Hydraulic block for hydraulic assembly of hydraulically powered vehicle brake system

Abstract

The invention relates to a hole of a hydraulic block (3) of a power-assisted vehicle brake equipment.

Description

Technical Field

[0001] The invention relates to a hydraulic block having the features of the invention for a hydraulic assembly of a hydraulically assisted vehicle brake system. Background Art

[0002] Publication DE 10 2016 202 113 A1 discloses a narrow, cuboid hydraulic block for a hydraulic assembly of a hydraulically powered vehicle brake system with sliding adjustment, in which a master brake cylinder bore is installed from a narrow side to an opposite narrow side, and a booster cylinder bore is installed in the hydraulic block perpendicular to the master brake cylinder bore and also penetrates through two opposite large sides of the hydraulic block. In addition, the known hydraulic block has a blind hole as a receiving portion for a pedal travel simulator. In order to generate brake pressure using boost, a booster piston can be pushed in the booster cylinder bore by an electric motor through a ball screw transmission mechanism. The electric motor is arranged coaxially with the booster cylinder bore at the outside of the hydraulic block, and the ball screw transmission mechanism - also coaxially with the electric motor and with the booster cylinder bore - is located between the electric motor and the booster piston. The electric motor and the ball screw transmission mechanism form a booster drive and together with the booster piston and the booster cylinder bore form a booster brake pressure generator for a hydraulic vehicle brake system. Summary of the invention

[0003] The hydraulic block according to the invention having the features of the invention is provided for a hydraulic assembly of a hydraulically assisted vehicle brake system. The hydraulic assembly is preferably divided into a plurality of modules, each with a hydraulic block, which can be arranged at different locations in the motor compartment or at other locations in the vehicle. The usually cuboid hydraulic blocks are connected to one another via brake lines, and the hydraulic wheel brakes are connected to one of the hydraulic blocks via the brake line.

[0004] Hydraulic blocks are used to mechanically fasten and hydraulically couple hydraulic components of vehicle brake equipment. Such hydraulic components are mainly solenoid valves, non-return valves, hydraulic accumulators, damping chambers and pressure sensors. The hydraulic components are fastened in the hydraulic block in receptacles, which are mostly constructed as cylindrical depressions, blind holes or through holes with partially graded diameters. "Coupling" means that the receptacles or the hydraulic components fastened in them are connected via pipelines in the hydraulic block according to the hydraulic circuit diagram of the vehicle brake equipment. However, the pipelines are typically not drilled in the hydraulic block.

[0005] When equipped with hydraulic components of a vehicle brake system or its slip control, the hydraulic block forms a hydraulic assembly, wherein “equipped” means that the hydraulic components are fastened in receptacles of the hydraulic block provided for them in each case.

[0006] The invention is directed in particular to the arrangement of hydraulic component elements or their receptacles and their hydraulic connections in a hydraulic block.

[0007] The hydraulic block according to the invention has one or more connections for a brake fluid reservoir on the upper side of the hydraulic block. The upper side is in particular the narrow side of the hydraulic block, which in the intended installation and use position of the hydraulic block is located at the top and on which the brake fluid reservoir is arranged. The connection for the brake fluid reservoir is in particular a depression into which a connection connection protruding from the bottom of the brake fluid reservoir is inserted or is to be inserted in a fluid-tight manner. Preferably, the brake fluid reservoir has a plurality of connection connections and the upper side of the hydraulic block according to the invention has connections arranged in a manner adapted thereto.

[0008] In addition, the hydraulic block according to the present invention has a master brake cylinder bore, which is arranged in the hydraulic block in particular parallel to the upper side of the hydraulic block and which leads in particular to the narrow side of the hydraulic block adjacent to the upper side. One or more master brake cylinder pistons can be arranged axially displaceably in the master brake cylinder bore to generate brake pressure. The master brake cylinder piston can be guided directly in the master brake cylinder bore or indirectly in a cylinder sleeve arranged in the master brake cylinder bore. One of the master brake cylinder pistons is connected to the foot brake pedal or the hand brake lever in an articulated manner via a piston rod and can be displaced in the master brake cylinder bore in this way using muscle force. Muscle force can be strengthened by a brake force amplifier. This master brake cylinder piston is also called a primary or rod piston. One or more other master brake cylinder pistons are displaced in the master brake cylinder bore by the brake pressure generated by the primary or rod piston. These master brake cylinder pistons are also called secondary or floating pistons.

