EP1472125A1 - Hydraulic unit for slip-controlled brake systems - Google Patents
Hydraulic unit for slip-controlled brake systemsInfo
- Publication number
- EP1472125A1 EP1472125A1 EP03734660A EP03734660A EP1472125A1 EP 1472125 A1 EP1472125 A1 EP 1472125A1 EP 03734660 A EP03734660 A EP 03734660A EP 03734660 A EP03734660 A EP 03734660A EP 1472125 A1 EP1472125 A1 EP 1472125A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- receiving
- receiving bore
- row
- bore
- 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- Withdrawn
Links
- 238000003860 storage Methods 0.000 claims description 25
- 238000013016 damping Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0832—Modular valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/3675—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
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0807—Manifolds
- F15B13/0814—Monoblock manifolds
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0846—Electrical details
- F15B13/086—Sensing means, e.g. pressure sensors
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0871—Channels for fluid
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0878—Assembly of modular units
- F15B13/0885—Assembly of modular units using valves combined with other components
- F15B13/0889—Valves combined with electrical components
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0878—Assembly of modular units
- F15B13/0885—Assembly of modular units using valves combined with other components
- F15B13/0892—Valves combined with fluid components
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0878—Assembly of modular units
- F15B13/0896—Assembly of modular units using different types or sizes of valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S303/00—Fluid-pressure and analogous brake systems
- Y10S303/10—Valve block integrating pump, valves, solenoid, accumulator
Definitions
- the invention relates to a hydraulic unit for slip-controlled brake systems according to the preamble of claim 1.
- a hydraulic unit for a slip-controlled brake system has already become known, with a block-shaped receiving body, which contains a total of eight valve receiving bores next to one another in a first and second row of valves, in which electromagnetically actuated inlet and outlet valves are used.
- the reservoir mounting holes are arranged transversely to the valve mounting holes directly next to the second valve row having the outlet valve, while the pump mounting hole extends parallel to the two valve rows.
- a motor mounting hole is arranged in the middle between the two valve rows and extends into the pump mounting hole parallel to the axis of the valve mounting holes.
- the hydraulic unit presented is only suitable for slip-free brake operation and for use in brake slip control. It is therefore the object of the present invention to improve a hydraulic unit of the type specified with simple means in such a way that an expansion to traction control and driving dynamics control is possible while maintaining the described arrangement of the valve, pump and storage mounting bores in the mounting body.
- a third row of valves which opens into the first housing surface of the receiving body between the housing level provided for the brake pressure sensor connections and the housing level provided for the first valve series.
- the third valve row which is thus arranged directly next to the first valve row, ensures a simple functional expansion of the hydraulic unit designed for blocking pressure control for the purpose of traction control or driving dynamics control, for which purpose closed solenoid valves in the basic position, which are designed as electrical changeover valves, are used as electrical switchover valves.
- closed solenoid valves in the basic position which are designed as electrical changeover valves, are used as electrical switchover valves.
- open isolating valves in the form of solenoid valves are used in the two valve receiving holes between the third valve row.
- Show it: 1 is a three-dimensional representation of an overall view of the subject matter of the invention to illustrate all receiving bores and pressure medium channels in the receiving body,
- FIG. 2 shows a detailed view from FIG. 1 to explain the channel connections between the valve receiving bores arranged in the third and first row of valves with the pump receiving bore, and the connection of the storage receiving bore to the pump and valve receiving bores of the second row of valves,
- FIG. 3 shows a further detailed view from FIG. 1 to explain the channels of the first and second valve rows leading to the wheel and pressure sensor connections
- FIG. 4 shows a detailed view from FIG. 1 to explain the pressure medium return existing between the first and second row of valves and the reservoir receiving bores.
- FIG. 5 shows a further detailed view from FIG. 1 with a brake pressure transmitter and isolating valve connection that has been changed compared to FIG. 1, in each case on the valve receiving bore receiving the electrical changeover valve.
- FIG. 1 shows a perspective view of a hydraulic unit for slip-controlled brake systems, with a receiving body 1, which is in four valve receiving bores XI- X4, Y1-Y4 of a first and second row of valves X, Y receives inlet and outlet valves which open as blind holes in a first housing surface AI of the receiving body, which is located at right angles to a second housing surface A2, into which a plurality of brake pressure transmitter and wheel brake connections Bl, Open B2, Rl, R3.
- the block-shaped receiving body 1 is also penetrated by a pump receiving bore 5, which is directed transversely to the opening direction of the valve receiving bores XI-X4, Y1-Y4 in the receiving body 1.
- the pump receiving bore 5 is arranged between the axes of the valve receiving bores X1-X4, Y1-Y4 of the first and second valve rows X, Y, which are oriented vertically to the first housing surface AI.
- a motor mounting bore 13 is directed onto the pump mounting bore 5 at a vertical distance from the first housing surface AI, which not only serves to fasten an electric motor that actuates the pump pistons in the pump mounting bore 5, but also contains a crank or eccentric drive.
- Spring-loaded pistons are inserted into the storage bore holes 9.
- the depth of the storage receptacle bores 9 is dimensioned to be smaller than the horizontal distance of the second row of valves Y from the third housing surface A3, so that the connection of the third row of valves Y with the storage receptacle bores 9 takes place via several return channels 10.
- valve mounting holes Y1-Y4 of the second valve row Y are arranged electromagnetically actuated exhaust valves which are normally closed in the normal position.
- the vertical axes of the valve mounting holes Y1-Y4 of the second row of valves Y extend between the two storage mounting holes 9 and the pump mounting hole 5 in the mounting body 1.
- a third valve row Z is arranged in the receiving body 1, which receives an electric changeover valve which is closed in the basic position for each brake circuit in a valve receiving bore ZI or Z4, the hydraulic connection of the valve receiving bore ZI or Z4 being made to the pump receiving bore 5 via a section of an intake duct 6 which crosses the first row of valves X for connection to the pump receiving bore 5.
- each brake circuit there is also at least one further valve receiving bore in the third valve row Z Z2 or Z3, into which an electromagnetically actuated isolating valve is opened in the basic position, the further valve receiving bore Z2 or Z3 via a short channel 3, which is preferably designed as an oblique channel, with the valve receiving bore ZI or Z4 having the changeover valve connected is.
- valve receiving bore Z2 or Z3 having the isolating valve is each connected to an inlet channel 4 leading to the first valve row X, which in the first valve row X opens into the bottom of a valve receiving bore X2 designed as a blind bore, which opens an electromagnetically actuated, normally open in the basic position Intake valve.
- the inlet channel 4 of each brake circuit continues along the first row of valves X in the direction of a noise damper 7 which opens axially parallel to the pump receiving bore 5 in a fourth housing surface A4 in the form of a short blind bore.
- the pump receiving bore 5 extends through the fourth housing surface to the opposite housing surface of the receiving body 1.
- a pressure channel 8 crosses the pump receiving bore 5 in the direction of the noise damping chambers 7, for which purpose the pressure channel 8 is preferably designed as an oblique channel. which opens radially into the blind bore provided for the noise damping chambers 7.
- At least one return duct 10 opens into the bottom of the storage-receiving bore 9, which is connected to the valve-receiving bores Yl, Y2 or Y3, Y4, which are arranged somewhat lower to the storage-receiving bore 9 in the receiving body 1.
- the second row of valves Y is thus in the immediate vicinity of the storage-receiving bore (9), so that the shortest possible return channels 10 and short suction channels 6 lead to the storage-receiving bores 9, which improves the evacuation, the filling and the performance of the pump.
- each valve receiving bore Y1, Y2 or Y3, Y4 of the second valve row Y is designed as a blind hole that is as short as possible.
- Each bottom of the valve receiving bores Y1-Y2 is each connected to a section of a return duct 10 leading to the storage receiving bore 9.
- Each return channel 10 is an angled channel laterally for short section of the intake duct 6 arranged.
- valve receiving bores Y1-Y4 are penetrated by the wheel pressure channels 11, each of which radially or tangentially through the valve receiving bores Yl, Y2 or Y3, Y4 arranged in the second row of valves (Y) continue to the valve mounting holes XI, X2 or X3, X4 in the first valve row X.
- the wheel pressure channels 11 lead past the third valve row Z to the wheel brake connections Rl, R2 or R3, R4.
- a further section of the wheel pressure channels 11 continues radially or tangentially through the valve mounting holes Y1, Y2 and Y3, Y4 arranged in the second valve row Y below the storage mounting holes 9 to the third housing surface A3, where in each case at the end section of each wheel pressure channel 11 for detecting the brake pressures present at the four wheel brake connections R1-R4, a pressure sensor receiving bore W1-W4 is connected.
- FIG. 3 shows a particularly clear representation of all wheel pressure channels 11 and pressure sensor receiving bores W1, W2, W3, W4, which are arranged in the horizontal plane of the first and second valve rows X, Y.
- the extremely compact arrangement of all channels and receiving bores in the receiving body 1 allows, if necessary, the integration of a blind hole for each brake circuit for receiving a pump suction damper 12 in addition to the valve receiving bore ZI provided for the switching valve, for which purpose the blind hole via a suction damper channel 2 with the valve receiving bore receiving the switching valve ZI connected is (see Figures 1 and 5).
- two brake pressure transmitter connections B1, B2 and the two wheel brake connections R1, R3 open into the second housing surface A2. Since it is a brake system for a multi-lane motor vehicle that is braked on four wheels, two further wheel brake connections R2, R4 are located, for example, on the top of the receiving body 1. Depending on the mounting or installation conditions, the wheel brake connections R2, R4 can of course also be be arranged in the second housing surface A2.
- the first brake circuit is thus assigned the brake pressure transmitter connection Bl, which is normally connected to the wheel brake connections Rl, R2 via the valve mounting holes ZI, Z2 in the third valve row Z and the valve mounting holes XI, X2 in the first valve row X.
- the brake pressure transmitter connection Bl which is normally connected to the wheel brake connections Rl, R2 via the valve mounting holes ZI, Z2 in the third valve row Z and the valve mounting holes XI, X2 in the first valve row X.
- the separating valve used in the valve receiving bore Z2 of the third valve row Z is closed electromagnetically for traction control and driving dynamics control, and the changeover valve arranged in the valve receiving bore ZI is opened, so that pressure medium Bl flows in via the brake pressure transmitter connection Bl opening laterally into the valve receiving bore ZI reaches the first section of the intake duct 6, which is arranged at the bottom of the valve receiving bore ZI, and which is thus by the shortest route (bypassing the first and second valve series X, Y) creates a direct connection to the pump mounting hole 5.
- the pump piston used in the pump receiving bore 5 then conveys pressure medium into the pressure channel 8 via the pump pressure valve used in the pump receiving bore 5 and from there via the already mentioned inlet channel 4 to the valve receiving bores XI, X2, which depending on the pressure control cycle present either from the inlet valves in the direction of Wheel brake connections Rl, R2 are open or closed.
