Power-split continuously variable transmission device

US10641373B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Stefan Beck · Eriskirch, DE
• Viktor Warth · Friedrichshafen, DE
• Michael Wechs · Weißensberg, DE
• Bernhard Sich · Friedrichshafen, DE
• Fabio Frank · Ravensburg, DE
• Jens Moraw · Friedrichshafen, DE
• Gerhard Niederbrucker · Friedrichshafen, DE
• Lara Ruth Turner · Markdorf, DE

Key dates

• Filing date: Oct 25, 2018
• Grant date: May 5, 2020
• Expiry date: Dec 6, 2038

Classification

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

Abstract

A variator unit is fixed to a rotationally fixed component and has a secondary side rotationally fixed to an input shaft and a primary side rotationally fixed to a first element of a first planetary gear set. The input shaft is rotationally fixable via a second shift element to a second element of a second planetary gear set, which is fixable to the rotationally fixed component via a first shift element, and is rotationally fixed to a first element of a third planetary gear set. A second element of the first planetary gear set is fixed to the rotationally fixed component. A first element of the second planetary gear set is rotationally fixed to a third element of the third planetary gear set. A third element of the first planetary gear set is rotationally fixed to a third element of the second planetary gear set.