[0009] The vehicle brake system has a release valve, which is in particular a solenoid valve, and the master brake cylinder bore can be hydraulically separated from the rest of the vehicle brake system, in particular from the brake circuit or wheel brakes, by means of the release valve. According to the invention, the receiving portion for the release valve is arranged in the hydraulic block between the upper side and the master brake cylinder.

[0010] When speaking here of valves or hydraulic components in general, their accommodation in a hydraulic block also means independently of whether a hydraulic block is equipped, ie independently of whether the valve or hydraulic component element is arranged in its receptacle.

[0011] The invention is based on the developments and advantageous embodiments of the invention specified in this disclosure.

[0012] One embodiment of the invention provides a depression for the connection of a wheel brake, a brake circuit or another hydraulic block of a vehicle brake system with a brake line. The connection is realized, for example, by means of a threaded connection or a press-fit connection. The depression forming the connection for the brake fluid line is arranged between the upper side and the master brake cylinder in the side of the hydraulic block adjacent to the upper side and parallel to the master brake cylinder. This side is referred to here as the motor side.

[0013] The receptacle for the non-return valve can be arranged in a space-saving manner in the bottom of the depression that forms the connection for the brake fluid reservoir. One embodiment of the invention provides that three holes in the hydraulic block connect the non-return valve or the receptacle for the non-return valve to the connection for the brake fluid line. The first hole leads from the receptacle for the non-return valve parallel to the upper side of the hydraulic block to the second hole, which extends perpendicularly to the upper side of the hydraulic block in the direction of the upper side. The second hole leads to the third hole, which leads perpendicularly into the bottom of the connection for the brake fluid line.

[0014] In order to generate brake pressure with boost, a design of the present invention provides a boost brake pressure generator, which has a boost cylinder hole in the hydraulic block, and the boost piston can be pushed in the boost cylinder hole by an electric motor through a screw transmission device or by another rotation / translation conversion transmission mechanism. A mechanical reduction transmission mechanism can be set between the electric motor and the screw transmission device. The electric motor and the screw transmission device form an electromechanical boost drive device for the boost piston and form an electromechanical boost brake pressure generator together with the boost piston and the boost cylinder hole, wherein the present invention does not exclude a form different from the electromechanical boost brake pressure generator. The boost piston can be guided directly or indirectly, for example, in a cylinder sleeve in the boost cylinder hole. The boost cylinder hole is a hole in the hydraulic block, which is particularly arranged in the motor side and is therefore arranged perpendicular to the master brake cylinder. The boost cylinder hole is particularly arranged in the hydraulic block on the side of the master brake cylinder facing away from the upper side of the hydraulic block.

[0015] The through-holes or blind holes referred to here as “holes” or “cylinder bores” can also be produced in a manner other than by drilling.

[0016] Embodiments of the invention are also possible without a separation valve or with a separation valve which is arranged at a position in the hydraulic block other than the position mentioned above.

[0017] All features disclosed in the description and the drawings can be implemented in embodiments of the invention individually or in any combination in principle. Embodiments of the invention which do not have all features of embodiments of the invention, but only have one or more features, are in principle possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is explained in more detail below based on the embodiments shown in the accompanying drawings. In which:

[0019] Figure 1 A hydraulic circuit diagram of a hydraulically powered vehicle brake system is shown;

[0020] Figure 2 A perspective view showing the Figure 1 A hydraulic block according to the present invention for a power-assisted vehicle brake system; and

[0021] Figure 3 The opposite side is shown. Figure 2 Hydraulic block. DETAILED DESCRIPTION

[0022] exist Figure 2 and Figure 3 The hydraulic block is shown transparently in FIG. 1 , which can surround the opening of the hydraulic block.

[0023] Figure 1 A hydraulic dual-circuit power-assisted vehicle brake system 1 is shown, which has a pressure generating module 2 located in a first hydraulic block 3 and a pressure regulating module 4 accommodated in a second hydraulic block. Figure 2 and Figure 3 A first hydraulic block 3 according to the invention is shown in a perspective view with a view to the opposite side of the hydraulic block 3. The hydraulic block 3 is shown transparently so that the openings of the hydraulic block can be seen. The second hydraulic block is not shown.

