Multi-ratio transmission

US9039561B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Stefan Beck · Eriskirch, DE
• Timo Wehlen · Friedrichshafen, DE

Key dates

• Filing date: Jan 10, 2013
• Grant date: May 26, 2015
• Expiry date: Jan 10, 2033

Classification

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

Abstract

A multi-stage transmission with eight forward and one reverse gear, including drive and output shafts, planetary gearsets, gear stage, shift elements and shafts. The drive shaft couples the carrier of gearset (P1) and can couple shaft (5) via clutch (15). Shaft (5) couples the ring and sun gears of respective gearsets (P2, P3). The ring gear of gearset (P1) couples shaft (6), which couples the sun gear of gearset (P2). Shaft (3) couples the sun gear of gearset (P1) and the ring gear of gearset (P3) and can couple the housing via brake (03). The carrier of gearset (P2) couples shaft (4), which can couple the output shaft via gear stage (S1) and clutch (24). The carrier of gearset (P3) couples shaft (7), which can couple the output shaft via gear stage (S2) and clutch (27), and clutch (46, 56, 45) engages to block gearset (P2).