JP6744978B2 - Hydraulic block for slip control hydraulic unit - Google Patents

Description

The present invention relates to a rectangular parallelepiped hydraulic block for a hydraulic unit for slip control of a hydraulic vehicle brake system, which has the configuration of the preamble of claim 1.

Slip controls are, for example, anti-block control programs, traction control programs and/or dynamic drive control/electronic stability programs, for which the abbreviations ABS, ASR, FDR/ESP are commonly used. Such slip controls of hydraulic vehicle braking systems are known from passenger cars and motorcycles and will not be described in further detail here.

The core member of such slip control is the hydraulic unit. The hydraulic unit has a hydraulic block, which comprises hydraulic components for slip control, is connected to the brake master cylinder by a brake pipe, and the hydraulic block has one brake pipe. Or multiple hydraulic wheel brakes are connected. The hydraulic components are solenoid valves, hydraulic pumps (mainly piston pumps), check valves, hydraulic reservoirs, damper chambers, pressure sensors, among others. The hydraulic block is typically a rectangular metal block used for mechanical fastening and hydraulic connection of hydraulic components of the slip control. Wiring means hydraulically coupling hydraulic components in correspondence with the hydraulic circuit diagram of the slip control.

The hydraulic block has a receptacle for the hydraulic components of the slip control. The receiving part is usually a cylindrical settling part or bag hole which is almost always provided with a step in the diameter direction, and these settling part or bag holes are provided in the hydraulic block, and these settling parts or The hydraulic component is completely or partially inserted into the blind hole, for example press-fitted. For example, a hydraulic pump is usually fully inserted in its receptacle in the hydraulic block, whereas in the case of a solenoid valve, only the hydraulic part is inserted in the receptacle of the hydraulic block and the solenoid valve's The electromagnetic part is usually projected from the hydraulic block. By orthogonally drilling the hydraulic blocks as usual, the receptacles are connected to each other corresponding to the hydraulic circuit diagram of the slip control. Orthogonal drilling means drilling portions provided in the hydraulic block in parallel or at right angles to each other and to the surface and edge of the hydraulic block. When equipped with hydraulic components, the hydraulic block forms a hydraulic unit.

In order to connect the hydraulic block to the brake master cylinder and to connect the wheel brakes to the hydraulic block, known hydraulic blocks have a connection for a brake pipe. These connections are typically cylindrical sinks or blind holes, which can have internal threads, for example for screwing the brake pipe, or can be caulked.

Patent Document 1 discloses a hydraulic vehicle brake in which a receiving portion for a solenoid valve of a slip control is arranged on a cover surface, and four connecting portions for hydraulic wheel brakes are arranged on a lateral surface of a hydraulic block. Disclosed is a hydraulic block for a slip control hydraulic unit of the apparatus. The two connections for the two-circuit brake master cylinder are arranged on the base surface of the known hydraulic block, which is opposite the covering surface. The four receptacles for the slip control inlet valve are arranged in a row parallel to the lateral surface on which the connections for the wheel brakes are arranged, on the cover surface of the hydraulic block and on the slip control outlet valve. Four other receptacles for are arranged in the second row parallel to said one row on the covering surface of the hydraulic block. The two receptacles for the sluice valve and the two receptacles for the suction valve are respectively symmetrical with respect to the longitudinal center plane of the hydraulic block and for the inlet valve and the outlet valve. It is arranged on the covering surface of a known hydraulic block, offset from the receiving part.

DE 102 60 59 924 A1 specification

The hydraulic block according to the present invention having the structure of claim 1 is provided for a hydraulic unit for slip control of a hydraulic vehicle brake system. The hydraulic block has the shape of a rectangular parallelepiped, and is made of metal in particular. According to the invention, the receptacles for the solenoid valves of the slip control are arranged on the opposite faces of the hydraulic block and the connections for the brake master cylinder and the hydraulic wheel brakes are of the hydraulic block, It is located on one or more surfaces bordering the opposing surfaces with a receptacle for the solenoid valve. The receptacles for the other hydraulic components of the slip control can be essentially any surface of the hydraulic block.

An advantage of the present invention is that the hydraulic block requires fewer holes for its drilling and therefore less cutting costs during its manufacture. Furthermore, it is not necessary to seal the mouth of the hole provided on the surface of the hydraulic block so as to withstand the pressure. As a further advantage, the present invention allows for short suction paths with little or no bends from the connection for the brake master cylinder to the receptacle for the suction valve. As a result, the flow resistance to the brake fluid is reduced, which means that in this very suction path, the hydraulic pump sucks in the brake fluid without pressure from the unoperated brake master cylinder, causing a rapid pressure increase. It is important for slip control to be an advantage or a decisive one. This includes dynamic drive control and automatic braking. A further advantage of the present invention is that the suction line does not have to intersect the receptacle of the slip control hydraulic pump in the hydraulic block.

In Claim 1, the feature "connections for brake master cylinders and hydraulic wheel brakes" means at least one connection for one brake master cylinder and at least one connection for at least one hydraulic wheel brake. It should be understood as meaning the three connections.

The dependent claims are directed to advantageous and further features of the invention according to claim 1.

