DE102018126552A1 - Hydraulic transmission actuator and assembly with such a transmission actuator and a transmission for a drive train of a motor vehicle - Google Patents
Hydraulic transmission actuator and assembly with such a transmission actuator and a transmission for a drive train of a motor vehicle Download PDFInfo
- Publication number
- DE102018126552A1 DE102018126552A1 DE102018126552.2A DE102018126552A DE102018126552A1 DE 102018126552 A1 DE102018126552 A1 DE 102018126552A1 DE 102018126552 A DE102018126552 A DE 102018126552A DE 102018126552 A1 DE102018126552 A1 DE 102018126552A1
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- Germany
- Prior art keywords
- pressure
- hydraulic
- transmission
- transmission actuator
- pump
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
- F16H63/3026—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
- F16H2061/301—Hydraulic or pneumatic motors or related fluid control means therefor for power assistance, i.e. servos with follow up action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
- F16H61/0031—Supply of control fluid; Pumps therefore using auxiliary pumps, e.g. pump driven by a different power source than the engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
- F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
- F16H61/686—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with orbital gears
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Transmission Device (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Die Erfindung betrifft einen hydraulischen Getriebeaktuator (1) mit einer Hydraulikpumpe, die vier Druckausgänge (8) aufweist.The invention relates to a hydraulic transmission actuator (1) with a hydraulic pump which has four pressure outlets (8).
Description
Die Erfindung betrifft einen hydraulischen Getriebeaktuator, der insbesondere zum unabhängigen Schalten von mehreren Kupplungen eines Schaltgetriebes geeignet ist, insbesondere eines Planetenradgetriebes, wie es im Antriebsstrang eines Kraftfahrzeugs verwendet wird.The invention relates to a hydraulic transmission actuator which is particularly suitable for the independent shifting of several clutches of a manual transmission, in particular a planetary gear transmission, as is used in the drive train of a motor vehicle.
Bekannt sind Getriebeaktuatoren, die eine Hydraulikpumpe aufweisen, die insbesondere elektrisch angetrieben werden kann. Die Hydraulikpumpe weist zwei Druckausgänge auf, die mit einem ersten und einem zweiten Druckanschluss des Getriebeaktuators verbunden sind und den Druckanschlüssen einen Hydraulikfluiddruck und -strom bereitstellen können. Mit dem Hydraulikfluiddruck und -strom können zwei Druckkolben zwischen einer unbetätigten und einer betätigten Stellung stufenlos verstellt werden. Die Druckkolben dienen zur Betätigung von Reibungskupplungen, die beispielsweise Teil des Doppelkupplungsgetriebes sind.Gearbox actuators are known which have a hydraulic pump, which can in particular be driven electrically. The hydraulic pump has two pressure outputs, which are connected to a first and a second pressure connection of the transmission actuator and can provide a hydraulic fluid pressure and flow to the pressure connections. With the hydraulic fluid pressure and flow, two pressure pistons can be continuously adjusted between an unactuated and an actuated position. The pressure pistons are used to actuate friction clutches, which are part of the double clutch transmission, for example.
Um den Druck an den Druckanschlüssen steuern oder regeln zu können, ist zwischen jedem Druckausgang und dem zugeordneten Druckanschluss ein Proportionalventil angeordnet.In order to be able to control or regulate the pressure at the pressure connections, a proportional valve is arranged between each pressure outlet and the assigned pressure connection.
Die Hydraulikpumpe kann in vorteilhafter Weise als Rollenzellenpumpe oder Flügelzellenpumpe ausgeführt werden.The hydraulic pump can advantageously be designed as a roller cell pump or vane pump.
Ein solcher Getriebeaktuator kann jedoch nicht mehr eingesetzt werden, wenn mit ihm mehr als zwei Kupplungen unabhängig voneinander geschaltet werden sollen. Mehr als zwei Kupplungen unabhängig voneinander müssen bei Getrieben geschaltet werden, die mehrere Planetenradsätze aufweisen, von denen eines der Bauteile Hohlrad, Sonnenrad und Planetenradträger mittels einer Kupplung schaltbar drehfest abgestützt oder mit einem anderen Bauteil verbunden werden kann, und zusätzlich je nach Bedarf ein Verbrennungsmotor und/oder ein Elektromotor zugeschaltet bzw. getrennt werden kann.However, such a transmission actuator can no longer be used if it is to be used to switch more than two clutches independently of one another. More than two clutches independently of one another must be shifted in gearboxes that have several planetary gear sets, one of the components of the ring gear, sun gear and planet gear carrier can be rotatably supported by means of a clutch or connected to another component, and additionally an internal combustion engine and / or an electric motor can be switched on or disconnected.
