-shaped metal block, which serves for a mechanical fastening and hydraulic connection of the hydraulic components of the slip control. Interconnection means a hydraulic connection of the hydraulic components according to a hydraulic circuit diagram of the slip control. Equipped with the hydraulic components, the hydraulic block forms a hydraulic unit.
Ein Beispiel eines Hydraulikblocks für ein Hydraulikaggregat eine Schlupfregelung einer Hydraulischen Fahrzeugbremsanlage offenbart das Patent DE 103 02 681 B3. An example of a hydraulic block for a hydraulic unit, a slip control of a hydraulic vehicle brake system disclosed in the patent DE 103 02 681 B3.
Die Offenlegungsschrift DE 10 2007 001 645 A1 offenbart einen Hydrospeicher für eine schlupfgeregelte hydraulische Fahrzeugbremsanlage, der einen Speicherkolben aufweist, der axial beweglich in einem Speicherzylinder aufgenom- men ist. Der Speicherzylinder wird von einem Sackloch in einem Hydraulikblock einer Schlupfregelung und einem napfförmigen Speicherdeckel gebildet, der koaxial zum Sackloch vom Hydraulikblock abstehend am Hydraulikblock angebracht ist. Der Speicherkolben des bekannten Hydraulikspeichers ist ausschließlich in dem Speicherdeckel geführt und abgedichtet. The published patent application DE 10 2007 001 645 A1 discloses a hydraulic accumulator for a slip-controlled hydraulic vehicle brake system, which has a storage piston which is accommodated axially movably in a storage cylinder. The storage cylinder is formed by a blind hole in a hydraulic block of a slip control and a cup-shaped storage lid, which is mounted coaxially to the blind hole projecting from the hydraulic block on the hydraulic block. The accumulator piston of the known hydraulic accumulator is guided and sealed exclusively in the storage lid.
Offenbarung der Erfindung Disclosure of the invention
Der erfindungsgemäße Hydraulikblock mit den Merkmalen des Anspruchs 1 ist für ein Hydraulikaggregat einer Bremsregelung, insbesondere einer Schlupfrege- lung einer hydraulischen Fahrzeugbremsanlage vorgesehen. Der insbesondere quaderförmige Hydraulikblock weist einen oder mehrere Hydrospeicher mit einem in einem Speicherzylinder axial beweglichen Speicherkolben auf. Vorzugsweise weist der Hydraulikblock einen oder auch mehrere Hydrospeicher für jeden Bremskreis der Fahrzeugbremsanlage auf. Der Speicherzylinder wird von einem Sackloch in dem Hydraulikblock und von einem hohlen Speicherdeckel gebildet, der vom Hydraulikblock abstehend am Hydraulikblock angebracht ist. Der Speicherkolben ist an oder nahe an seinen Enden in dem Sackloch in dem Hydraulikblock und in dem Speicherdeckel axial verschieblich geführt. An oder nahe an seinem einen, dem Hydraulikblock zugewandten Ende ist der Speicherkolben in dem Sackloch im Hydraulikblock abgedichtet. Nahe meint einen Abstand von bis zu etwa 3, 5 oder 7 % eines Durchmessers oder einer Länge des Speicherkol- bens. Durch die Führung des Speicherkolbens an oder nahe an seinen Enden stützt die Führung der Speicherkolben kippsicher im Speicherzylinder ab. The hydraulic block according to the invention with the features of claim 1 is provided for a hydraulic unit of a brake control, in particular a slip control of a hydraulic vehicle brake system. The particular block-shaped hydraulic block has one or more hydraulic accumulators with a storage cylinder in an axially movable accumulator piston. The hydraulic block preferably has one or more hydraulic accumulators for each brake circuit of the vehicle brake system. The storage cylinder is formed by a blind hole in the hydraulic block and by a hollow storage cover, which is attached to the hydraulic block projecting from the hydraulic block. The accumulator piston is guided axially displaceably at or near its ends in the blind hole in the hydraulic block and in the accumulator cover. At or near its one, the hydraulic block facing the end of the accumulator piston is sealed in the blind hole in the hydraulic block. Close means a distance of up to about 3, 5 or 7% of a diameter or a length of the storage oil. bens. By guiding the accumulator piston at or close to its ends, the guide of the accumulator piston is supported against tilting in the storage cylinder.