[0024] The vehicle brake system 1 has a dual-circuit master brake cylinder 6 which can be actuated by muscle force by means of a foot brake pedal 5, and a booster brake pressure generator 7 with a piston-cylinder unit 8, whose piston 9 can be displaced in a cylinder 12 of the piston-cylinder unit 8 via a screw transmission 11 for generating brake pressure by means of an electric motor 10. The piston-cylinder unit 8 or the booster brake pressure generator 7 can also be referred to as a plunger unit as a whole, its piston 9 being referred to as a plunger piston and its cylinder 12 being referred to as a plunger cylinder.

[0025] A brake fluid reservoir 13 is placed on the hydraulic block 3 , and two chambers of the master brake cylinder 6 are connected to the brake fluid reservoir 13 .

[0026] The pressure regulating module 4 is connected to the pressure generating module 2 via a brake line 14 for each brake circuit. Each chamber of the master brake cylinder 6 is connected via a clutch valve 15 to a connection 16 of the first hydraulic block 3 to which the brake line 14 for the pressure regulating module 4 is connected.

[0027] Cylinder 12 of booster brake pressure generator 7 is connected to connection 16 for pressure control module 4 via booster valve 17 . Cylinder 12 of booster brake pressure generator 7 is also connected directly and additionally via pressure reducing valve 18 to brake fluid reservoir 13 .

[0028] The brake fluid reservoir 13 is connected to a connection 16 for the pressure regulating module 4 via a non-return valve 19 , which allows flow in the direction from the brake fluid reservoir 13 to the pressure regulating module 4 .

[0029] The pedal travel simulator 20 is connected to the first chamber of the master brake cylinder 6 via a simulation valve 21. The pedal travel simulator 20 is a piston-cylinder unit with a spring-loaded piston into which brake fluid can be discharged from the master brake cylinder 6 when the simulation valve 21 is open, so that the foot brake pedal 5 can be moved when the clutch valve 15 is closed under power-assisted actuation of the vehicle brake system 1.

[0030] The pressure sensor 22 is connected to the second chamber of the master brake cylinder 6 , and the pressure sensor 23 is connected to the cylinder 12 of the booster brake pressure generator 7 .

[0031] The component elements of the vehicle brake system 1 described so far are parts of the pressure generating module 2 and are accommodated in the first hydraulic block 3. Figure 2 and Figure 3 In the drawings, the receptacles for these component elements are provided with their reference numerals supplemented with "`".

[0032] The operating brake is implemented as a booster brake, in which the brake pressure is generated by the booster brake pressure generator 7. For this purpose, the booster valve 17 is opened and the clutch valve 15 is closed. The master brake cylinder 6 is used as a target value transmitter for the brake pressure to be generated. When the booster brake pressure generator 7 fails, auxiliary braking can be achieved with the master brake cylinder 6.

[0033] In the hydraulic block (not shown) of the pressure regulating module 4, an inlet valve 25 and an outlet valve 26 are arranged for each wheel brake 24. The component elements of the vehicle brake system 1 described below are also arranged in the hydraulic block (not shown) of the pressure regulating module 4. The wheel brakes 24 are connected to the hydraulic block of the pressure regulating module 4 via brake lines. In the embodiment shown, the vehicle brake system 1 has two wheel brakes 24 in each brake circuit, i.e. a total of four wheel brakes and also four inlet valves 25 and four outlet valves 26. The inlet valve 25 is connected in each brake circuit via a connecting valve 27 and a brake line 14 to the corresponding connection 16 of the first hydraulic block 3 of the pressure generating module 2.

[0034] The outlet valve 26 connects the wheel brake 24 to the suction side of a hydraulic pump 28, which can also be referred to as a return pump. The vehicle brake system 1 has a hydraulic pump 28 in each brake circuit, which can be driven together with an electric motor 29. The pressure side of the hydraulic pump 28 is connected between the connecting valve 27 and the inlet valve 25.

[0035] The hydraulic pump 28, the inlet valve 25 and the outlet valve 26 form a brake pressure control valve arrangement, with which wheel-specific slip control, such as anti-lock control, drive slip control and driving dynamics control / electronic stability program, can be performed. These slip control systems are usually abbreviated as ABS, ASR and FDR / ESP. Such slip control is known and will not be explained in detail here.

