Power-shift transmission for a commercial vehicle

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

Inactive Publication Date: 2009-04-22
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

The invention relates to a power-shift transmission for a commercial vehicle having a split group (3), a main group (4) and a range group (5). According to the invention, it is possible to connect a loose wheel (14) of an input constant (E2) fixedly in terms of rotation, optionally via the shifting elements (S1) and (S2), to two input shafts (6, 7) which can be coupled in each case via clutches (K1, K2) to a transmission input shaft (8). An idler shaft (12) can be driven via three input constants (E1, E2, E3), wherein a power flow takes place via the idler shaft (12) in all forward gears with the exception of a direct gear. With a simple construction, the design according to the invention results in the possibility of sequential gearshifts without interruptions in traction forces and multiple-gear upshifts and multiple-gear downshifts.

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] WO 0049484 discloses a transmission for a motor vehicle, in particular a passenger car, which can be shifted continuously without interruption of traction force, 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 input shaft via shif...

Claims

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Application Information

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Patent Type & Authority Applications(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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