Shift device for an automatic transmission of a vehicle

US7001308B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Markus Henneken · Kreßbronn, DE
• Friedemann Jauch · Meckenbeuren, DE
• Franz Schuler · Kreßbronn, DE
• Thomas Mauz · Kreßbronn, DE
• Michael Kiefer · Rochester, US

Key dates

• Filing date: May 18, 2002
• Grant date: Feb 21, 2006
• Expiry date: Jun 14, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20159
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A shift device for an automatic transmission of a vehicle, particularly of a motor vehicle, is proposed in which the request to change the current ratio of the automatic transmission upon reaching preset operating states of the vehicle can be automatically generated or by manual input in a manual shifting mode. A pulse counter is here provided by way of successive pulses and manual input can be functionally interlinked wherein a shift signal can be generated depending on the linkage.