DE102014207234A1 - Electrohydraulic actuator - Google Patents
Electrohydraulic actuator Download PDFInfo
- Publication number
- DE102014207234A1 DE102014207234A1 DE102014207234.4A DE102014207234A DE102014207234A1 DE 102014207234 A1 DE102014207234 A1 DE 102014207234A1 DE 102014207234 A DE102014207234 A DE 102014207234A DE 102014207234 A1 DE102014207234 A1 DE 102014207234A1
- Authority
- DE
- Germany
- Prior art keywords
- actuator according
- piston
- pistons
- electric motor
- threaded spindle
- 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- Withdrawn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
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000004323 axial length Effects 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
-
- 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
- B60T8/4018—Pump units characterised by their drive mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Transmission Devices (AREA)
Abstract
Elektrohydraulischer Aktuator mit einem Elektromotor (1), einem dem Elektromotor (1) wirkungsmäßig nachgeschalteten Rotations-Translationsgetriebe (2), das eine Gewindespindel (13) sowie eine Gewindemutter (14) aufweist, mit mindestens einem ersten Kolben (3a, 3b), der mindestens einen ersten hydraulischen Druckraum (4a, 4b) begrenzt, sowie mindestens einem zweiten Kolben (5a, 5b), der mindestens einen zweiten hydraulischen Druckraum (6a, 6b) begrenzt, wobei die Translationsbewegung des Rotations-Translationsgetriebes (2) auf die Kolben (3a, 3b, 5a, 5b) übertragen wird, wobei der Elektromotor (1) koaxial zur Gewindespindel (13) bzw. der Gewindemutter (14) und radial umgreifend zu den Kolben (3a, 3b, 5a, 5b) angeordnet ist, die um die Gewindespindel (13) gleichförmig verteilt angeordnet sind.Electrohydraulic actuator comprising an electric motor (1), a rotation-translation gear (2) operatively connected downstream of the electric motor (1), which has a threaded spindle (13) and a threaded nut (14), with at least one first piston (3a, 3b) at least one first hydraulic pressure chamber (4a, 4b) limited, and at least one second piston (5a, 5b), the at least one second hydraulic pressure chamber (6a, 6b) limited, wherein the translational movement of the rotational translation gear (2) on the piston ( 3a, 3b, 5a, 5b), wherein the electric motor (1) coaxial with the threaded spindle (13) and the threaded nut (14) and radially encompassing to the piston (3a, 3b, 5a, 5b) is arranged around the threaded spindle (13) are arranged uniformly distributed.
Description
Die vorliegende Erfindung betrifft einen elektrohydraulischen Aktuator mit einem Elektromotor, einem dem Elektromotor wirkungsmäßig nachgeschalteten Rotations-Translationsgetriebe, das eine Gewindespindel sowie eine Gewindemutter aufweist, mit mindestens einem ersten Kolben, der einen ersten hydraulischen Druckraum begrenzt, sowie mindestens einem zweiten Kolben, der einen zweiten hydraulischen Druckraum begrenzt, wobei die Translationsbewegung des Rotations-Translationsgetriebes auf die Kolben übertragen wird.The present invention relates to an electrohydraulic actuator having an electric motor, a rotationally-translational gear operatively connected downstream of the electric motor, which has a threaded spindle and a threaded nut, with at least one first piston defining a first hydraulic pressure chamber and at least one second piston having a second limited hydraulic pressure chamber, wherein the translational movement of the rotary-translation gear is transmitted to the piston.
Ein derartiger Aktuator ist aus der
Es ist daher Aufgabe der vorliegenden Erfindung, einen elektrohydraulischen Aktuator der oben genannten Gattung dahin gehend zu verbessern, dass dessen Aufbau vereinfacht und dessen axiale Baulänge reduziert wird.It is therefore an object of the present invention to improve an electro-hydraulic actuator of the type mentioned above so that its structure is simplified and its axial length is reduced.
Diese Aufgabe wird erfindungsgemäß durch einen elektrohydraulischen Aktuator gemäß Anspruch 1 gelöst.This object is achieved by an electro-hydraulic actuator according to claim 1.
Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind in den Unteransprüchen 2 bis 15 angegeben.Advantageous developments of the subject invention are specified in the
Die Erfindung wird nachfolgend im Zusammenhang mit der beiliegenden Zeichnung an einem Ausführungsbeispiel näher erläutert, wobei die
Für die Bezeichnung gleicher Elemente werden in der nachfolgenden Beschreibung des Ausführungsbeispiels die gleichen Bezugszeichen verwendet.For the designation of the same elements, the same reference numerals are used in the following description of the embodiment.
Die in der Zeichnung gezeigte erfindungsgemäße Aktuator besteht im Wesentlichen aus einem Elektromotor
Der Elektromotor
Die Rotations-Translationsgetriebe
Eine in der Nähe des in der Zeichnung linken Endes der Gewindespindel
Ein Wälzlager
Zur Verbesserung des dynamischen Verhaltens des erfindungsgemäßen Aktuators wird eine Umschaltung der hydraulisch wirksamen Flächen der Kolben
Im Umkehrschluss gilt, dass durch die Wahl einer größeren Wirkfläche (sämtlicher Kolben
Alternativ zu der in der Zeichnung gezeigten Ausführung des erfindungsgemäßen Aktuators können auf dem einschlägigen Gebiet tätige Fachleute Modifikationen bzw. Änderungen durchführen, ohne vom Rahmen der Erfindung abzuweichen. So können beispielsweise die die Druckräume begrenzenden Kolben als Plungerkolben ausgebildet werden, die mit unbeweglichen Dichtelementen zusammen wirken können.As an alternative to the embodiment of the actuator according to the invention shown in the drawing, those skilled in the art may make modifications without departing from the scope of the invention. Thus, for example, the pressure chambers limiting piston can be formed as a plunger, which can interact with immovable sealing elements.
