Method of and apparatus for influencing the shifting of transmissions in the power trains of motor vehicles

US6322477A · kind A · utility

Assignee

• LuK Getriebe GmbH · DE

Inventors

• Jurgen Eich · Bühl, DE
• Michael Salecker · Bühl, DE
• Thomas Jager · Meckenbeuren, DE

Key dates

• Filing date: Oct 7, 1999
• Grant date: Nov 27, 2001
• Expiry date: Oct 7, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S477/903
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for influencing a shift process connected with a change in transmission ratio when driving a motor vehicle that has a set of driven wheels subject to longitudinal and transverse forces, the method including detecting whether or not the vehicle is traveling around a curve and, if doing so when the shift process is in progress, influencing the shift process so as to decrease the longitudinal forces that act on the driven wheels as a result of the shift process. Also disclosed is an apparatus for performing the disclosed method including a detector for detecting whether or not the vehicle is traveling around a curve and a transmission ratio shifter responsive to the detector that, if the vehicle is traveling around a curve when the shift process is in progress, performs the shift process so as to decrease the longitudinal forces that act on the driven wheels as a result of the shift process.