This article discusses the experiments and modelling carried out on a V-belt continuously variable transmission (CVT) of the type that is used in mopeds. Our aim was to characterize the forces which determine how the system functions. A test bench was designed for them to be determined experimentally and a series of tests which cover the variable conditions of speed, torque, transmission ratio and tension of a CVT are carried out. Estimates of the principal existing models are compared and an empirical model for assessing these forces is discussed.
Issue Section:
Research Papers
1.
Amijima
S.
Fujii
T.
Matuoka
H.
Ikeda
E.
1992
, “Study on Axial Force and Its Distribution of a New CVT Belt for Cars
,” Int. J. of Vehicle Design
, Vol. 12
, No. 3
, pp. 324
–335
.2.
Bents, D. J., 1981, “Axial Force and Efficiency Tests of Fixed Center Variable Speed Belt Drive,” SAE Paper No. 810103 for Meeting Feb 23-27 1981,
3.
Box, G. E. P., Hunter, W. G., and Hunter, J. S., 1978, Statistics for Experimenters, Wiley, New York.
4.
Ferrando, F., Mercader, J., and Riba, C., 1993, “Design of a Centrifugal Regulator of Continuously Variable V-belt Transmission for Mopeds,” 5th Graz Two Weeler Symposium, Apr. 22-23, pp. 222–225.
5.
Gerbert, B. G., 1972, “Force and Slip Behavior in V-belt Drives,” Acta Polytechnica Scandinavica, Mech. Eng. Series, No. 67.
6.
Gerbert, B. G., 1980, “Some Notes on V-Belt Drives,” ASME 80-C2/DET-91 for Conference of Aug 18-21, 1980.
7.
Mal’tsev
V. F.
1974
, “Design of Automatic Continously-Variable Drives
,” Russian Engineering Journal
, Vol. 54
, No. 8
, pp. 19
–22
.8.
Miloiu
G.
1969
, “Die Druckkraft in stufenlosen Getrieben II. Riemen-, Ketten-und harmonishe Getriebe
,” Antriebstechnik
, Vol. 8
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, pp. 450
–459
.9.
Niemmann, G., and Winter, H., 1983, Maschinen-elemente, Vol. 3, Springer-Verlag, Berlin.
10.
Piock, W. F., Schopf, F. J., Killman, G. R., 1991, “Aspects of CVT-Development for Two-Wheelers,” 4rt Graz Two-Wheeler Symposium, Apr 8-9 1991, pp. 217–226.
11.
Worley
W. S.
1955
, “Designing Adjustable Speed V-belt Drives for Farm Implements
,” SAE Trans.
, Vol. 63
, pp. 321
–333
.
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