DE3721276C1 - Power-shift transmission for motor vehicles - Google Patents

Power-shift transmission for motor vehicles

Info

Publication number
DE3721276C1
DE3721276C1 DE19873721276 DE3721276A DE3721276C1 DE 3721276 C1 DE3721276 C1 DE 3721276C1 DE 19873721276 DE19873721276 DE 19873721276 DE 3721276 A DE3721276 A DE 3721276A DE 3721276 C1 DE3721276 C1 DE 3721276C1
Authority
DE
Germany
Prior art keywords
transmission
power
gears
motor vehicles
planetary gear
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.)
Expired
Application number
DE19873721276
Other languages
German (de)
Inventor
Klaus Frotscher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
W U K FROTSCHER oHG
Original Assignee
W U K FROTSCHER oHG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by W U K FROTSCHER oHG filed Critical W U K FROTSCHER oHG
Priority to DE19873721276 priority Critical patent/DE3721276C1/en
Application granted granted Critical
Publication of DE3721276C1 publication Critical patent/DE3721276C1/en
Expired legal-status Critical Current

Links

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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04—Combinations of toothed gearings only

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

Power-shift transmissions (automatic transmissions) hitherto constructed are highly complex to operate and are in practice limited in the number of steps available. With the new transmission, a large number of steps are possible in a simple design. By virtue of the special arrangement of two planetary gear sets in series, one half of the transmission can always be frictionally preengaged and changed as required without interrupting the flow of power. <IMAGE>

Description

Die Erfindung betrifft ein Lastschaltgetriebe für Kraftfahrzeuge mit einer Zentralwelle zum Antrieb einer ersten Gruppe von Getrie­ begängen und zumindest einer Hohlwelle zum Antrieb einer weiteren Gruppe von Getriebegängen. Ein solches Getriebe ist durch z. B. die DE-OS 15 30 994 bekannt. Dieses bekannte Getriebe besitzt zur Ver­ bindung von Motor und Getriebe eine Doppelkupplung. Die Versorgung der einzelnen Kupplungen mit dem zur Betätigung notwendigen Hy­ drauliköl ist aufwendig, da die Versorgungskanäle zum Teil in sich drehenden Getriebeteilen angeordnet sind.The invention relates to a powershift transmission for motor vehicles with a central shaft for driving a first group of transmissions commit and at least one hollow shaft to drive another Group of transmission gears. Such a transmission is by z. B. the DE-OS 15 30 994 known. This known transmission has for ver engine and gearbox a double clutch. The supply of the individual clutches with the Hy required for actuation Draulic oil is expensive because the supply channels are in part rotating gear parts are arranged.

Ein weiteres Getriebe wird durch die DE 37 13 106 A1 (ältere Anmeldung) beschrieben.Another transmission is described by DE 37 13 106 A1 (earlier application).

Dieses ist ein Lastschaltgetriebe für Kraftfahrzeuge mit einer Ge­ triebeeingangswelle, die einen durchgehenden Planetenradträger und zwei Planetenradsätze aufweist.This is a power shift transmission for motor vehicles with a Ge drive input shaft, which has a continuous planet carrier and has two planetary gear sets.

Die Hohlräder der Planetenradsätze sind drehfest mit den Antriebs­ wellen der beiden Gruppen von Getriebegängen gekoppelt, während die Sonnenräder wechselseitig festbremsbar sind.The ring gears of the planetary gear sets are non-rotatable with the drive shafts of the two groups of gearboxes coupled while the sun gears can be braked alternately.

Der Erfindung liegt daher die Aufgabe zugrunde, die zwischen Motor und Getriebe notwendigen Kupplungen zu vereinfachen.The invention is therefore based on the object between the engine and gearbox to simplify necessary clutches.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Getrie­ beeingangswelle einen durchgehenden Planetenträger und zumindest zwei Planetenradsätze aufweist, die zugehörigen Sonnenräder mit den Wellen drehfest gekoppelt und die Hohlräder wechselseitig festbremsbar sind.This object is achieved in that the gear input shaft a continuous planet carrier and at least has two planetary gear sets, the associated sun gears with the shafts rotatably coupled and the ring gears mutually are braked.

Ein Ausführungsbeispiel ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. An embodiment is shown in the drawing and will described in more detail below.  

Die Getriebeeingangswelle 1 weist einen durchgehenden Planeten­ radträger 2 für zwei oder mehr hintereinander liegende Planeten­ radsätze I, II auf. Das Sonnenrad 3 des ersten Planetenradsat­ zes I ist mit der Zentralwelle 3 a zum Antrieb einer ersten Gruppe von Getriebegängen A verbunden. Das Sonnenrad 4 des nachfolgenden Planetenradsatzes II ist mit einer Hohlwelle 4 a, die die Zentralwelle 3 a teilweise umschließt, zum Antrieb einer weiteren Gruppe von Getriebegängen B verbunden.The transmission input shaft 1 has a continuous planet gear carrier 2 for two or more successive planetary gear sets I, II. The sun gear 3 of the first planetary gear set I is connected to the central shaft 3 a for driving a first group of transmission gears A. The sun gear 4 of the following planetary gear set II is connected to a hollow shaft 4 a , which partially surrounds the central shaft 3 a , for driving a further group of transmission gears B.

Die Hohlräder 5, 6 der einzelnen Planetenradsätze I, II sind mit Bremsbändern 7 versehen, wodurch die Hohlräder wechselseitig festbremsbar sind.The ring gears 5, 6 of the individual planetary gear sets I, II are provided with brake bands 7 , whereby the ring gears can be braked alternately.

Claims (1)

Lastschaltgetriebe für Kraftfahrzeuge mit einer Zentralwelle zum Antrieb einer ersten Gruppe von Getriebegängen und zumindest einer Hohlwelle zum Antrieb einer weiteren Gruppe von Getriebegängen, dadurch gekennzeichnet, daß die Getriebeeingangswelle einen durchgehenden Planetenrad­ träger und zumindest zwei Planetenradsätze aufweist, die zugehörigen Sonnenräder mit den Wellen drehfest gekoppelt und die Hohlräder wechselseitig festbremsbar sind.Power shift transmission for motor vehicles with a central shaft for driving a first group of transmission gears and at least one hollow shaft for driving a further group of transmission gears, characterized in that the transmission input shaft has a continuous planet gear carrier and at least two planetary gear sets, the associated sun gears are rotatably coupled to the shafts and the ring gears can be braked alternately.
DE19873721276 1987-06-27 1987-06-27 Power-shift transmission for motor vehicles Expired DE3721276C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873721276 DE3721276C1 (en) 1987-06-27 1987-06-27 Power-shift transmission for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873721276 DE3721276C1 (en) 1987-06-27 1987-06-27 Power-shift transmission for motor vehicles

Publications (1)

Publication Number Publication Date
DE3721276C1 true DE3721276C1 (en) 1988-12-22

Family

ID=6330422

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873721276 Expired DE3721276C1 (en) 1987-06-27 1987-06-27 Power-shift transmission for motor vehicles

Country Status (1)

Country Link
DE (1) DE3721276C1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1530994A1 (en) * 1967-03-03 1971-01-28 Bosch Gmbh Robert Stationary gear
US4461188A (en) * 1981-12-23 1984-07-24 Ford Motor Company Dual clutch multiple countershaft transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1530994A1 (en) * 1967-03-03 1971-01-28 Bosch Gmbh Robert Stationary gear
US4461188A (en) * 1981-12-23 1984-07-24 Ford Motor Company Dual clutch multiple countershaft transmission

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
In Betracht gezogene ältere Anmeldung: DE 37 13 106 A1 *

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee