DE102012218908A1 - Vehicle transmission for vehicles, has two hydrodynamic elements, where first hydrodynamic element is used for braking as retarder and another hydrodynamic element is used as starting element - Google Patents
Vehicle transmission for vehicles, has two hydrodynamic elements, where first hydrodynamic element is used for braking as retarder and another hydrodynamic element is used as starting element Download PDFInfo
- Publication number
- DE102012218908A1 DE102012218908A1 DE201210218908 DE102012218908A DE102012218908A1 DE 102012218908 A1 DE102012218908 A1 DE 102012218908A1 DE 201210218908 DE201210218908 DE 201210218908 DE 102012218908 A DE102012218908 A DE 102012218908A DE 102012218908 A1 DE102012218908 A1 DE 102012218908A1
- Authority
- DE
- Germany
- Prior art keywords
- hydrodynamic
- retarder
- braking
- vehicle transmission
- elements
- 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- Withdrawn
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Classifications
-
- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
- F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- 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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
-
- 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
- B60T10/00—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
- B60T10/02—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrodynamic brake
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/04—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades causing a directed flow, e.g. Föttinger type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
Description
Die Erfindung betrifft ein Getriebe für Fahrzeuge nach dem Oberbegriff des Anspruchs 1. The invention relates to a transmission for vehicles according to the preamble of claim 1.
Es ist bekannt, dass in Nutzfahrzeuggetrieben integrierte, verschleißfrei arbeitende, hydrodynamische Dauerbremselemente eingesetzt werden. Durch diese so genannten Retarder kann eine hohe Bremsleistung mit kurzen Ansprechzeiten erreicht werden, womit der Verschleiß der Radbremse reduziert werden kann. Dabei wird die Strömungsenergie einer Flüssigkeit zum Bremsen verwendet, wobei das physikalische Wirkprinzip dem einer hydrodynamischen Kupplung mit feststehender Turbine entspricht. Demnach weist ein hydrodynamischer Retarder einen sich im Leistungsfluss befindlichen Rotor und einen mit dem Retardergehäuse fest verbundenen Stator auf. Beim Betätigen der Bremse wird eine der gewünschten Bremsleistung entsprechende Ölmenge in den Schaufelraum eingebracht, wobei der drehende Rotor das Öl beschleunigt und an den Stator übergibt. Hierdurch wird eine Bremswirkung auf die Rotorwelle erzeugt. It is known that integrated, wear-free, hydrodynamic permanent brake elements are used in commercial vehicle transmissions. By means of these so-called retarders, a high braking performance with short response times can be achieved, whereby the wear of the wheel brake can be reduced. In this case, the flow energy of a liquid is used for braking, wherein the physical action principle corresponds to that of a hydrodynamic coupling with fixed turbine. Accordingly, a hydrodynamic retarder has a rotor located in the power flow and a stator fixedly connected to the retarder housing. Upon actuation of the brake, a quantity of oil corresponding to the desired braking power is introduced into the blade space, wherein the rotating rotor accelerates the oil and transfers it to the stator. As a result, a braking effect is generated on the rotor shaft.
Hydrodynamische Elemente können allerdings nicht nur zum Bremsen verwendet werden. Zum Beispiel in der Schrift
Der Erfindung liegt die Aufgabe zugrunde, ein Getriebe mit einem hydrodynamischem Element, einem Retarder, mit mindestens einem weiteren hydrodynamischen Element, das als Anfahrelement dient, zu erweitern und so zu gestalten, dass sowohl der Konstruktionsaufwand als auch der Bauraumbedarf gering gehalten werden. The invention has for its object to expand a transmission with a hydrodynamic element, a retarder, with at least one further hydrodynamic element which serves as a starting element, and to be designed so that both the design effort and the space requirement are kept low.
Die Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen gehen aus den Unteransprüchen hervor. The object is solved by the features of patent claim 1. Further embodiments of the invention will become apparent from the dependent claims.
