Patent · US Active

Auxiliary transmission for a vehicle

US9759299B2 · kind B2 · utility

3Cited by

5References

17Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Stefan Beck · Eriskirch, DE
Michael Wechs · Weißensberg, DE
Viktor Warth · Friedrichshafen, DE

Key dates

Filing date	Jul 7, 2015
Grant date	Sep 12, 2017
Priority date	—
Expiry date	Dec 17, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2200/2097
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A motor vehicle group transmission with at least one housing, a main transmission and a range transmission connected downstream from the main transmission. The main transmission comprises at least four planetary gearsets, each of which comprises a sun gear, a carrier, a planetary gearwheel mounted on the carrier and a ring gear, and at least five shifting elements. The range transmission includes at least two planetary gearsets, each of which has a sun gear, a carrier, a planetary gearwheel mounted on the carrier and a ring gear, and at least three shifting elements. The main transmission and the range transmission, together in combination, provide at least thirteen forward gears and at least eight reverse gears.

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