Die Unteransprüche haben vorteilhafte Ausgestaltungen und Weiterbildungen der im Anspruch 1 angegebenen Erfindung zum Gegenstand. The dependent claims have advantageous refinements and developments of the invention specified in claim 1 to the subject.
Zur Montage des Hydrospeichers an dem Hydraulikblock sieht das erfindungsgemäße Verfahren mit den Merkmalen des Anspruchs 6 vor, den Speicherkolben in das Sackloch in dem Hydraulikblock, das einen Teil des Speicherzylinders des Hydrospeichers bildet, einzubringen und den hohlen Speicherdeckel, der nach seiner Festlegung am Hydraulikblock das dem Hydraulikblock ferne Ende des Speicherkolbens führt, auf das dem Hydraulikblock abgewandte Ende des Speicherkolbens aufzusetzen und dadurch koaxial zum Speicherkolben und zum Sackloch auszurichten. Es kann wahlweise der Speicherkolben zuerst in das Sackloch im Hydraulikblock eingebracht und danach der Speicherdeckel auf denFor mounting the hydraulic accumulator to the hydraulic block method of the invention provides with the features of claim 6, the storage piston in the blind hole in the hydraulic block, which forms part of the storage cylinder of the hydraulic accumulator, and the hollow storage cover, which after its fixing on the hydraulic block the the hydraulic block remote end of the accumulator piston leads to set up on the end remote from the hydraulic block end of the accumulator piston and thereby align coaxially with the accumulator piston and the blind hole. Optionally, the accumulator piston can first be introduced into the blind hole in the hydraulic block and then the accumulator cover can be placed on the
Speicherkolben aufgesetzt oder umgekehrt zuerst der Speicherkolben in den Speicherdeckel und anschließend in das Sackloch im Hydraulikblock eingebracht werden. Der Speicherdeckel ist so lange radial zu dem Sackloch im Hydraulikblock, das einen Teil des Speicherzylinders bildet, beweglich, bis er am Hydrau- likblock festgelegt wird, so dass der Speicherdeckel mit dem in das Sackloch eingebrachten Speicherkolben zentriertbar ist bzw. vom Speicherkolben zentriert wird. Die Festlegung des Speicherdeckels am Hydraulikblock kann beispielsweise durch Schweißen oder Verstemmen erfolgen. Kurze Beschreibung der Zeichnung Inserting the accumulator piston or conversely first the accumulator piston in the storage lid and then introduced into the blind hole in the hydraulic block. The storage lid is movable radially until the blind hole in the hydraulic block, which forms part of the storage cylinder, until it is fixed to the hydraulic block, so that the storage lid can be centered with the storage piston introduced into the blind hole or centered by the storage piston. The determination of the storage lid on the hydraulic block can be done for example by welding or caulking. Short description of the drawing
Die Erfindung wird nachfolgend anhand einer in der Zeichnung dargestellten Ausführungsform näher erläutert. Die einzige Figur zeigt einen Ausbruch eines erfindungsgemäßen Hydraulikblocks mit einem Hydrospeicher in einem Achs- schnitt. The invention will be explained in more detail with reference to an embodiment shown in the drawing. The single FIGURE shows an outbreak of a hydraulic block according to the invention with a hydraulic accumulator in an axial section.
Ausführungsform der Erfindung Embodiment of the invention
Der in der Zeichnung dargestellte, erfindungsgemäße Hydraulikblock 1 ist ein quaderförmiger Metallblock. Er ist für ein Hydraulikaggregat einer Bremsregelung einer im Übrigen nicht dargestellten, hydraulischen Fahrzeugbremsanlage vorge- sehen. Solche Bremsregelungen sind beispielsweise Schlupfregelungen wie Blockierschutz-, Antriebsschlupf- und/oder Fahrdynamikregelungen/elektronische Stabilitätsprogramme, für die die Abkürzungen ABS, ASR, FDR/ESP gebräuchlich sind. Bremsregelungen sind beispielsweise auch Bremsdruck- und Brems- kraftregelungen hydraulischer Fremdkraftfahrzeugbremsanlagen ohne oder mitThe illustrated in the drawing, hydraulic block 1 according to the invention is a cuboid metal block. It is for a hydraulic unit of a brake control of a not otherwise shown, hydraulic vehicle brake system vorge see. Such braking controls are, for example, slip control systems such as anti-lock, traction and / or vehicle dynamics control / electronic stability programs, for which the abbreviations ABS, ASR, FDR / ESP are customary. Brake controls are, for example, also brake pressure and braking force controls hydraulic hy- draulic vehicle brake systems with or without
Schlupfregelung. Slip control.
