DE102006021976A1 - Electrohydraulic set, especially for vehicle hydraulic braking equipment, has device for switching between different hydraulic active surfaces - Google Patents
Electrohydraulic set, especially for vehicle hydraulic braking equipment, has device for switching between different hydraulic active surfaces Download PDFInfo
- Publication number
- DE102006021976A1 DE102006021976A1 DE102006021976A DE102006021976A DE102006021976A1 DE 102006021976 A1 DE102006021976 A1 DE 102006021976A1 DE 102006021976 A DE102006021976 A DE 102006021976A DE 102006021976 A DE102006021976 A DE 102006021976A DE 102006021976 A1 DE102006021976 A1 DE 102006021976A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- unit according
- locking bolt
- hydraulic
- electrohydraulic unit
- 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.)
- Ceased
Links
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010012186 Delayed delivery Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JKMBMIMLVFMXRW-LYYFRFARSA-N epicocconone Chemical compound C1=C2C[C@@H](CO)OC=C2C(=O)[C@]2(C)C1=C(C(/O)=C/C(=O)/C=C/C=C/C=C/C)C(=O)O2 JKMBMIMLVFMXRW-LYYFRFARSA-N 0.000 description 1
- 238000011058 failure modes and effects analysis Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000001718 repressive effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/18—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the effective cross-section of the working surface of the piston
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
-
- 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
- B60T8/40—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 comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4031—Pump units characterised by their construction or mounting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
Die Erfindung betrifft ein elektrohydraulisches Aggregat mit den Merkmalen des Oberbegriffs des Patentanspruchs 1.The The invention relates to an electro-hydraulic unit having the features of the preamble of claim 1.
In
der nicht vorveröffentlichten
Der Erfindung liegt die Aufgabe zu Grunde, zusätzlich zum oben genannten Zusammenhang effektive Vorschläge für die Gestaltung der Schaltvorrichtung zu unterbreiten.Of the Invention is based on the object, in addition to the above context effective proposals for the Design of the switching device to submit.
Insbesondere soll die Schaltvorrichtung energetisch günstig arbeiten.Especially the switching device should work energetically favorable.
Die Aufgabe wird gelöst, indem die Schaltvorrichtung einen Sperrriegel umfasst, der formschlüssig an dem Kolben oder formschlüssig an dem Kolbensegment angreift, und dass der Sperrriegel quer also senkrecht oder schräg zu einer Kolbenbewegungsrichtung verschiebbar in einem Aufnahmekörper der Kolbenpumpe angeordnet ist. Durch die beschriebene Anordnung ist der Sperrschieber von den herrschenden hydraulischen Druckkräften entkoppelt, und für die Aufrechterhaltung einer Sperrstellung ist wenig Energie erforderlich.The Task is solved by the switching device comprises a locking bolt, the form-fitting to the piston or positive engages the piston segment, and that the locking bar transversely so vertical or oblique displaceable to a piston movement direction in a receiving body of Piston pump is arranged. By the described arrangement is the gate valve is decoupled from the prevailing hydraulic pressure forces, and for the maintenance of a locked position requires little energy.
Bevorzugt ist für die Betätigung des Sperrriegels ein bestrombarer Aktuator, insbesondere ein Elektromagnetaktuator oder ein Piezoaktuator, mit einer stromlos unbetätigten (entsperrten) Schaltstellung vorgesehen. Dadurch kann die Ansteuerung der Schaltvorrichtung aktiv in elektronische Regelvorgänge einer Bremsanlage eingebunden werden.Prefers is for the operation the locking bar an energizable actuator, in particular a solenoid actuator or a Piezoaktuator, with a normally-off unactuated (unlocked) switching position intended. As a result, the control of the switching device active in electronic control processes be integrated into a brake system.
Bei einer anderen bevorzugten Ausführungsform erfolgt die Betätigung des Sperrriegels hydraulisch untersetzt, insbesondere anhand von einem Hydraulikkolben mit vorgegebener Wirkuntersetzung, wobei für die hydraulische Betätigung die hydraulische Kraft in einem Arbeitsraum der Pumpe angezapft sowie anhand des vorbestimmten Untersetzungsverhältnis auf den Sperrriegel mitgeteilt wird. Dies ist mit dem Vorteil verknüpft, dass die Wirkenergie für den Schaltvorgang implizit aus dem System entnommen wird, so dass eine Ansteuerung des Sperrsiegels selbst bei elektronischen Störungen oder bei Energieverknappung aufrecht erhalten werden kann.at another preferred embodiment the actuation takes place of the locking bar hydraulically stocked, in particular on the basis of a hydraulic piston with a given effective replacement, wherein for the hydraulic activity tapped the hydraulic power in a working space of the pump and communicated to the lock bar based on the predetermined reduction ratio becomes. This is associated with the advantage that the active energy for the switching process implicitly removed from the system, so that a drive the blocking seal even in case of electronic interference or energy shortage can be maintained.
