Multiple ratio transmission with swap-shift controls

US5642283A · kind A · utility

Assignee

• Ford Motor Company · US

Inventors

• Winfried Schulz · Berlin, DE
• Johann Kirchhoffer
• Stefan Huepkes · Viersen, DE

Key dates

• Filing date: Oct 27, 1995
• Grant date: Jun 24, 1997
• Expiry date: Oct 27, 2015

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2306/52
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A multiple ratio transmission having a main gear unit with at least three forward driving ratios and a single reverse drive ratio and a simple planetary gear unit in series with the main gear unit, the simple planetary gear unit being downshifted and the main gear unit being upshifted on an upshift from a first intermediate ratio to a higher intermediate ratio, the simple planetary gear unit being upshifted and the main gear unit being downshifted on a downshift from the higher intermediate ratio to the first intermediate ratio.