Der Hydraulikblock 1 weist für jeden Bremskreis einen Hydrospeicher 2 mit einem Speicherkolben 3 auf, der axial beweglich in einem Speicherzylinder 4 auf- genommen ist. Der Speicherzylinder 4 wird von einem zylindrischen Sackloch 5 in dem Hydraulikblock 1 und einem hohlen Speicherdeckel 6 gebildet. In der dargestellten und beschriebenen Ausführungsform der Erfindung ist der Speicherdeckel 6 ein hohlzylindrisches, an einem Ende geschlossenes, napfförmiges Tiefziehteil aus Metall, das zu seiner Befestigung am Hydraulikblock 1 einen Flansch 7 an einem offenen Ende aufweist. Der Speicherdeckel 6 ist koaxial zumThe hydraulic block 1 has, for each brake circuit, a hydraulic accumulator 2 with a reservoir piston 3, which is received in an axially movable manner in a storage cylinder 4. The storage cylinder 4 is formed by a cylindrical blind hole 5 in the hydraulic block 1 and a hollow storage cover 6. In the illustrated and described embodiment of the invention, the storage lid 6 is a hollow cylindrical, closed at one end, cup-shaped deep-drawn part made of metal, which has a flange 7 at an open end for its attachment to the hydraulic block 1. The storage cover 6 is coaxial with
Sackloch 5 am Hydraulikblock 1 angeordnet und steht vom Hydraulikblock 1 ab. In der beschriebenen und dargestellten Ausführungsform der Erfindung ist der Speicherdeckel 6 durch eine umlaufende Schweißnaht 8 an seinem Flansch 7 an dem Hydraulikblock 1 befestigt. Andere Befestigungsmöglichkeiten wie Ver- stemmen oder Kleben sind ebenso möglich. Auch sind Form, Herstellungsverfahren und Werkstoff des hohlen Speicherdeckels 6 nicht zwingend für die Erfindung. Blind hole 5 arranged on the hydraulic block 1 and is from the hydraulic block 1 from. In the described and illustrated embodiment of the invention, the storage lid 6 is fixed by a circumferential weld 8 at its flange 7 on the hydraulic block 1. Other attachment options such as caulking or gluing are also possible. Also, shape, manufacturing method and material of the hollow storage cover 6 are not mandatory for the invention.
Der Speicherkolben 3 ist ein an einem Ende offener und an einem anderen Ende geschlossener Hohlkolben mit einer Höhlung 9, die in der dargestellten und beschriebenen Ausführungsform der Erfindung dem Hydraulikblock 1 abgewandt ist. Der Speicherkolben 3 ist an seinem geschlossenen, dem Hydraulikblock 1 zugewandten Ende mit einer Kolbendichtung 10 in dem Sackloch 5 im Hydraulikblock 1 abgedichtet. In der dargestellten und beschriebenen Ausführungsform der Erfindung ist die Kolbendichtung 10 ein spezieller Dichtring, dessen Ringquerschnitt die Form eines schräg durchgeschnittenen Halbovals aufweist. Er ist in einer umlaufenden Ringstufe des Speicherkolbens 3 angeordnet, die einen spitzwinkligen V-Querschnitt aufweist und an dem dem Hydraulikblock 1 zugewandten Ende des Speicherkolbens 3 offen ist. Eine Umfangsfläche der Ringstu- fe erweitert sich konisch zum Ende des Speicherkolbens 3, so dass die Kolben- dichtung 10 axial auf dem Ende des Speicherkolbens 3 gehalten ist. Es sind andere Dichtringe als Kolbendichtung 10 möglich. The accumulator piston 3 is a hollow piston which is open at one end and closed at another end and which has a cavity 9 which, in the illustrated and described embodiment of the invention, faces away from the hydraulic block 1. The accumulator piston 3 is sealed at its closed, the hydraulic block 1 facing the end with a piston seal 10 in the blind hole 5 in the hydraulic block 1. In the illustrated and described embodiment of the invention, the piston seal 10 is a special sealing ring whose annular cross-section has the shape of an obliquely cut half oval. It is arranged in a circumferential annular step of the accumulator piston 3, which has an acute-angled V-shaped cross-section and is open at the end of the accumulator piston 3 facing the hydraulic block 1. A peripheral surface of the annular step widens conically to the end of the accumulator piston 3, so that the piston seal 10 is held axially on the end of the accumulator piston 3. There are other sealing rings than piston seal 10 possible.
