Method and device for operating especially an automatic or automated gearbox comprising a parking brake and a runaway locking mechanism

US7204785B2 · kind B2 · utility

Assignee

• LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

• Reinhard Berger · Bühl, DE
• Alexander Schweizer · Laufenburg (Baden), DE
• Dietmar Lang · Regenstauf, DE
• Klaus Kupper · Bühl, DE
• Burkhard Pollak · Bogen, DE
• Jurgen Benz · Besigheim, DE

Key dates

• Filing date: Nov 8, 2004
• Grant date: Apr 17, 2007
• Expiry date: May 18, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20085
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The methods and devices for actuating a parking brake in a gearbox which is actuated in an automated manner, whereby gear changes are carried out by means of at least one electrically driven actuator, gear positions can be selected by means of a selector device, and the parking brake can be activated by means of the selector device when the vehicle is stationary or moving slowly. The invention also relates to a vehicle provided with an additional gearbox. The ignition key can only be removed, when the gearbox is in the P state and the additional gearbox is not in the N state. The further method and device, whereby the additional gearbox can only be shifted in the N state when the gearbox is not in the P state. The methods and a device for carrying out the same, by automated manual gearboxes, especially parallel gearboxes, are controlled in such a way that the vehicle can be safely parked and can set off in a reliable and comfortable manner.