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Dual-clutch group transmission, and method for actuating a dual-clutch group transmission

一种双离合器、变速器的技术，应用在车辆变速箱、运输和包装、带有齿的元件等方向，能够解决变速器主轴支承很难、范围选择档组不能进行负载转换、范围转换没有得到牵引力支持等问题

Active Publication Date: 2012-12-26
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because of this, the range selection gear group itself cannot perform load conversion
Therefore, in a transmission concept in which no intermediate gear changes are provided, said range shifts are also not supported by traction
Furthermore, the hollow shaft extending to the sun gear is relatively long, so that it is difficult to optimally support the very long transmission shaft leading through the hollow shaft from the starting clutch to the transmission output

Method used

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  • Dual-clutch group transmission, and method for actuating a dual-clutch group transmission
  • Dual-clutch group transmission, and method for actuating a dual-clutch group transmission
  • Dual-clutch group transmission, and method for actuating a dual-clutch group transmission

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Embodiment Construction

[0031] Thus, in figure 1 A schematic diagram of a first transmission configuration 1 of a dual clutch group transmission is shown in , as may be provided for example for a truck. The transmission arrangement 1 includes three transmission gear groups GV, HG, GP. Input side split gear group GV with three input constant transmission stages K1, K2, K3, main gear group HG with first gear 1G, second gear 2G and reverse gear RG, with lower gear range GPL The range selection gear group GP of the upper gear range GPS is arranged axially one after the other.

[0032] The splitter group GV and the main gear group HG are formed as a countershaft transmission with two common countershafts 2 , 3 with parallel axes. Gear constant transmission stages K1, K2, K3 and gears 2G, 1G, RG are formed with two fixed wheels each 4, 5; 7, 8; 10, 11; 13, 14; 16, 17; 19, 20 and Each of a gear set of idler wheels 6, 9, 12, 15, 18 and 21, said fixed wheels 4, 5; 7, 8; 10, 11; 13, 14; 16, 17; 19, 20 are a...

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Abstract

The invention relates to a dual-clutch group transmission, having a splitter group (GV), a main group (HG) and a range group (GP), in which dual-clutch group transmission the splitter group (GV) and the main group (HG) are configured as a transfer box transmission and the range group (GP) is configured as a planetary gear transmission with an internal gear (27), a sun gear (26) and a planetary gear set (28) which is guided by a planetary carrier (29), having an inner transmission input shaft (22) which is connected to a first clutch (C1), having an outer transmission input shaft (23) which is connected to a second clutch (C2), having a transmission main shaft (24) and having shifting apparatuses (S1, S2, S3, S4, S5, S6) for shifting gears or producing non-positive connections, and to a method for actuating said dual-clutch group transmission. In order to make power-shift gear changes during a shift of the range group (GP) possible, the inner transmission input shaft (22) can be connected directly to the transmission main shaft (24) via a shifting apparatus (S2), and in addition an additional hollow shaft (25) is arranged coaxially on the transmission main shaft (24), on which at least one movable gear (18) of a forward gear (1G) of the main group (HG) is mounted rotatably, which movable gear (18) can be connected fixedly via a shifting apparatus (S4) to the hollow shaft so as to rotate with it, wherein the hollow shaft (25) can be connected via a shifting apparatus (S3, S5) to the transmission main shaft (24) and via a shifting apparatus (S5) to the planetary carrier (29).

Description

technical field [0001] The invention relates to a dual clutch group transmission according to the preamble of claim 1 and a method for operating a dual clutch group transmission according to the preamble of claim 9 . Background technique [0002] Splitter transmissions and dual clutch transmissions are well known types of transmissions. Furthermore, split-group transmissions with dual clutches are also known. [0003] Group transmissions or multi-speed group transmissions have the advantage that group transmissions or multi-speed group transmissions provide a large number of gears by combining two or more transmission gear groups and are highly efficient in operation and With regard to the number of gears, it can be realized in a compact construction. However, group transmissions or multi-group transmissions, like all manual or automatic transmissions, are in principle subject to traction interruptions. In contrast, dual-clutch transmissions have the advantage that, throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/095F16H37/04
CPCF16H37/043F16H3/095F16H37/046F16H2003/0818F16H2200/0065F16H3/006Y10T74/19228Y10T74/19233
Inventor 斯特凡·伦纳
Owner ZF FRIEDRICHSHAFEN AG
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