Weitere Merkmale, Vorteile und Anwendungsmöglichkeiten der Erfindung gehen im nachfolgenden aus der Beschreibung von Ausführungsbeispielen sowie anhand der Zeichnung hervor.Further Features, advantages and applications of the invention go in the following from the description of exemplary embodiments and with reference to the drawing out.
In der Zeichnung zeigt:In the drawing shows:
Zunächst sei prinzipiell und verbal eine hydraulische Verschaltung einer hydraulischen Fahrzeugbremsanlage erläutert.First, be principally and verbally a hydraulic connection of a hydraulic Vehicle brake system explained.
Eine Bremsanlage umfasst meist einen pneumatischen Bremskraftverstärker, und einen, einen Druckmittelvorratsbehälter aufweisenden, Hauptbremszylinder oder Simulator, dessen Druckkammern über Bremsleitungen mit Radbremsen verbunden werden können. Die Druckkammern und Radbremsen sind paarweise in sogenannten Bremskreisen I, II zusammengefasst. Bei den Bremskreisen I, II hat sich die sogenannte Diagonalaufteilung unter Zusammenfassung von diagonal gegenüberliegenden Radbremsen der Vorderachse sowie Hinterachse eines Fahrzeugs durchgesetzt, wobei prinzipiell auch andere Aufteilungen wie beispielsweise die sogenannte Schwarz/Weiß Aufteilung unter paarweiser Kombination der Radbremsen einer Achse oder weitere abgewandelte Ausführungen möglich sind.A Brake system usually includes a pneumatic brake booster, and a, a pressure fluid reservoir having, master cylinder or simulator, its pressure chambers via brake lines with wheel brakes can be connected. The pressure chambers and wheel brakes are in pairs in so-called brake circuits I, II summarized. In the brake circuits I, II, the so-called Diagonal distribution under summary of diagonally opposite Enforced wheel brakes of the front axle and rear axle of a vehicle, in principle, other divisions such as the so-called black and white division under pairwise combination of the wheel brakes of one axle or more modified versions possible are.
Zur Erfassung eines fahrerseitig eingesteuerten Drucks in einer Verbindung zwischen Druckkammer und Radbremsen dient meist ein Drucksensor in der Bremsleitung, welche eine Druckkammer mit Radbremsen vom Bremskreis I verbindet.to Detection of driver-side pressure in a connection between the pressure chamber and wheel brakes is usually a pressure sensor in the brake line, which is a pressure chamber with wheel brakes from Brake circuit I connects.
Ein
Aufnahmekörper
(HCU)
Jeder Bremskreis weist ein elektromagnetisches Trennventil sowie für jede Radbremse jeweils ein Einlassventil und jeweils ein Auslassventil auf. An die Radbremsen eines jeden Bremskreises I, II sind Rücklaufleitungen angeschlossen, welche zurück zu der jeweiligen Hauptzylinder-Druckkammer führen. Die Auslassventile sind zum gezielten Druckabbau in der Radbremse vorgesehen. Weiterhin ist in den Rücklauf zumindest ein Niederdruckspeicher integriert, welcher abgelassenes Fluid blitzschnell aufnehmen kann, falls sich die Pumpenförderung verzögert.Everyone Brake circuit has an electromagnetic isolation valve and for each wheel brake one inlet valve and one outlet valve each. To the Wheel brakes of each brake circuit I, II are connected return lines, which back lead to the respective master cylinder pressure chamber. The exhaust valves are intended for targeted pressure reduction in the wheel brake. Farther is in the return integrated at least one low-pressure accumulator, which drained Fluid can absorb lightning fast, if the pump delivery delayed.
Jeder
Bremskreis weist eine elektromotorisch angetriebene Kolbenpumpe
Um
beispielhaft einen Wechsel zwischen ABS-Rückförderbetrieb
(in Richtung Hauptbremszylinder) und Parkbrems- Regelungsbetrieb
mittels der Kolbenpumpe
Aus
der
Der
Kolben
Das
zentrale Kolbensegment
Eine
Schaltvorrichtung nach
Dadurch
bleibt das radial äußere Kolbensegment
In
den
Gemäß
Weiterhin
verfügt
der Sperriegel
Die
Ausbildung von Ausnehmung
Die
Schaltvorrichtung verfügt
weiterhin über ein
Federelement
Aus
Ein automatisch-mechanischer Fail-Safe-Modus ermöglicht es, dass die Schaltvorrichtung selbst in außenstromlosem Zustand, Defektfall oder ähnlicher Störung sicher ihre Lösestellung einnimmt und behält. Diese Funktionalität ist aus FMEA-Gründen sehr wertvoll.One automatic-mechanical fail-safe mode allows the switching device even in external powerless Condition, defect or similar disorder safely takes her release position and keeps. This functionality is for FMEA reasons very valuable.