Im Anschluss an die Kolbendichtung 10 weist der Speicherkolben 3 einen Flansch auf, der eine erste Kolbenführung 1 1 des Speicherkolbens 3 bildet, die den Speicherkolben 3 axial verschieblich in dem Sackloch 5 im Hydraulikblock 1 führt, das einen Teil des Speicherzylinders 4 bildet. Die erste Kolbenführung 1 1 führt den Speicherkolben 3 nahe an seinem dem Hydraulikblock 1 zugewandten Ende. Ein Abstand der ersten Kolbenführung 1 1 vom Ende des Speicherkolbens 3 ist durch eine axiale Dicke der dort angeordneten Kolbendichtung 10 bedingt. Subsequent to the piston seal 10, the accumulator piston 3 has a flange which forms a first piston guide 11 of the accumulator piston 3, which axially displaceably guides the accumulator piston 3 in the blind hole 5 in the hydraulic block 1, which forms part of the accumulator cylinder 4. The first piston guide 1 1 leads the accumulator piston 3 near its end facing the hydraulic block 1 end. A distance of the first piston guide 1 1 from the end of the accumulator piston 3 is due to an axial thickness of the piston seal 10 arranged there.
An einem anderen, dem Hydraulikblock 1 abgewandten Ende weist der Speicherkolben 3 eine niedrige Durchmesservergrößerung auf, die eine zweite Kolbenführung 12 bildet. Die zweite Kolbenführung 12 führt den Speicherkolben 3 an seinem dem Hydraulikblock 1 abgewandten Ende axial verschieblich in demAt another end facing away from the hydraulic block 1, the accumulator piston 3 has a smaller diameter enlargement, which forms a second piston guide 12. The second piston guide 12 leads the accumulator piston 3 at its end facing away from the hydraulic block 1 axially displaceable in the
Speicherdeckel 6, der zusammen mit dem Sackloch 5 im Hydraulikblock 1 den Speicherzylinder 4 bildet. Storage lid 6, which forms the storage cylinder 4 together with the blind hole 5 in the hydraulic block 1.
Eine an einem Grund des Sacklochs 5 des Hydraulikblocks 1 mündende Boh- rung 13 verbindet das Sackloch 5 und damit den Speicherzylinder 4 des Hydro- speichers 2 mit weiteren, nicht dargestellten hydraulischen Bauelementen der Brems- bzw. Schlupfregelung wie Magnetventilen, Rückschlagventilen und/oder einer Hydropumpe. Eine Schraubendruckfeder ist als Kolbenfeder 14 in dem Speicherdeckel 6 und der Höhlung 9 des Speicherkolbens 3 angeordnet, stützt sich innen an dem geschlossenen Ende des Speicherdeckels 6 ab und beaufschlagt den Speicherkolben 3 in Richtung des Sacklochs 5 im Hydraulikblock 1. Der Speicherdeckel 6 weist ein Mittelloch 24 zur Be- und Entlüftung des Spei- cherzylindrs 4 auf einer dem Hydraulikblock 1 abgewandten Seite des Speicherkolbens 3 auf. Der Speicherdeckel 6 kann auch geschlossen ausgeführt sein. A bore 13 which opens at a bottom of the blind hole 5 of the hydraulic block 1 connects the blind hole 5 and thus the storage cylinder 4 of the hydraulic accumulator 2 with further hydraulic components, not shown, of the brake or slip control, such as solenoid valves, check valves and / or one hydraulic pump. A helical compression spring is arranged as a piston spring 14 in the storage cover 6 and the cavity 9 of the accumulator piston 3, is supported inside the closed end of the storage cover 6 and acts on the accumulator piston 3 in the direction of the blind hole 5 in the hydraulic block 1. The storage cover 6 has a center hole 24 for ventilation of the storage cylinder 4 on a side facing away from the hydraulic block 1 of the accumulator piston 3. The storage cover 6 can also be designed to be closed.
