KR20210094557A - Cuboid hydraulic block for hydraulic unit of slip controller of hydraulic vehicle brake system - Google Patents

Abstract

The present invention relates to arranging the solenoid valves of a slip controller of a hydraulic vehicle brake system in a valve side (14) of a cuboid hydraulic block (13). Receptacles for solenoid valves are arranged in a matrix with 4 rows and 4 columns. Four inlet valve receptacles 15 are arranged in four columns of the first row of the matrix, two outlet valve receptacles 16 are arranged in outer columns of the second row of the matrix, and two intake valve receptacles are arranged The parts 19 are arranged between the outer columns and the inner columns in the third row of the matrix, and two separate valve receptacles 20 are disposed in the outer columns of the fourth row of the matrix and the other two intake valve receptacles ( 16) are placed in the inner columns. The outlet valve receptacles 16 and the separation valve receptacles 20 in the two outer rows may be arranged interchangeably according to the invention.

Description

Cuboid hydraulic block for hydraulic unit of slip controller of hydraulic vehicle brake system

The present invention relates to a cuboid hydraulic block for a hydraulic device of a slip controller of a hydraulic vehicle brake system having the features of the preamble of claim 1 or 2 .

Slip controllers are for example anti-lock controller, drive slip controller and/or vehicle dynamics controller/electronic stability program for which the abbreviations ABS, ASR, FDR/ESP are mainly used. Such slip controllers of hydraulic vehicle brake systems are known in passenger cars and motorcycles and are not described in detail here.

The heart of these slip controllers is a hydraulic system including a hydraulic block to which the hydraulic components of the slip controller are mounted and connected to the master brake cylinder via brake lines and to hydraulic wheel brakes via brake lines. Hydraulic components are inter alia solenoid valves, hydraulic pumps (mainly piston pumps), check valves, hydraulic accumulators, damper chambers and pressure sensors. The hydraulic block is a metal block, typically a cuboid, used for mechanically securing and hydraulically interconnecting the hydraulic components of a slip controller. Interconnection means hydraulically coupling hydraulic components according to the hydraulic circuit diagram of the slip controller.

The hydraulic block includes receptacles for hydraulic components of the slip controller. Receptacles are generally diametrically stepped cylindrical countersinks, blind holes or through holes, which are provided in the hydraulic block and into which hydraulic components are introduced, eg press-fitted, fully or partially. For example, hydraulic pumps are generally fully introduced into their receptacles within the hydraulic block, but in the case of solenoid valves generally only the hydraulic part is introduced into the receptacle of the hydraulic block and the electromagnetic part of the solenoid valve protrudes from the hydraulic block. Receptacles for hydraulic pumps, in particular piston pumps, are often referred to as pump bores. Receptacles for solenoid valves are referred to herein as valve receptacles. The receptacles are coupled to each other according to the hydraulic circuit diagram of the slip controller, usually by Cartesian boring of the hydraulic block. Cartesian boring means that the bores provided in the block are parallel and perpendicular to each other and to the surface and edges of the hydraulic block. When the hydraulic components are mounted, the hydraulic block forms a hydraulic system.

Known hydraulic blocks for coupling a hydraulic block with a master brake cylinder and for coupling a hydraulic wheel brake with a hydraulic block include connections for brake lines. The connections are generally cylindrical countersinks or blind holes, for example comprising an internal thread for threading with a threaded nipple of the brake line or for press-fitting and caulking the press-in nipple of the brake line, preferably with a so-called self-locking technique. There is no thread for Self-locking means that upon press-fitting into the connection of the hydraulic block, the press-fitting nipple is self-pressure-sealingly caulked within the connection of the hydraulic block under plastic deformation of the material of the hydraulic block surrounding the connection.