Gemäß der vorliegenden Erfindung wird dies dadurch erreicht, dass ein Fahrzeuggetriebe für Nutzfahrzeuge mit zwei hydrodynamischen Elementen vorgeschlagen wird, wobei ein hydrodynamisches Element zum Bremsen als Retarder und ein hydrodynamisches Element als Anfahrelement dient, wobei beide hydrodynamischen Elemente ursprünglich als hydrodynamisches Element zum Bremsen, als Retarder, konstruiert waren. Die hydrodynamischen Elemente, Retarder und Anfahrelement, sind jeweils mit einer zusätzlichen Stirnradstufe versehen, die vorzugsweise nicht identisch sind. Die Stirnradstufe des Anfahrelements hat vorzugsweise eine höhere Untersetzung, als die Stirnradstufe des Retarders, da das Anfahrelement in Richtung Stillstand abgebremst wird, und damit Drehzahl verliert. Beide hydrodynamischen Elemente können von der gleichen Steuerungseinrichtung gesteuert werden, da nicht gleichzeitig angefahren und gebremst werden muss und damit immer nur ein hydrodynamisches Element betätigt werden muss. Dabei kann z.B. eine bereits bestehende Steuerungseinrichtung eines hydrodynamischen Elements mit der Funktion als Retarder zum Bremsen übernommen werden und durch umschalten eines Umschaltventils abwechselnd beide hydrodynamischen Elemente ansteuern. Die hydrodynamischen Elemente können von vorhandenen Retardern abgeleitet werden. According to the present invention, this is achieved by proposing a vehicle transmission for commercial vehicles with two hydrodynamic elements, wherein a hydrodynamic element serves as a retarder for braking and as a starting element for a hydrodynamic element, both hydrodynamic elements originally as a hydrodynamic element for braking, as a retarder , were designed. The hydrodynamic elements, retarder and starting element are each provided with an additional spur gear, which are preferably not identical. The spur gear stage of the starting element preferably has a higher reduction than the spur gear of the retarder, since the starting element is braked in the direction of standstill, and thus loses speed. Both hydrodynamic elements can be controlled by the same control device, since it is not necessary to approach and brake simultaneously, and therefore only one hydrodynamic element has to be actuated. In this case, e.g. an existing control device of a hydrodynamic element with the function of a retarder for braking are taken over and by switching over a switching valve alternately drive both hydrodynamic elements. The hydrodynamic elements can be derived from existing retarders.
Der Retarder und das Anfahrelement können je einen festen oder einen feststellbaren Stator besitzen. Kann der Stator der hydrodynamischen Elemente variabel festgestellt werden, können die hydrodynamischen Elemente dauerhaft befüllt sein und die Steuerung kann über die Feststellung des jeweiligen Stators stattfinden. The retarder and the starting element can each have a fixed or a lockable stator. If the stator of the hydrodynamic elements can be variably determined, the hydrodynamic elements can be permanently filled and the control can take place via the determination of the respective stator.
Um erfindungsgemäß möglichst wenig neue Komponenten zu verbauen sind in einer bevorzugten Ausführungsform das hydrodynamische Element zum Bremsen und das hydrodynamische Element, das als Anfahrelement dient, baugleich als Retarder ausgeführt. In order to obstruct as few new components as possible according to the invention, in a preferred embodiment, the hydrodynamic element for braking and the hydrodynamic element, which serves as a starting element, are constructed identically as retarders.
In einer bevorzugten Ausführungsform sind die Retarder exzentrisch zu einer Antriebswelle gelagert. Die Retarder können ebenfalls exzentrisch zu einer Abtriebswelle gelagert sein oder auch gleichzeitig exzentrisch zu einer Antriebswelle und einer Abtriebswelle gelagert sein. In a preferred embodiment, the retarders are mounted eccentrically to a drive shaft. The retarder can also be mounted eccentrically to an output shaft or simultaneously be mounted eccentrically to a drive shaft and an output shaft.
Im weiteren Verlauf wird ein hydrodynamisches Element zum Bremsen Retarder genannt und ein hydrodynamisches Element zum Anfahren als Anfahrelement bezeichnet. In the further course, a hydrodynamic element for braking is called a retarder and a hydrodynamic element for starting is called a starting element.
Die Erfindung wird im Folgenden anhand der beigefügten Figur näher erläutert: The invention will be explained in more detail below with reference to the appended FIGURE.
