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

US10632835B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Peter Ziemer · Tettnang, DE
• Stefan Beck · Eriskirch, DE
• Martin Brehmer · Tettnang, DE
• Matthias Horn · Tettnang, DE
• Johannes Kaltenbach · Friedrichshafen, DE
• Julian King · Rankweil, AT
• Bernd Knöpke · Salem, DE
• Jens Moraw · Friedrichshafen, DE
• Eckehard Münch · Jülich, DE
• Gerhard Niederbrucker · Friedrichshafen, 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: Apr 8, 2016
• Grant date: Apr 28, 2020
• Expiry date: Apr 15, 2037

Classification

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

Abstract

A transmission (G) for a motor vehicle comprising an upstream gear set (VRS), a main gear set (HRS) with a total of four shafts (W1, W2, W3, W4) referred to in order of rotational speeds as first, second, third and fourth shafts, an electric machine (EM), and at least five shift elements (A, B, C, E, F), the selective pairwise closure of which realizes at least eight selectable forward gear ratios (G1-G8) between a drive shaft (GW1) and an output shaft (GW2) of the transmission (G). The upstream gear set (VRS) provides a rotational speed at a fifth shaft (W5) increased relative to the rotational speed of the drive shaft (GW1), in a fixed transmission ratio with respect to the drive shaft (GW1). The main gear set (HRS) is a stepped planetary gear set (PS).