Preferably, the receptacles for the solenoid valves are respectively arranged in two rows of three on one base and cover surface, and/or two connections for a two-circuit brake master cylinder and hydraulic wheel brakes. Are likewise arranged in three rows of two on the horizontal or vertical side of the hydraulic block. Unusually, the valve dome of the solenoid valve of the slip control projects from two opposite faces rather than from one face of the hydraulic block and/or for brake master cylinders and wheel brakes. All connections are on the same side of the hydraulic block.

Next, the present invention will be described in detail with reference to one embodiment shown in the drawings.

1 is a perspective view of a hydraulic block according to the present invention, in which the hydraulic block is transparent so that a bored portion of the hydraulic block can be seen. The perforations of the hydraulic block are shown incomplete.

The hydraulic block 1 according to the invention shown in the drawing is provided for a hydraulic unit of a slip control of a hydraulic vehicle brake system, which is not otherwise shown. Such slip controls are, for example, anti-block control programs, traction control programs and/or dynamic drive control/electronic stability programs, for which the abbreviations ABS, ASR, FDR/ESP are commonly used. There is. The hydraulic block 1 is a rectangular parallelepiped metal block that is longer than its width and wider than its thickness. The hydraulic block has a rectangular base surface 2, a congruent covering surface 3 facing the base surface, two longitudinal surfaces 4 and two lateral surfaces 5.

The hydraulic block 1 has, on the base surface 2 and the covering surface 3, respectively, six receptacles 7, 8, 9, 10 for a solenoid valve (not shown) of the slip control, more precisely the inlet valve. Two receiving parts 7 for the outlet valve, two receiving parts 8 for the outlet valve, one receiving part 9 for the sluice valve, and one receiving part 10 for the suction valve, respectively. 2 and the covering surface 3. The receiving part 9 for the sluice valve and the receiving part 10 for the suction valve are arranged in the lateral center plane of the hydraulic block 1 and have a receiving part 7 for the inlet valve and a receiving part 8 for the outlet valve. Are arranged laterally outside the receiving part 9 for the sluice valve and the receiving part 10 for the suction valve so as to be mirror-symmetrical with respect to the lateral center plane. In other words, the receiving part 7 for the inlet valve and the receiving part 8 for the outlet valve are located on both sides of the receiving part 9 for the gate valve and the receiving part 10 for the suction valve, respectively. Between the receiving part 9 for the sluice valve and the receiving part 10 for the suction valve and the lateral surface 5 of the hydraulic block 1. These six receptacles 7,8,9,10 for the solenoid valve of the slip control, namely two inlet valves, two outlet valves, one sluice valve and one suction valve are two in three rows. It is arranged on the base surface 2 and the covering surface 3 of the hydraulic block 1 so as to be positioned parallel to the vertical surface 4 of the hydraulic block 1. The receptacles 7, 8, 9, 10 for the solenoid valves are arranged on the base surface 2 and the opposite covering surface 3 of the hydraulic block 1 so as to be coaxially arranged in pairs. The receptacles 7, 8, 9, 10 for the solenoid valves are cylindrical, diametrically stepped settling sections in the hydraulic block 1.

The hydraulic block 1 further comprises two connections 11 for two circuit brake master cylinders not shown and four connections 12 for four hydraulic wheel brakes also not shown. Have The connecting portions 11 and 12 are, for example, tubular sinking portions provided with internal threads for screw connection of the brake pipes, or sinking portions for connecting the brake pipes by caulking without internal threads. The caulking can be performed by using a special nipple by a so-called self-clinching technique, and the material of the hydraulic block 1 is such that when the nipple is press-fitted into the connecting portions 11 and 12, the nipple is mechanically held and is received. It deforms so as to withstand pressure in 11 and 12 and to be sealed. The connection 11 for the brake master cylinder and the connection 12 for the wheel brakes are mounted in one of the two vertical surfaces 4 of the hydraulic block 1, i.e. the base surface 2 And it is arranged in a plane that is in contact with the facing cover plane 3. In the embodiment of the invention shown and described, both connections 11 for the brake master cylinder are mounted in the lateral center plane of the hydraulic block 1 and two connections 12 for each wheel brake are provided. It is mounted between the connecting portion 11 for the brake master cylinder and the lateral surface 5 of the hydraulic block 1 so as to be located on both sides of the connecting portion 11 for the brake master cylinder. The connections 12 for the wheel brakes are in a plane parallel to the lateral center plane and parallel to the transverse plane 5 with the receptacle 7 for the inlet valve and the receptacle 8 for the outlet valve. It is inside.

The hydraulic block 1 has other receptacles for slip control hydraulic components such as piston pumps or other hydraulic pumps, hydraulic reservoirs, damper chambers, pressure sensors and the like. These receptacles are not shown for clarity of the drawing.

