Motor vehicle transmission

US10156284B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

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

Key dates

• Filing date: Jul 2, 2015
• Grant date: Dec 18, 2018
• Expiry date: Nov 12, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2097
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A vehicle transmission having a housing and a main transmission which includes input and output shafts and four planetary gearsets. Each of the gearsets has sun and ring gears, a carrier which supports a planetary gearwheel. The sun gear and the carrier of the second gearset are coupled permanently to the input and output shafts, respectively. The carrier of the second gearset is permanently coupled to the carrier of the fourth gearset. The ring gear of the second gearset is permanently coupled to the ring gear of the third gearset. The carrier of the fourth gearset can be coupled, via a first shifting element, to the sun gear of the second gearset. The carrier of the third gearset can be coupled, via a second shifting element, to the housing. The sun gear of the third gearset can be coupled, via third and fourth shifting elements, to the input shaft.