Multi-ratio transmission

US9347526B2 · 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 24, 2016
• Expiry date: May 1, 2033

Classification

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

Abstract

A multistage transmission with eight forward and one reverse gear, including input and output shafts, planetary gearsets, gear stages, shift elements and shafts. Input shaft couples the carrier of gearset (P1) and, via clutch (15), can couple shaft (5) that couples the sun gear of gearset (P3) and, via clutch (58), can couple shaft (8) connected to the ring gear of gearset (P2). The ring gear of gearset (P1) couples shaft (6) connected to the sun gear of gearset (P2). Shaft (3) couples the sun and ring gears of respective gearsets (P1, P3) and can couple, via brake (03), housing (G). The carrier of gearset (P2) couples shaft (4) which couples gear stage (S1) and can couple the output shaft. The carrier of gearset (P3) couples shaft (7) which can couple, via gear stage (S2) and clutch (27), the output shaft. Clutch (56) can couple shafts (5 and 6).