DE10325220A1 - Drive train for vehicle with hydraulically controllable differential gearbox has hydraulic circuit with hydraulic motor that forms drive device of second of two power paths - Google Patents
Drive train for vehicle with hydraulically controllable differential gearbox has hydraulic circuit with hydraulic motor that forms drive device of second of two power paths Download PDFInfo
- Publication number
- DE10325220A1 DE10325220A1 DE2003125220 DE10325220A DE10325220A1 DE 10325220 A1 DE10325220 A1 DE 10325220A1 DE 2003125220 DE2003125220 DE 2003125220 DE 10325220 A DE10325220 A DE 10325220A DE 10325220 A1 DE10325220 A1 DE 10325220A1
- Authority
- DE
- Germany
- Prior art keywords
- hydraulic
- drive train
- differential
- output shafts
- driven
- 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- Withdrawn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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
-
- 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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
- B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
- B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
- B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
- B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
- B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
- B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
- B62D11/183—Control systems therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/24—Endless track steering specially adapted for vehicles having both steerable wheels and endless track
-
- 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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
- F16H48/34—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H2048/204—Control of arrangements for suppressing differential actions
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2071—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using three freewheel mechanism
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/26—Arrangements for suppressing or influencing the differential action, e.g. locking devices using fluid action, e.g. viscous clutches
-
- 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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
- F16H48/32—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using fluid pressure actuators
Abstract
Description
Die vorliegende Erfindung betrifft einen Antriebsstrang für Fahrzeuge mit einem Differentialgetriebe gemäß dem Oberbegriff des Patentanspruches 1.The The present invention relates to a powertrain for vehicles with a differential gear according to the preamble of claim 1.
Differentialgetriebe sind Getriebe zur Aufteilung eines Eingangsdrehmoments in zwei Ausgangsdrehmomente. Differentialgetriebe kommen als Achsgetriebe, insbesondere Hinterachsgetriebe bei Fahrzeugen zum Einsatz. Bei Allrad-Fahrzeugen kommen Differentialgetriebe auch zur Drehmomentaufteilung zwischen Vorderachse und Hinterachse zum Einsatz.differential gear are gearboxes for splitting an input torque into two output torques. Differential gear come as axle, in particular Hinterachsgetriebe used on vehicles. In four-wheel vehicles come differential gear Also for torque distribution between the front and rear axles for Commitment.
Aus dem Nutzfahrzeugbereich haben „Differentialsperren" Eingang in die PKW Technik gefunden. Das Grundprinzip von Differentialsperren besteht darin, die beiden Ausgangswellen in ihrer Drehzahl miteinander zu koppeln bzw. Differenzdrehzahlen zwischen den beiden Ausgangswellen zu begrenzen. Bei Fahrzeugen, bei denen eine Differentialsperre vorgesehen ist, ist die Differentialsperre üblicherweise bedarfsweise zu- und abschaltbar. Bei zugeschalteter Differentialsperre besteht zwar bei Kurvenfahrt das Problem, dass an den Rädern hoher Verschleiß auftritt. Ein wesentlicher Vorteil be steht jedoch darin, dass sich einseitiges Durchdrehen eines Rades vermeiden und somit eine gute Traktion erreichen lässt, was insbesondere bei schnellem Beschleunigen des Fahrzeugs wichtig ist.Out The commercial vehicle sector has "differential locks" input into the car Technology found. The basic principle of differential locks exists in it, the two output shafts in their speed with each other couple or differential speeds between the two output shafts to limit. For vehicles where a differential lock is provided, the differential lock is usually required as required. and can be switched off. When the differential lock is switched on, it is true when cornering the problem that occurs at the wheels high wear. One major advantage, however, is that one-sided Avoid turning a wheel and thus achieve good traction leaves, which is especially important for fast acceleration of the vehicle is.
Bei höherwertigen Fahrzeugen bzw. bei Motorsportfahrzeugen werden "Differentialsperren" auch zur Regelung der Fahrdynamik des Fahrzeugs eingesetzt. Ziel hierbei ist es, in Abhängigkeit vom Fahrzustand Antriebsmomente „bei Bedarf" zwischen den beiden Abtriebswellen "zu verschieben", um beispielsweise bei schneller Kurvenfahrt maximalen Vortrieb zu erreichen und gleichzeitig das Fahrzeug gegen Übersteuern bzw. Untersteuern zu stabilisieren. Derartige "momentenverteilende" Differentialgetrieben basieren üblicherweise auf Getrieben und Kupplungen, mit denen die eine Abtriebswelle abgebremst und die andere Abtriebswelle beschleunigt wird. Die sich an den Reifen einstellenden unterschiedlichen Längsschlupfwerte führen zu einer unterschiedlichen Antriebsmomentenverteilung an den beiden Abtriebswellen, was gezielt zur Stabilisierung der Gierbewegung des Fahrzeuges verwendet werden kann.at high-order Vehicles or motor sport vehicles are "differential locks" also to control the driving dynamics of the Vehicle used. The goal here is, depending on Driving condition "on demand" between the two Output shafts "too postpone by For example, to achieve maximum propulsion when cornering fast and at the same time the vehicle against oversteer or understeer to stabilize. Such "torque-distributing" differential gears are usually based on transmissions and clutches, with which the one output shaft braked and the other output shaft is accelerated. The to the Tire adjusting different longitudinal slip values lead to a different drive torque distribution at the two Output shafts, which specifically to stabilize the yawing motion of the vehicle can be used.
