Power-shift transmission for a commercial vehicle

A technology for power shifting, commercial vehicles, applied in the direction of vehicle gearbox, vehicle components, transmission elements, etc., can solve the problem of not discussing multi-level upshift transmission driving torque, etc., to achieve extended maintenance intervals, simple structure, and space saving Effect

Inactive Publication Date: 2014-01-08
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this document there is no discussion of multi-stage upshifts and multi-stage downshifts and the transmission of drive torque from one clutch to another for the same clutch

Method used

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  • Power-shift transmission for a commercial vehicle
  • Power-shift transmission for a commercial vehicle
  • Power-shift transmission for a commercial vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] figure 1 A power shift transmission 1 is shown having a dual clutch 2 with two clutches K1 and K2 , a splitter assembly 3 , a main assembly 4 and a rear assembly 5 .

[0039] The splitter assembly 3 comprises two input shafts 6, 7 which can be selectively enabled by means of clutches K1, K2 or by means of a crossover controller ( ) is drivingly connected with the transmission input shaft 8. In the splitter assembly 3 , the countershaft 12 can be driven in different transmission ratios via input constants E1 , E2 , E3 associated with the respective gear plane. The input constants E1 , E2 , E3 include drive input side gears 13 - 15 that are meshed with the drive output side gears 6 - 18 of the input constants E1 , E2 , E3 . The gears 13 - 15 are designed as freewheels, wherein the gear 13 is mounted rotatably relative to the input shaft 7 and the gears 14 , 15 are mounted rotatably relative to the input shaft 6 . The input shaft 7 is designed as a hollow shaft and sur...

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PUM

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Abstract

In a load shift transmission for a utility vehicle having a transmission input shaft, a split group, a main group and a range group, a dual clutch with two input shafts, a main shaft and a countershaft with input constants including loose gear wheels, one loose gear wheel of an input constant is selectively rotationally fixedly connectable by means of shift elements to either one of the input shafts which can in each case be coupled by means of clutches (K1,K2) to the main transmission input shaft, the countershaft can be driven by one of three input constants with power being transmitted via the countershaft in all forward gears with the exception of a direct gear. The arrangement provides, with a simple design, for the possibility to carry out sequential shifts and multiple up-shifts and multiple down-shifts without an interruption in traction force.

Description

technical field [0001] The invention relates to a power-shiftable / load-shiftable transmission / transmission for a commercial vehicle comprising a splitter assembly, a main assembly and a rear / grading assembly. Background technique [0002] WO0049484 discloses a transmission for a motor vehicle, in particular a passenger car, which can be shifted continuously without interruption of traction force, the transmission comprising 6 forward gears. In order to achieve high variability in the shifting process without interruption of tractive force even in multi-stage upshifts or downshifts, different shifting elements and different input shafts assigned to a double clutch / double clutch are used for different The power flow achieves the same transmission gear in the transmission. For this purpose, the gear wheels of the input constant / proportional input assembly (Eingangskonstanten) mounted on the input shaft as freewheel / cruise wheel can be selectively coupled to the respective inpu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/00F16H3/091F16H37/04
CPCF16H2003/123F16H37/046F16H3/095F16H3/0915F16H37/042F16H2200/0065F16H3/006Y10T74/19167Y10T74/19233
Inventor G·卡斯滕
Owner DAIMLER AG
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