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A Method for Selecting Parallel-Connected, Planetary Gear Train Arrangements for Automotive Automatic Transmissions
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English
Abstract
A new design method for automatic transmission layout is introduced. This method is based on the lever analogy for planetary gear sets. It uses the desired number of ratios and their magnitudes to size and proportion the generalized lever. The lever is then reduced, yielding the specific gear train and the gear set ratios. This systematic approach eliminates most of the iterations and “dead ends” typical of the design process, since the requirements of the application are used to drive the design.
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Citation
Ross, C. and Route, W., "A Method for Selecting Parallel-Connected, Planetary Gear Train Arrangements for Automotive Automatic Transmissions," SAE Technical Paper 911941, 1991, https://doi.org/10.4271/911941.Also In
References
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- Benford, H. L. Leising M. B. “The Lever Analogy: A New Tool in Transmission Analysis.” SAE Paper No. 810102 1981
- Koch, L. G. “Power Train-Vehicle Modeling to Simulate Shifting Transients of Off-Highway Vehicles.” SAE Paper No. 720044 1972
- Nimmo, P. E. “Shortcut to Interactive Drivetrain Simulation.” SAE Paper No. 880183 1988