[0036] The intake side of the hydraulic pump 28 is connected via a second inlet valve 30 to the brake line 14 which connects the pressure regulating module 4 to the hydraulic block of the pressure generating module 2 .

[0037] Unlike the illustrated case, the vehicle brake system 1 can also have only one hydraulic block or be divided into three or more modules, which are arranged in three or more hydraulic blocks (not shown). There are at least two independent power supplies and at least two independent electronic controllers for control valves and electric motors 10, 29 for redundant operation of the vehicle brake system 1.

[0038] The clutch valve 15, the boost valve 17, the pressure reducing valves 18, 30, the simulation valve 20, the inlet valve 25, the outlet valve 26, and the connecting valve 27 are 2 / 2-way solenoid valves, wherein the clutch valve 15, the inlet valve 25, and the connecting valve 27 are open in their non-energized initial positions, and the boost valve 17, the pressure reducing valves 18, 30, the simulation valve 20, and the outlet valve 26 are closed in their non-energized initial positions. The solenoid valve is arranged or will be arranged in a receiving portion for forming a valve depression of the hydraulic block 3. A valve dome containing an armature of the solenoid valve protrudes from the hydraulic block 3, and a magnet coil for operating the solenoid valve is placed on the valve dome.

[0039] The pressure generating module 2 of the power-assisted vehicle brake system 1 is Figure 2 In the case of observing the valve side 31 and in Figure 3 The hydraulic block 3 according to the invention, shown transparently in the figure with the motor side 32 in view, serves for mechanical fastening and hydraulic connection. Figure 1 The hydraulic components of the pressure generating module 2 of the vehicle brake system 1 shown in FIG. The components or their receptacles are arranged in and on the hydraulic block 3 and are connected by means of holes in the hydraulic block 3 according to Figure 1 The hydraulic circuits in the valve side 31 and the motor side 32 are two mutually opposite large sides of the rectangular parallelepiped hydraulic block 3 .

[0040] In the embodiment of the invention shown and described, the hydraulic block 3 is a flat, cuboid metal block, for example made of an aluminum alloy, which is provided with holes for receiving component elements and is drilled according to the hydraulic circuit diagram and the sliding adjustment of the vehicle brake system. "Drilled" means that the hydraulic block 3 is provided with holes, which connect the receiving parts to each other according to the hydraulic circuit diagram of the vehicle brake system. The holes are through-holes, blind holes and recesses, which can also be produced in a different way than by drilling. They can have diameter steps and circumferential grooves, which are not shown.

[0041] For the master brake cylinder 6, the hydraulic block 3 has a master brake cylinder bore 6' which is arranged in the hydraulic block 3 parallel to the upper side 34 in the middle between the valve side 31 and the motor side 32. The upper side 34 is the narrow side of the hydraulic block 3 which is located at the top in the provided installation position and use position of the hydraulic block 3.

[0042] In the embodiment, the master brake cylinder hole 6 'is arranged above the horizontal middle plane in the hydraulic block 1, that is, between the middle plane and the upper side 34. In the embodiment, the master brake cylinder hole 6 'is close to the middle plane. The horizontal middle plane is located in the middle between the upper side 34 and the opposite lower side 35 of the hydraulic block 1.

[0043] Parallel to and close to the master brake cylinder bore 6', the hydraulic block 3 has a significantly narrower bore than the position transmitter bore 46 for the master brake cylinder piston (primary or rod piston). A rod-shaped transmitter support mounted outside the hydraulic block 3 on a piston rod, which is connected to the master brake cylinder piston (not shown), projects into the position transmitter bore 46, and the piston rod extends into the position transmitter bore 46, and the piston rod is connected to the master brake cylinder piston (not shown), so that the transmitter support moves with the master brake cylinder piston. A permanent magnet is fastened to the transmitter support as a signal transmitter, for example, and is located in the position transmitter bore 46. In the exemplary embodiment, the position transmitter bore 46 is located approximately at the intersection of two imaginary tangent planes of the master brake cylinder bore 6', one of which is parallel to the valve side 31 and the other of which is parallel to the upper side 34 of the hydraulic block 3. The position transmitter bore 46 is open on the same narrow side 41 of the hydraulic block 3 as the master brake cylinder bore 6' and in the exemplary embodiment is approximately 2 / 3 to 3 / 4 of the length of the master brake cylinder bore.