Patent application DE 10 2006 059 924 A1 discloses as prior art a hydraulic block for a hydraulic device of a slip controller of a hydraulic vehicle brake system, wherein all valve receptacles for the solenoid valves of the slip controller are located on the cover side of the cuboidal hydraulic block ( also called valve side). The cover side is not cube-shaped and is one of the two large sides of the cuboid hydraulic block, which is longer than thick and wider. The cover side may be square or rectangular. In the hydraulic block of the prior art, the valve receptacles are arranged in an imaginary matrix with four rows and four columns on the valve side of the hydraulic block, the rows and columns running parallel and perpendicular to the surface and edges of the cuboid hydraulic block do. The four inlet valve receptacles are arranged in four columns of the first row and the four outlet valve receptacles are arranged in four columns of the second row of the matrix. In the third row of the matrix two intake valve receptacles are respectively arranged between the inner and outer columns of the matrix and in the fourth row two separate valve receptacles are arranged in the two outer columns of the matrix.

A hydraulic block according to the invention with the features of claim 1 is provided for a hydraulic arrangement of a slip controller of a hydraulic vehicle brake system. The hydraulic block is a cuboid and contains valve receptacles for the solenoid valves of the slip controller on the side referred to herein as the valve side. The valve side is particularly one of the two large sides of the hydraulic block. The valve receptacles are arranged in a matrix with four rows and four columns extending parallel and perpendicular to the surface and edge of the hydraulic block.

Four inlet valve receptacles are arranged in four columns of the first row of the matrix.

Two outlet valve receptacles are arranged in the outer columns of the second row of the matrix. The outer rows of the matrix lie between the inner rows of the matrix and the surfaces of the hydraulic block parallel to the rows, adjacent to the valve side. The inner rows of the matrix lie between the outer rows and the imaginary centerline of the valve side of the hydraulic block, parallel to the rows.

Two other outlet valve receptacles are arranged in the two inner columns of the fourth row of the matrix. Two separate valve receptacles are arranged in the two outer columns of the fourth row of the matrix.

Two intake valve receptacles are respectively disposed between the outer column and the inner column in the third row of the matrix. That is, the intake valve receptacles are arranged to be offset inwardly with respect to the outer columns and outwardly with respect to the inner columns, and in particular approximately half or a little of their diameter protrude into the outer column and the inner columns of the third row of the matrix, respectively.

The present invention achieves a preferred arrangement of the valve receptacles and provides for a preferred boring of the hydraulic block, ie a preferred engagement of receptacles for the hydraulic components of the slip controller in terms of their manufacture and flow.

In particular, the present invention makes space for an enlarged passageway for the power connections of the electric motor of the slip controller which is used to drive the hydraulic pumps of the slip controller and is provided on the hydraulic block outside the valve side, in particular facing the valve side. create The passage for the power connections of the electric motor passes from the valve side to the opposite side of the hydraulic block. 5. The arrangement of the valve receptacles according to the invention according to claim 4 allows the passage to be arranged in the middle between the two inner columns, between the first and second rows or in the second row of the matrix. space is created for

In an alternative embodiment of the independent claim 2, two of the separation valve receptacles and the outlet valve receptacles are exchanged. That is, the two separate valve receptacles are arranged in the second row and preferably in the outer columns of the matrix, and all four outlet valve receptacles are arranged in the 4 columns of the fourth row of the matrix. The other valve receptacles are arranged as described in claim 1 and above.

The subject matter of the dependent claims are variants of the preferred construction and embodiment of the invention specified in the independent claims.

All features disclosed in the description and drawings can be implemented individually or in principle in any combination in the embodiments of the present invention. In principle, embodiments of the invention with one or more features, but not all features of the claims or embodiments of the invention, are permitted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is explained in more detail below with reference to embodiments shown in the drawings.

1 is a hydraulic circuit diagram of a hydraulic vehicle brake system having a slip controller;
2 is a schematic view of the valve side of a hydraulic block according to the invention, and
3 is a schematic diagram as in FIG. 2 of an alternative embodiment of a hydraulic block according to the invention;

The hydraulic vehicle brake system 1 shown in FIG. 1 is a muscle strength vehicle brake system 1 with a slip controller 2 and two brake circuits I, II. The system may be operated with a master brake cylinder 3 by force, which may include a vacuum, electromechanical or other brake booster (not shown).