Die
Bei
dem in
Aufgabe der Erfindung ist es, einen Antriebsstrang für Fahrzeuge mit einem Differential zu schaffen, das für eine aktive Fahrdynamikregelung geeignet ist und das einen vergleichsweise geringen Bauaufwand erfordert und eine einfache Regelung ermöglicht.task The invention is a powertrain for vehicles with a differential to create that for an active vehicle dynamics control is suitable and the one comparatively requires low construction costs and allows easy control.
Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.These The object is solved by the features of claim 1. advantageous Refinements and developments of the invention are the dependent claims remove.
Die Erfindung geht von einem Antriebsstrang für Fahrzeuge aus, mit einem Differentialgetriebe, das in herkömmlicher Weise einen Getriebeeingang, einen Differentialkorb sowie eine erste und eine zweite Getriebeausgangswelle aufweist, die über Ausgleichsräder gegenläufig drehbar miteinander gekoppelt sind. Die Ausgleichsräder sind in dem Differentialkorb drehbar gelagert. Wie bei herkömmlichen Fahrzeugen bildet das Differentialgetriebe einen "Drehmomentübertragungspfad", der im Folgenden als "erster Leistungspfad" bezeichnet wird. Über den ersten Leistungspfad werden die Getriebeabtriebswellen gleichsinnig drehend vom Getriebeeingang angetrieben. Ferner ist ein "zweiter Leistungspfad" vorgesehen, über den die beiden Getriebeabtriebswellen "aktiv" gegensinnig angetrieben werden können. Der zweite Leistungspfad ist durch eine Antriebseinrichtung und die beiden Ausgleichsräder gebildet. Während des Betriebs können die beiden Leistungspfade einander überlagert werden. Dadurch können gezielt Zustände eingestellt werden, in denen sich die beiden Abtriebswellen gleichsinnig aber mit unterschiedlicher Drehzahl drehen.The Invention is based on a powertrain for vehicles, with a Differential gear, in a conventional manner, a transmission input, a Differential cage and a first and a second transmission output shaft that has over differential gears opposite are rotatably coupled together. The differential gears are rotatably mounted in the differential carrier. As with conventional vehicles The differential gear forms a "torque transmission path", which is referred to as "first power path" hereinafter. About the first Power path, the transmission output shafts rotating in the same direction driven by the transmission input. Furthermore, a "second power path" is provided over which the two transmission output shafts "active" can be driven in opposite directions. Of the second power path is through a drive device and the two differential gears educated. While of the operation the two power paths are superimposed on each other. This allows targeted conditions are set, in which the two output shafts in the same direction but rotate at different speeds.
Der Kern der Erfindung besteht nun darin, dass die "Antriebseinrichtung" des zweiten Leistungspfads durch einen Hydraulikreis mit einem Hydraulikmotor gebildet ist. Der Hydraulikmotor kann entweder unmittelbar mit beiden Abtriebswellen oder alternativ dazu mit einer Abtriebswelle und dem Differentialkorb gekoppelt sein. Über den zweiten Leistungspfad, d.h. über den Hydraulikmotor, lassen sich unterschiedliche Abtriebswellendrehzahlen einstellen, was in bestimmten Fahrsituationen gezielt zur Stabilisierung des Fahrzeugs eingesetzt werden kann.Of the The core of the invention consists in the fact that the "drive means" of the second power path through a Hydraulic rice is formed with a hydraulic motor. The hydraulic motor can be either directly with both output shafts or alternatively coupled to an output shaft and the differential carrier be. about the second power path, i. above the hydraulic motor, can be different output shaft speeds adjust, which in certain driving situations specifically for stabilization of the vehicle can be used.
Nach einer Weiterbildung der Erfindung weist der Hydraulikkreis eine Hydraulikpumpe auf, welche den Hydraulikmotor mit Hydraulikdruck versorgt. Vorzugsweise handelt es sich bei der Hydraulikpumpe um eine durch ein Servoglied betätigbare Verstellpumpe mit zwei Stromrichtungen.To a development of the invention, the hydraulic circuit a Hydraulic pump on which the hydraulic motor with hydraulic pressure provided. Preferably, the hydraulic pump is around an actuatable by a servo member variable with two current directions.