Außerdem kann es vorteilhaft sein, wenn die Kolben durch mehrere Teilkolben gebildet werden, da sich somit ein kleinerer Rotordurchmesser bei gleichen Kolbenflächen ergibt. Bei einer Wahl unterschiedlicher Teilkolbenanzahlen pro Kolben, kann eine äquivalente Wirkung erreicht werden, die unterschiedlichen Kolbendurchmessern entspricht. Auch der Elektromotor kann auf der anderen Seite angebracht werden, wodurch die Freiheiten für die Wahl des Rotorinnendurchmessers sehr groß sind, so dass eine aus dynamischen Gesichtspunkten optimierte Lösung erreicht werden kann. Ansonsten ist die Funktionsweise dem Fachmann bekannt und braucht in der vorliegenden Beschreibung nicht näher erläutert zu werden.In addition, it may be advantageous if the pistons are formed by a plurality of sub-pistons, since thus results in a smaller rotor diameter with the same piston surfaces. With a choice of different partial piston numbers per piston, an equivalent effect can be achieved, which corresponds to different piston diameters. Also, the electric motor can be mounted on the other side, whereby the freedoms for the choice of the rotor inner diameter are very large, so that an optimized solution from a dynamic point of view can be achieved. Otherwise, the operation is known in the art and need not be explained in detail in the present description.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102007026183 A1 [0002] DE 102007026183 A1 [0002]
Claims (15)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014207234.4A DE102014207234A1 (en) | 2014-04-15 | 2014-04-15 | Electrohydraulic actuator |
PCT/EP2015/057554 WO2015158576A2 (en) | 2014-04-15 | 2015-04-08 | Electrohydraulic actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014207234.4A DE102014207234A1 (en) | 2014-04-15 | 2014-04-15 | Electrohydraulic actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102014207234A1 true DE102014207234A1 (en) | 2015-10-15 |
Family
ID=52814116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102014207234.4A Withdrawn DE102014207234A1 (en) | 2014-04-15 | 2014-04-15 | Electrohydraulic actuator |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102014207234A1 (en) |
WO (1) | WO2015158576A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017216501A1 (en) | 2017-09-18 | 2019-03-21 | Continental Teves Ag & Co. Ohg | Electrohydraulic actuator and method for operating an electrohydraulic actuator |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3321729A1 (en) * | 1983-06-16 | 1984-12-20 | Alfred Teves Gmbh, 6000 Frankfurt | TWO-CIRCLE MAIN CYLINDERS |
DE102007026183A1 (en) | 2006-06-06 | 2007-12-13 | Honda Motor Co., Ltd. | braking system |
DE102010039916A1 (en) * | 2009-09-01 | 2011-03-03 | Continental Teves Ag & Co. Ohg | linear unit |
DE102011106626A1 (en) * | 2011-06-17 | 2012-12-20 | Ipgate Ag | High dynamic short-drive assembly for brake system of motor car, has hydraulic actuator that is partially provided in inside electric motor provided with rotor in cavity, and integrated transmission for actuating hydraulic actuator |
DE102013200217A1 (en) * | 2012-01-24 | 2013-07-25 | Schaeffler Technologies AG & Co. KG | Operating device for operating disk brake of crank shaft belt pulley in motor vehicle, has slave pistons, and slave cylinders loaded with operating pressure over electrohydraulic actuator having master cylinders with transmitter pistons |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19850384A1 (en) * | 1997-11-21 | 1999-08-12 | Continental Teves Ag & Co Ohg | Electrically operated braking device for motor vehicles |
DE102005059609A1 (en) * | 2005-12-12 | 2007-06-14 | Ipgate Ag | Pedalarretierung |
DE102011118365A1 (en) * | 2011-11-14 | 2013-05-16 | Ipgate Ag | Electronically controllable brake confirmation system |
-
2014
- 2014-04-15 DE DE102014207234.4A patent/DE102014207234A1/en not_active Withdrawn
-
2015
- 2015-04-08 WO PCT/EP2015/057554 patent/WO2015158576A2/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3321729A1 (en) * | 1983-06-16 | 1984-12-20 | Alfred Teves Gmbh, 6000 Frankfurt | TWO-CIRCLE MAIN CYLINDERS |
DE102007026183A1 (en) | 2006-06-06 | 2007-12-13 | Honda Motor Co., Ltd. | braking system |
DE102010039916A1 (en) * | 2009-09-01 | 2011-03-03 | Continental Teves Ag & Co. Ohg | linear unit |
DE102011106626A1 (en) * | 2011-06-17 | 2012-12-20 | Ipgate Ag | High dynamic short-drive assembly for brake system of motor car, has hydraulic actuator that is partially provided in inside electric motor provided with rotor in cavity, and integrated transmission for actuating hydraulic actuator |
DE102013200217A1 (en) * | 2012-01-24 | 2013-07-25 | Schaeffler Technologies AG & Co. KG | Operating device for operating disk brake of crank shaft belt pulley in motor vehicle, has slave pistons, and slave cylinders loaded with operating pressure over electrohydraulic actuator having master cylinders with transmitter pistons |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017216501A1 (en) | 2017-09-18 | 2019-03-21 | Continental Teves Ag & Co. Ohg | Electrohydraulic actuator and method for operating an electrohydraulic actuator |
Also Published As
Publication number | Publication date |
---|---|
WO2015158576A3 (en) | 2015-12-17 |
WO2015158576A2 (en) | 2015-10-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R120 | Application withdrawn or ip right abandoned |