Title page for ETD etd-03312006-091805

Type of Document Master's Thesis
Author Willis, Christopher Ryan
Author's Email Address crw99@vt.edu
URN etd-03312006-091805
Title A Kinematic Analysis and Design of a Continuously Variable Transmission
Degree Master of Science
Department Mechanical Engineering
Advisory Committee
Advisor Name Title
Reinholtz, Charles F. Committee Chair
Ahmadian, Mehdi Committee Member
Goff, Richard M. Committee Member
  • CVT
  • continuously variable transmission
Date of Defense 2006-01-19
Availability mixed
This thesis describes a method for analyzing and designing a continuously

variable transmission (CVT). The analysis process is implemented in a software package

that can be used to tune a CVT for a given application. The analysis is accomplished

through the use of kinematic principles as well as equations developed from basic energy

balances. Although the theory developed can be applied to any CVT, this thesis focuses

on a case study using the Team Industries brand CVT applied to the Virginia Tech Mini

Baja Team. The work was motivated by the team’s need to have a reliable and

inexpensive method for CVT tuning. Previous approaches to CVT tuning were strictly

empirical and involved mechanical component replacement in a slow and expensive trialand-

error optimization loop. The tuning software is intended to be a first step in the

process of properly tuning a CVT for a specific application and not a complete

replacement for the empirical methods employed previously.

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