Each brake circuit I, II comprises two hydraulic wheel brakes 4 to which an inlet valve 5 and an outlet valve 6 are respectively assigned. The inlet valves 5 and the outlet valves 6 form wheel brake pressure control valve assemblies 5 , 6 allowing wheel brake pressure to be individually controlled at the wheel brakes 4 . In the embodiment, the inlet valves 5 are 2/2-way solenoid valves open in the de-energized default position and the outlet valves 6 are 2/2-way solenoid valves that are closed in the de-energized default position.

The two brake circuits I, II are connected to the master brake cylinder 2 by means of isolation valves 7 , which in the embodiment are a 2/2-way solenoid valve open in the current-free basic position. is implemented as The wheel brake 4 is connected to the disconnect valve 7 by an inlet valve 5 .

Each brake circuit I, II comprises a hydraulic accumulator 9 and a hydraulic pump 10 which can be driven by a common electric motor 11 . By their outlet valves 6 the wheel brakes 4 are connected to the hydraulic accumulators 9 and to the intake sides of the hydraulic pumps 10 . The pressure sides of the hydraulic pumps 10 are connected to the brake circuits I, II between the isolation valves 7 and the inlet valves 5 . Inlet valves 5 and outlet valves 6 and hydraulic pumps 10 forming wheel brake pressure control valve assemblies 5 , 6 allow wheel brake pressure at the respective wheel brakes 4 . which can be individually controlled, these are slip controllers, such as anti-lock controllers, drive slip controllers and/or vehicle dynamics controllers/electronic stability programs in a known manner, abbreviated as ABS, ASR and/or FDR/ESP in general.

In addition, the vehicle brake system 1 includes an intake valve 12 in each brake circuit I, II, whereby the intake sides of the hydraulic pumps 10 are connected to the master brake cylinder 3 by the intake valve. can be connected, so that when the brake fluid is cold and viscous, the brake pressure can be quickly built up by the hydraulic pumps 10 when the master brake cylinder 3 is not activated and there is no pressure in the vehicle brake system 1 . In the embodiment, the intake valves 12 are 2/2-way solenoid valves closed in the current-free default position.

The vehicle brake system 1 is connected to a pressure sensor 8 for measuring the master brake cylinder pressure in one of the two brake circuits I of the master brake cylinder 3 and to each brake circuit I, II. a brake circuit pressure sensor 31 , which is connected to the vehicle brake system 1 between the disconnect valves 7 and the inlet valves 5 .

The solenoid valves 5 , 6 , 7 , 12 , check valves, hydraulic accumulators 9 and hydraulic pumps 10 are mounted in a slip controller 2 into the receptacles of the hydraulic block 13 according to the invention. ) of hydraulic components. The hydraulic block 13 is, in the embodiment shown and described, a block of cuboidal metal that is (somewhat) longer than wide and about three to four times longer or wider than thick and about three to four times longer than thick. The hydraulic block 13 may be the same length as the width or shorter in length than the width (not shown).

One of the two large opposite sides of the hydraulic block 13 is here referred to as the valve side 14 , in which side a valve for the solenoid valves 5 , 6 , 7 , 12 of the slip controller 2 . Receptacles 15 , 16 , 19 , 20 are provided. The valve receptacles 15 , 16 , 19 , 20 are diametrically stepped cylindrical blind holes into which the solenoid valves 5 , 6 , 7 , 12 are inserted and pressure-sealed caulked or otherwise pressure-sealed. The valve dome with the armature and coil of the solenoid valves 5 , 6 , 7 , 12 projects on the valve side 14 from the hydraulic block 13 . In FIG. 2 , which shows the valve side 14 of the hydraulic block 13 according to the invention, the valve receptacles 15 , 16 , 19 , 20 are schematically indicated by circles.