Bei einem konkreten Anwendungsfall, bei dem ein Getriebe des Typs, wie es beispielsweise in der
Die Aufgabe der Erfindung besteht darin, einen Getriebeaktuator zu schaffen, der einen einfachen Aufbau hat und es ermöglicht, mehr als zwei Kupplungen gleichzeitig zu betätigen.The object of the invention is to provide a transmission actuator which has a simple structure and makes it possible to actuate more than two clutches simultaneously.
Zur Lösung dieser Aufgabe ist erfindungsgemäß ein Getriebeaktuator vorgesehen, der eine elektrisch angetriebene Hydraulikpumpe aufweist, die vier Druckausgänge aufweist. Hierdurch ist ein kompakter Getriebeaktuator geschaffen, der mit einem einzigen Antrieb in der Lage ist, vier Hydraulikkreise mit Druck zu beaufschlagen.To achieve this object, a gear actuator is provided according to the invention which has an electrically driven hydraulic pump which has four pressure outlets. This creates a compact transmission actuator that is able to pressurize four hydraulic circuits with a single drive.
Gemäß einer Ausführungsform ist vorgesehen, dass die Hydraulikpumpe zwei nebeneinander angeordnete Pumpenkörper aufweist, die jeweils zwei Druckausgänge aufweisen. Eine solche Anordnung eines Antriebsmotors mit mehreren Hydraulikpumpen und den Rotoren der Hydraulikpumpen auf einer gemeinsamen Welle zeichnet sich durch einen geringen axiale Bauraum aus.According to one embodiment, it is provided that the hydraulic pump has two pump bodies which are arranged next to one another and each have two pressure outlets. Such an arrangement of a drive motor with several hydraulic pumps and the rotors of the hydraulic pumps on a common shaft is characterized by a small axial installation space.
Gemäß einer alternativen Ausführungsform ist vorgesehen, dass die Hydraulikpumpe einen einzigen Pumpenkörper aufweist, der vier Druckausgänge aufweist.According to an alternative embodiment, it is provided that the hydraulic pump has a single pump body which has four pressure outlets.
Vorzugsweise ist vorgesehen, dass jeder Druckausgang mit einem Druckanschluss des Getriebeaktuators verbunden ist, wobei zwischen dem Druckausgang und dem Druckanschluss jeweils ein Abzweig zu einem Proportionalventil angeordnet ist, das mit dem Vorratsbehälter verbunden ist. Dies ermöglicht, dass den Druck am Druckanschluss zu steuern (und zu regeln, wenn ein Drucksensor vorgesehen ist).It is preferably provided that each pressure outlet is connected to a pressure connection of the transmission actuator, a branch to a proportional valve being connected between the pressure outlet and the pressure connection and being connected to the reservoir. This allows the pressure at the pressure port to be controlled (and regulated if a pressure sensor is provided).
Um zu gewährleisten, dass der Hydraulikdruck auch dann langfristig aufrechterhalten werden kann, wenn die Hydraulikpumpe abgeschaltet ist, ist zwischen dem Druckanschluss und dem Proportionalventil ein Rückschlagventil angeordnet.In order to ensure that the hydraulic pressure can be maintained in the long term even when the hydraulic pump is switched off, a check valve is arranged between the pressure connection and the proportional valve.
Bei der Hydraulikpumpe kann es sich insbesondere um eine Rollenzellenpumpe oder eine Flügelzellenpumpe handeln, die kompakt sind und sich durch eine hohe Leistungsfähigkeit auszeichnen.The hydraulic pump can in particular be a roller cell pump or a vane pump, which are compact and are characterized by high performance.
