Patent · US Active

Method for controlling, and a control device of, an automated, non-synchromesh multispeed motor vehicle transmission

US7827876B2 · kind B2 · utility

8Cited by

8References

13Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Manfred Guggolz · Rutesheim, DE
Werner Hillenbrand · Neuffen, DE
David Ulmer · Schenefeld, DE
Markus Veit · Neckartenzlingen, DE

Key dates

Filing date	May 16, 2008
Grant date	Nov 9, 2010
Priority date	—
Expiry date	Mar 27, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19251
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In a method for controlling, and a control device of, an automated non-synchromesh multi-speed motor vehicle transmission, wherein, upon selection of a target gear, a form-fitting connection is to be established between shift elements of the target gear, wherein, however, with a certain rotational speed difference between the shift elements which causes chattering, no engagement takes place during actuation of the shift actuator for the target gear, when, upon monitoring, a certain chattering of the shift elements is detected, and, as a result, the engagement of the target gear is aborted in order to prevent the transmission from being damaged.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.