Patent · US Active

Continuously variable power-split transmission

US11047460B2 · kind B2 · utility

0Cited by

5References

16Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Benedikt Reick · Friedrichshafen, DE
Stefan Beck · Eriskirch, DE
Philipp Rechenbach · Markdorf, DE
Raphael Himmelsbach · Friedrichshafen, DE

Key dates

Filing date	Nov 16, 2018
Grant date	Jun 29, 2021
Priority date	—
Expiry date	Nov 16, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/62
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A continuously variable power-split transmission having a planetary gear mechanism arrangement. The planetary gear mechanism arrangement has three planetary gear sets, an input shaft and three output shafts. Furthermore, the transmission has a change-speed gearbox connected to the output shafts, a reverse gear mechanism and a variator. Each of the three planetary gear sets is assigned a respective output shaft. The input shaft is operatively connected in each of the three planetary gear sets via a respective gearwheel pairing to a respective output shaft. The transmission can be shifted by the change-speed gearbox and the reverse gear mechanism into at least eight driving ranges. The variator varies a transmission ratio of the transmission within the driving ranges in a continuously variable manner. The variator is continuously operatively connected to a single one of the three planetary gear sets.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.