Continuously variable transmission

US6336878B1 · kind B1 · utility

Assignee

• LuK Getriebe-Systeme GmbH · DE

Inventors

• Matthias Ehrlich · Laufenburg (Baden), DE
• Bernhard Walter · Oberkirch, DE

Key dates

• Filing date: May 18, 1999
• Grant date: Jan 8, 2002
• Expiry date: May 18, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H61/662
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A continuously variable transmission for use in the power train of a motor vehicle has parallel input and output shafts, an adjustable pulley on each shaft, an endless torque transmitting chain or belt trained over the pulleys, and a torque sensor which transmits variable torque from the engine of the motor vehicle to the pulley on the input shaft. The torque sensor also serves to initiate and regulate the adjustments of the pulleys.