Multiple gear stage automatic transmission

US7104915B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Peter Tiesler · Meckenbeuren, DE
• Gerhard Gumpoltsberger · Friedrichshafen, DE

Key dates

• Filing date: Sep 3, 2004
• Grant date: Sep 12, 2006
• Expiry date: Feb 17, 2025

Classification

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

Abstract

A multiple stage transmission comprises three planetary gear sets (P1, P2, P3), at least six rotatable shafts (1, 2, 3, 4, 5, 6), brakes (03, 04) and clutches (13, 15, 46, 56), the drive shaft (1) being permanently connectable with the ring gear of the first planetary gear set (P1) and via one clutch (15) with the shaft (5) which is connected with the sun gear of the second planetary gear set (P2) and the sun gear of the third planetary gear set (P3) and via the clutch (56) connectable with the shaft (6), the driven shaft (2) being connected with the spider of the third planetary gear set (P3) and the ring gear of the second planetary gear set (P2), the shaft (3) being permanently connected with the ring gear of the third planetary gear set (P3), via one clutch (13) connectable with the drive shaft (1) and via one brake (03) attachable to the housing (G) and the sun gear of the first planetary gear set (P1) being non-rotatably connected via one shaft (0) with the housing (G).