Most of the technical literature on CVT consider steady-state conditions. Very few analyze the behavior of CVT under transient conditions (Kanehara et al., 1999; Ide et al., 1995; Carbone et al., 2002) and none of them include the effects of pulley deformation. This paper is an attempt to fill the gap. It is herein presented a mathematical model of a V-belt metal CVT, valid also under transient conditions, where the pulley deformation has been included. The model, implemented in a numerical code, combines Gerbert’s theory of V belts and the contributions of (Sattler, 1999a; Sattler, 1999b) on pulley deformation. An innovative algorithm for the simulation of dynamic effects during shifting is proposed. Inertia effects as well as deformation of pulleys are taken into account. Two type of working conditions have been experimentally monitored and numerically simulated. Finally, the paper contains a description of the experimental apparatus used for the validation of the model herein presented.
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ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 29–October 2, 2002
Montreal, Quebec, Canada
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-3653-3
PROCEEDINGS PAPER
Dynamic Simulation of a Metal Belt CVT Under Transient Conditions
Ettore Pennestri,
Ettore Pennestri
Universita` degli Studi di Roma Tor Vergata, Roma, Italy
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Daniele Sferra,
Daniele Sferra
Universita` degli Studi di Roma Tor Vergata, Roma, Italy
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Pier Paolo Valentini,
Pier Paolo Valentini
Universita` degli Studi di Roma Tor Vergata, Roma, Italy
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Filippo Baldascini
Filippo Baldascini
Centro Ricerche Fiat, Orbassano, Italy
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Ettore Pennestri
Universita` degli Studi di Roma Tor Vergata, Roma, Italy
Daniele Sferra
Universita` degli Studi di Roma Tor Vergata, Roma, Italy
Pier Paolo Valentini
Universita` degli Studi di Roma Tor Vergata, Roma, Italy
Filippo Baldascini
Centro Ricerche Fiat, Orbassano, Italy
Paper No:
DETC2002/MECH-34228, pp. 261-268; 8 pages
Published Online:
June 18, 2008
Citation
Pennestri, E, Sferra, D, Valentini, PP, & Baldascini, F. "Dynamic Simulation of a Metal Belt CVT Under Transient Conditions." Proceedings of the ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 5: 27th Biennial Mechanisms and Robotics Conference. Montreal, Quebec, Canada. September 29–October 2, 2002. pp. 261-268. ASME. https://doi.org/10.1115/DETC2002/MECH-34228
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