- the selected position of the third row of valves Z advantageously results in a particularly short, low-resistance intake duct 6 for each brake circuit between the brake pressure transmitter connection Bl or B2 and the associated pump receiving bore 5.
- the intake duct 6 can thus be vented and filled quickly and easily.
- the pressure medium can be sucked in quickly and reliably via the brake pressure transmitter connection Bl or B2 in the shortest way by means of a piston pump in the pump receiving bore 5.
- FIG. 2 shows a detailed view from FIG. 1 to explain the connections between the valve receiving bores Z2, Z3 arranged in the third and first valve row Z, X via the inlet channel 4 with the pump receiving bore 5 for each brake circuit, as a result of which the pressure medium delivered by the pump either via the inlet valves open in the first valve row X to the wheel pressure channels 11 and thus to the wheel brake connections R1, R2 (see FIG. 3), or in the closed position of the inlet valves via the inlet channel 4 connecting the first valve row X to the third valve row Z Isolating valve in valve receiving bore Z2.
- the pump pressure thus acts in the previously explained closed position of the inlet valve via channel 3 connected laterally to the valve receiving bore Z3 into the valve receiving bore ZI and to the brake pressure transmitter connection Bl (see also FIG. 1).
- the section of the inlet channel 4 which runs transversely to the third and the first row of valves Z, X is made in manufacturing terms from the second housing surface A2 as a blind hole by means of a simple drilling operation above the valve receiving bores Z2, X2.
- the actual connection of this channel section running transverse to the valve rows X, Z then comes through in each case a drilling operation directed from the first housing surface AI into the valve receiving bores Z2, X2 takes place, which penetrates the bottoms of the valve receiving bores Z2, X2 in the direction of the channel section of the inlet channel 4 above it and cuts the channel section.
- the section of the inlet duct 4 which runs horizontally above along the first valve row X is produced from the fourth housing surface A4 by means of a drilling operation which cuts the inlet duct 4.
- the connection of the outer valve receiving bore XI with the horizontal section of the inlet channel 4 is then carried out by a drilling process directed vertically from the first housing surface AI through the valve receiving bore XI, unless a direct cut of the bottoms of the valve receiving holes XI during the horizontal drilling operation for the production of the inlet channel 4 , X2 is provided.
- the horizontal section of the inlet duct 4 opens into a noise damping chamber 7 which is arranged in the region of the fourth housing surface A4 and which is connected via a pressure duct 8 to the pressure side of the pump receiving bore 5.
- the pressure channel 8 is produced by means of a bore directed obliquely from above into the receiving body 1, which penetrates the outer end region of the pump receiving bore 5 up to the cut of the noise damping chamber 7. Both the noise damping chamber 7 and the oblique junction of the pressure channel 8 are sealed off from the outside by means of plugs.
- FIG. 3 shows a section of the receiving body 1 in the area of the first and second row of valves X, Y with the wheel connections R1-R4 and the pressure sensor receiving bores W1-W4 connecting sections of the wheel pressure channels 11.
- the four wheel pressure channels 11 required for the wheel brakes are directed parallel from one another from the third housing surface A3 onto the valve receiving bores X1-X4, Y1-Y4 arranged parallel to one another.
- the required drilling tool completely penetrates the valve mounting holes of the second valve row Y and cuts the walls of the valve mounting holes in the first valve mounting hole X.
- connection of the wheel brake connections R1-R4 with the valve receiving bores in the first valve row X takes place via the last section of the wheel pressure channels 11, depending on the position of the wheel brake connections R1-R4.
- an oblique or transverse bore may also be appropriate for this purpose.
- the ends of the wheel pressure channels 11 are tightly closed in the third housing surface A3, while the pressure sensor receiving bores W1-W4 arranged in parallel, directly next to the second valve row Y in a fourth row of holes W are closed by means of suitable sensors, which, like the valves in the valve rows in FIG Usually protrude from the first housing surface AI.
- each valve receiving bore of the second valve row Y via the return channels 10 to the storage receiving bores 9, which are located above the row of holes W is shown.
- the continuation of each return channel 10 takes place as an angular channel, which comes about through the meeting of a horizontal and vertical drilling operation, for which purpose a drilling process is directed into the respective valve receiving bore of the second row of valves Y and into the bottom of the storage receiving bore.
- all vertical connections of the inlet channels 4 to the bottoms of the four valve mounting holes are stanchions X1-X4 in the first row of valves X as well as the wheel pressure channels 11 opening out at the circumference of the valve receiving bores X1-X4.
- FIG. 5 shows a further detailed view of the subject matter of the invention with a brake pressure transmitter and isolating valve connection that has been changed compared to FIG. 1, on the valve receiving bore ZI receiving the electrical changeover valve.
- the channel of the brake pressure transducer connection Bl or B2 now opens into the second housing surface A2 in an elevated position, so that it is continued linearly above the bottom of the valve mounting bore ZI to the mounting bore of the pump suction damper 12. Consequently, the first section of the intake duct 6 now connects to the wall of the valve receiving bore ZI below the floor. Due to the swapping of the channel connections compared to FIG. 1, the valve receiving bore ZI and thus also the changeover valve can be flowed through in reverse.
- the channel 3 in FIG. 5 is guided as an oblique channel directly from the first housing surface AI through the valve receiving bore Z2 to the connection point of the brake pressure transmitter connection Bl or B2 to the bottom of the valve receiving bore ZI.
- a further pressure sensor connection 14 is arranged in FIG. 5 between the two storage receiving bores 9, which is connected to the receiving bore of the pump suction damper 12 via a pressure measuring channel crossing the pump receiving bore 5 at an angle, whereby the pressure present at the brake pressure transmitter connection B2 is detected by means of a suitable sensor system leaves.
- FIG. 5 With regard to the further details depicted in FIG. 5, reference is made to the preceding explanations of the FIGS. guren 1-4 referenced.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Transportation (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to a hydraulic unit which, a third row of valves (Z) is disposed in the receiving body (1) between a first row of valves (X) carrying the receiving bores (X1-X4) for the inlet valves and the second housing surface (A2). Said third row of valves (Z), in at least one valve receiving bore (Z1) has an electrical switching valve that is closed in the initial position. Said switching valve is hydraulically linked with the pump receiving bore (5) via a section of the suction channel (6) which traverses the first row of valves (X) and is linked with the pump receiving bore (5).
Description
Hydraulikaggregat für schlupfgeregelte BremsanlagenHydraulic unit for slip-controlled brake systems
Die Erfindung betrifft ein Hydraulikaggregat für schlupfgeregelte Bremsanlagen nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a hydraulic unit for slip-controlled brake systems according to the preamble of claim 1.
Aus der DE 42 34 013 AI ist bereits ein Hydraulikaggregat für eine schlupfgeregelte Bremsanlage bekannt geworden, mit einem blockförmigen Aufnahmekörper, der nebeneinander in einer ersten und zweiten Ventilreihe insgesamt acht Ventilaufnahmebohrungen beinhaltet, in denen elektromagnetisch betätigbare Einlass- und Auslassventile eingesetzt sind. Zwischen den beiden Ventilreihen befindet sich eine Pumpenaufnahmebohrung und außerhalb zu den Ventilreihen sind zwei parallele Speicheraufnahmebohrungen angeordnet. Die Speicheraufnahmebohrungen sind quer zu den Ventilaufnahmebohrungen unmittelbar neben der die Auslassventil aufweisenden zweiten Ventilreih angeordnet, während sich die Pumpenaufnahmebohrung parallel zu den beiden Ventilreihen erstreckt. Zwischen den beiden Ventilreihen ist mittig eine Motoraufnahmebohrung angeordnet, die sich achsparallel zu den Ventilaufnahmebohrungen in die Pumpenaufnahmebohrung erstreckt.From DE 42 34 013 AI, a hydraulic unit for a slip-controlled brake system has already become known, with a block-shaped receiving body, which contains a total of eight valve receiving bores next to one another in a first and second row of valves, in which electromagnetically actuated inlet and outlet valves are used. There is a pump receiving bore between the two valve rows and two parallel storage receiving bores are arranged outside the valve rows. The reservoir mounting holes are arranged transversely to the valve mounting holes directly next to the second valve row having the outlet valve, while the pump mounting hole extends parallel to the two valve rows. A motor mounting hole is arranged in the middle between the two valve rows and extends into the pump mounting hole parallel to the axis of the valve mounting holes.
Das vorgestellte Hydraulikaggregat ist ausschließlich für einen schlupffreien Bremsenbetrieb als auch für einen Einsatz zur Bremsschlupfregelung geeignet.
Daher ist es die Aufgabe der vorliegenden Erfindung, ein Hydraulikaggregat der angegebenen Art mit einfachen Mitteln derart zu verbessern, dass unter Beibehaltung der beschriebenen Anordnung der Ventil-, Pumpen- und Speicheraufnahmebohrungen im Aufnahmekörper eine Erweiterung auf Antriebschlupf- und Fahrdynamikregelung möglich ist.The hydraulic unit presented is only suitable for slip-free brake operation and for use in brake slip control. It is therefore the object of the present invention to improve a hydraulic unit of the type specified with simple means in such a way that an expansion to traction control and driving dynamics control is possible while maintaining the described arrangement of the valve, pump and storage mounting bores in the mounting body.
Diese Aufgabe wird erfindungsgemäß für ein Hydraulikaggregat der eingangs genannten Gattung durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst.This object is achieved according to the invention for a hydraulic unit of the type mentioned by the characterizing features of patent claim 1.
Erfindungsgemäß ist daher eine dritte Ventilreihe vorgesehen, die zwischen der für die Bremsdruckgeberanschlüsse vorgesehenen Gehäuseebene und der für die erste Ventilreihe vorgesehenen Gehäuseebene in die erste Gehäusefläche des Aufnahmekörpers einmündet. Die somit unmittelbar neben der ersten Ventilreihe angeordnete dritte Ventilreihe gewährleistet eine einfache funktioneile Erweiterung des für Blockierdruckregelung ausgelegten Hydraulikaggregats zum Zwecke einer Antriebsschlupf- bzw. Fahrdynamikregelung, wozu in den beiden äußeren Ventilaufnahmebohrungen der dritten Ventilreihe als elektrische Umschaltventile ausgeführte, in Grundstellung geschlossene Magnetventile eingesetzt sind. In den beiden dazwischenliegenden Ventilaufnahmebohrungen der dritten Ventilreihe werden in Grundstellung geöffnete Trennventile in Form von Magnetventilen eingesetzt.According to the invention, therefore, a third row of valves is provided, which opens into the first housing surface of the receiving body between the housing level provided for the brake pressure sensor connections and the housing level provided for the first valve series. The third valve row, which is thus arranged directly next to the first valve row, ensures a simple functional expansion of the hydraulic unit designed for blocking pressure control for the purpose of traction control or driving dynamics control, for which purpose closed solenoid valves in the basic position, which are designed as electrical changeover valves, are used as electrical switchover valves. In the basic position, open isolating valves in the form of solenoid valves are used in the two valve receiving holes between the third valve row.