Zur Verwirklichung verschiedener Speichervolumina des Hydrospeicher 2 bestehen verschiedene Möglichkeiten. Eine Möglichkeit ist ein anderer Speicherkolben (nicht dargestellt). Alle anderen Teile des Hydrospeichers 2 müssen nicht geändert werden. Eine andere Möglichkeit ist es, einen oder mehrere Distanzringe 15 anschließend an die erste Kolbenführung 1 1 auf dem Speicherkolben 3 anzuordnen, der einen Kolbenhub verkürzt und dadurch ein Speichervolumen des Hyd- rospeichers 2 verkleinert. In diesem Fall muss keines der Teile des Hydrospei- cher 2 geändert werden. Eine dritte Möglichkeit zur Darstellung eines anderen Speichervolumens des Hydrospeichers 2 ist ein axial kürzerer oder längerer Speicherdeckel 6, wie er in der Zeichnung mit Strichlinien angedeutet ist. In die- sem Fall muss kein anderes Teil des Hydrospeichers 2 als der Speicherdeckel 6 und eventuell die Kolbenfeder 14 zur Darstellung eines anderen Speichervolumens des Hydrospeicher 2 geändert werden. In allen Fällen bleibt das Sackloch 5 im Hydraulikblock 1 unverändert, wobei eine Änderung einer Tiefe des Sacklochs 5 ebenfalls eine Änderung des Speichervolumens des Hydrospeichers 2 ermöglicht. To achieve different storage volumes of the hydraulic accumulator 2 there are various possibilities. One possibility is another storage piston (not shown). All other parts of the hydraulic accumulator 2 need not be changed. Another possibility is to arrange one or more spacer rings 15 subsequent to the first piston guide 1 1 on the accumulator piston 3, which shortens a piston stroke and thereby a storage volume of the hydraulic rospeichers 2 downsized. In this case, none of the parts of the hydraulic accumulator 2 need to be changed. A third possibility for representing a different storage volume of the hydraulic accumulator 2 is an axially shorter or longer storage cover 6, as indicated in the drawing with dashed lines. In this case, no other part of the hydraulic accumulator 2 than the storage cover 6 and possibly the piston spring 14 to represent a different storage volume of the hydraulic accumulator 2 must be changed. In all cases, the blind hole 5 remains unchanged in the hydraulic block 1, wherein a change in a depth of the blind hole 5 also allows a change in the storage volume of the hydraulic accumulator 2.
Zur Montage des Hydrospeichers 2 wird der Speicherkolben 3 in das Sackloch 5 in dem Hydraulikblock 1 eingebracht, das einen Teil des Speicherzylinders 4 bildet. Die Kolbenfeder 14 wird in die Höhlung 9 des als Hohlkolben ausgeführten Speicherkolbens 3 eingesetzt und der hohlzylindrische Speicherdeckel 6 auf das dem Hydraulikblock 1 abgewandte Ende des Speicherkolbens 3 aufgesetzt, das aus dem Hydraulikblock 1 vorsteht. Die erste Kolbenführung 1 1 , die den Speicherkolben 3 im Sackloch 5 im Hydraulikblock 1 führt, zentriert zugleich auch den Speicherkolben 3 in dem Sackloch 5, das einen Teil des Speicherzylinders 4 des Hydrospeicher 2 bildet. Die zweite Kolbenführung 12, die den Speicherkolben 3 in dem Speicherdeckel 6 führt, zentriert den Speicherdeckel 6 am Speicherkolben 3, wodurch der Speicherdeckel 6 zentriert, das heißt koaxial zum Sackloch 5 im Hydraulikblock 1 ausgerichtet wird. Anschließend wird der Speicherdeckel 6 am Hydraulikblock 1 festgeschweißt oder auch in anderer Weise festgelegt. Bis zur Festlegung am Hydraulikblock 1 ist der Speicherdeckel 6 radial zum Sackloch 5 beweglich und kann dadurch mittels des Speicherkolbens 3 in Bezug auf das Sackloch 5 zentriert werden. Die Reihenfolge der Montage des Speicherkolbens 3, der Kolbenfeder 14 und des Speicherdeckels 6 ist nicht zwingend für die Erfindung sondern kann von der beschriebenen Reihenfolge abweichen. For mounting the hydraulic accumulator 2, the accumulator piston 3 is introduced into the blind hole 5 in the hydraulic block 1, which forms part of the accumulator cylinder 4. The piston spring 14 is inserted into the cavity 9 of the accumulator piston 3 designed as a hollow piston, and the hollow cylindrical accumulator cover 6 is placed on the end of the accumulator piston 3 which faces away from the hydraulic block 1 and protrudes from the hydraulic block 1. The first piston guide 1 1, which leads the accumulator piston 3 in the blind hole 5 in the hydraulic block 1, centered at the same time also the accumulator piston 3 in the blind hole 5, which forms part of the storage cylinder 4 of the