Long Pinions for Alternative Transmission Mechanizations
AbstractMulti-speed transmissions are used in the automotive industry. The design of such transmissions may be framed as an algebraic/graph theory problem. Such an approach is particularly useful for designs with multiple planetary gear sets. Some automotive manufacturers use “long pinions” or “shared pinions” as building block elements within these gear sets. The long pinion is an interesting architectural arrangement that combines certain packaging and functional attributes. In the present article, the algebraic use of the long pinion is demonstrated in the creation of vastly different transmission architectures from the same skeleton diagram.
“International Energy Outlook 2016,” https://www.eia.gov/outlooks/ieo/pdf/0484(2016).pdf, May, 2016.
H. Benford and M. Leising, “The lever analogy: a new tool in transmission analysis,” Society of Automotive Engineers Technical Paper, February 01, 1981.
C. Lewis and B. Bollwahn, “General motors hydra-matic & ford new FWD six-speed automatic transmission family,” Society of Automotive Engineers Technical Paper, April 16, 2007.
T. Singh and R. Olenzek, “General motors small front wheel drive six speed automatic transmission family,” Society of Automotive Engineers Technical Paper, April 12, 2010.
K. Clark, T. Singh, R. Buffa, J. Gayney, et al., “General motors front wheel drive seven speed dry dual clutch automatic transmission,” SAE International Journal of Engines, vol. 8, vol. 3, pp. 1379-1390, April 2015.
M. Raghavan “Synthesis of transmissions with four planetary gearsets,” Proc. of the 14th IFToMM World Congress, October 2010.
T. Grewe, B. Conlon, and A. Holmes, “Defining the general motors 2-mode hybrid transmission,” Society of Automotive Engineers Technical Paper, April 16, 2007.
M. Miller, A. Holmes, B. Conlon, and P. Savagian, “The GM voltec 4ET50 multi-mode electric transaxle,” SAE International Journal of Engines, vol. 4, no. 1, pp. 1102-1114, 2011.
V. Kumar, J. Schmiedeler, S. Sreenivasan, HJ Su, Advances in mechanisms, robotics and design education and research, vol. 14, Heidelberg: Springer, 2013.
J. E. Shigley and J. J. Uicker, Theory of machines and mechanisms, New York: McGraw-Hill, 1980.
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