Weitere Merkmale, Vorteile und Anwendungsmöglichkeiten der Erfindung gehen im Folgenden aus der Beschreibung mehrerer Ausführungsbeispiele anhand von Zeichnungen hervor.Further features, advantages and possible uses of the invention will become apparent from the description of several exemplary embodiments with reference to drawings.
Es zeigen:
Fig. 1 eine dreidimensionale Darstellung einer Gesamtansicht des Erfindungsgegenstandes zur Verdeutlichung aller Aufnahmebohrungen und Druckmittelkanäle im Aufnahmekörper,Show it: 1 is a three-dimensional representation of an overall view of the subject matter of the invention to illustrate all receiving bores and pressure medium channels in the receiving body,
Fig. 2 eine Detailansicht aus Fig. 1 zur Erläuterung der Kanalverbindungen zwischen den in der dritten und ersten Ventilreihe angeordneten Ventilaufnahmebohrungen mit der Pumpenaufnahmebohrung, sowie den Anschluss der Speicheraufnahmebohrung an die Pumpen- und Ventilaufnahmebohrungen der zweiten Ventilreihe,2 shows a detailed view from FIG. 1 to explain the channel connections between the valve receiving bores arranged in the third and first row of valves with the pump receiving bore, and the connection of the storage receiving bore to the pump and valve receiving bores of the second row of valves,
Fig. 3 eine weitere Detailansicht aus Fig. 1 zur Erläuterung der zu den Rad- und zu den Drucksensoranschlüssen führenden Kanälen der ersten und zweiten Ventilreihe,3 shows a further detailed view from FIG. 1 to explain the channels of the first and second valve rows leading to the wheel and pressure sensor connections,
Fig. 4 eine Detailansicht aus Fig. 1 zur Erläuterung des zwischen der ersten und zweiten Ventilreihe und den Speicheraufnahmebohrungen bestehenden Druckmittelrücklaufs .FIG. 4 shows a detailed view from FIG. 1 to explain the pressure medium return existing between the first and second row of valves and the reservoir receiving bores.
Fig. 5 eine weitere Detailansicht aus Fig. 1 mit einem gegenüber der Figur 1 geänderten Bremsdruckgeberund Trennventilanschluss jeweils an der das elektrische Umschaltventil aufnehmenden Ventilaufnahmebohrung.FIG. 5 shows a further detailed view from FIG. 1 with a brake pressure transmitter and isolating valve connection that has been changed compared to FIG. 1, in each case on the valve receiving bore receiving the electrical changeover valve.
Die Figur 1 zeigt in Perspektivdarstellung ein Hydraulikaggregat für schlupfgeregelte Bremsanlagen, mit einem Aufnahmekörper 1, der in jeweils vier Ventilaufnahmebohrungen XI-
X4, Y1-Y4 einer ersten und zweiten Ventilreihe X, Y Ein- und Auslassventile aufnimmt, die als Sacklöcher in eine erste Gehäusefläche AI des Aufnahmekörpers einmünden, welche rechtwinklig zu einer zweiten Gehäusefläche A2 gelegen ist, in die mehrere Bremsdruckgeber- und Radbremsanschlüsse Bl, B2, Rl, R3 einmünden. Der blockförmige Aufnahmekörper 1 ist ferner von einer Pumpenaufnahmebohrung 5 durchdrungen, die quer zur Einmündungsrichtung der Ventilaufnahmebohrungen XI- X4, Y1-Y4 in den Aufnahmekörper 1 gerichtet ist. Die Pumpenaufnahmebohrung 5 ist zwischen den vertikal zur ersten Gehäusefläche AI ausgerichteten Achsen der Ventilaufnahmebohrungen X1-X4, Y1-Y4 der ersten und zweiten Ventilreihe X, Y angeordnet. Auf die Pumpenaufnahmebohrung 5 ist in einem lotrechten Abstand zur ersten Gehäusefläche AI eine Motoraufnahmebohrung 13 gerichtet, die nicht nur zur Befestigung eines die Pumpkolben in der Pumpenaufnahmebohrung 5 betätigenden Elektromotors dient, sondern auch einen Kurbel- bzw. Exzenterantrieb beinhaltet.FIG. 1 shows a perspective view of a hydraulic unit for slip-controlled brake systems, with a receiving body 1, which is in four valve receiving bores XI- X4, Y1-Y4 of a first and second row of valves X, Y receives inlet and outlet valves which open as blind holes in a first housing surface AI of the receiving body, which is located at right angles to a second housing surface A2, into which a plurality of brake pressure transmitter and wheel brake connections Bl, Open B2, Rl, R3. The block-shaped receiving body 1 is also penetrated by a pump receiving bore 5, which is directed transversely to the opening direction of the valve receiving bores XI-X4, Y1-Y4 in the receiving body 1. The pump receiving bore 5 is arranged between the axes of the valve receiving bores X1-X4, Y1-Y4 of the first and second valve rows X, Y, which are oriented vertically to the first housing surface AI. A motor mounting bore 13 is directed onto the pump mounting bore 5 at a vertical distance from the first housing surface AI, which not only serves to fasten an electric motor that actuates the pump pistons in the pump mounting bore 5, but also contains a crank or eccentric drive.
In den Aufnahmekörper 1 münden in eine dritte Gehäusefläche A3, die der zweiten Gehäusefläche A2 parallel entgegengelegen ist, zwei parallel nebeneinander angeordnete Speicheraufnahmebohrung 9 ein, die quer zu den Achsen der Ventilaufnahmebohrungen Y1-Y4 der zweiten Ventilreihe Y ausgerichtet sind. In die Speicheraufnahmebohrungen 9 sind federbeaufschlagte Kolben eingesetzt. Die Tiefe der Speicheraufnahmebohrungen 9 ist kleiner bemessen als der Horizontalabstand der zweiten Ventilreihe Y von der dritten Gehäusefläche A3, so dass die Verbindung der dritten Ventilreihe Y mit den Speicheraufnahmebohrungen 9 über mehrere Rücklaufkanäle 10 erfolgt.In the receptacle body 1, a third housing surface A3, which is opposite the second housing surface A2 in parallel, opens into two parallel storage receiving bore 9, which are aligned transversely to the axes of the valve receiving bores Y1-Y4 of the second valve row Y. Spring-loaded pistons are inserted into the storage bore holes 9. The depth of the storage receptacle bores 9 is dimensioned to be smaller than the horizontal distance of the second row of valves Y from the third housing surface A3, so that the connection of the third row of valves Y with the storage receptacle bores 9 takes place via several return channels 10.
In den Ventilaufnahmebohrungen Y1-Y4 der zweiten Ventilreihe
Y sind elektromagnetisch betätigbare, in der Grundstellung stromlos geschlossene Auslassventile angeordnet. Die vertikalen Achsen der Ventilaufnahmebohrungen Y1-Y4 der zweiten Ventilreihe Y erstrecken sich zwischen den beiden Speicheraufnahmebohrungen 9 und der Pumpenaufnahmebohrung 5 in den Aufnahmekörper 1.In the valve mounting holes Y1-Y4 of the second valve row Y are arranged electromagnetically actuated exhaust valves which are normally closed in the normal position. The vertical axes of the valve mounting holes Y1-Y4 of the second row of valves Y extend between the two storage mounting holes 9 and the pump mounting hole 5 in the mounting body 1.
Um eine hydraulische Verbindung zwischen einem Bremsdruckge- beranschluss Bl bzw. B2 und den Radbremsanschlüssen Rl, R2 des ersten Bremskreises bzw. mit den Radbremsanschlüssen R3, R4 herzustellen, bedarf es mehrerer die Ventil-, Pumpen- und Speicheraufnahmebohrungen verbindender Kanäle, die ebenso wie die Ventil-, Speicher- und Pumpenaufnahmebohrungen im Wesentlichen durch geschickte Bohroperationen innerhalb des Aufnahmekörpers 1 hergestellt sind.In order to establish a hydraulic connection between a brake pressure transmitter connection Bl or B2 and the wheel brake connections Rl, R2 of the first brake circuit or with the wheel brake connections R3, R4, several channels connecting the valve, pump and accumulator bores are required, which, like that Valve, storage and pump receiving bores are essentially produced by skillful drilling operations within the receiving body 1.
Um mit Blick auf die gestellte Aufgabe der Erfindung die ursprüngliche Bearbeitung des Aufnahmekörpers 1 möglichst unverändert und damit einfach zu gestalten, wird daher vorgeschlagen, dass am besten zwischen der ersten, die Ventilaufnahmebohrungen X1-X4 für die Einlassventile aufweisenden Ventilreihe X und der zweiten Gehäusefläche A2 eine dritte Ventilreihe Z im Aufnahmekörper 1 angeordnet wird, die für jeden Bremskreis in einer Ventilaufnahmebohrung ZI bzw. Z4 ein in Grundstellung geschlossenes elektrisches Umschaltventil aufnimmt, wobei die hydraulische Verbindung der Ventilaufnahmebohrung ZI bzw. Z4 mit der Pumpenaufnahmebohrung 5 über einen Abschnitt eines Ansaugkanals 6 erfolgt, welcher die erste Ventilreihe X zum Anschluss an die Pumpenaufnahmebohrung 5 überquert.In order to make the original machining of the receiving body 1 as unchanged as possible and thus simple, with a view to the object of the invention, it is therefore suggested that the best between the first valve row bores X1-X4 for the inlet valves and the second valve row A2 A third valve row Z is arranged in the receiving body 1, which receives an electric changeover valve which is closed in the basic position for each brake circuit in a valve receiving bore ZI or Z4, the hydraulic connection of the valve receiving bore ZI or Z4 being made to the pump receiving bore 5 via a section of an intake duct 6 which crosses the first row of valves X for connection to the pump receiving bore 5.
Für jeden Bremskreis befindet sich außerdem in der dritten Ventilreihe Z wenigstens eine weitere Ventilaufnahmebohrung
Z2 bzw. Z3, in die ein elektromagnetisch betätigbares, in Grundstellung stromlos geöffnetes Trennventil eingesetzt ist, wobei die weitere Ventilaufnahmebohrung Z2 bzw. Z3 über einen kurzen Kanal 3, der vorzugsweise als Schrägkanal ausgeführt ist, mit der das Umschaltventil aufweisenden Ventilaufnahmebohrung ZI bzw. Z4 verbunden ist.For each brake circuit, there is also at least one further valve receiving bore in the third valve row Z Z2 or Z3, into which an electromagnetically actuated isolating valve is opened in the basic position, the further valve receiving bore Z2 or Z3 via a short channel 3, which is preferably designed as an oblique channel, with the valve receiving bore ZI or Z4 having the changeover valve connected is.
