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A Study on the Torque Capacity of Belt CVTs for 2.0-Liter and 3.5-Liter Front-Drive Cars
Technical Paper
2004-01-0478
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
An actual-size belt box tester was used to measure the slip characteristics of 2.0-liter and 3.5-liter class CVTs under a condition of their lowest pulley ratio. The measured results were then used to calculate and compare the element-pulley friction characteristics of both CVTs and the active arc of the element compressive force generated on their primary pulley. A 3-D finite element model, capable of analyzing the 3-D dynamic behavior of the belt and pulleys and stress, was applied to compare the band tensile force and element PV values of the two CVTs. As a result, it was found that the 3.5-liter class CVT has approximately the same percentage of torque capacity allowance and strength limits as the 2.0-liter class unit.
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Citation
Kato, Y., Yamashita, H., and Kono, Y., "A Study on the Torque Capacity of Belt CVTs for 2.0-Liter and 3.5-Liter Front-Drive Cars," SAE Technical Paper 2004-01-0478, 2004, https://doi.org/10.4271/2004-01-0478.Also In
SAE 2004 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V113-6; Published: 2005-07-05
Number: V113-6; Published: 2005-07-05
References
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- Becker, H.J. “Berechnung des Van Doone CVT-Schubgliederbands,” Aachen Kolloquium über Farrzeug und Motorentechnik Aachen 27-29 October 1987 457 485
- Kakegawa K. et al. “Lubrication Oil for a High Torque Capacity Belt CVT,” Annual Tribology Conference of the Japanese Society of Tribologists Tokyo May 1998 252 254 1998
- Shimizu H. et al. “Development of 3-D Simulation or Analyzing the Dynamic Behavior of a Metal Pushing V-Belt for CVTs,” SAE Paper, 2000-01-0828 2000