The valve receptacles 15 , 16 , 19 , 20 are arranged in an imaginary matrix with 4 rows and 4 columns shown by dashed lines in FIG. 2 . The columns and rows of the matrix extend parallel and perpendicular to the edges and surfaces of the hydraulic block 13 .

Four inlet valve receptacles 15 , which are valve receptacles for the inlet valves 5 of the slip controller 2 of the vehicle brake system 1 , are arranged in the first row at the valve side 14 of the hydraulic block 13 . given in the four columns of the matrix.

Two outlet valve receptacles 16 , which are valve receptacles for the outlet valves 6 of the slip controller 2 of the vehicle brake system 1 , are arranged in a second row at the valve side 14 of the hydraulic block 13 . provided to the external columns in The outer rows of the matrix are adjacent to the valve side 14 of the hydraulic block 13 and parallel to the rows, between the sides of the hydraulic block 13 , here referred to as longitudinal sides 17 , and the inner rows of the matrix. placed on The inner rows lie between the outer rows and the longitudinal center 18 of the hydraulic block 13 or valve side 14 , parallel to the rows and longitudinal sides 17 .

Two intake valve receptacles 19 , which are valve receptacles for the intake valves 12 of the slip controller 2 of the vehicle brake system 1 , are formed in a matrix at the valve side 14 of the hydraulic block 13 . It is provided in 3 rows, specifically placed between the outer column and the inner column respectively. That is, the intake valve receptacles 19 are offset inwardly with respect to the outer rows and outwardly with respect to the inner rows. The intake valve receptacles 19 each project about half their diameter into the outer and inner rows of the matrix.

In the fourth row of the matrix, two separation valve receptacles 20, which are valve receptacles for the isolation valves 7 of the slip controller 2 of the vehicle brake system 1, are provided in the two outer rows, Two different outlet valve receptacles 16 for the two different outlet valves 6 of the slip controller 2 of the vehicle brake system 1 are in internal rows at the valve side 14 of the hydraulic block 13 . is provided

Between the first and second rows and between the inner and outer columns of the matrix respectively, i.e. the two inlet valve receptacles 15 of the inner and outer columns respectively and the outlet valve 16 in the outer column of the second row of the matrix In between the two damper receptacles 21 of the slip controller 2 of the vehicle brake system 1 are provided on the valve side 14 of the hydraulic block. Two other damper receptacles 21 are external to the intake valve receptacles 19 in the outer columns of the third row of the matrix at the valve side 14 of the hydraulic block, ie the intake valve receptacles 19 and longitudinal It is provided between the sides 17 . Damper receptacles 21 are provided for installing known pressure change dampers not shown in FIG. 1 . Pressure change dampers relieve pressure oscillations and sudden pressure changes of the brake fluid in the vehicle brake system 1 .

In one of the two inner columns of the second row of the matrix there is arranged a receiver 22 for the pressure sensor 8 for the master brake cylinder pressure, in the other of the two inner columns of the second row of the matrix the vehicle A receptacle 23 for one of the two brake circuit pressure sensors 31 of the slip controller 2 of the brake system 1 is provided on the valve side 14 of the hydraulic block 13 .

The other receptacle 23 for the other of the two brake circuit pressure sensors 31 of the slip controller 2 of the vehicle brake system 1 is the length of the matrix at the valve side 14 of the hydraulic block 13 . It is arranged below the fourth row in the directional center 18 . "Below the fourth row" means offset away from the third row.

