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Shifting device

A technology of automobile gearbox and shifting device, which is applied in the direction of transmission, transmission control, gear transmission, etc.

Inactive Publication Date: 2008-09-10
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this shifting device is that it is limited to only four forward gears, if it should be completely manual without external force assist shifting

Method used

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Examples

Experimental program
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Embodiment Construction

[0055] FIG. 1 shows a schematic diagram of an engine of a motor vehicle, to which a clutch and a gearbox 1 are axially connected, as known from the prior art. The gearbox 1 is actuated via a selector knob 4 , wherein in this embodiment the selector lever 4 is moved in a selector gate 5 and a selector pocket 7 . In this embodiment, the selector lever 4 is shown as an H-shaped shifting pattern, but multiple H-shaped shifting patterns can also be provided. This depends on the number of gear stages of the associated vehicle gearbox 1 .

[0056] FIG. 2a shows a symbolic representation of the construction of a prior art dual clutch gearbox and its installation in the transmission line of a power shift system. In order to enable power shifting without interruption of traction, the dual clutch gearbox is equipped with a dual clutch 16 . To this end, each clutch of the multiple clutches 16 is associated with an input shaft of the multiple clutch gearbox. Wherein the even (2, 4, 6) a...

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PUM

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Abstract

A manually controlled shifting conversion apparatus for a multistage transmission having multiple shifting packets wherein gears for successive, non-adjacent gear ratios are located in each shifting packet and gears for successive, adjacent gear ratios are located in different shifting packets. The gears located in each shifting packet are respectively engaged by opposing axial displacements of the shifting packet controlled by a gear shift lever ( 4 ). The gear shift level ( 4 ) has a shifting pattern wherein the shifting positions of successive gear ratios are located in opposing positions in the shifting pattern.

Description

technical field [0001] The invention relates to a shifting device, in particular for a multi-stage gearbox, and to a motor vehicle gearbox. Background technique [0002] Known a kind of automobile gearbox (for example DE4137143A1), has introduced a kind of multistage synchronous front gearbox wherein, is allocated two gears respectively for one of a plurality of speed change assemblies in this gearbox. Here, the two gears (1 and 3 or 2 and 4) assigned to a transmission assembly are not gears that are connected to each other. This results in the advantage that a shifting system is obtained with which a crossover operation is possible, thereby reducing the shifting assistance time. The disadvantage, however, is that such a gearbox cannot be shifted with a conventional manual switch, since the manual switch in the conventional H-shift diagram can only shift, for example, successive gears. [0003] In addition, a 12-speed gearbox for trucks is known (for example EP1034384B1), ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/04F16H3/08F16H63/12F16H3/089F16H61/34F16H63/30
CPCF16H63/3069F16H2063/025F16H63/3013B60Y2400/428F16H3/006Y10T74/20018Y10T74/20183Y10T74/20177Y10T74/19228
Inventor 米夏埃尔·埃本霍赫马丁·弗吕基格尔
Owner ZF FRIEDRICHSHAFEN AG