hydraulic accumulator 2. The second piston guide 12, which guides the accumulator piston 3 in the storage cover 6, centers the accumulator cover 6 on the accumulator piston 3, whereby the accumulator cover 6 is centered, that is, aligned coaxially with the blind hole 5 in the hydraulic block 1. Subsequently, the storage lid 6 is welded to the hydraulic block 1 or otherwise determined. Until it is fixed to the hydraulic block 1, the storage cover 6 is movable radially to the blind hole 5 and can thereby be centered by means of the storage piston 3 with respect to the blind hole 5. The order of assembly of the accumulator piston 3, the piston spring 14 and the reservoir cover 6 is not mandatory for the invention but may differ from the order described.
Mit Abstand neben dem Hydrospeicher 2 sind Magnetventile 16 auf derselben Seite des Hydraulikblocks 1 an bzw. in dem Hydraulikblock 1 angeordnet, von denen eines in der Zeichnung zu sehen ist. Die Magnetventile 16 sind Bauelemente der Bremsregelung, beispielsweise Einlassventile und Auslassventile ei- ner Schlupfregelung. Die Magnetventile 16 sind in durchmessergestufte Sacklöcher, die Ventilaufnahmen 17 bilden, im Hydraulikblock 1 eingepresst und druck- dicht verstemmt. Durch Bohrungen 18, 19, die in die Ventilaufnahmen 17 münden, kommunizieren die Magnetventile 16 miteinander, mit Bremsleitungsanschlüssen eines nicht gezeichneten Hauptbremszylinders oder hydraulischer Radbremsen, Rückschlagventilen, dem Hydrospeicher 2, einer Hydropumpe oder sonstigen hydraulischen Bauelementen der Brems- bzw. Schlupfregelung. Anker und Spulen der Magnetventile 16 stehen nach außen vom Hydraulikblock 1 ab, sie befinden sich in Ventildomen 20. At a distance next to the hydraulic accumulator 2 solenoid valves 16 are arranged on the same side of the hydraulic block 1 on or in the hydraulic block 1, one of which can be seen in the drawing. The solenoid valves 16 are components of the brake control, for example intake valves and exhaust valves of a slip control. The solenoid valves 16 are pressed into diameter-graded blind holes, which form valve receptacles 17, in the hydraulic block 1 and compressed. tightly caulked. Through holes 18, 19, which open into the valve seats 17, the solenoid valves 16 communicate with each other, with brake line connections of a master cylinder not shown or hydraulic wheel brakes, check valves, the hydraulic accumulator 2, a hydraulic pump or other hydraulic components of the brake or slip control. Armature and coils of the solenoid valves 16 are outwardly from the hydraulic block 1, they are located in valve domes 20th
An der Seite des Hydraulikblocks 1 , von dem der Speicherdeckel 6 des Hydro- speichers 2 und die Ventildome 20 abstehen, ist ein schachteiförmiger Ventildeckel 21 am Hydraulikblock 1 angebracht, der den Speicherdeckel 6 des Hydro- speichers 2 und die Ventildome 20 abdeckt. Der Ventildeckel 21 schützt die Speicherdeckel 6 und die Ventildome 20 vor Nässe und Schmutz, was die Verwendung eines offenen Speicherdeckels 6 mit dem Mittelloch 24 im geschlossenen Ende ermöglicht. Möglich ist auch, den Speicherdeckel 6 mit großen Durchbrüchen zu versehen. Es genügt ein Bügel als Speicherdeckel 6, der den Speicherkolben 3 überspannt, im Sackloch 5 im Hydraulikblock 1 hält, der die Kolbenfeder 14 abstützt und in Umfangsrichtung an zwei gegenüberliegenden Seiten des Speicherkolbens 3 so weit in Umfangsrichtung reicht, dass er den Speicherkolben 3 axial verschieblich und radial führt. On the side of the hydraulic block 1, from which the storage cover 6 of the hydraulic accumulator 2 and the valve dome 20 protrude, a box-shaped valve cover 21 is attached to the hydraulic block 1, which covers the storage lid 6 of the hydraulic accumulator 2 and the valve dome 20. The valve cover 21 protects the storage lids 6 and the valve domes 20 from moisture and dirt, allowing the use of an open storage lid 6 with the center hole 24 in the closed end. It is also possible to provide the storage lid 6 with large breakthroughs. It suffices a bracket as a storage cover 6, which spans the accumulator piston 3, holds in the blind hole 5 in the hydraulic block 1, which supports the piston spring 14 and circumferentially on two opposite sides of the accumulator piston 3 so far in the circumferential direction, that he the accumulator piston 3 axially displaceable and leads radially.