Der erfindungsgemäße Getriebeaktuator kann gemäß einer Ausgestaltung der Erfindung Teil einer Baugruppe sein, die ein Getriebe für einen Antriebsstrang eines Kraftfahrzeugs aufweist, wobei das Getriebe wenigstens eine Kupplung und einem Bremse aufweist und der Getriebeaktuator die wenigstens eine Kupplung und die wenigstens eine Bremse betätigen kann. Aufgrund seiner vier Druckanschlüsse kann der Getriebeaktuator die verschiedenen Kupplungen und Bremsen unabhängig voneinander ansteuern.According to one embodiment of the invention, the transmission actuator according to the invention can be part of an assembly which has a transmission for a drive train of a motor vehicle, the transmission having at least one clutch and a brake and the transmission actuator being able to actuate the at least one clutch and the at least one brake. Thanks to its four pressure connections, the transmission actuator can control the various clutches and brakes independently of one another.
Dabei kann vorgesehen sein, dass zwei der Druckanschlüsse mit jeweils einer Kupplung des Getriebes verbunden sind und zwei der Druckanschlüsse mit jeweils einer Bremse des Getriebes verbunden sind. Insbesondere kann vorgesehen sein, dass die Bremsen jeweils einem Planetenradsatz zugeordnet sind und die Kupplungen einem Verbrennungsmotor und einem Elektromotor zugeordnet sind. It can be provided that two of the pressure connections are each connected to a clutch of the transmission and two of the pressure connections are each connected to a brake of the transmission. In particular, it can be provided that the brakes are each assigned to a planetary gear set and the clutches are assigned to an internal combustion engine and an electric motor.
Die Erfindung wird nachfolgend anhand zweier Ausführungsformen beschrieben, die in den beigefügten Zeichnungen dargestellt sind. In diesen zeigen:
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1 in einer perspektivischen Ansicht einen hydraulischen Getriebeaktuator gemäß der Erfindung; -
2 einen Schaltplan eines hydraulischen Getriebeaktuators gemäß einer ersten Ausführungsform der Erfindung; und -
3 einen Schaltplan eines hydraulischen Getriebeaktuators gemäß einer zweiten Ausführungsform der Erfindung.
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1 in a perspective view of a hydraulic transmission actuator according to the invention; -
2nd a circuit diagram of a hydraulic transmission actuator according to a first embodiment of the invention; and -
3rd a circuit diagram of a hydraulic transmission actuator according to a second embodiment of the invention.
In
Auf einer Seite der Hydraulikpumpe
An die Druckanschlüsse
In einem Anwendungsbeispiel können die Druckanschlüsse
In
Die Hydraulikpumpe
Die Hydraulikpumpe ist als Rollenzellenpumpe ausgeführt, so dass sie einen robusten Aufbau mit einer hohen Förderleistung vereinbart.The hydraulic pump is designed as a roller cell pump, so that it combines a robust construction with a high delivery rate.
Jeder Pumpenkörper
Alle Druckausgänge
Die Druckausgänge
Zwischen jedem der Druckausgänge
Mit den Proportionalventilen
In Verbindung mit Drucksensoren, die hier nicht gezeigt sind, kann eine Regelung des Fluiddrucks im Kreis der Druckanschlüsse
Allen Kreisen der Hydraulik-Druckanschlüsse
Da jeder Pumpenkörper
In
Der Unterschied zwischen der ersten und der zweiten Ausführungsform besteht darin, dass bei der zweiten Ausführungsform alle vier Druckausgänge
Der besondere Vorteil des erfindungsgemäßen Getriebeaktuators besteht darin, dass vier Druckanschlüsse
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 documents listed by the applicant has been generated automatically and is only included 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 PatentliteraturPatent literature cited
- DE 102014204009 A1 [0006]DE 102014204009 A1 [0006]
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018126552.2A DE102018126552A1 (en) | 2018-10-24 | 2018-10-24 | Hydraulic transmission actuator and assembly with such a transmission actuator and a transmission for a drive train of a motor vehicle |
CN201910952879.2A CN111089162A (en) | 2018-10-24 | 2019-10-09 | Hydraulic transmission actuator, assembly with same and transmission for power train |