Weiterhin ist die das Trennventil aufweisende Ventilaufnahmebohrung Z2 bzw. Z3 jeweils an einem zur ersten Ventilreihe X führenden Einlasskanal 4 angeschlossen, der in der ersten Ventilreihe X jeweils in den Boden einer als Sackbohrung ausgeführten Ventilaufnahmebohrung X2 einmündet, die ein elektromagnetisch betätigbares, in Grundstellung stromlos geöffnetes Einlassventil aufnimmt. Der Einlasskanal 4 eines jeden Bremskreises setzt sich entlang der ersten Ventilreihe X in Richtung auf eine Geräuschdämpfungska mer 7 fort, die unmittelbar achsparallel neben der Pumpenaufnahmebohrung 5 in eine vierte Gehäusefläche A4 in Form eines kurzen Sackbohrung einmündet. Hingegen erstreckt sich die Pumpenaufnahmebohrung 5 hindurch der vierten Gehäusefläche bis zur gegenüberliegenden Gehäusefläche des Aufnahmekörpers 1. An den äußeren Enden der Pumpenaufnahmebohrung 5 durchquert jeweils ein Druckkanal 8 die Pumpenaufnahmebohrung 5 in Richtung auf die Geräuschdämpfungskammern 7, wozu der Druckkanal 8 vorzugsweise als Schrägkanal ausgeführt ist, der radial in die für die Geräuschdämpfungskammern 7 vorgesehenen Sackbohrung einmündet .Furthermore, the valve receiving bore Z2 or Z3 having the isolating valve is each connected to an inlet channel 4 leading to the first valve row X, which in the first valve row X opens into the bottom of a valve receiving bore X2 designed as a blind bore, which opens an electromagnetically actuated, normally open in the basic position Intake valve. The inlet channel 4 of each brake circuit continues along the first row of valves X in the direction of a noise damper 7 which opens axially parallel to the pump receiving bore 5 in a fourth housing surface A4 in the form of a short blind bore. In contrast, the pump receiving bore 5 extends through the fourth housing surface to the opposite housing surface of the receiving body 1. At the outer ends of the pump receiving bore 5, a pressure channel 8 crosses the pump receiving bore 5 in the direction of the noise damping chambers 7, for which purpose the pressure channel 8 is preferably designed as an oblique channel. which opens radially into the blind bore provided for the noise damping chambers 7.
Bezüglich den bisher anhand der Figur 1 erläuterten Einzelheiten wird überdies auf die Darstellung in Figur 2 hingewiesen, soweit die beschriebenen Einzelheiten nicht ohne weiteres aus Figur 1 hervorgehen.
Der jeweils von den äußeren Enden der Pumpenaufnahmebohrung 5 abgewandte, in Nähe der Motoraufnahmebohrung 13 gelegene Bohrungsabschnitt der Pumpe ist zu jeder Speicheraufnahmebohrung 9 hin vom Ansaugkanal 6 durchdrungen, der in den Boden der Speicheraufnahmebohrung 9 einmündet. In dem kurzen Abschnitt des Ansaugkanals 6, der zwischen der Pumpenaufnahmebohrung 5 und der Speicheraufnahmebohrung 9 gelegen ist, befindet sich außerdem ein in der Richtung der Pumpenaufnahmebohrung 5 öffnendes Rückschlagventil, so dass in jedem Bremskreis ein vom Bremsdruckgeberanschluss Bl bzw. B2 über das elektrische Umschaltventil in den ersten Abschnitt des Ansaugkanals 6 einströmendes Druckmittel ausschließlich zur Saugseite der in der Pumpenaufnahmebohrung 5 angeordneten Pumpe gelangt .With regard to the details previously explained with reference to FIG. 1, reference is also made to the illustration in FIG. 2, insofar as the details described are not readily apparent from FIG. 1. The bore section of the pump facing away from the outer ends of the pump receiving bore 5 and located in the vicinity of the motor receiving bore 13 is penetrated to each storage receiving bore 9 by the suction channel 6, which opens into the bottom of the storage receiving bore 9. In the short section of the intake duct 6, which is located between the pump receiving bore 5 and the storage receiving bore 9, there is also a non-return valve opening in the direction of the pump receiving bore 5, so that in each brake circuit one of the brake pressure transmitter connection Bl or B2 via the electrical changeover valve in The pressure medium flowing into the first section of the intake duct 6 only reaches the suction side of the pump arranged in the pump receiving bore 5.
Außer dem kurzen Abschnitt des Ansaugkanals 6 mündet in den Boden der Speicheraufnahmebohrung 9 wenigstens ein Rücklaufkanal 10 ein, welcher mit den die Auslassventile aufnehmenden Ventilaufnahmebohrungen Yl, Y2 bzw. Y3, Y4 verbunden ist, die etwas tiefer zur Speicheraufnahmebohrung 9 im Aufnahmekörper 1 angeordnet sind. Die zweite Ventilreihe Y befindet sich somit in unmittelbarer Nähe zur Speicheraufnahmebohrung (9), so dass möglichst kurze Rücklaufkanäle 10 und kurze Ansaugkanäle 6 zu den Speicheraufnahmebohrungen 9 führen, wodurch sich die Evakuierung, die Befüllung und die Leistungsfähigkeit der Pumpe verbessert.In addition to the short section of the intake duct 6, at least one return duct 10 opens into the bottom of the storage-receiving bore 9, which is connected to the valve-receiving bores Yl, Y2 or Y3, Y4, which are arranged somewhat lower to the storage-receiving bore 9 in the receiving body 1. The second row of valves Y is thus in the immediate vicinity of the storage-receiving bore (9), so that the shortest possible return channels 10 and short suction channels 6 lead to the storage-receiving bores 9, which improves the evacuation, the filling and the performance of the pump.
In vorliegendem Beispiel ist jede Ventilaufnahmebohrung Yl, Y2 bzw Y3, Y4 der zweiten Ventilreihe Y als möglichst kurzes Sackloch ausgeführt. Jeder Boden der Ventilaufnahmebohrungen Y1-Y2 ist jeweils mit einem zur Speicheraufnahmebohrung 9 führende Abschnitt eines Rücklaufkanals 10 verbunden. Jeder Rücklaufkanal 10 ist als Winkelkanal seitlich zum kurzen Ab-
schnitt des Ansaugkanals 6 angeordnet. Unterhalb der in die Böden der Ventilaufnahmebohrungen Y1-Y4 einmündenden Rücklaufkanäle 10 sind die Ventilaufnahmebohrungen Y1-Y4 von den Raddruckkanälen 11 durchsetzt, die sich jeweils radial oder tangential durch die in der zweiten Ventilreihe (Y) angeordneten Ventilaufnahmebohrungen Yl, Y2 bzw. Y3, Y4 zu den in den in der ersten Ventilreihe X angeordneten Ventilaufnahmebohrungen XI, X2 bzw.X3, X4 fortsetzen. Die Raddruckkanäle 11 führen an der dritten Ventilreihe Z vorbei zu den Radbremsanschlüssen Rl, R2 bzw.R3, R4.In the present example, each valve receiving bore Y1, Y2 or Y3, Y4 of the second valve row Y is designed as a blind hole that is as short as possible. Each bottom of the valve receiving bores Y1-Y2 is each connected to a section of a return duct 10 leading to the storage receiving bore 9. Each return channel 10 is an angled channel laterally for short section of the intake duct 6 arranged. Below the return channels 10 opening into the bottoms of the valve receiving bores Y1-Y4, the valve receiving bores Y1-Y4 are penetrated by the wheel pressure channels 11, each of which radially or tangentially through the valve receiving bores Yl, Y2 or Y3, Y4 arranged in the second row of valves (Y) continue to the valve mounting holes XI, X2 or X3, X4 in the first valve row X. The wheel pressure channels 11 lead past the third valve row Z to the wheel brake connections Rl, R2 or R3, R4.
Ferner setzt sich jeweils ein weiterer Abschnitt der Raddruckkanäle 11 jeweils radial oder tangential durch die in der zweiten Ventilreihe Y angeordneten Ventilaufnahmebohrungen Yl, Y2 bzw.Y3, Y4 unterhalb der Speicheraufnahmebohrungen 9 zur dritten Gehäusefläche A3 fort, wo jeweils am End- abschnitt eines jeden Raddruckkanals 11 zur Erfassung der an den vier Radbremsanschlüssen R1-R4 anstehenden Bremsdrücke jeweils eine Drucksensoraufnahmebohrung W1-W4 angeschlossen ist.Furthermore, a further section of the wheel pressure channels 11 continues radially or tangentially through the valve mounting holes Y1, Y2 and Y3, Y4 arranged in the second valve row Y below the storage mounting holes 9 to the third housing surface A3, where in each case at the end section of each wheel pressure channel 11 for detecting the brake pressures present at the four wheel brake connections R1-R4, a pressure sensor receiving bore W1-W4 is connected.
Die Figur 3 zeigt diesbezüglich eine besonders überschaubare Darstellung aller Raddruckkanäle 11 und Drucksensoraufnahmebohrungen Wl, W2, W3, W4 , die in der horizontalen Ebene der ersten und zweiten Ventilreihen X, Y angeordnet sind.In this regard, FIG. 3 shows a particularly clear representation of all wheel pressure channels 11 and pressure sensor receiving bores W1, W2, W3, W4, which are arranged in the horizontal plane of the first and second valve rows X, Y.
Schließlich erlaubt die äußerst kompakt bauende Anordnung aller Kanäle und Aufnahmebohrungen im Aufnahmekörper 1 bei Bedarf die Integration eines Sacklochs für jeden Bremskreis zur Aufnahme eines Pumpensaugdämpfers 12 neben der für das Umschaltventil vorgesehenen Ventilaufnahmebohrung ZI, wozu das Sackloch über einen Saugdämpferkanal 2 mit der das Umschaltventil aufnehmenden Ventilaufnahmebohrung ZI verbunden
ist (siehe Figuren 1 und 5) .Finally, the extremely compact arrangement of all channels and receiving bores in the receiving body 1 allows, if necessary, the integration of a blind hole for each brake circuit for receiving a pump suction damper 12 in addition to the valve receiving bore ZI provided for the switching valve, for which purpose the blind hole via a suction damper channel 2 with the valve receiving bore receiving the switching valve ZI connected is (see Figures 1 and 5).
Wie aus Figur 1 deutlich wird, münden aufgrund der zweikrei- sigen Auslegung der Bremsanlage in der Nähe der Außenkanten des blockförmigen Aufnahmekörpers 4 in die zweite Gehäusefläche A2 zwei Bremsdruckgeberanschlüsse Bl, B2 sowie die zwei Radbremsanschlüsse Rl, R3 ein. Da es sich um eine Bremsanlage für ein mehrspuriges, an vier Rädern gebremstes Kraftfahrzeug handelt, befinden sich zwei weitere Radbremsanschlüsse R2, R4 beispielhaft auf der Oberseite des Aufnah- mekörpers 1. Je nach Montage- bzw. Einbauverhältnissen können die Radbremsanschlüsse R2, R4 selbstverständlich auch in der zweiten Gehäusefläche A2 angeordnet werden.As is clear from FIG. 1, due to the dual-circuit design of the brake system near the outer edges of the block-shaped receiving body 4, two brake pressure transmitter connections B1, B2 and the two wheel brake connections R1, R3 open into the second housing surface A2. Since it is a brake system for a multi-lane motor vehicle that is braked on four wheels, two further wheel brake connections R2, R4 are located, for example, on the top of the receiving body 1. Depending on the mounting or installation conditions, the wheel brake connections R2, R4 can of course also be be arranged in the second housing surface A2.
