Technical Briefs

Modeling and Simulation of an Inertia-Type Infinitely Variable Transmission

[+] Author and Article Information
Giovanni Berselli1

Department of Mechanical Engineering (DIEM), University of Bologna, Viale Risorgimento 2, Bologna 40136, Italygiovanni.berselli@unibo.it



Corresponding author.

J. Mech. Des 132(3), 034504 (Mar 03, 2010) (5 pages) doi:10.1115/1.4000454 History: Received August 21, 2008; Revised October 10, 2009; Published March 03, 2010; Online March 03, 2010

A fully mechanical, infinitely variable transmission (IVT) based on the use of an oscillating inertia is described. The system includes a four-bar linkage mechanism, an epicyclic gear train, and a pair of one-way clutches. The IVT can be used in place of both gearbox and clutch in self-propelled vehicles. A mathematical model is presented. Numerical simulations compare the behavior of a car fitted with a manual gearbox and the same car fitted with the IVT.

Copyright © 2010 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 4

GBTC characteristic curves; engine speed (rpm) and torque on the secondary (N m) as function of the secondary shaft angular speed (rpm) (throttle angle as a parameter)

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Figure 3

GBTC characteristic curves for a constant torque engine

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Figure 2

GBTC substructure schematic

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Figure 5

Engine speed (rpm) and car’s speed (Km/h) for a car accelerating from rest on a level road

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Figure 1

Gear based torque converter



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