Shifting device for the mechanical coupling-free transmission of shift commands to the automatic transmission of a motor vehicle

US7322457B2 · kind B2 · utility

Assignee

• ZF Lemförder Metallwaren AG · DE

Inventors

• Andreas Giefer · Bohmte, DE
• Jorg Meyer · Aachen, DE

Key dates

• Filing date: Jun 21, 2005
• Grant date: Jan 29, 2008
• Expiry date: Oct 15, 2025

Classification

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

Abstract

A shifting device (1) for the mechanical coupling-free transmission of shift commands to an automatic transmission of a motor vehicle (shift-by-wire shifting), with at least one housing and/or one frame and one selector lever for the manual selection of shift commands for the vehicle transmission in at least one shift gate. The selector lever can be moved manually into at least four positions (P, R, N, D), pivotable about at least one shift axis. A transmission device(s) transmits the shift commands without mechanical coupling with the vehicle transmission (shift by wire). A mechanical coupling (16) is provided between the selector lever (2) and the transmission of the vehicle. This mechanical coupling (16) activates the parking brake exclusively and automatically when the selector lever (2) is engaged in the P position and is automatically uncoupled from the selector lever when the selector lever (2) is pivoted out beyond the adjacent position.