Transmission for a motor vehicle, drive train for a hybrid vehicle, and method for operating such a drive train

US10406908B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Martin Brehmer · Tettnang, DE
• Stefan Beck · Eriskirch, DE
• Matthias Horn · Tettnang, 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
• Peter Ziemer · Tettnang, DE
• Uwe Griesmeier · Markdorf, DE
• Raffael Kuberczyk · Ravensburg, DE

Key dates

• Filing date: Apr 18, 2016
• Grant date: Sep 10, 2019
• Expiry date: May 6, 2036

Classification

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

Abstract

A gearbox (G) for a motor vehicle having a drive shaft (GW1); an output shaft (GW2); an electric machine (EM); and first and second minus planetary gear sets (P1,P2), the first planetary gear set (P1) being a stepped planetary gear set. A ring gear (E31) of the first planetary gear set (P1) is rotationally fixedly immobilizable via a fourth shift element (06). The first sun gear (E111) of the first planetary gear set (P1) is rotationally fixedly immobilizable via a fifth shift element (03). The output shaft (GW2) is connected to the ring gear (E32) of the second planetary gear set (P2). A rotor (R) of the electric machine (EM) is continuously connected to the drive shaft (GW1). The first sun gear (E111) of the first planetary gear set (P1) is not continuously rotationally fixedly connected to or operatively connectable by the shift elements with any further electric machine.