Dem ersten Bremskreis ist somit der Bremsdruckgeberanschluss Bl zugeordnet, der über die Ventilaufnahmebohrungen ZI, Z2 in der dritten Ventilreihe Z und den Ventilaufnahmebohrungen XI, X2 in der ersten Ventilreihe X normalerweise an den Radbremsanschlüssen Rl, R2 angeschlossen ist. Damit besteht im schlupffreien Bremsenbetrieb über die Ventilaufnahmebohrung ZI, den Schrägkanal 3, die Ventilaufnahmebohrung Z2 und den Einlasskanal 4 eine ungehinderte Verbindung zu den offenen Einlassventilen in den beiden Ventilaufnahmebohrungen XI, X2 der ersten Ventilreihe X, die über die beiden nebeneinander angeordneten Raddruckkanäle 11 unmittelbar mit den Radbremsanschlüssen Rl, R2 des ersten Bremskreises verbunden sind.The first brake circuit is thus assigned the brake pressure transmitter connection Bl, which is normally connected to the wheel brake connections Rl, R2 via the valve mounting holes ZI, Z2 in the third valve row Z and the valve mounting holes XI, X2 in the first valve row X. Thus, in slip-free brake operation, there is an unimpeded connection to the open intake valves in the two valve mounting holes XI, X2 of the first valve row X via the valve mounting hole ZI, the inclined channel 3, the valve mounting hole Z2 and the inlet channel 4, which also directly via the two adjacent wheel pressure channels 11 the wheel brake connections Rl, R2 of the first brake circuit are connected.
Zur Bremsschlupfregelung besteht in einer Druckabbauphase für den ersten Bremskreis eine Druckmittelverbindung der beiden Ventilaufnahmebohrungen XI, X2 über den einen Abschnitt des Raddruckkanals 11 zu den offen geschalteten Auslassventilen in den beiden Ventilaufnahmebohrungen Yl, Y2, so dass von dort über die sich an den Böden der Ventilauf-
nahmebohrungen XI, X2 anschließenden Rücklaufkanäle 10 überschüssiges Bremsdruckvolumen in die Speicheraufnahmebohrung 9 des ersten Bremskreises gelangt, aus der zum Zweck des erneuten Bremsdruckaufbaus das darin gespeicherte Druckmittel der Radbremsen des ersten Bremskreises über den kurzen Abschnitt des Ansaugkanals 6 von einem Pumpkolben in der Pumpenaufnahmebohrung 5 zum Druckkanal 8, zur Geräuschdämpfungskammer 7 und wieder über den zur ersten Ventilreihe X längs verlaufenden Abschnitt des Einlasskanals 4 zu den Ventilaufnahmebohrungen XI, X2 gefördert wird. Sofern die Auslassventile in der Ventilreihe Y wieder geschlossen sind, gelangt das von der Pumpe geförderte Druckmittel im Falle des Druckaufbaus in den Radbremsen durch die geöffneten Einlassventile in die Raddruckkanäle 11 und damit zu den Radbremsanschlüssen Rl, R2. Soll aber der Radbremsdruck in einer der Radbremsen konstant gehalten werden, dann verharren sowohl das der Radbremse zugehörige Einlass- als auch Auslassventil in der Schließstellung, wodurch die Verbindung zwischen dem Einlasskanal 4 und dem Raddruckkanal 11 in der ersten Ventilreihe X als auch die Verbindung des Raddruckkanals 11 mit dem Rücklaufkanal 10 in der zweiten Ventilreihe Y unterbrochen sind.For brake slip control in a pressure reduction phase for the first brake circuit, there is a pressure medium connection of the two valve receiving bores XI, X2 via the one section of the wheel pressure channel 11 to the open outlet valves in the two valve receiving bores Yl, Y2, so that from there on the bottom of the valve - Take bores XI, X2 subsequent return channels 10 excess brake pressure volume in the memory receiving bore 9 of the first brake circuit, from which, for the purpose of renewed brake pressure build-up, the pressure medium stored in the wheel brakes of the first brake circuit via the short section of the suction channel 6 from a pump piston in the pump receiving bore 5 to the pressure channel 8, to the noise damping chamber 7 and again via the section of the inlet channel 4 which runs longitudinally to the first valve row X to the valve receiving bores XI, X2. If the outlet valves in the valve row Y are closed again, the pressure medium delivered by the pump in the case of pressure build-up in the wheel brakes passes through the opened inlet valves into the wheel pressure channels 11 and thus to the wheel brake connections R1, R2. However, if the wheel brake pressure in one of the wheel brakes is to be kept constant, then both the inlet and outlet valves belonging to the wheel brake remain in the closed position, as a result of which the connection between the inlet channel 4 and the wheel pressure channel 11 in the first valve row X and the connection of the wheel pressure channel 11 are interrupted with the return channel 10 in the second row of valves Y.
In dem bereits beispielhaft beschriebenen Bremskreis wird zur Antriebsschlupf- als auch Fahrdynamikregelung das in der Ventilaufnahmebohrung Z2 der dritten Ventilreihe Z eingesetzte Trennventil elektromagnetisch geschlossen und das in der Ventilaufnahmebohrung ZI angeordnete Umschaltventil geöffnet, so dass über den seitlich in die Ventilaufnahmebohrung ZI einmündenden Bremsdruckgeberanschluss Bl Druckmittel zu dem am Boden der Ventilaufnahmebohrung ZI angeordneten ersten Abschnitt des Ansaugkanals 6 gelangt, der somit auf kürzestem Weg (unter Umgehung der ersten und zweiten Ventil-
reihe X, Y) eine direkte Verbindung zur Pumpenaufnahmebohrung 5 herstellt. Der in der Pumpenaufnahmebohrung 5 eingesetzte Pumpkolben fördert sodann über das in der Pumpenaufnahmebohrung 5 eingesetzte Pumpendruckventil Druckmittel in den Druckkanal 8 und von dort über den bereits erwähnten Einlasskanal 4 zu den Ventilaufnahmebohrungen XI, X2, die je nach vorliegendem Druckregelzyklus entweder von den Einlassventilen in Richtung der Radbremsanschlüsse Rl, R2 geöffnet oder verschlossen sind.In the brake circuit already described by way of example, the separating valve used in the valve receiving bore Z2 of the third valve row Z is closed electromagnetically for traction control and driving dynamics control, and the changeover valve arranged in the valve receiving bore ZI is opened, so that pressure medium Bl flows in via the brake pressure transmitter connection Bl opening laterally into the valve receiving bore ZI reaches the first section of the intake duct 6, which is arranged at the bottom of the valve receiving bore ZI, and which is thus by the shortest route (bypassing the first and second valve series X, Y) creates a direct connection to the pump mounting hole 5. The pump piston used in the pump receiving bore 5 then conveys pressure medium into the pressure channel 8 via the pump pressure valve used in the pump receiving bore 5 and from there via the already mentioned inlet channel 4 to the valve receiving bores XI, X2, which depending on the pressure control cycle present either from the inlet valves in the direction of Wheel brake connections Rl, R2 are open or closed.
Aus der räumlichen Darstellung des erfindungsgemäßen Hydraulikaggregats geht hervor, dass zwischen den einzelnen Ventilreihen X, Y, Z mittels Gerad- und Schrägbohrungen ein Druckmittelkanalsystem geschaffen ist, das eine funktionsgerechte Erweiterung zur Antriebsschlupf- als auch Fahrdynamikregelung ermöglicht und andererseits herstelltechnisch möglichst einfach zu realisieren ist.From the spatial representation of the hydraulic unit according to the invention it can be seen that a pressure medium channel system is created between the individual valve rows X, Y, Z by means of straight and oblique bores, which enables a functional expansion for traction control and driving dynamics control and, on the other hand, is easy to implement in terms of manufacturing technology.
Durch die gewählte Lage der dritten Ventilreihe Z ergibt sich vorteilhaft für jeden Bremskreis ein besonders kurzer, widerstandsarmer Ansaugkanal 6 zwischen dem Bremsdruckgeberanschluss Bl bzw B2 und der zugeordneten Pumpenaufnahmebohrung 5. Der Ansaugkanal 6 ist damit schnell und einfach zu entlüften sowie zu befüllen. Schnell und zuverlässig kann überdies das Druckmittel über den Bremsdruckgeberanschluss Bl bzw. B2 auf kürzestem Weg mittels einer Kolbenpumpe in der Pumpenaufnahmebohrung 5 angesaugt werden.The selected position of the third row of valves Z advantageously results in a particularly short, low-resistance intake duct 6 for each brake circuit between the brake pressure transmitter connection Bl or B2 and the associated pump receiving bore 5. The intake duct 6 can thus be vented and filled quickly and easily. In addition, the pressure medium can be sucked in quickly and reliably via the brake pressure transmitter connection Bl or B2 in the shortest way by means of a piston pump in the pump receiving bore 5.
Bezüglich dem Aufbau und der Funktion der für den zweiten Bremskreis erforderlichen Elemente, die spiegelsymmetrisch zu den Elementen des ersten Bremskreises im Aufnahmekörper 1 angeordnet sind, gilt analog das bereits bisher zum ersten Bremskreis Beschriebene.
Zur Verdeutlichung der bisher beschriebenen Konstruktion und Funktion des Hydraulikaggregats wird im nachfolgenden anhand den Figuren 2 bis 5 die Blockverbohrung für die in der Figur 1 teilweise verdeckten Stellen des Aufnahmekörpers 1 beschrieben.With regard to the structure and function of the elements required for the second brake circuit, which are arranged mirror-symmetrically to the elements of the first brake circuit in the receiving body 1, the same applies as described above for the first brake circuit. To clarify the construction and function of the hydraulic unit described so far, the block drilling for the locations of the receiving body 1 partially hidden in FIG. 1 is described below with reference to FIGS. 2 to 5.