Bestückt mit den Magnetventilen 16, Drucksensoren, Hydrospeichern 2 und Kolbenpumpen und weiteren hydraulischen Bauelementen der Schlupfregelung einer nicht dargestellten hydraulischen Fahrzeugbremsanlage bildet der Hydraulik- block 1 ein Hydraulikaggregat, das Kernstück eines hydraulischen Teils derEquipped with the solenoid valves 16, pressure sensors, hydraulic accumulators 2 and piston pumps and other hydraulic components of the slip control of a hydraulic vehicle brake system, not shown, the hydraulic block 1 forms a hydraulic unit, the core of a hydraulic part of
Schlupfregelung ist. Slip control is.

Claims

Ansprüche claims
1 . Hydraulikblock für ein Hydraulikaggregat einer Bremsregelung einer hydraulische Fahrzeugbremsanlage, mit einem Hydrospeicher (2), der einen Speicherkolben (3) aufweist, der axial beweglich in einem Speicherzylinder (4) aufgenommen ist, der zu einem Teil von einem Sackloch (5) in dem Hydraulikblock (1 ) und zu einem Teil von einem hohlen Speicherdeckel (6) gebildet ist, wobei der Speicherdeckel (6) vom Hydraulikblock (1 ) abstehend am Hydraulikblock (1 ) angebracht ist und den Speicherkolben (3) an oder nahe an einem dem Hydraulikblock (1 ) abgewandten Ende führt, dadurch gekennzeichnet, dass der Speicherkolben (3) an oder nahe an einem dem Hydraulikblock (1 ) zugewandten Ende in dem Sackloch (5) im Hydraulikblock (1 ) abgedichtet und geführt ist. 1 . Hydraulic block for a hydraulic brake control unit of a vehicle hydraulic brake system comprising a hydraulic accumulator (2) having a reservoir piston (3) axially movably received in a storage cylinder (4) which is part of a blind hole (5) in the hydraulic block (1) and to a part of a hollow storage cover (6) is formed, wherein the storage lid (6) from the hydraulic block (1) projecting on the hydraulic block (1) is mounted and the accumulator piston (3) at or close to a hydraulic block ( 1) facing away from the end, characterized in that the accumulator piston (3) at or near an end facing the hydraulic block (1) in the blind hole (5) in the hydraulic block (1) is sealed and guided.
2. Hydraulikblock nach Anspruch 1 , dadurch gekennzeichnet, dass der Speicherkolben (3) an dem dem Hydraulikblock (1 ) zugewandten Ende in dem Sackloch (5) im Hydraulikblock (1 ) abgedichtet ist. 2. Hydraulic block according to claim 1, characterized in that the accumulator piston (3) is sealed at the end facing the hydraulic block (1) in the blind hole (5) in the hydraulic block (1).
3. Hydraulikblock nach Anspruch 1 , dadurch gekennzeichnet, dass der Speicherkolben (3) ein Hohlkolben mit einer Höhlung (9) auf einer dem Hydraulikblock (1 ) abgewandten Seite ist. 3. Hydraulic block according to claim 1, characterized in that the accumulator piston (3) is a hollow piston with a cavity (9) on a side facing away from the hydraulic block (1).