[0044] Two depressions are arranged in the upper side 34 as Figure 2 and Figure 3 3. The brake fluid reservoir 13 is placed on the upper side 34 of the hydraulic block 3. The brake fluid reservoir has two connecting connections on its lower side, which are inserted into the connections 36 of the hydraulic block 3 in a fluid-tight manner when the brake fluid reservoir 13 is placed on the upper side 34 of the hydraulic block 3.

[0045] Between the connection 36 for the brake fluid reservoir 13 and the narrow side 41 at which the master brake cylinder bore 6 ′ opens, the hydraulic block 3 has a position sensor bore 47 for a position sensor (not shown) which measures the position of the signal transmitter and thus indirectly measures the position of the master brake cylinder piston. The position sensor is, for example, a Hall sensor with which the position can be determined from the angle of the magnetic field lines of the signal transmitter. In the exemplary embodiment, the position sensor bore 47 is installed in the valve side 31 of the hydraulic block 3 close to the connection 36 for the brake fluid reservoir 13 and close to the position transmitter bore 46.

[0046] On the valve side 31, the hydraulic block 3 has two depressions as receptacles 15' for the clutch valve 15, which are connected via holes (not shown) in the hydraulic block 3 to the master brake cylinder or master brake cylinder bore 6' and to two connections 16 of two brake circuits of the hydraulic block (not shown) of the pressure regulating module 4. The connection 16 for the pressure regulating module 4 is implemented as a depression in the motor side 32 of the hydraulic block 3. The connection 16 for the pressure regulating module 4 is close to the upper side 34 of the hydraulic block 3 and close to the connection 36 for the brake fluid reservoir 13 and between these connections. The receptacle 15' for the clutch valve 15 is located close to the master brake cylinder bore 6' between this master brake cylinder bore and the upper side 34 of the hydraulic block 3 and also between the connection 36 for the brake fluid reservoir 13. The brake line 14 can be connected to the connection 16 by means of a connection (not shown). The connection can be, for example, a threaded connection or a self-clinching press-in connection.

[0047] One of the non-return valves 19 is arranged in each projection 19 ′ in the bottom of the depression forming the connection 36 for the brake fluid reservoir 13 , through which the brake fluid can flow from the brake fluid reservoir into the bore of the hydraulic block 1 , i.e. into the vehicle brake system, but not vice versa.

[0048] The depression 19' of the receiving part for the non-return valve 19 is connected to the connection 16 for the pressure generating module 2 via three holes 37, 38, 39, respectively, wherein the first hole 37 leads from the depression 19' parallel to the upper side 34 of the hydraulic block 3 to the second hole 38 of the three holes. The second hole 38 extends perpendicularly to the upper side 34 of the hydraulic block 3 from the first hole 37 toward the upper side 34. The third hole 39 leads from the second hole 38 perpendicularly to the motor side 32 of the hydraulic block 3 to the connection 16 for the pressure regulating module 4.

[0049] The hydraulic block 3 has a through hole as a booster cylinder bore 12', which is perpendicular to the valve side 31 and perpendicular to the motor side 32 and forms the cylinder 12 of the booster brake pressure generator 7. Figure 2 and Figure 3 The electric motor 10, not shown, can be arranged externally on the hydraulic block 3 on the motor side 32 coaxially with the booster cylinder bore 12'. A screw transmission 11, such as a ball screw transmission or a general rotation / translation conversion transmission is arranged between the electric motor 10 and the piston of the booster brake pressure generator 7. A mechanical reduction transmission, such as a planetary gear transmission, can be arranged between the electric motor 10 and the screw transmission 11.

[0050] In order to fasten the electric motor 10 (not shown) to the hydraulic block 3, the hydraulic block 3 has three fastening holes 43, which are arranged in a uniform or non-uniform distribution around the booster cylinder bore 12' in the motor side 32 of the hydraulic block 3. In the embodiment, the fastening holes 43 are blind holes and can have an internal thread. It is also conceivable to have only two fastening holes arranged opposite to each other or more than three fastening holes (not shown).

[0051] In order to fasten the electronic controller (not shown), the hydraulic block 3 has a fastening hole 45 in the valve side 31. The fastening hole 45 for the electronic controller is also a blind hole in the embodiment, which can have an internal thread. In the embodiment, four fastening holes 45 are arranged near the corners in the valve side 31 of the hydraulic block 3. Different numbers and / or arrangements are possible.

