| DEVELOPMENT OF 3D DYNAMIC AND 1D NUMERICAL MODEL FOR COMPUTING PULLEY RATIO OF CHAIN CVT TRANSMISSION
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| Joo Yeon Kim , Dae Sung Bae |
| Department of Mechanical Design Engineering, Graduate School, Hanyang University |
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| ABSTRACT |
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The pulley ratio of continuously variable transmission (CVT) is one of the most important factors in the
quality evaluation for shift smoothness and response. The numerical model with pulley ratio map has been widely used for
shift control. It has been obtained with the experimental method but its cost is very expensive. This paper proposes a way to
make the pulley ratio map of the chain CVT via virtual simulation to decrease the cost. The 3D dynamic analysis model of it
has been developed by using the general purpose dynamic analysis software, DAFUL. The dynamic analysis is carried out to
get the pulley ratio map. It has been obtained by varying the ratio of torque, ratio of clamping forces, and changing rate of
clamping force. The interpolation function of pulley ratio map is developed using MATLAB Simulink. This method has been
verified as compared simulation with experiment result. |
| Key Words:
CVT, Chain, Pulley ratio, Dynamic, Simulation, DAFUL, MATLAB, Simulink
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Corresponding Author.
Dae Sung Bae , Email. 
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