Drive train compromising an internal combustion engine and two electric drive units

US7527573B2 · kind B2 · utility

Assignee

• Daimler AG · DE

Inventors

• Juergen Lang · Backnang, DE
• Klaus Riedl · Bingen, DE

Key dates

• Filing date: Oct 29, 2003
• Grant date: May 5, 2009
• Expiry date: Nov 9, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/62
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a drive train that includes an internal combustion engine and two electric drive units, drive torque of the internal combustion engine is superimposed on drive torque of an electric drive unit by means of a planet set to which the drive torque of the internal combustion engine is fed via a sun gear. The torque of the electric drive unit is transferred for different shift positions of a clutch by driving different ring gears of the planet set. The electric drive unit can be coupled directly to the input shaft via a clutch or can be coupled to a sun gear of the pick off gear unit via a clutch.