A pipe 13 connecting a connection 11 for the brake master cylinder to a receptacle 9 for a gate valve and a receptacle 10 for a suction valve, and a connection 12 for a wheel brake for the inlet valve. The tube 7 which is connected to the receiving part 7 and the receiving part 8 for the outlet valve are mounted in the hydraulic block 1 as straight straight holes without bending. The hydraulic block 1 is formed orthogonally, that is, a plurality of holes are provided perpendicularly or parallel to the surfaces 2, 3, 4, 5 of the hydraulic block and the edges thereof. This embodiment is preferred on the one hand for the formation of the perforations of the hydraulic block 1 and on the other hand allows a low flow resistance. The low flow resistance is particularly important for the suction line connecting the brake master cylinder with the hydraulic pump, ie the pipe 13 connecting the connection 11 for the brake master cylinder with the receiving part 10 for the suction valve. Is important to.

The invention does not exclude other distributions of the receptacles 7, 8, 9, 10 for the solenoid valves of the slip control and the connections 11, 12 for the brake master cylinder and the wheel brakes. It is conceivable to switch the order of the connections 11, 12 for the brake master cylinder and the wheel brakes, for example by connecting the connection 11 for the brake master cylinder between the lateral center plane and the lateral plane 5 of the hydraulic block 1. Two connecting parts 12 for the wheel brake are provided on the lateral center plane of the hydraulic block 1 and two other connecting parts 12 for the wheel brake are provided on the other side of the lateral center plane of the hydraulic block 1. It is conceivable to provide it between the lateral center plane and the other lateral plane 5 (not shown). In this case, the rows of receptacles 7, 8, 9, 10 for the inlet valve, outlet valve, sluice valve and suction valve are also preferably replaced, so that the receptacles 9, 10 for the sluice valve and suction valve are replaced. Is on one side of the lateral center plane, and the receptacle 7 for the inlet valve and the receptacle 8 for the outlet valve are in the lateral center plane and on the other side the lateral center plane of the hydraulic block 1 and the other lateral plane. Between 5 and. It is also conceivable to arrange the connection 11 for the brake master cylinder and the connection 12 for the wheel brakes on the lateral surface 5. In this case, the receptacles 7, 8, 9, 10 for the solenoid valves of the slip control are arranged in the base surface 2 and the covering surface 3 rotated 90° (not shown).

The perforations of the hydraulic block 1 are not shown completely. When equipped with a solenoid valve (not shown), a hydraulic pump, and other hydraulic components of a slip control of a hydraulic vehicle brake device (not shown), the hydraulic block 1 is a core member of the hydraulic portion of the slip control. To form a hydraulic unit. A valve dome (not shown) of the solenoid valve projects from the hydraulic block 1 in a direction opposite to the direction of the base surface 2 and the facing covering surface 3.

1 hydraulic block 2 base surface of hydraulic block 3 cover surface of hydraulic block 4 vertical surface of hydraulic block 5 lateral surface of hydraulic block 7 receptacle for inlet valve 8 receptacle for outlet valve 9 partition Receptor for valve 10 Receptor for suction valve 11 Connection for brake master cylinder 12 Connection for hydraulic wheel brake

Claims (6)

A hydraulic vehicle braking system comprising a receptacle (7,8,9,10) for a solenoid valve for slip control and a connection (11,12) for a brake master cylinder and hydraulic wheel brakes. In a rectangular parallelepiped hydraulic block (1) for the hydraulic unit of the slip control,
The receptacles (7,8,9,10) for the solenoid valves are arranged on two opposite faces (2,3) of the hydraulic block (1), the brake master cylinder and the wheel brakes. The connecting portion (11, 12) for the connection is arranged on at least one surface (4 , 5 ) bordering the facing surfaces (2, 3) of the hydraulic block (1). Characteristic hydraulic block. The receptacles (7, 8, 9, 10) for the solenoid valves are arranged on the base surface (2) and the covering surface (3) of the hydraulic block (1), The hydraulic block according to item 1. The receptacles (7,8,9,10) for the solenoid valves are arranged in the hydraulic block (1) in pairs and coaxially facing each other. Item 3. The hydraulic block according to Item 1 or 2. Of the hydraulic block (1) in which the connections (11, 12) for the brake master cylinder and the wheel brakes are arranged with the receptacles (7, 8, 9, 10) for the solenoid valves. The facing of the hydraulic block (1) in which the receiving parts (7, 8, 9, 10) for the solenoid valves are arranged in two rows parallel to the facing surfaces (2, 3). bounded to the surface (2,3) of each other, characterized in that it is arranged on the surface (4, 5) of the hydraulic block (1), to any one of claims 1 to 3 Hydraulic block as described. A connection (11) for the brake master cylinder arranges the receptacles (7, 8, 9, 10) for the solenoid valve between the connections (12) for the wheel brakes. abuts with said in opposite each other face (2,3) of the hydraulic block (1), characterized in that it is arranged on the surface (4, 5) of the hydraulic block (1), The hydraulic block according to claim 4. At least one surface of the facing surfaces (2, 3) of the hydraulic block (1) is provided with a receiving portion (9, 10) for a sluice valve and/or a suction valve, the hydraulic block (1). A receptacle (7) for the inlet valve and/or a receptacle (8) for the outlet valve, which are arranged in the central plane of the The hydraulic block according to any one of claims 1 to 5, wherein the hydraulic block is arranged in mirror symmetry with respect to the center plane so as to be located on the outer side of the hydraulic block.

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