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http://dx.doi.org/10.14775/ksmpe.2019.18.3.049

Assemblability Analysis of the Kinematic Configurations of Ravigneaux-Type Automatic Transmissions  

Kwon, Hyun Sik (Automotive Engineering, Dong-eui University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.18, no.3, 2019 , pp. 49-58 More about this Journal
Abstract
Automatic transmissions are standard equipment in most automotive vehicles because they provide smooth speed shifting and a compact design with multiple speed ratios. Their structure consists mainly of planetary gear sets as power-transmitting devices and brakes and clutches as shifting devices. Several forward and one reverse speed ratios are achieved by actuating shifting devices to connect gears, input and output shafts, and the transmission case. In the development of a new transmission, kinematic configurations reflecting the transmission concept design are required, and the ability of the new concept design to be assembled without any interference among the connections must be demonstrated. In this study, an assemblability analysis of the kinematic configurations of a Ravigneaux-type automatic transmission was conducted with an assemblable example of an 8-speed Ravigneaux-type automatic transmission.
Keywords
Ravigneaux Type; Automatic Transmission; Assembly Check; Planarity Test; Kinematic Configuration;
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1 Kahraman, A., Ligata, H. , Kienzle, K., Zini, D. M., "A Kinematics and Power Flow Analysis Methodology for Automatic Transmission Planetary Gear Trains,'' Journal of Mechanical Design, Vol. 126, No. 6, 1071-1081, 2005.   DOI
2 Raghavan, M., "The Analysis of Planetary Gear Trains,'' Journal of Mechanisms and Robotics, Vol. 2, No. 2, 021005, 2010.   DOI
3 Nishizeki, T., Chiba, N., Planar Graphs: Theory and Algorithms, North-Holland Mathematics Studies, 140 Annals of Discrete Mathematics 32, 1988.
4 Kwon, H. S., Kahraman, A., “An Assemblability Check Methodology for the Kinematic Configurations of Automatic Transmission Planetary Gear Trains,” Journal of Mechanical Science and Technology, Vol. 30, No. 12, pp. 5605-5616, 2016.   DOI
5 Diestel, R., Graph Theory, Springer-Verlag, 2000.
6 Hayabuchi, M., Nishida, M., Kasuya, S., Gotou, K., Aoki, T., "Automotive Transmission for a Vehicle," United States Patent, US6558287B2, 2003.