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Powershift transmission and method for operation thereof

US9309971B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9309971-B2
Application numberUS-201514642805-A
CountryUS
Kind codeB2
Filing dateMar 10, 2015
Priority dateMar 21, 2014
Publication dateApr 12, 2016
Grant dateApr 12, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A powershift transmission with a dual-clutch main transmission and a downstream planetary gearset. The main transmission includes two partial transmissions and corresponding input shafts and clutches and a common output shaft. The downstream transmission has an input shaft which couples, via a third shifting element, the common output shaft and is fixed to a first planetary gearset element. The downstream transmission has an output shaft that is fixed to a second planetary gearset element. A third planetary gearset element couples a housing by way of a fourth shifting element, to obtain a low driving range of the downstream transmission, or, the downstream transmission output shaft by way of a fifth shifting element to obtain a high driving range of the downstream transmission. The common output shaft can couple, via a sixth shifting element, the third planetary gearset element, which can couple, via the fourth shifting element, the transmission housing.

First claim

Opening claim text (preview).

The invention claimed is: 1. A powershift transmission ( 1 ) for a motor vehicle, the powershift transmission comprising: a main transmission ( 2 ), in a form of a dual-clutch transmission, and a downstream transmission ( 3 ), in a form of a planetary gearset, connected downstream from the main transmission ( 2 ); the main transmission ( 2 ) comprising first and second partial transmissions ( 6 , 7 ) and at least one main transmission output shaft ( 10 ) which is common to both…

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Frequently asked questions

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What does patent US9309971B2 cover?
A powershift transmission with a dual-clutch main transmission and a downstream planetary gearset. The main transmission includes two partial transmissions and corresponding input shafts and clutches and a common output shaft. The downstream transmission has an input shaft which couples, via a third shifting element, the common output shaft and is fixed to a first planetary gearset element. The…
Who is the assignee on this patent?
Zahnradfabrik Friedrichshafen
What technology area does this patent fall under?
Primary CPC classification F16H37/046. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Apr 12 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).