Patent · US Active

Transmission device comprising at least two output shafts and at least two multi-shaft planetary gear sets

US8308600B2 · kind B2 · utility

2Cited by

8References

9Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Thomas Rosemeier · Meckenbeuren, DE
Bernd-Robert Hohn · Kösching, DE
Christoph Pelchen · Tettnang, DE

Key dates

Filing date	Dec 8, 2008
Grant date	Nov 13, 2012
Priority date	—
Expiry date	Jan 3, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/62
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A transmission device with at least two output shafts and at least two multi-shaft planetary gearsets being actively connected. A shaft of each gearset can be actively connected with an output shaft. A shifting mechanism is provided, between the two output shafts, for shifting between a first power path and a second power path. In the area of a further shaft of one of the planetary gearsets, torque from an electric machine flows along the first or the second power path. When the first power path is engaged, the torque from the electric machine flows in equal parts and with the same sign to the two output shafts, and when the second power path is engaged, the torque flows to the two output shafts in equal parts but with opposite signs. A motor output shaft of the electric machine is arranged perpendicularly to one of the two output shafts.

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