[0052] In the embodiment, the booster cylinder bore 12' is arranged almost centrally in the motor side 32, and extends tangentially to the master brake cylinder bore 6' below the master brake cylinder bore 6', that is, it passes through the hydraulic block 3 on the side of the master brake cylinder bore 6' facing the lower side 35 of the hydraulic block 3. In the embodiment, the booster cylinder bore 12' is arranged close to the middle between the two narrow sides 41 of the hydraulic block 3 adjacent to the upper side 34, wherein the booster cylinder bore 12' covers the middle.

[0053] In the hydraulic block 3, three through holes are installed between the booster cylinder hole 12' and the lower side 35, which pass through from the valve side 31 to the motor side 32. These three through holes are used as motor connection holes 33 for supplying current to the electric motor 10 of the booster brake pressure generator 7. The motor connection holes 33 are installed in the hydraulic block 3 between the booster cylinder hole 12' and the lower side 35 around the booster cylinder hole 12' on an imaginary arc.

[0054] Furthermore, the hydraulic block 3 has a signal hole 40 for control lines and / or signal lines to or from the electric motor 10. For example, a rotation angle sensor of the electric motor 10 can be connected to an electronic controller arranged on the valve side 31 of the hydraulic block 3 via the signal hole 40. The signal hole 40 passes through from the valve side 31 to the motor side 32 and is arranged between the narrow side 41 and the bottom side 35 of the hydraulic block 3 between the booster cylinder bore 12 ′ and the corner of the hydraulic block 3.

[0055] On the valve side 31 , the hydraulic block 3 has two depressions as receptacles 17 ′ for the booster valve 17 , which are arranged tangentially to the master brake cylinder bore 6 ′ on both sides near the booster cylinder bore 12 ′ on the side of the master brake cylinder bore facing the bottom 35 of the hydraulic block 3 .

[0056] In order to connect the receiving portion 17 ′ for the booster valve 17 to the booster cylinder bore 12 ′, the hydraulic block 3 has a hole 42, which opens into the booster cylinder bore 12 ′ tangentially or in the direction of the secant, and the hole opens into the receiving portion 17 ′ for the booster valve 17 on both sides of the booster cylinder bore 12 ′. In the embodiment, the hole 42 extends parallel to the master brake cylinder bore 6 ′ close to its side facing away from the lower side 35 of the hydraulic block 3.

[0057] A shallow depression as a receptacle 22' for the pressure sensor 22 of the master brake cylinder 6 is arranged in the hydraulic block 3 on the valve side 31. A bore opens from the bottom of the depression into the master brake cylinder bore 6'.

[0058] A shallow depression as a receiving portion 23' for a pressure sensor 23 (which is used for the booster cylinder bore 12') is arranged in the valve side 31 of the hydraulic block 3 radially or approximately radially to the master brake cylinder bore 6' in the hydraulic block 3. The depression is connected to the booster cylinder bore 12' via the following hole, which leads to the hole 42 that connects the receiving portion 17' for the booster valve 17 to the booster cylinder bore 12'.

[0059] The depression as the receiving part 18' for the pressure reducing valve 18 is arranged in the valve side 31 of the hydraulic block 3 close to the booster cylinder bore 12'. In the embodiment, the receiving part 18' for the pressure reducing valve 18 is located below the side of one of the two receiving parts 17' for the booster valve 17 facing the lower side 35 of the hydraulic block 3, that is, at a distance from the side. The hole 44 that opens into the booster cylinder bore 12' tangentially or in the secant direction connects the receiving part 18' for the pressure reducing valve 18 with the booster cylinder or with the booster cylinder bore 12'. The receiving parts 17', 18' for one of the two booster valves 17 and the pressure reducing valve 18 can be exchanged on the side of the booster cylinder bore 12', that is, the receiving part 18' for the pressure reducing valve 18 is arranged closer to the upper side 34 and the receiving part 17' for the booster valve 17 is arranged closer to the lower side 35 of the hydraulic block 3 (not shown). The hole of the hydraulic block 3 must be adapted.

[0060] Furthermore, the hydraulic block 3 has a pedal travel simulator cylinder bore 20' for the pedal travel simulator 20. The pedal travel simulator cylinder bore 20' is a blind bore in the exemplary embodiment, which is arranged in the valve side 31 of the hydraulic block 3 between the master brake cylinder bore 6' and the underside 35 of the hydraulic block 3, close to the booster cylinder bore 12' and slightly in the direction of the underside 35 relative to the booster cylinder bore 12'.

