Transmission device comprising at least two output shafts

US8182386B2 · kind B2 · utility

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: May 22, 2012
• Expiry date: May 9, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/72
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A transmission device with at least two output shafts and at least two multi-shaft planetary gearsets that are actively connected with one another. A shaft of a planetary gearset can be actively connected with an output shaft. In addition, a shifting mechanism, located between the two output shafts, shifts between a first power path or a second power path. In one of the planetary gearsets, torque from an electric machine can be transmitted along either the first or the second power path. In the first power path, torque from the electric machine is transmitted to the two output shafts in equal parts and with the same sign. In the second power path, torque is transmitted to the two output shafts in equal parts but with opposite signs. The planetary gearset, in the area of which the torque from the electric machine can be transmitted, is a simple negative planetary gearset.