4. Hydraulikblock nach Anspruch 1 , dadurch gekennzeichnet, dass für verschiedene Speichervolumina das Sackloch (5) in dem Hydraulikblock (1 ), der Speicherkolben (3), eine Kolbenfeder (14) und/oder der Speicherdeckel (6) gleich sind. 4. Hydraulic block according to claim 1, characterized in that for different storage volumes, the blind hole (5) in the hydraulic block (1), the accumulator piston (3), a piston spring (14) and / or the storage cover (6) are equal.
5. Hydraulikblock nach Anspruch 1 , dadurch gekennzeichnet, dass der Speicherdeckel (6) in einem Ventildeckel (21 ) angeordnet ist, der an einer Seite (25) des Hydraulikblocks (1 ) angeordnet ist und Magnetventile (16) der Bremsregelung abdeckt, die in Ventilaufnahmen (17) des Hydraulikblocks (1 ) mechanisch befestigt und hydraulisch verschaltet sind und aus dem Hydraulikblock (1 ) vorstehen. 5. Hydraulic block according to claim 1, characterized in that the storage lid (6) in a valve cover (21) is arranged, which is arranged on one side (25) of the hydraulic block (1) and solenoid valves (16) covering the brake control, in Valve seats (17) of the hydraulic block (1) are mechanically fastened and hydraulically interconnected and protrude from the hydraulic block (1).
6. Verfahren zur Montage eines Hydrospeichers (2) an einem Hydraulikblock (1 ) für ein Hydraulikaggregat einer Bremsregelung einer hydraulische Fahrzeugbremsanlage nach Anspruch 1 , dadurch gekennzeichnet, dass der Speicherdeckel (6) bis zu einer Festlegung am Hydraulikblock (1 ) radial zu dem einen Teil des Speicherzylinders (4) des Hydrospeichers (2) bildenden Sackloch (5) im Hydraulikblock (1 ) beweglich ist und dass der Speicherkolben (3) in das Sackloch (5) in dem Hydraulikblock (1 ) eingebracht und der Speicherdeckel (6) auf das dem Hydraulikblock (1 ) abgewandte Ende des Speicherkolbens (3) aufgesetzt, dadurch koaxial ausgerichtet und an dem Hydraulikblock (1 ) festgelegt wird. 6. A method for mounting a hydraulic accumulator (2) on a hydraulic block (1) for a hydraulic unit of a brake control of a hydraulic vehicle brake system according to claim 1, characterized in that the storage cover (6) up to a determination on the hydraulic block (1) radially to the one Part of the storage cylinder (4) of the hydraulic accumulator (2) forming the blind hole (5) in the hydraulic block (1) is movable and that the accumulator piston (3) in the blind hole (5) in the hydraulic block (1) introduced and the storage cover (6) the end of the accumulator piston (3) facing away from the hydraulic block (1) is thereby aligned coaxially and fixed to the hydraulic block (1).
EP17798214.7A 2016-12-29 2017-11-16 Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system Withdrawn EP3562717A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016226304.8A DE102016226304A1 (en) 2016-12-29 2016-12-29 Hydraulic block for a hydraulic unit of a brake control of a hydraulic vehicle brake system
PCT/EP2017/079394 WO2018121913A1 (en) 2016-12-29 2017-11-16 Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system

Publications (1)

Publication Number Publication Date
EP3562717A1 true EP3562717A1 (en) 2019-11-06

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EP17798214.7A Withdrawn EP3562717A1 (en) 2016-12-29 2017-11-16 Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system

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US (1) US10814848B2 (en)
EP (1) EP3562717A1 (en)
JP (1) JP6833046B2 (en)
KR (1) KR102460742B1 (en)
CN (1) CN110114252B (en)
DE (1) DE102016226304A1 (en)
GB (1) GB2571886A (en)
WO (1) WO2018121913A1 (en)

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KR20190104144A (en) 2019-09-06
JP6833046B2 (en) 2021-02-24
GB201909117D0 (en) 2019-08-07
JP2020501984A (en) 2020-01-23
DE102016226304A1 (en) 2018-07-05
WO2018121913A1 (en) 2018-07-05
GB2571886A (en) 2019-09-11
CN110114252B (en) 2022-04-15
CN110114252A (en) 2019-08-09
KR102460742B1 (en) 2022-10-31
US10814848B2 (en) 2020-10-27
US20190337500A1 (en) 2019-11-07

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