Multi-stage transmission for a motor vehicle

US9964159B2 · kind B2 · utility

Assignee

• Daimler AG · DE

Inventors

• Tobias Schilder · Ludwigsburg, DE
• Klaus Riedl · Bingen, DE
• Juergen Schweitzer · Bonlanden, DE
• Tobias Haerter · Stuttgart, DE
• Thomas Kull · Waiblingen, DE

Key dates

• Filing date: Jun 17, 2014
• Grant date: May 8, 2018
• Expiry date: Dec 18, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2094
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A multi-stage transmission for a motor vehicle is disclosed. The transmission has a transmission input shaft, at least four planetary gear stages which are disposed one behind the other along a main axis of rotation, and at least one combined gear shift unit which is configured as a brake and has a rotatable coupling element as well as a friction-locking unit and a form-locking unit connected in parallel with the friction-locking unit, which are in each case provided in order to connect the rotatable coupling element fixedly to the housing. One of the planetary gear stages is associated with the combined gear shift unit and includes a transmission element which is permanently connected non-rotatably to the rotatable coupling element. The planetary gear stage associated with the combined gear shift unit includes a further transmission element which is permanently connected non-rotatably to the transmission input shaft.