Hierzu zeigt die Figur 2 eine Detailansicht aus Fig. 1 zur Erläuterung der Verbindungen zwischen den in der dritten und ersten Ventilreihe Z, X angeordneten Ventilaufnahmebohrungen Z2, Z3 über den Einlasskanal 4 mit der Pumpenaufnahmebohrung 5 für jeden Bremskreis, wodurch das von der Pumpe geförderte Druckmittel entweder über die in der ersten Ventilreihe X offen geschalteten Einlassventile zu den Raddruckkanälen 11 und damit zu den Radbremsanschlüssen Rl, R2 (siehe Figur 3) gelangt oder in der Schließstellung der Einlassventile über den die erste Ventilreihe X mit der dritten Ventilreihe Z verbindenden Einlasskanal 4 zum Trennventil in der Ventilaufnahmebohrung Z2 zurückwirkt. In der normalerweise geöffneten Schaltstellung des Trennventils wirkt somit in der zuvor erläuterten Schließstellung des Einlassventils der Pumpendruck über den an der Ventilaufnahmebohrung Z3 seitlich angeschlossenen Kanal 3 in die Ventilaufnahmebohrung ZI und zum Bremsdruckgeberanschluss Bl zurück (siehe hierzu auch Figur 1) .For this purpose, FIG. 2 shows a detailed view from FIG. 1 to explain the connections between the valve receiving bores Z2, Z3 arranged in the third and first valve row Z, X via the inlet channel 4 with the pump receiving bore 5 for each brake circuit, as a result of which the pressure medium delivered by the pump either via the inlet valves open in the first valve row X to the wheel pressure channels 11 and thus to the wheel brake connections R1, R2 (see FIG. 3), or in the closed position of the inlet valves via the inlet channel 4 connecting the first valve row X to the third valve row Z Isolating valve in valve receiving bore Z2. In the normally open switching position of the isolating valve, the pump pressure thus acts in the previously explained closed position of the inlet valve via channel 3 connected laterally to the valve receiving bore Z3 into the valve receiving bore ZI and to the brake pressure transmitter connection Bl (see also FIG. 1).
Aus der Figur 2 ist ersichtlich, dass der quer zur dritten und der ersten Ventilreihe Z, X verlaufende Abschnitt des Einlasskanals 4 fertigungstechnisch aus der zweiten Gehäusefläche A2 als Sackloch mittels einer einfachen Bohroperation oberhalb der Ventilaufnahmebohrungen Z2, X2 ausgeführt ist. Die eigentliche Verbindung dieses quer zu den Ventilreihen X, Z verlaufenden Kanalabschnitts kommt sodann durch jeweils
eine von der ersten Gehäusefläche AI in die Ventilaufnahmebohrungen Z2, X2 gerichtete Bohroperation zustande, welche die Böden der Ventilaufnahmebohrungen Z2, X2 in Richtung des darüber befindlichen Kanalabschnitts des Einlasskanals 4 durchdringt und den Kanalabschnitt anschneidet.It can be seen from FIG. 2 that the section of the inlet channel 4 which runs transversely to the third and the first row of valves Z, X is made in manufacturing terms from the second housing surface A2 as a blind hole by means of a simple drilling operation above the valve receiving bores Z2, X2. The actual connection of this channel section running transverse to the valve rows X, Z then comes through in each case a drilling operation directed from the first housing surface AI into the valve receiving bores Z2, X2 takes place, which penetrates the bottoms of the valve receiving bores Z2, X2 in the direction of the channel section of the inlet channel 4 above it and cuts the channel section.
Gleichfalls wird der oberhalb entlang der ersten Ventilreihe X horizontal verlaufende Abschnitt des Einlasskanals 4 mittels einer den Einlasskanal 4 anschneidenden Bohroperation von der vierten Gehäusefläche A4 aus hergestellt. Die Verbindung der äußeren Ventilaufnahmebohrung XI mit dem horizontalen Abschnitt des Einlasskanals 4 erfolgt sodann durch eine von der ersten Gehäusefläche AI vertikal durch die Ventilaufnahmebohrung XI gerichteten Bohrvorgang, sofern nicht schon während der horizontalen Bohroperation zur Herstellung des Einlasskanals 4 ein unmittelbarer Anschnitt der Böden der Ventilaufnahmebohrungen XI, X2 vorgesehen ist.Likewise, the section of the inlet duct 4 which runs horizontally above along the first valve row X is produced from the fourth housing surface A4 by means of a drilling operation which cuts the inlet duct 4. The connection of the outer valve receiving bore XI with the horizontal section of the inlet channel 4 is then carried out by a drilling process directed vertically from the first housing surface AI through the valve receiving bore XI, unless a direct cut of the bottoms of the valve receiving holes XI during the horizontal drilling operation for the production of the inlet channel 4 , X2 is provided.
In vorliegenden Beispiel mündet der horizontale Abschnitt des Einlasskanals 4 in eine im Bereich der vierten Gehäusefläche A4 angeordnete Geräuschdämpfungskammer 7, die über einen Druckkanal 8 mit der Druckseite der Pumpenaufnahmebohrung 5 verbunden ist. Der Druckkanal 8 ist mittels einer schräg von oben in den Aufnahmekörper 1 gerichtete Bohrung hergestellt, die den äußeren Endbereich der Pumpenaufnahmebohrung 5 bis zum Anschnitt der Geräuschdämpfungskammer 7 durchdringt. Sowohl die Geräuschdämpfungskammer 7 als auch die schräge Einmündungsstelle des Druckkanals 8 sind mittels Stopfen nach außen hin druckmittedicht verschlossen.In the present example, the horizontal section of the inlet duct 4 opens into a noise damping chamber 7 which is arranged in the region of the fourth housing surface A4 and which is connected via a pressure duct 8 to the pressure side of the pump receiving bore 5. The pressure channel 8 is produced by means of a bore directed obliquely from above into the receiving body 1, which penetrates the outer end region of the pump receiving bore 5 up to the cut of the noise damping chamber 7. Both the noise damping chamber 7 and the oblique junction of the pressure channel 8 are sealed off from the outside by means of plugs.
Die Figur 3 zeigt einen Ausschnitt des Aufnahmekörpers 1 im Bereich der die erste und zweite Ventilreihe X, Y mit den Radanschlüssen R1-R4 und den Drucksensoraufnahmebohrungen
W1-W4 verbindenden Abschnitte der Raddruckkanäle 11. Die für die Radbremsen erforderlichen vier Raddruckkanäle 11 sind abbildungsgemäß parallel nebeneinander von der dritten Gehäusefläche A3 aus auf die parallel nebeneinander angeordneten Ventilaufnahmebohrungen X1-X4, Y1-Y4 gerichtet. Das erforderliche Bohrwerkzeug durchdringt hierzu die Ventilaufnahmebohrungen der zweiten Ventilreihe Y vollständig und schneidet die Wände der Ventilaufnahmebohrungen in der ersten Ventilaufnahmebohrung X an. Die Verbindung der Radbremsanschlüsse R1-R4 mit den Ventilaufnahmebohrungen in der ersten Ventilreihe X erfolgt über den letzten Abschnitt der raddruckkanäle 11 je nach Lage der Radbremsanschlüsse R1-R4. Hierzu ist je nach gewählter Lage der Radbremsanschlüsse Rl- R4 gegebenenfalls zusätzlich eine Schräg- oder Querbohrung zweckmäßig. Die Enden der Raddruckkanäle 11 sind in der dritten Gehäusefläche A3 dicht verschlossen, während die parallel, unmittelbar neben der zweiten Ventilreihe Y in einer vierten Lochreihe W angeordneten Drucksensoraufnahmebohrungen W1-W4 mittels geeigneter Sensoren verschlossen sind, die ebenso wie die Ventile in den Ventilreihen in der Regel aus der ersten Gehäusefläche AI hervorstehen.FIG. 3 shows a section of the receiving body 1 in the area of the first and second row of valves X, Y with the wheel connections R1-R4 and the pressure sensor receiving bores W1-W4 connecting sections of the wheel pressure channels 11. The four wheel pressure channels 11 required for the wheel brakes are directed parallel from one another from the third housing surface A3 onto the valve receiving bores X1-X4, Y1-Y4 arranged parallel to one another. The required drilling tool completely penetrates the valve mounting holes of the second valve row Y and cuts the walls of the valve mounting holes in the first valve mounting hole X. The connection of the wheel brake connections R1-R4 with the valve receiving bores in the first valve row X takes place via the last section of the wheel pressure channels 11, depending on the position of the wheel brake connections R1-R4. Depending on the selected position of the wheel brake connections Rl-R4, an oblique or transverse bore may also be appropriate for this purpose. The ends of the wheel pressure channels 11 are tightly closed in the third housing surface A3, while the pressure sensor receiving bores W1-W4 arranged in parallel, directly next to the second valve row Y in a fourth row of holes W are closed by means of suitable sensors, which, like the valves in the valve rows in FIG Usually protrude from the first housing surface AI.
In der Figur 4 wird im Anschluss an die Figur 3 die Verbindung jeder Ventilaufnahmebohrung der zweiten Ventilreihe Y über die Rücklaufkanäle 10 zu den Speicheraufnahmebohrungen 9 gezeigt, die sich oberhalb der Lochreihe W befinden. Die Fortführung jedes Rücklaufkanals 10 erfolgt als Winkelkanal, der durch das Zusammentreffen einer horizontalen und vertikalen Bohroperation zustande kommt, wozu jeweils ein Bohrvorgang in die jeweilige Ventilaufnahmebohrung der zweiten Ventilreihe Y und in den Boden der Speicheraufnahmebohrung gerichtet ist. Ferner sind sämtliche vertikalen Anschlüsse der Einlasskanäle 4 an den Böden der vier Ventilaufnahmeboh-
rungen X1-X4 in der ersten Ventilreihe X als auch die am Umfang der Ventilaufnahmebohrungen X1-X4 einmündenden Raddruckkanäle 11 gut zu erkennen.In FIG. 4, following the FIG. 3, the connection of each valve receiving bore of the second valve row Y via the return channels 10 to the storage receiving bores 9, which are located above the row of holes W, is shown. The continuation of each return channel 10 takes place as an angular channel, which comes about through the meeting of a horizontal and vertical drilling operation, for which purpose a drilling process is directed into the respective valve receiving bore of the second row of valves Y and into the bottom of the storage receiving bore. Furthermore, all vertical connections of the inlet channels 4 to the bottoms of the four valve mounting holes are stanchions X1-X4 in the first row of valves X as well as the wheel pressure channels 11 opening out at the circumference of the valve receiving bores X1-X4.
Die Figur 5 zeigt schließlich eine weitere Detailansicht des Erfindungsgegenstands mit einem gegenüber der Figur 1 geänderten Bremsdruckgeber- und Trennventilanschluss an der das elektrische Umschaltventil aufnehmenden Ventilaufnahmebohrung ZI. Der Kanal des Bremsdruckgeberanschlusses Bl bzw. B2 mündet nunmehr in erhöhter Lage in die zweite Gehäusefläche A2 ein, so dass dieser oberhalb des Bodens der Ventilaufnahmebohrung ZI linear zur Aufnahmebohrung des Pumpensaugdämp- fers 12 weitergeführt ist. Folglich schließt sich der erste Abschnitt des Ansaugkanals 6 nunmehr unterhalb des Bodens an der Wand der Ventilaufnahmebohrung ZI an. Durch das nunmehr gegnüber der Figur 1 vorgenommene Vertauschen der Kanalanschlüsse kann bei Bedarf die Ventilaufnahmebohrung ZI und damit auch das Umschaltventil umgekehrt durchströmt werden.Finally, FIG. 5 shows a further detailed view of the subject matter of the invention with a brake pressure transmitter and isolating valve connection that has been changed compared to FIG. 1, on the valve receiving bore ZI receiving the electrical changeover valve. The channel of the brake pressure transducer connection Bl or B2 now opens into the second housing surface A2 in an elevated position, so that it is continued linearly above the bottom of the valve mounting bore ZI to the mounting bore of the pump suction damper 12. Consequently, the first section of the intake duct 6 now connects to the wall of the valve receiving bore ZI below the floor. Due to the swapping of the channel connections compared to FIG. 1, the valve receiving bore ZI and thus also the changeover valve can be flowed through in reverse.
