Transmission

US7093511B2 · kind B2 · utility

Assignee

• LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

• Viggo Lauritz Norum · Kongsberg, NO
• Lars Lein · Kongsberg, NO
• Geir Huseby · Vestfossen, NO
• Gunter Hirt · Steinach, DE
• Reinhard Berger · Bühl, DE
• Carsten Bünder · Frebershausen, DE
• Boris Serebrennikov · Laufenburg (Baden), DE
• Jorg Metzger · Bühlertal, DE
• Robert Fischer · Bogen, DE
• Burkhard Pollak · Bogen, DE
• Gerd Ahnert · Achern, DE

Key dates

• Filing date: Aug 23, 2003
• Grant date: Aug 22, 2006
• Expiry date: Aug 23, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19279
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A power transmission for a motor vehicle. The transmission includes a plurality of transmission ratio steps defined by pairs of gear carried on parallel shafts, and final output mechanisms for engaging desired transmission ratio steps. The final output mechanisms are operable for controlling the engagement of respective transmission ratio steps to minimize tractive force interruption by allowing rapid gear changes to be effected to reduce the times between shifts of gears. By sensing accelerator pedal position and vehicle speed a new transmission ratio step to be subsequently engaged can be pre-selected while an engaged gear remains engaged.