In der
Zum Anfahren eines Fahrzeugs wird nun bei geöffneter Überbrückungskupplung
Der Retarder
Das Anfahrelement
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Getriebemodul transmission module
- 22
- Antriebswelle drive shaft
- 44
- Motor engine
- 66
- Hohlrad ring gear
- 88th
- Überbrückungskupplung lock-up clutch
- 1010
- Planetenräder planetary gears
- 1212
- Planetenträger planet carrier
- 1414
- Abtriebswelle/Getriebeeingangswelle Output shaft / gearbox input shaft
- 1616
- Hauptgetriebe main gearbox
- 1818
- Sonnenrad sun
- 2020
- Ritzel pinion
- 2222
- Antriebsrad drive wheel
- 2424
- Zwischenrad idler
- 2626
- Rotor rotor
- 2828
- hydrodynamisches Element (Retarder) hydrodynamic element (retarder)
- 3030
- Antriebsrad drive wheel
- 3232
- Rotor rotor
- 3434
- hydrodynamisches Element (Anfahrelement) hydrodynamic element (starting element)
- 3636
- Stator stator
- 3838
- Stator stator
- 4040
- Steuerungseinrichtung control device
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 19817865 A1 [0003] DE 19817865 A1 [0003]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210218908 DE102012218908A1 (en) | 2012-10-17 | 2012-10-17 | Vehicle transmission for vehicles, has two hydrodynamic elements, where first hydrodynamic element is used for braking as retarder and another hydrodynamic element is used as starting element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210218908 DE102012218908A1 (en) | 2012-10-17 | 2012-10-17 | Vehicle transmission for vehicles, has two hydrodynamic elements, where first hydrodynamic element is used for braking as retarder and another hydrodynamic element is used as starting element |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012218908A1 true DE102012218908A1 (en) | 2014-04-17 |
Family
ID=50383250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210218908 Withdrawn DE102012218908A1 (en) | 2012-10-17 | 2012-10-17 | Vehicle transmission for vehicles, has two hydrodynamic elements, where first hydrodynamic element is used for braking as retarder and another hydrodynamic element is used as starting element |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102012218908A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015203386A1 (en) * | 2015-02-25 | 2016-08-25 | Zf Friedrichshafen Ag | Starting unit for a drive train of a motor vehicle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3415909A1 (en) * | 1984-04-28 | 1985-10-31 | J.M. Voith Gmbh, 7920 Heidenheim | POWERTRAIN TRANSMISSION |
DE3806719A1 (en) * | 1987-03-10 | 1988-09-22 | Zahnradfabrik Friedrichshafen | Brake system for full-track vehicles |
DE4307222A1 (en) * | 1993-03-09 | 1994-09-15 | Voith Gmbh J M | Hydrodynamic vehicle gearbox |
DE19817865A1 (en) | 1998-04-22 | 1999-10-28 | Zahnradfabrik Friedrichshafen | Gears for commercial vehicles, especially for local buses fitted with hydrodynamic retarders |
DE10033790A1 (en) * | 2000-07-03 | 2002-01-31 | Voith Turbo Kg | Hydrodynamic multi-circuit transmission, in particular 2-speed turbo transmission |
-
2012
- 2012-10-17 DE DE201210218908 patent/DE102012218908A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3415909A1 (en) * | 1984-04-28 | 1985-10-31 | J.M. Voith Gmbh, 7920 Heidenheim | POWERTRAIN TRANSMISSION |
DE3806719A1 (en) * | 1987-03-10 | 1988-09-22 | Zahnradfabrik Friedrichshafen | Brake system for full-track vehicles |
DE4307222A1 (en) * | 1993-03-09 | 1994-09-15 | Voith Gmbh J M | Hydrodynamic vehicle gearbox |
DE19817865A1 (en) | 1998-04-22 | 1999-10-28 | Zahnradfabrik Friedrichshafen | Gears for commercial vehicles, especially for local buses fitted with hydrodynamic retarders |
DE10033790A1 (en) * | 2000-07-03 | 2002-01-31 | Voith Turbo Kg | Hydrodynamic multi-circuit transmission, in particular 2-speed turbo transmission |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015203386A1 (en) * | 2015-02-25 | 2016-08-25 | Zf Friedrichshafen Ag | Starting unit for a drive train of a motor vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |