Gearing for a motor vehicle, and a drive train with same

US10195932B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Martin Brehmer · Tettnang, DE
• Matthias Horn · Tettnang, DE
• Peter Ziemer · Tettnang, DE
• Stefan Beck · Eriskirch, DE
• Johannes Kaltenbach · Friedrichshafen, DE
• Julian King · Rankweil, AT
• Jens Moraw · Friedrichshafen, DE
• Eckehard Münch · Jülich, DE
• Juri Pawlakowitsch · Kreßbronn, DE
• Stephan Scharr · Friedrichshafen, DE
• Viktor Warth · Friedrichshafen, DE
• Michael Wechs · Weißensberg, DE
• Uwe Griesmeier · Markdorf, DE
• Raffael Kuberczyk · Ravensburg, DE

Key dates

• Filing date: Nov 19, 2015
• Grant date: Feb 5, 2019
• Expiry date: Dec 20, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/919
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A transmission for a motor vehicle has an input shaft, output shaft, first and second minus planetary gear sets, and first electric machine with a rotationally fixed stator and a rotatable rotor connectable to the input shaft. The first planetary gear set is stepped and has planet gears of a larger and a smaller effective diameter. In the first planetary gear set, first sun gear engages the larger planet gears and is connected or connectable to the rotor; second sun gear engages the smaller planet gears and is connected to a sun gear of the second planetary gear set and connectable to the input shaft; a carrier is connected to a ring gear of the second planetary gear set; and a ring gear is rotationally fixable. In the second planetary gear set, the carrier is connectable to the input shaft and the ring gear is connected to the output shaft.