Patent · US Active

Method for controlling a creeping process and drive train configured for such method

US8241180B2 · kind B2 · utility

1Cited by

1References

11Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Markus Klump · Bühl, DE
Martin Vornehm · Neu-Anspach, DE
Dietmar Lang · Regenstauf, DE

Key dates

Filing date	Jun 4, 2009
Grant date	Aug 14, 2012
Priority date	—
Expiry date	Dec 29, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2312/06
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A drive train of a motor vehicle with an internal combustion engine, a torque converter and a transmission, wherein a separation clutch is provided between the internal combustion engine and the torque converter. In order to be able to perform a creeping process at a certain creeping velocity, the separation clutch is operated slipping. This way, the gearing of the startup process can be configured long, even when using a so-called hard torque converter, without having to tolerate a creeping velocity, which is too high.

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