Four wheel connections 24 for the brake lines leading from the hydraulic block 13 to the wheel brakes 4 are provided in four rows of the matrix on the transverse side of the hydraulic block 13 . Said transverse side is referred to herein as the connecting side 25 . The connecting side 25 is the surface of the cuboid hydraulic block 13 parallel to the columns of the matrix on the side of the first row of hydraulic blocks 13 away from the other rows. The wheel connections 24 for the brake lines are cylindrical countersings or blind holes, like the master brake cylinder connections for the master brake cylinder 3 to be described later, these are the hydraulic block 13 connecting the connections 24 , 26 . ) plastically deforms the material of the hydraulic block 13 surrounding the connections 24 , 26 when pressed into It is provided for press-fitting so-called self-clinch press-fitting nipples. It is also possible for the connections 24 , 26 for the break lines to include an internal thread for screwing the screw nipples for the fixing of the break lines.

The two master brake cylinder connections 26 for the master brake cylinder 3 , ie for the brake lines leading from the master brake cylinder 3 to the hydraulic block 13 , are connected to the hydraulic block opposite the valve side 14 . (13) is provided between the outer and inner rows of the matrix, or between the two inlet valve receptacles 15 in the outer and inner rows of the matrix and the wheel connections 24 in the outer and inner rows of the matrix .

Accumulator receptacles 27 for the hydraulic accumulators 9 of the slip controller 2 of the vehicle brake system 1 are matrix on the transverse side 28 opposite the connecting side 25 in the hydraulic block 13 . are provided in the middle between the inner and outer columns of each. The accumulate receptacles 27 reach close to the outlet valve receptacles 16 and the intake valve receptacles 19 in the fourth row of the matrix.

The hydraulic block 13 comprises in the longitudinal center 17 in the second row of the matrix a through hole as a passage 29 for the power and signal lines for the electric motor 11 . In the illustrated embodiment of the present invention, the passageways 29 are offset slightly into the first row of the matrix, specifically less than half their diameter. A passage 29 passes from the valve side 14 to the opposite side of the hydraulic block 13 .

The master brake cylinder connection lines 30 are led directly from the master brake cylinder connections 26 to the accumulator receptacles 27 . The master brake cylinder connection lines 30 are bores provided from the hydraulic block 13 through the base of the accumulator receptacles 27 to the master brake cylinder connections 26 . Master brake cylinder connection lines 30 run on the base into master brake cylinder connections 26 . The receptacles 22 , 23 for the pressure sensors 8 , 31 communicate with the master brake cylinder connection lines 30 via short coupling lines. The coupling lines are bores leading to the master brake cylinder connection lines 30 , provided axially in the receptacles 22 , 23 for the pressure sensors 8 .

In FIG. 3 , in contrast to FIG. 2 , in the second row of the matrix two separate valve receptacles 20 are exchanged with two outlet valve receptacles 16 , ie the two separate valve receptacles 20 are first In row 2 the two outer columns are provided, and all four outlet valve receptacles 16 are provided in the four columns of the fourth row of the matrix of the hydraulic block 13 . All other receptacles are arranged in FIG. 3 as in FIG. 2 .

1 vehicle brake system
2 Sleep controller
3 master brake cylinder
4 wheel brake
5, 6, 7, 12 solenoid valve
8 pressure sensor
11 electric motor
13 hydraulic block
14 valve side
15 Inlet valve receptacle
16 outlet valve receptacle
17, 25, 28 surface
18 longitudinal center
19 intake valve receptacle
20 Isolation valve receptacle
21 Damper Receptacle
22, 23 receptacle
26 Master brake cylinder connection
29 aisle
30 Master brake cylinder connection line
31 brake circuit pressure sensor
I, II brake circuit

Claims (7)

