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The Development of CVT Fluids with Higher Friction Coefficients
Technical Paper
2003-01-1978
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The development of new transmission designs continues to affect the vehicle market. Continuously variable transmissions (CVTs) remain one of the more recent designs that impact the vehicle market. A desire for high belt-pulley capacity has driven studies concentrating on metal-on-metal (M/M) friction as a function of the CVT fluid. This paper describes the statistical techniques used to optimize the fluid friction as a function of additive components in a bench-scale, three-element test rig.
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Citation
Vermilya, D. and Ward, W., "The Development of CVT Fluids with Higher Friction Coefficients," SAE Technical Paper 2003-01-1978, 2003, https://doi.org/10.4271/2003-01-1978.Also In
References
- Ward, W.C. Jr. Cerda de Groote, Carlos L. “Statistical Methods to Formulate Belt Drive CVT Fluids with High Friction Coefficients” SAE 2000-01-1871
- Huston, M. E. Tipton, C. D. Qureshi, F. S. Sumiejski, J. L. Derevjanik, T. S. Flask, C. A. Whitticar, D. J. Ward, W. C. “Shifting from Automatic to Continuously Variable Transmissions: A Look at Fluid Technology Requirements,” SAE Paper 1999-01-3614
- Nakazawa, K. Mitsui, H. Kakegawa, K. Murakami, Y. Ishikawa, T. Yauchibara, R. “Performance of a CVT Fluid for High Torque transmitting Belt-CVTs” SAE 982675
- Meyer, R. Daniel Wilkinson, Robert G. 1998 “Bayesian variable assessment” Communications in Statistics, Part A -- Theory and Methods 27 2675 2705
- SAE J2525 “SAE Design Guideline: METAL BELT DRIVE CONTINUOUSLY VARIABLE RATIO (CVT) AUTOMATIC TRANSMISSIONS” 2001