[0061] A depression as a receptacle 21 ′ for the simulation valve 21 is arranged on the valve side 31 of the hydraulic block 3 between the master brake cylinder bore 6 ′ and the pedal travel simulator cylinder bore 20 ′ close to a vertical narrow side 41 of the hydraulic block 3 adjoining the upper side 34 .

Claims

1. A hydraulic block for a hydraulic assembly of a hydraulically powered vehicle brake system, the hydraulic block having a master brake cylinder bore (6') and a booster cylinder bore (12'), wherein: The hydraulic block (3) has a connector (36) for a brake fluid reservoir (13) at an upper side (34) of the hydraulic block (3), and the master brake cylinder hole (6') is arranged in the hydraulic block (3) parallel to the upper side (34), and the hydraulic block has a receiving portion (15') for a clutch valve (15), and the master brake cylinder hole (6') can be hydraulically separated from the rest of the vehicle brake equipment by the clutch valve, characterized in that the receiving portion (15') for the clutch valve (15) is arranged in the hydraulic block (3) between the upper side (34) and the master brake cylinder hole (6'), wherein, in a motor side (32) of the hydraulic block (3) adjacent to the upper side (34) of the hydraulic block (3) and parallel to the master brake cylinder hole (6'), the hydraulic block (3) is connected to the master brake cylinder hole (6') at the upper side (34). There is a depression in between, which serves as a connection (16) for a brake line (14) leading to a pressure regulating module (4) of the vehicle brake system (1), and a check valve (19) is connected to the connection (16) for the brake line (14) via three holes (37, 38, 39), wherein a first hole (37) leads from a receiving portion (19') for the check valve (19) parallel to the upper side (34) of the hydraulic block (3) to a second hole (38), the second hole extending perpendicularly to the upper side (34) of the hydraulic block (3) in the direction of the upper side (34) of the hydraulic block (3), and the second hole leads to a third hole (39), the third hole leads perpendicularly to the motor side (32) in the motor side (32) of the hydraulic block (3) to the bottom of the connection (16) for the brake line (14), the brake line leading to the pressure regulating module (4).

2. The hydraulic block according to claim 1, characterized in that: A receptacle (15') for the clutch valve (15) is arranged in the hydraulic block (3) parallel to the upper side (34), laterally offset to a connection (36) for the brake fluid reservoir (13) and / or tangentially to the master brake cylinder bore (6').

3. The hydraulic block according to claim 1, characterized in that: The connection (36) for the brake fluid reservoir (13) is designed as a depression in the upper side (34) of the hydraulic block (3), and the non-return valve (19) is arranged in the bottom of the depression.

4. The hydraulic block according to claim 1, characterized in that: The hydraulic block (3) has a receiving portion (22') for a pressure sensor (22) for the master brake cylinder (6), the receiving portion for the pressure sensor being arranged in a valve side (31) of the hydraulic block (3) and connected to the master brake cylinder bore (6') via a hole extending from the bottom of the receiving portion (22') for the pressure sensor into the master brake cylinder bore (6').

5. A hydraulic block for a hydraulic assembly of a hydraulically powered vehicle brake system, the hydraulic block having a master brake cylinder bore (6') and a booster cylinder bore (12'), wherein: The hydraulic block (3) has a connector (36) for a brake fluid reservoir (13) at an upper side (34) of the hydraulic block (3), and the master brake cylinder bore (6') is arranged in the hydraulic block (3) parallel to the upper side (34), and the hydraulic block has a receiving portion (15') for a clutch valve (15), and the master brake cylinder bore (6') can be hydraulically separated from the rest of the vehicle brake equipment by the clutch valve, characterized in that the receiving portion (15') for the clutch valve (15) is arranged in the hydraulic block (3) between the upper side (34) and the master brake cylinder bore (6'), wherein in the motor side (32) of the hydraulic block (3) adjacent to the upper side (34) and parallel to the master brake cylinder bore (6') The hydraulic block (3) has a booster cylinder hole (12') on the side of the master brake cylinder hole (6') facing downward (35), and the hydraulic block has a receiving portion (17') for a booster valve (17) arranged in parallel with the booster cylinder hole (12') on the valve side (31), the booster cylinder hole (12') being connectable to a connector (16) of the hydraulic block (3) for a brake line (14) through the booster valve, the brake line leading to a pressure regulating module (4) of the vehicle brake equipment (1), and a hole (42) in the hydraulic block (3) leading tangentially or along a secant direction to the booster cylinder hole (12') connecting the receiving portion (17') for the booster valve (17) to the booster cylinder hole (12').