A cuboid hydraulic block for a hydraulic system of a slip controller (2) of a hydraulic vehicle brake system (1), the hydraulic block being a slip arranged in a matrix with four rows and four columns at the valve side of the hydraulic block (13) valve receptacles (15, 16, 19, 20) for the solenoid valves (5, 6, 7, 12) of the controller, the four inlet valve receptacles (15) being 4 of the first row of the matrix two outlet valve receptacles 16 are arranged in the outer columns of the second row of the matrix, and two intake valve receptacles 19 are arranged in the third row with the outer columns and inner columns of the matrix A cuboidal hydraulic block for a hydraulic device of a slip controller (2) of a hydraulic vehicle brake system (1), arranged between the rows and with separation valve receptacles (20) arranged in a fourth row of the matrix, the hydraulic block comprising:
The two outlet valve receptacles 16 are arranged in two inner columns of the fourth row of the matrix and the separator valve receptacles 20 are arranged in the two outer columns of the fourth row of the matrix A cuboidal hydraulic block for a hydraulic device of a slip controller (2) of a hydraulic vehicle brake system (1), characterized in that it becomes A cuboid hydraulic block for a hydraulic device of a slip controller (2) of a hydraulic vehicle brake system (1), the hydraulic block being arranged in a matrix with four rows and four columns at the valve side of the hydraulic block (13) valve receptacles (15, 16, 19, 20) for the solenoid valves (5, 6, 7, 12) of the controller, the four inlet valve receptacles (15) being 4 of the first row of the matrix The hydraulic device of the slip controller 2 of the hydraulic vehicle brake system 1, arranged in rows of two, and two intake valve receptacles 19 are arranged in the third row between the outer and inner columns of the matrix. In the cuboidal hydraulic block for
Hydraulic vehicle brake, characterized in that two separate valve receptacles (20) are arranged in the second row of the matrix, and four outlet valve receptacles (16) are arranged in four columns of the fourth row of the matrix A cuboid hydraulic block for the hydraulics of the slip controller (2) of the system (1). 3. The method according to claim 1 or 2,
Receptacles 23 for pressure sensors 31 of wheel brakes or brake circuits I, II of the vehicle brake system 1 are located in the longitudinal center 18 between the two inner rows of the matrix A cuboidal hydraulic block for a hydraulic device of a slip controller (2) of a hydraulic vehicle brake system (1), characterized in that it is arranged under row 4 and/or in an inner column of said second row of said matrix. 4. The method according to any one of claims 1 to 3,
A hydraulic vehicle, characterized in that the receptacles (22) for the pressure sensors (8) of the master brake cylinders (3) of the vehicle brake system (1) are arranged between the inner and outer rows in the second row of the matrix A cuboid hydraulic block for the hydraulic system of the slip controller (2) of the brake system (1). 5. The method according to any one of claims 1 to 4,
The hydraulic block 13 has a passage 29 for power connections of the electric motor 11 of the slip controller 2 passing from the valve side 14 to the opposite side of the hydraulic block 13 in internal rows. A slip controller (2) of a hydraulic vehicle brake system (1), characterized in that it comprises in the longitudinal center (18) between and between the first and second rows or in the second row of the matrix. ) cuboid hydraulic block for hydraulics. 6. The method according to any one of claims 1 to 5,
A damper receiver 21 for a pressure change damper is arranged between the first and second rows of the matrix and between an inner column and an outer column and/or the intake air in an outer column of the third row of the matrix A cuboidal hydraulic block for a hydraulic device of a slip controller (2) of a hydraulic vehicle brake system (1), characterized in that it is disposed externally to the side of the valve receptacles (19). 7. The method of any one of claims 2, 3, 4 and/or 6,
The hydraulic block 13 includes a master brake cylinder connection line 30, the master brake cylinder connection line 30 communicates with the master brake cylinder connection 26 of the hydraulic block 13, and the hydraulic block ( extends through the hydraulic block 13 parallel or perpendicular to the surfaces 17 , 25 , 28 and edges of 13 ); and the receptacle 23 for the brake circuit pressure sensor 31 of the brake circuit I, II of the vehicle brake system 1 or the pressure sensor of the wheel brake 4 and/or the vehicle brake system 1 ) of said receptacle 22 for said pressure sensor 8 of said master brake cylinder 3 and/or said damper receptacle 21 for a pressure change damper is directly and/or indirectly connected to said A cuboidal hydraulic block for a hydraulic device of a slip controller (2) of a hydraulic vehicle brake system (1), characterized in that it communicates with a master brake cylinder connection line (30).

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