Vorzugsweise ist in dem Hydraulikkreis ein Drosselventil vorgesehen, dessen Strömungsquerschnitt durch eine Regelelektronik verstellbar ist. Das Drosselventil ist zur Regelung der Drehzahl des Hydraulikmotors, d.h. zur Regelung des "Sperrgrades" des Differentialgetriebes vorgesehen. Durch Variieren des Öffnungsquerschnitts des Drosselventils kann gezielt der am Hydraulikmotor anstehende Hydraulikdruck verändert werden. Das Drosselventil kann beispielsweise parallel zu einem Fluideingang und einem Fluidausgang des Hydraulikmotors angeordnet sein.Preferably in the hydraulic circuit, a throttle valve is provided whose flow cross-section is adjustable by a control electronics. The throttle valve is for controlling the speed of the hydraulic motor, i. for regulation the "locking degree" of the differential gear intended. By varying the opening cross section the throttle valve can targeted the pending on the hydraulic motor Hydraulic pressure changed become. The throttle valve may, for example, parallel to a Fluid inlet and a fluid outlet of the hydraulic motor arranged be.
Vorzugsweise weisen das Differentialgetriebe und der "Hydraulikkreis" einen gemeinsamen mechanischen Antrieb auf. Die Hydraulikpumpe kann beispielsweise über einen Zahnrad- oder Riemenantrieb von der Eingangswelle des Differentialgetriebes angetrieben werden. Von der Eingangswelle des Differentialgetriebes kann also bei Bedarf Leistung für den Hydraulikkreis abgezweigt werden, die dann für eine über den Hydraulikmotor "eingesteuerte" Drehmomentverschiebung zwischen den beiden Abtriebswellen genutzt und somit dem Antriebsstrang wieder zugeführt wird.Preferably have the differential gear and the "hydraulic circuit" a common mechanical drive on. The hydraulic pump can for example via a gear or belt drive be driven by the input shaft of the differential gear. From the input shaft of the differential gear so if needed Performance for the Are branched off hydraulic circuit, which then for a via the hydraulic motor "controlled" torque shift used between the two output shafts and thus the drive train fed again becomes.
Im
Folgenden wird die Erfindung im Zusammenhang mit
Das
Differentialgetriebe
Der
Hydraulikkreis
Die
Hydraulikpumpe
Wie
bereits erwähnt,
wird die Hydraulikpumpe
Über den
Hydraulikmotor
Das
Drosselventil
Bei
schnellem Beschleunigen kann es von Vorteil sein, die beiden Abtriebswellen
Wie
bereits mehrfach erwähnt,
kann zur Stabilisierung aktueller Fahrzustände der Hydraulikmotor
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003125220 DE10325220A1 (en) | 2003-06-04 | 2003-06-04 | Drive train for vehicle with hydraulically controllable differential gearbox has hydraulic circuit with hydraulic motor that forms drive device of second of two power paths |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003125220 DE10325220A1 (en) | 2003-06-04 | 2003-06-04 | Drive train for vehicle with hydraulically controllable differential gearbox has hydraulic circuit with hydraulic motor that forms drive device of second of two power paths |
Publications (1)
Publication Number | Publication Date |
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DE10325220A1 true DE10325220A1 (en) | 2005-01-05 |
Family
ID=33494820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003125220 Withdrawn DE10325220A1 (en) | 2003-06-04 | 2003-06-04 | Drive train for vehicle with hydraulically controllable differential gearbox has hydraulic circuit with hydraulic motor that forms drive device of second of two power paths |
Country Status (1)
Country | Link |
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DE (1) | DE10325220A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA019324B1 (en) * | 2011-10-25 | 2014-02-28 | Сергей Николаевич Абрамец | An automobile differential and a method of torque distribution in such automobile differential |
CN103697115A (en) * | 2013-11-28 | 2014-04-02 | 江苏泰隆减速机股份有限公司 | Dual-reduction ratio and dual-output speed reducer |
CN109027177A (en) * | 2018-09-04 | 2018-12-18 | 郭放 | A kind of differential lock |
-
2003
- 2003-06-04 DE DE2003125220 patent/DE10325220A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA019324B1 (en) * | 2011-10-25 | 2014-02-28 | Сергей Николаевич Абрамец | An automobile differential and a method of torque distribution in such automobile differential |
CN103697115A (en) * | 2013-11-28 | 2014-04-02 | 江苏泰隆减速机股份有限公司 | Dual-reduction ratio and dual-output speed reducer |
CN109027177A (en) * | 2018-09-04 | 2018-12-18 | 郭放 | A kind of differential lock |
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