6. The hydraulic block according to claim 5, characterized in that: The hydraulic block (3) has a receiving portion (23') for a pressure sensor (23) for the booster cylinder (12), which is arranged between the master brake cylinder bore (6') and the motor side (32) in the motor side (32) of the hydraulic block (3) and is connected to the booster cylinder bore (12') via the following hole, which leads to a hole (42) that connects a receiving portion (17') for the booster valve (17) to the booster cylinder bore (12').

7. A hydraulic block for a hydraulic assembly of a hydraulically powered vehicle brake system, the hydraulic block having a master brake cylinder bore (6') and a booster cylinder bore (12'), wherein: The hydraulic block (3) has a connection (36) for a brake fluid reservoir (13) at an upper side (34) of the hydraulic block (3), and the master brake cylinder hole (6') is arranged in the hydraulic block (3) parallel to the upper side (34), and the hydraulic block has a receiving portion (15') for a clutch valve (15), and the master brake cylinder hole (6') can be hydraulically separated from the rest of the vehicle brake equipment by the clutch valve, characterized in that the receiving portion (15') for the clutch valve (15) is arranged in the hydraulic block (3) between the upper side (34) and the master brake cylinder hole (6'), wherein a portion of the hydraulic block (3) adjacent to the upper side (34) and adjacent to the master brake cylinder hole (6') `), the hydraulic block (3) has a booster cylinder hole (12') on the side of the master brake cylinder hole (6') facing the lower side (35), and the hydraulic block has a receiving portion (18') for a pressure reducing valve (18) arranged in parallel with the booster cylinder hole (12') on the motor side (32), the booster cylinder hole (12') can be connected to the connector (36) for the brake fluid storage container (13) of the hydraulic block (3) through the pressure reducing valve, and a hole (44) in the hydraulic block (3) that leads tangentially or along the secant direction to the booster cylinder hole (12') connects the receiving portion (18') for the pressure reducing valve (18) with the booster cylinder hole (12').

8. A hydraulic block for a hydraulic assembly of a hydraulically powered vehicle brake system, the hydraulic block having a master brake cylinder bore (6') and a booster cylinder bore (12'), wherein: The hydraulic block (3) has a connector (36) for a brake fluid reservoir (13) at the upper side (34) of the hydraulic block (3), and the master brake cylinder hole (6') is arranged in the hydraulic block (3) parallel to the upper side (34), and the hydraulic block has a receiving portion (15') for a clutch valve (15), and the master brake cylinder hole (6') can be hydraulically separated from the rest of the vehicle brake equipment by the clutch valve, characterized in that the receiving portion (15') for the clutch valve (15) is arranged in the hydraulic block (3) at the upper side (34) and the master brake cylinder hole (6'), wherein, in the valve side (31) of the hydraulic block (3) adjacent to the upper side (34) and parallel to the master brake cylinder hole (6'), the hydraulic block (3) has a pedal stroke simulator cylinder hole (20') on the side of the master brake cylinder hole (6') facing the lower side (35) of the hydraulic block (3), and in the motor side (32) of the hydraulic block (3) opposite to the valve side (31), the hydraulic block has a receiving portion (21') for a simulation valve (21) between the pedal stroke simulator cylinder hole (20') and the master brake cylinder hole (6').

9. The hydraulic block according to any one of claims 1 to 8, characterized in that The hydraulic block (3) has one or more motor connection holes (33) between the booster cylinder hole (12') and the lower side (35) of the hydraulic block (3), which are used to supply current to the electric motor (10) of the booster brake pressure generator (7), and / or the hydraulic block has a signal hole (40) between the booster cylinder hole (12') and the corner of the hydraulic block (3).

10. The hydraulic block according to any one of claims 1 to 8, characterized in that The hydraulic block (3) has a position transmitter hole (46) parallel to the master brake cylinder hole (6') near the master brake cylinder hole (6').

Images