PatentsDB

Method for operating a drive train

US8979707B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8979707-B2
Application numberUS-201013497919-A
CountryUS
Kind codeB2
Filing dateSep 7, 2010
Priority dateOct 1, 2009
Publication dateMar 17, 2015
Grant dateMar 17, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A method of operating a drive-train which comprises an automated shift transmission having an unsynchronized main transmission and a synchronized downstream group that is drivingly coupled downstream from the main transmission. An input shaft of the automated transmission is connected, via a clutch, to a drive aggregate and an output shaft of the automated transmission is connected to a drive axle. When the vehicle is driven and the main transmission is in a neutral position, if the drive aggregate malfunctions, to engage a gear, the downstream group is adjusted to stop transmitting power and thereby coast to a stop. A shifting impulse is applied to a shifting cylinder of the main transmission so that shifting elements, of the main transmission, ratchet over one another and eventually mesh thus engaging the main transmission, and once the main transmission is engaged, the downstream group is brought to a power-flow-transmitting position.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method of operating a drive-train of a motor vehicle in which the drive-train comprises an automated shift transmission, between a drive aggregate and an axle drive, with at least one unsynchronized main transmission and a synchronized downstream group, drivingly coupled downstream from the main transmission, and an input shaft of the automated shift transmission being connected with the drive aggregate by way of a controllable separator clutch and an…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

View patent family 43242612

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Get alerts for this patentView on Google Patents

Request deeper analysis

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8979707B2 cover?
A method of operating a drive-train which comprises an automated shift transmission having an unsynchronized main transmission and a synchronized downstream group that is drivingly coupled downstream from the main transmission. An input shaft of the automated transmission is connected, via a clutch, to a drive aggregate and an output shaft of the automated transmission is connected to a drive a…
Who is the assignee on this patent?
Kemler Johannes, Staudinger Joachim, Wurthner Maik, and 2 more
What technology area does this patent fall under?
Primary CPC classification F16H61/12. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 17 2015 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).