KR1020190128237A KR20200047338A (en) | 2018-10-24 | 2019-10-16 | Hydraulic transmission actuator and assembly having a transmission actuator of this kind and a transmission for a drive train of a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018126552.2A DE102018126552A1 (en) | 2018-10-24 | 2018-10-24 | Hydraulic transmission actuator and assembly with such a transmission actuator and a transmission for a drive train of a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102018126552A1 true DE102018126552A1 (en) | 2020-04-30 |
Family
ID=70393022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018126552.2A Ceased DE102018126552A1 (en) | 2018-10-24 | 2018-10-24 | Hydraulic transmission actuator and assembly with such a transmission actuator and a transmission for a drive train of a motor vehicle |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR20200047338A (en) |
CN (1) | CN111089162A (en) |
DE (1) | DE102018126552A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD89081A5 (en) * | 1971-05-06 | 1972-04-05 | Fa Josef Haamann | Hydraulic device for a mobile hoist |
EP2532914A1 (en) * | 2011-06-07 | 2012-12-12 | FTE automotive GmbH | Hydraulic actuation device for actuating clutches, particularly in a multi-clutch transmission system for motor vehicles |
DE102014204009A1 (en) | 2014-03-05 | 2015-09-10 | Schaeffler Technologies AG & Co. KG | Multi-speed planetary gear system as a component of the drive train of a motor vehicle |
WO2015161939A1 (en) * | 2014-04-22 | 2015-10-29 | Robert Bosch Automotive Steering Gmbh | Vane pump with adjustable delivery volume |
DE102016000708A1 (en) * | 2016-01-26 | 2017-07-27 | Fte Automotive Gmbh | Actuator, in particular slave cylinder, for a device for clutch actuation in a motor vehicle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011100836A1 (en) * | 2011-05-06 | 2012-11-08 | Audi Ag | Hydraulic circuit, method of operation |
DE102013000157B3 (en) * | 2013-01-09 | 2014-01-23 | Fte Automotive Gmbh | Hydraulic actuating device for the actuation of at least one friction clutch and at least one transmission actuator in a motor vehicle |
CN107532709A (en) * | 2015-04-17 | 2018-01-02 | 博格华纳公司 | Directional valve for multiple pressure hydraulic control system |
CN107438732A (en) * | 2015-04-17 | 2017-12-05 | 博格华纳公司 | Multiple pressure hydraulic control system for step gear automatic transmission |
US20180135743A1 (en) * | 2015-04-17 | 2018-05-17 | Borgwarner Inc. | Multi-pressure hydraulic control system for a continuously variable automatic transmission |
CN107407410A (en) * | 2015-04-17 | 2017-11-28 | 博格华纳公司 | More pressure hydraulic control systems for double-clutch automatic gearbox |
DE112016001216T5 (en) * | 2015-04-17 | 2017-12-21 | Borgwarner Inc. | DISPLACEMENT PUMP ARRANGEMENT FOR DRIVE TRAVEL SYSTEMS AND HYDRAULIC CONTROL SYSTEM THAT CONSISTS OF THIS |
-
2018
- 2018-10-24 DE DE102018126552.2A patent/DE102018126552A1/en not_active Ceased
-
2019
- 2019-10-09 CN CN201910952879.2A patent/CN111089162A/en active Pending
- 2019-10-16 KR KR1020190128237A patent/KR20200047338A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD89081A5 (en) * | 1971-05-06 | 1972-04-05 | Fa Josef Haamann | Hydraulic device for a mobile hoist |
EP2532914A1 (en) * | 2011-06-07 | 2012-12-12 | FTE automotive GmbH | Hydraulic actuation device for actuating clutches, particularly in a multi-clutch transmission system for motor vehicles |
DE102011105648A1 (en) * | 2011-06-07 | 2012-12-13 | Fte Automotive Gmbh | Hydraulic actuator for the actuation of clutches in particular a multi-clutch transmission for motor vehicles |
DE102014204009A1 (en) | 2014-03-05 | 2015-09-10 | Schaeffler Technologies AG & Co. KG | Multi-speed planetary gear system as a component of the drive train of a motor vehicle |
WO2015161939A1 (en) * | 2014-04-22 | 2015-10-29 | Robert Bosch Automotive Steering Gmbh | Vane pump with adjustable delivery volume |
DE102016000708A1 (en) * | 2016-01-26 | 2017-07-27 | Fte Automotive Gmbh | Actuator, in particular slave cylinder, for a device for clutch actuation in a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
KR20200047338A (en) | 2020-05-07 |
CN111089162A (en) | 2020-05-01 |
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