- 11
- Aufnahmekörperreceiving body
- 22
- Kolbenpumpepiston pump
- 33
- Antriebswelledrive shaft
- 44
- Kurbelraumcrankcase
- 55
- Exzentereccentric
- 66
- Exzenterlagereccentric
- 77
- Pumpenpatronepump cartridge
- 88th
- LaufbuchsenabschnittLiner section
- 99
- Stufenbohrungstepped bore
- 1010
- Deckelcover
- 1111
- Kolbenpiston
- 1212
- LageraussenringBearing outer ring
- 1313
- Verdrängungsraumdisplacement space
- 1414
- SitzSeat
- 1515
- RückschlagventilkörperCheck valve body
- 1616
- RückstellfederReturn spring
- 1717
- Druckventilpressure valve
- 1818
- Saugventilsuction
- 1919
- Kolbensegmentpiston segment
- 2020
- Kolbensegmentpiston segment
- 2121
- Dichtelementsealing element
- 2222
- Dichtelementsealing element
- 2323
- Sperriegelsafety catch
- 2424
- Aktuatoractuator
- 2525
- Schrägflächesloping surface
- 2626
- Rastvorsprungcatch projection
- 2727
- Ausnehmungrecess
- 2828
- Bodenground
- 2929
- Wandungwall
- 3030
- KolbenrückenflächePiston rear face
- 3131
- Federelementspring element
- 3232
- Aktuatoractuator
- 3333
- Sperriegelsafety catch
- 3434
- Rastvorsprungcatch projection
- 3535
- RückführbohrungReturn bore
- Ee
- Eingangentrance
- AA
- Ausgangoutput
- A1A1
- hydraulische Wirkflächehydraulic effective area
- A1 + A2A1 + A2
- hydraulische Wirkflächehydraulic effective area
- Akak
- Kolbenflächepiston area
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006021976A DE102006021976A1 (en) | 2005-07-22 | 2006-05-10 | Electrohydraulic set, especially for vehicle hydraulic braking equipment, has device for switching between different hydraulic active surfaces |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005034571A DE102005034571A1 (en) | 2004-11-12 | 2005-07-22 | Electrohydraulic unit |
DE102006016815.1 | 2006-04-07 | ||
DE102006016815 | 2006-04-07 | ||
DE102006021976A DE102006021976A1 (en) | 2005-07-22 | 2006-05-10 | Electrohydraulic set, especially for vehicle hydraulic braking equipment, has device for switching between different hydraulic active surfaces |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006021976A1 true DE102006021976A1 (en) | 2007-10-11 |
Family
ID=38513538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006021976A Ceased DE102006021976A1 (en) | 2005-07-22 | 2006-05-10 | Electrohydraulic set, especially for vehicle hydraulic braking equipment, has device for switching between different hydraulic active surfaces |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006021976A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4102364A1 (en) * | 1991-01-28 | 1992-07-30 | Teves Gmbh Alfred | Piston pump unit - has stepped piston forming two working chambers |
WO1998012434A1 (en) * | 1996-09-19 | 1998-03-26 | Robert Bosch Gmbh | Piston pump |
DE20115969U1 (en) * | 2000-05-31 | 2002-02-28 | Holger Clasen KG (GmbH & Co.), 22297 Hamburg | piston pump |
DE10249909A1 (en) * | 2002-10-26 | 2004-05-06 | Continental Teves Ag & Co. Ohg | piston pump |
WO2005050015A1 (en) * | 2003-11-18 | 2005-06-02 | Robert Bosch Gmbh | Multi-plunger pump |
-
2006
- 2006-05-10 DE DE102006021976A patent/DE102006021976A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4102364A1 (en) * | 1991-01-28 | 1992-07-30 | Teves Gmbh Alfred | Piston pump unit - has stepped piston forming two working chambers |
WO1998012434A1 (en) * | 1996-09-19 | 1998-03-26 | Robert Bosch Gmbh | Piston pump |
DE20115969U1 (en) * | 2000-05-31 | 2002-02-28 | Holger Clasen KG (GmbH & Co.), 22297 Hamburg | piston pump |
DE10249909A1 (en) * | 2002-10-26 | 2004-05-06 | Continental Teves Ag & Co. Ohg | piston pump |
WO2005050015A1 (en) * | 2003-11-18 | 2005-06-02 | Robert Bosch Gmbh | Multi-plunger pump |
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