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Tailoring Automatic Transmission Fluid Shift Quality in the Laboratory
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Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
The influence of lubricant formulation and service degradation on automatic transmission shift quality was studied in full scale transmission cycling tests. Fluid frictional degradation was found to follow a well defined pattern. This pattern is influenced by fluid formulation as well as transmission environment. Both fluid oxidation and selective additive degradation affect the rate of progression through this pattern.
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Authors
Citation
Nann, N. and Pinchbeck, F., "Tailoring Automatic Transmission Fluid Shift Quality in the Laboratory," SAE Technical Paper 650466, 1965, https://doi.org/10.4271/650466.Also In
References
- Haviland M. L. Rodgers J. J. “Friction Characteristics of Automatic Transmission Fluids As Related to Transmission Operation.” Paper presented at 15th ASLE Meeting Cincinnati April 1960
- Smith G. R. Jandasek V. J. Sprague S. R. Singer R. B. “A New Concept of Measuring Frictional Characteristics.” Paper presented at SAE Summer Meeting 1961
- Doyle W. P. Henry C J. Thomas P. R. “A Fundamental Study of Antisquawk Agents.” Paper presented at SAE Meeting 774B Tulsa October 1963
- Albertson C. E. Okubo H. S. “Influence of Lubricant Breakdown on Frictional Performance.” Paper presented at SAE Meeting Detroit January 1963
- Haviland M. L. “Clutch Surface Temperature Measurements in a Controlled - Coupling Automatic Transmission.” Paper presented at SAE Meeting Philadelphia October 1962
- Haviland M. L. Rodgers J. J. Davison E. D. “Surface Temperature and Friction in Lubricated Clutches.” Paper presented at SAE Meeting Detroit January 1963
- Baule W. G. “Automatic Transmission Fluids and Friction Clutches.” Paper presented at SAE Summer Meeting Atlantic City June 1962