This paper proposes a one-dimensional continuous model of the steel pushing V-belt, which describes the shifting dynamics of the CVT transmission during rapid speed ratio variations. The model investigates the influence of the clearance among the steel segments on the belt dynamics. The plates and pulleys strain motion is neglected, with respect to their rigid body motion, for the evaluation of the friction forces. The power transmission is assured only if an active arc exists where the plates are pressed against each other and where compressive forces arise among the steel segments. Conversely on the idle arc the steel plates are separated and no longitudinal compressive forces exist among the metal segments. The paper shows a significant difference in dynamical behavior between the drive and the driven pulley. Moreover, differences also exist between the pitch radius increasing phases and pitch radius decreasing phases.
Issue Section:
Technical Papers
1.
Van Der Laan, M., and Luh, J., 1999, “Model-Based Variator Control Applied to a Belt Type CVT,” Int. Congress on Continuously Variable Power Transmission CVT ’99, Eindhoven, The Netherlands, September 16–17, pp. 105–110.
2.
Takiyama, T., 1999, “Engine-CVT Consolidated Control for Variable A/F,” Int. Congress on Continuously Variable Power Transmission CVT ’99, Eindhoven, The Netherlands, September 16–17, pp. 36–41.
3.
Vroemen, B. G., and Veldpaus, F. E., 1999, “Hydraulic Circuit Design for CVT Control,” Int. Congress on Continuously Variable Power Transmission CVT ’99, Eindhoven, The Netherlands, September 16–17, pp. 111–116.
4.
Serrarens, A. F. A., and Veldpaus, F. E., 1999, “Powertrain Control of a Flywheel Assisted Driveline with CVT,” Int. Congress on Continuously Variable Power Transmission CVT ’99, Eindhoven, The Netherlands, September 16–17, pp. 225–230.
5.
Kelley, W. R., 1999, “A CVT for V8 Engine Applications in Passengers Cars and Light Trucks,” Int. Congress on Continuously Variable Power Transmission CVT ’99, Eindhoven, The Netherlands, September 16–17, pp. 117–124.
6.
Paul, M., 1999, “CVT’s Driving the Future of Transmission Technology,” Int. Congress on Continuously Variable Power Transmission CVT ’99, Eindhoven, The Netherlands, September 16–17, pp. 1–8.
7.
Mangialardi
, L.
, and Mantriota
, G.
, 1992
, “The Advantages of Using Continuously Variable Transmission in Wind Power Systems
,” Renewable Energy
, 2
(3
), pp. 201
–209
.8.
Mangialardi
, L.
, and Mantriota
, G.
, 1992
, “Continuously Variable Transmission with Torque-Sensing Regulators in Waterpumping Windmills
,” Renewable Energy
, 7
(2
), pp. 807
–823
.9.
Mangialardi
, L.
, and Mantriota
, G.
, 1994
, “Automatically regulated C.V.T. in Wind Power Systems
,” Renewable Energy
, 4
(3
), pp. 299
–310
.10.
Mangialardi
, L.
, and Mantriota
, G.
, 1999
, “Power Flows and Efficiency in Infinitely Variable Transmissions
,” Mech. Mach. Theory
, 34
, pp. 973
–994
.11.
Mangialardi
, L.
, and Mantriota
, G.
, 1996
, “Dynamic Behavior of Wind Power Systems equipped with Automatically Regulated Continuously Variable Transmission
,” Renewable Energy
, 7
(2
), pp. 185
–203
.12.
Arnijima
, S.
, Fujii
, T.
, Matsuoka
, H.
, and Ikeda
, E.
, 1992
, “Study on Axial Force and its Distribution of a New CVT Belt for Car
,” Int. J. Veh. Des.
, 13
(2
), pp. 168
–181
.13.
Gerbert, B. G., 1984, “Metal V-Belt Mechanics,” ASME Paper 84-DET-227 PTG Conference, Boston.
14.
Kim
, H.
, and Lee
, J.
, 1994
, “Analysis of Belt Behavior and Slip Characteristics for Metal V-Belt CVT
,” Mech. Mach. Theory
, 29
(6
), pp. 865
–874
.15.
Sun
, D. C.
, 1988
, “Performance Analysis of Variable Speed-Ratio Metal V-Belt Drive
,” ASME J. Mech., Transm., Autom. Des.
, 110
, pp. 472
–481
.16.
Ide
, T.
, Udagawa
, A.
, and Kataoka
, R.
, 1995
, “Simulation Approach to the Effect of the Ratio Changing Speed of a Metal V-Belt CVT on the Vehicle Response
,” Veh. Syst. Dyn.
, 24
, pp. 377
–388
.17.
Kanehara, S., Fujii, T., and Oono, S., 1996, “A Study on a Metal Pushing V-Belt Type CVT (Macroscopic Consideration for Coefficient of Friction between Belt and Pulley),” JSAE CVT ’96 Yokohama Proceedings, pp. 15–22.
18.
Kanehara, S., Fujii T., and Fujiimura, O., 1999, “Characterization of CVT Using a Metal V-Belt at Transitional States,” Int. Congress on Continuously Variable Power Transmission CVT ’99, Eindhoven, The Netherlands, September 16–17, pp. 58–64.
19.
Carbone
, G.
, Mangialardi
, L.
, and Mantriota
, G.
, 2001
, “Theoretical Model of Metal V-Belt Drives During Rapid Ratio Changing
,” ASME J. Mech. Des.
, 123
, pp. 111
–117
, March.20.
Ward, W. C., Jr., Copes, R. G., Sumiejski, J. L., and Fewkes, R., 1996, “Performance Features of Fluids for CVT Applications,” JSAE Paper 9636457.
21.
Nakazawa, K., Mitsui, H., and Kakegawa, K., 1998, “Performance of a CVT Fluid for High Torque Transmitting Belt-CVTs,” SAE paper 982675.
22.
Peiffer, R., and Kraneburg, P., 1999, “Functionality of New CVTs-the Fluid Question,” Proceedings of the Int. Congress on Continuously Variable Power Transmission CVT’99, pp. 172–177, Eindhoven, The Netherlands, SEPT. 16–17.
23.
Ichihashi, T., Deshimaru, J., and Yamaguchi, Y., 1999, “Performance of Lubricants for New Generation V-Belt CVT,” Proceedings of the Int. Congress on Continuously Variable Power Transmission CVT’99, pp. 178–183, Eindhoven, The Netherlands, SEPT. 16–17.
24.
Watts, R. F., and Richard, K. M., 1999, “Development of High Performance Lubricants for Nontraction CVT’s,” Proceedings of the Int. Congress on Continuously Variable Power Transmission CVT’99, pp. 184–189, Eindhoven, The Netherlands, SEPT. 16–17.
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