10-gear automatic transmission

US8465390B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Martin Brehmer · Tettnang, DE
• Gabor Diosi · Friedrichshafen, DE
• Josef Haupt · Tettnang, DE

Key dates

• Filing date: Dec 8, 2008
• Grant date: Jun 18, 2013
• Expiry date: Feb 1, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2046
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An automatic planetary transmission comprising a drive input shaft (AN), a drive output shaft (AB), first, second, third and fourth planetary gearsets (RS1,RS2,RS3, RS4) and six shifting elements (A, B, C, D, E, F). By the selectively engagement, in each case, three of the six shifting elements (A, B, C, D, E, F), ten forward gears and up to two reverse gears can be engaged without any range shifts.