Drive unit for a hybrid motor vehicle

US7410444B2 · kind B2 · utility

Assignee

• MTU FRIEDRICHSHAFEN GMBH · DE

Inventors

• Michael Groddeck · Meckenbeuren, DE
• Joachim Huster · Starnberg, DE

Key dates

• Filing date: Feb 24, 2006
• Grant date: Aug 12, 2008
• Expiry date: Jan 13, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/7072
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In a drive unit for a hybrid motor vehicle including an internal combustion engine and a dynamoelectric machine to be connected to a transmission of the motor vehicle, wherein the drive unit comprises an input shaft connected to the internal combustion engine, an output shaft connected to the dynamoelectric machine for rotation therewith and a clutch for connecting the input shaft to the output shaft, the clutch includes centrifugal actuators for causing engagement of the clutch upon rotation at a speed in excess of a threshold value, springs counteracting the centrifugal actuators for causing the release of the clutch at a speed below the threshold value, and an electromagnetic actuators for causing engagement of the clutch at a speed below the threshold value to permit startup operation of the internal combustion engine by the dynamoelectric machine.