Method and device for controlling gear ratio change in a transmission contained in the drive train of a motor vehicle with gears that can be shifted under power

US7056264B2 · kind B2 · utility

Assignee

• LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

• Klaus Kupper · Bühl, DE
• Georg Schneider · Coburg, DE

Key dates

• Filing date: Feb 10, 2004
• Grant date: Jun 6, 2006
• Expiry date: Apr 24, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19288
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In a parallel manual transmission, an upshifting under power is executed based upon preset operating conditions, for example with a fully depressed accelerator pedal, without an electronically controlled, load-reducing ignition retard. When shifting to a higher gear, the engine output is used for increasing the speed of the engine and for the propulsion of the vehicle, based upon the operating condition of the drive train.