Außerdem ist der Kanal 3 in Figur 5 als Schrägkanal unmittelbar von der ersten Gehäusefläche AI aus durch die Ventilaufnahmebohrung Z2 zum Anschlusspunkt des Bremsdruckgeberanschlusses Bl bzw. B2 zum Boden der Ventilaufnahmebohrung ZI geführt. Ferner ist in der Figur 5 ein weiterer Drucksensor- anschluss 14 zwischen den beiden Speicheraufnahmebohrungen 9 angeordnet, der über einen die Pumpenaufnahmebohrung 5 schräg überquerenden Druckmesskanal an der Aufnahmebohrung des Pumpensaugdämpfers 12 angeschlossen ist, wodurch sich der am Bremsdruckgeberanschluss B2 anstehende Druck mittels einer geeigneten Sensorik erfassen lässt.In addition, the channel 3 in FIG. 5 is guided as an oblique channel directly from the first housing surface AI through the valve receiving bore Z2 to the connection point of the brake pressure transmitter connection Bl or B2 to the bottom of the valve receiving bore ZI. In addition, a further pressure sensor connection 14 is arranged in FIG. 5 between the two storage receiving bores 9, which is connected to the receiving bore of the pump suction damper 12 via a pressure measuring channel crossing the pump receiving bore 5 at an angle, whereby the pressure present at the brake pressure transmitter connection B2 is detected by means of a suitable sensor system leaves.
Bezüglich der in der Figur 5 abgebildeten weiteren Einzelheiten wird auf die vorangegangenen Erläuterungen zu den Fi-
guren 1-4 verwiesen.
With regard to the further details depicted in FIG. 5, reference is made to the preceding explanations of the FIGS. guren 1-4 referenced.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Aufnahmekörper1 body
2 Saugdämpferkanal2 suction damper duct
3 Kanal3 channel
4 Einlasskanal4 inlet duct
5 Pumpenaufnahmebohrung5 pump mounting hole
6 Ansaugkanal6 intake duct
7 Geräuschdämpfungskammer7 noise reduction chamber
8 Druckkanal8 pressure channel
9 Speicheraufnahmebohrung9 Storage hole
10 Rücklaufkanal10 return channel
11 Raddruckkanal11 wheel pressure duct
12 Pumpensaugdämpfer12 pump suction dampers
13 Motoraufnahmebohrung13 Motor mounting hole
14 Drucksensoranschluß XI Ventilaufnahmebohrung X2 Ventilaufnahmebohrung X3 Ventilaufnahmebohrung X4 Ventilaufnahmebohrung Yl Ventilaufnahmebohrung Y2 Ventilaufnahmebohrung Y3 Ventilaufnahmebohrung Y4 Ventilaufnahmebohrung ZI Ventilaufnahmebohrung Z2 Ventilaufnahmebohrung Z3 Ventilaufnahmebohrung Z4 Ventilaufnahmebohrung14 Pressure sensor connection XI valve mounting hole X2 valve mounting hole X3 valve mounting hole X4 valve mounting hole Yl valve mounting hole Y2 valve mounting hole Y3 valve mounting hole Y4 valve mounting hole ZI valve mounting hole Z2 valve mounting hole Z3 valve mounting hole Z4
Wl Drucksensoraufnahmebohrung W2 Drucksensoraufnahmebohrung W3 Drucksensoraufnahmebohrung W4 Drucksensoraufnahmebohrung X Ventilreihe
Y VentilreiheWl pressure sensor mounting hole W2 pressure sensor mounting hole W3 pressure sensor mounting hole W4 pressure sensor mounting hole X valve row Y valve series
Z VentilreiheZ valve series
W LochreiheW row of holes
Bl BremsdruckgeberanschlussBl brake pressure sensor connection
B2 BremsdruckgeberanschlussB2 brake pressure sensor connection
AI GehäuseflächeAI housing surface
A2 GehäuseflächeA2 housing area
A3 GehäuseflächeA3 housing area
A4 GehäuseflächeA4 housing area
Rl RadbremsanschlussRl wheel brake connection
R2 RadbremsanschlussR2 wheel brake connection
R3 RadbremsanschlussR3 wheel brake connection
R4 Radbremsanschluss
R4 wheel brake connection
Claims
1. Hydraulikaggregat für schlupfgeregelte Bremsanlagen, mit einem Aufnahmekörper, der in mehreren Ventilaufnahmebohrungen einer ersten und zweiten Ventilreihe Ein- und Auslassventile aufnimmt, die in eine erste Gehäusefläche des Aufnahmekörpers einmünden, die unter einem Winkel versetzt zu einer zweiten Gehäusefläche gelegen ist, in deren Bereich vorzugsweise mehrere Bremsdruckgeber- und/oder Radbremsanschlüsse einmünden, mit einer im Aufnahmekörper angeordneten Pumpenaufnahmebohrung, die quer zur Einmündungsrichtung der Ventilaufnahmebohrungen in den Aufnahmekörper gerichtet ist, wobei die Pumpenaufnahmebohrung zwischen den Achsen der Ventilaufnahmebohrungen der ersten und zweiten Ventilreihe angeordnet ist, mit einer im Aufnahmekörper angeordneten Motoraufnahmebohrung, die auf die Pumpenaufnahmebohrung gerichtet ist, mit einer in den Aufnahmekörper einmündenden Speicheraufnahmebohrung, die quer zu den Achsen der Ventilaufnahmebohrungen in eine dritte Gehäusefläche einmündet, welche der zweiten Gehäusefläche entgegengelegen ist, mit in den Ventilaufnahmebohrungen der zweiten Ventilreihe angeordneten Auslassventilen, wobei in der zweiten Ventilreihe die Achsen der Ventilaufnahmebohrungen zwischen der Speicheraufnahmebohrung und der Pumpenaufnahmebohrung in den Aufnahmekörper gerichtet sind, sowie mit mehreren die Ventil-, Pumpen- und Speicheraufnahmebohrungen verbindenden Kanälen, die eine hydraulische Verbindung zwischen einem Bremsdruckgeber und mehreren Radbremsen herzustellen vermögen, dadurch gekennzeichnet, dass zwischen der ersten, die Ventilaufnahme- bohrungen für die Einlassventile aufweisenden Ventilreihe (X) und der zweiten Gehäusefläche (A2) eine dritte Ventilreihe (Z) im Aufnahmekörper (1) angeordnet ist, die wenigstens in einer Ventilaufnahmebohrung (ZI) ein in Grundstellung geschlossenes elektrisches Umschaltventil aufweist, dessen hydraulische Verbindung mit der Pumpenaufnahmebohrung (5) über einen Abschnitt eines Ansaugkanals (6) erfolgt, welcher die erste Ventilreihe (X) zum Anschluss an die Pumpenaufnahmebohrung (5) überquert.1. Hydraulic unit for slip-controlled brake systems, with a receiving body, which receives inlet and outlet valves in several valve receiving bores of a first and second row of valves, which open into a first housing surface of the receiving body, which is offset at an angle to a second housing surface, in the area thereof preferably a plurality of brake pressure transmitter and / or wheel brake connections open, with a pump receiving bore arranged in the receiving body, which is directed transversely to the opening direction of the valve receiving bores in the receiving body, the pump receiving bore being arranged between the axes of the valve receiving bores of the first and second row of valves, with one arranged in the receiving body Motor mounting bore, which is directed onto the pump mounting bore, with a storage mounting bore which opens into the mounting body and which transversely to the axes of the valve mounting bores into a third housing surface e opens, which is opposite to the second housing surface, with outlet valves arranged in the valve receiving bores of the second valve row, the axes of the valve receiving bores between the storage receiving bore and the pump receiving bore being directed into the receiving body in the second valve row, and with several the valve, pump and Channels connecting storage receiving bores, which are able to establish a hydraulic connection between a brake pressure sensor and a plurality of wheel brakes, characterized in that between the first, the valve receiving bores for the inlet valve valve row (X) and the second housing surface (A2), a third valve row (Z) is arranged in the receiving body (1), which has at least in a valve receiving bore (ZI) a closed electrical changeover valve, the hydraulic connection with the pump receiving bore (5) takes place via a section of an intake duct (6) which crosses the first row of valves (X) for connection to the pump receiving bore (5).
2. Hydraulikaggregat nach Anspruch 1, dadurch gekennzeichnet, dass wenigstens eine weitere Ventilaufnahmebohrung2. Hydraulic unit according to claim 1, characterized in that at least one further valve receiving bore
(Z2) der dritten Ventilreihe (Z) , in die ein Trennventil eingesetzt ist, über einen Kanal (3) , vorzugsweise einen Schrägkanal, mit der das Umschaltventil aufweisenden Ventilaufnahmebohrung (ZI) verbunden ist.(Z2) of the third row of valves (Z), into which a separating valve is inserted, via a channel (3), preferably an oblique channel, to which the valve receiving bore (ZI) having the changeover valve is connected.
3. Hydraulikaggregat nach Anspruch 2, dadurch gekennzeichnet, dass die das Trennventil aufweisende Ventilaufnahmebohrung (Z2) an einem zur ersten Ventilreihe (X) führenden Einlasskanal (4) angeschlossen ist, der in der ersten Ventilreihe (X) jeweils in den Boden einer als Sackbohrung ausgeführten Ventilaufnahmebohrung (X2) einmündet, die ein Einlassventil aufnimmt.3. Hydraulic unit according to claim 2, characterized in that the valve receiving bore (Z2) having the isolating valve is connected to an inlet channel (4) leading to the first valve row (X), which in the first valve row (X) in each case in the bottom of a blind bore executed valve receiving bore (X2) which receives an inlet valve.
4. Hydraulikaggregat nach Anspruch 3, dadurch gekennzeichnet, dass sich der Einlasskanal (4) längs der ersten Ventilreihe (X) in Richtung auf eine Geräuschdämpfungskammer (7) fortsetzt, die unmittelbar neben der Pumpenaufnahmebohrung (5) in eine vierte Gehäusefläche (A4) einmündet, in die sich auch die Pumpenaufnahmebohrung (5) erstreckt. 4. Hydraulic unit according to claim 3, characterized in that the inlet channel (4) continues along the first row of valves (X) in the direction of a noise damping chamber (7) which opens directly next to the pump receiving bore (5) into a fourth housing surface (A4) , into which the pump receiving bore (5) also extends.
. Hydraulikaggregat nach Anspruch 4, dadurch gekennzeichnet, dass ein Druckkanal (8) die Pumpenaufnahmebohrung, Hydraulic unit according to claim 4, characterized in that a pressure channel (8) the pump receiving bore
(5) am äußeren Ende der Pumpenaufnahmebohrung (5) in Richtung auf die Geräuschdämpfungskammer (7) radial durchdringt, wozu der Druckkanal (8) vorzugsweise als Schrägkanal ausgeführt ist, der radial in eine für die Geräuschdämpfungskammer (7) vorgesehenen Sackbohrung einmündet .(5) at the outer end of the pump receiving bore (5) penetrates radially in the direction of the noise damping chamber (7), for which purpose the pressure channel (8) is preferably designed as an inclined channel which opens radially into a blind bore provided for the noise damping chamber (7).
6. Hydraulikaggregat nach Anspruch 1, dadurch gekennzeichnet, dass die Pumpenaufnahmebohrung (5) in Richtung auf die Speicheraufnahmebohrung (9) vom Ansaugkanal (6) durchdrungen ist, wobei der Ansaugkanal (6) in den Boden der Speicheraufnahmebohrung (9) einmündet.6. Hydraulic unit according to claim 1, characterized in that the pump receiving bore (5) in the direction of the storage receiving bore (9) is penetrated by the suction channel (6), the suction channel (6) opening into the bottom of the storage receiving bore (9).
7. Hydraulikaggregat nach Anspruch 6, dadurch gekennzeichnet, dass in dem Abschnitt des Ansaugkanals (6), der zwischen der Pumpenaufnahmebohrung (5) und der Speicheraufnahmebohrung (9) gelegen ist, ein in der Richtung der Pumpenaufnahmebohrung (5) öffnendes Rückschlagventil eingesetzt ist.7. Hydraulic unit according to claim 6, characterized in that in the section of the intake duct (6) which is located between the pump receiving bore (5) and the storage receiving bore (9), a check valve opening in the direction of the pump receiving bore (5) is used.
8. Hydraulikaggregat nach Anspruch 6, dadurch gekennzeichnet, dass in den Boden der Speicheraufnahmebohrung (9) ein Rücklaufkanal (10) einmündet, der wenigstens mit einer der die Auslassventile aufnehmenden Ventilaufnahmebohrungen (Y2) ) verbunden ist, die unmittelbar neben der Speicheraufnahmebohrung (9) in der zweiten Ventilreihe (Y) angeordnet ist.8. Hydraulic unit according to claim 6, characterized in that in the bottom of the storage-receiving bore (9) opens a return channel (10) which is connected to at least one of the exhaust valve-receiving valve-receiving bores (Y2)), which is directly next to the storage-receiving bore (9) is arranged in the second row of valves (Y).
9. Hydraulikaggregat nach Anspruch 8, dadurch gekennzeichnet, dass jede Ventilaufnahmebohrung (Yl, Y2) der zwei- ten Ventilreihe (Y) als Sackloch ausgeführt ist, an dessen Boden ein zur Speicheraufnahmebohrung (9) führender Rücklaufkanal (10) angeschlossen ist.9. Hydraulic unit according to claim 8, characterized in that each valve receiving bore (Yl, Y2) of the two- th valve row (Y) is designed as a blind hole, at the bottom of which a return duct (10) leading to the storage-receiving bore (9) is connected.
10. Hydraulikaggregat nach Anspruch 9, dadurch gekennzeichnet, dass sich der Rücklaufkanal (10) an der Pumpenaufnahmebohrung (5) vorbei jeweils radial oder tangential durch die in der zweiten Ventilreihe (Y) angeordnete Ventilaufnahmebohrung (Y2) zu der in der ersten Ventilreihe (X) angeordnete Ventilaufnahmebohrung (X2) erstreckt, die mittels eines an der dritten Ventilreihe (Z) vorbeigeführten Raddruckkanals (11) mit dem neben oder oberhalb der dritten Ventilreihe (Z) angeordneten Radbremsanschluss (R2) verbunden ist.10. Hydraulic unit according to claim 9, characterized in that the return channel (10) past the pump receiving bore (5) radially or tangentially through the valve receiving bore (Y2) arranged in the second valve row (Y) to that in the first valve row (X ) arranged valve receiving bore (X2), which is connected by means of a wheel pressure channel (11) that leads past the third valve row (Z) to the wheel brake connection (R2) arranged next to or above the third valve row (Z).
11. Hydraulikaggregat nach Anspruch 10, dadurch gekennzeichnet, dass sich ein Abschnitt des Rücklaufkanals (10) jeweils radial oder tangential durch die in der zweiten Ventilreihe (Y) angeordnete Ventilaufnahmebohrung (Y2) an der Speicheraufnahmebohrung (9) vorbei zur dritten Gehäusefläche (A3) erstreckt, wobei an diesem Abschnitt des Rücklaufkanals (10) eine Drucksensoraufnahmebohrung (W2) angeschlossen ist.11. Hydraulic unit according to claim 10, characterized in that a section of the return channel (10) each radially or tangentially through the valve receiving bore (Y2) arranged in the second valve row (Y) past the storage receiving bore (9) to the third housing surface (A3) extends, a pressure sensor receiving bore (W2) being connected to this section of the return duct (10).
12. Hydraulikaggregat nach Anspruch 1, dadurch gekennzeichnet, dass neben der für das Umschaltventil vorgesehenen Ventilaufnahmebohrung (ZI) im Aufnahmekörper (1) ein Sackloch zur Aufnahme eines Pumpensaugdämpfers (12) vorgesehen ist, welches über einen Druckkanal (13) mit der das Umschaltventil aufnehmenden Ventilaufnahmebohrung (ZI) verbunden ist. 12. Hydraulic unit according to claim 1, characterized in that in addition to the valve receiving bore (ZI) provided for the changeover valve in the receiving body (1), a blind hole is provided for receiving a pump suction damper (12), which receives the changeover valve via a pressure channel (13) Valve receiving bore (ZI) is connected.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10203485 | 2002-01-30 | ||
DE10203485 | 2002-01-30 | ||
DE10209559 | 2002-03-04 | ||
DE10209559 | 2002-03-04 | ||
DE10228424 | 2002-06-26 | ||
DE10228424A DE10228424A1 (en) | 2002-01-30 | 2002-06-26 | Hydraulic unit for slip-controlled brake systems |
PCT/EP2003/000135 WO2003064229A1 (en) | 2002-01-30 | 2003-01-09 | Hydraulic unit for slip-controlled brake systems |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1472125A1 true EP1472125A1 (en) | 2004-11-03 |
Family
ID=27669715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03734660A Withdrawn EP1472125A1 (en) | 2002-01-30 | 2003-01-09 | Hydraulic unit for slip-controlled brake systems |
Country Status (4)
Country | Link |
---|---|
US (1) | US7018003B2 (en) |
EP (1) | EP1472125A1 (en) |
JP (1) | JP2005515934A (en) |
WO (1) | WO2003064229A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502004005337D1 (en) * | 2003-10-10 | 2007-12-06 | Continental Teves Ag & Co Ohg | HYDRAULIC POWER PACK |
DE102005005390A1 (en) * | 2004-10-13 | 2006-05-24 | Continental Teves Ag & Co. Ohg | motorcycle brake system |
DE102007031308A1 (en) | 2007-07-05 | 2009-01-08 | Robert Bosch Gmbh | Hydraulic unit for regulating the brake pressure in a vehicle brake system |
DE102007047124A1 (en) * | 2007-10-02 | 2009-04-09 | Robert Bosch Gmbh | Hydraulic unit for a slip-controlled hydraulic vehicle brake system |
DE102008029536B4 (en) * | 2008-04-28 | 2023-07-20 | Continental Automotive Technologies GmbH | hydraulic unit |
DE102008037047A1 (en) * | 2008-05-15 | 2009-11-19 | Continental Teves Ag & Co. Ohg | hydraulic power unit |
DE102017216903A1 (en) * | 2017-09-25 | 2019-03-28 | Robert Bosch Gmbh | Pump housing of a hydraulic unit with a pump intake |
KR102440009B1 (en) * | 2018-03-16 | 2022-09-05 | 현대모비스 주식회사 | Brake device for vehicle |
GB2579804B (en) * | 2018-12-14 | 2021-02-10 | Continental Automotive Romania Srl | A valve support with integrated piston housing for hydraulic electronic control unit braking system and braking system using said valve support |
DE102019205803A1 (en) * | 2019-04-23 | 2020-10-29 | Robert Bosch Gmbh | Hydraulic unit, in particular for controlling the brake pressure of a wheel brake of an electronically slip-regulated brake system of a motor vehicle |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3538947A (en) * | 1967-11-27 | 1970-11-10 | Teldix Gmbh | Multiple valve araangement |
DE4234013A1 (en) * | 1992-10-09 | 1994-04-14 | Teves Gmbh Alfred | Hydraulic set for slip regulated braking system of motor vehicle - has hydraulic, mechanical and/or electrically operable operating elements such as valves and pressure generators arranged at housing block |
DE4415613C1 (en) * | 1994-05-04 | 1995-04-27 | Daimler Benz Ag | Hydraulic dual-circuit brake system for a road vehicle |
DE19542582A1 (en) * | 1995-11-15 | 1997-05-22 | Teves Gmbh Alfred | Electrohydraulic unit for pressure control in motor vehicle brake systems |
DE19712211A1 (en) * | 1997-03-24 | 1998-10-01 | Itt Mfg Enterprises Inc | Electrohydraulic unit for pressure control in brake systems for motor vehicles |
DE19722550A1 (en) | 1997-05-28 | 1998-12-03 | Itt Mfg Enterprises Inc | Pressure reducing and damping device for motor vehicle brake systems |
DE19744522A1 (en) | 1997-10-09 | 1999-04-15 | Itt Mfg Enterprises Inc | Module for hydraulic brakes |
JP4369617B2 (en) * | 1997-11-14 | 2009-11-25 | コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト | Hydraulic device for slip control type brake device |
DE19849287A1 (en) * | 1998-07-08 | 2000-01-13 | Continental Teves Ag & Co Ohg | Brake pressure control unit |
WO2001000471A1 (en) * | 1999-06-29 | 2001-01-04 | Continental Teves Ag & Co. Ohg | Hydraulic aggregate |
WO2002042134A1 (en) * | 2000-11-21 | 2002-05-30 | Continental Teves Ag & Co. Ohg | Hydraulic unit for anti-slip regulated braking systems |
-
2003
- 2003-01-09 EP EP03734660A patent/EP1472125A1/en not_active Withdrawn
- 2003-01-09 WO PCT/EP2003/000135 patent/WO2003064229A1/en not_active Application Discontinuation
- 2003-01-09 JP JP2003563874A patent/JP2005515934A/en not_active Withdrawn
- 2003-01-09 US US10/502,491 patent/US7018003B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO03064229A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20050082910A1 (en) | 2005-04-21 |
WO2003064229A1 (en) | 2003-08-07 |
JP2005515934A (en) | 2005-06-02 |
US7018003B2 (en) | 2006-03-28 |
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