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http://dx.doi.org/10.14775/ksmpe.2019.18.11.024

Assemblability Analysis of Kinematic Configurations of Front-Wheel Drive Automatic Transmissions  

Kwon, Hyun Sik (Automotive Engineering, Dong-eui University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.18, no.11, 2019 , pp. 24-34 More about this Journal
Abstract
An automotive automatic transmission is a popular power-transmitting device in passenger vehicles, as it provides various speed ratios for diverse driving conditions with easy manipulation and smooth gear shifting. The transmission is mainly composed of input and output shafts, planetary gear sets, brakes/clutches, and housing, and it yields multiple forward gears and one reverse gear by actuating the shifting devices of the brakes and clutches. In developing a new transmission, kinematic configurations of a transmission, which presents a brief structure and actuation schemes for speed ratios, need to be checked to determine if the structure can be assembled in a layout. It is impossible for a transmission concept having any interference in connecting main components to be developed further in the design process, since connection interference leads to failure of a layout design in the 2-D plane. In this research, an analysis of the assemblability of a front-wheel drive automatic transmission is carried out on an example concept design by applying the vertex addition algorithm based on graph theory.
Keywords
Automatic Transmission; Assembly Check; Planarity Test; Kinematic Configuration; Transmission Design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Benford, H., Leising, M., "The Lever Analogy: A New Tool in Transmission Analysis," SAE Technical Paper, 810102, 1981.
2 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, Issue. 6, 1071-1081, 2005.   DOI
3 Raghavan, M., "The Analysis of Planetary Gear Trains,'' Journal of Mechanisms and Robotics, Vol. 2, Issue. 2, 021005, 2010.   DOI
4 Hsu, C. H., Lam, K. T., "Automatic Analysis of Kinematic Structure of Planetary Gear Trains," Journal of Mechanical Design, Vol. 115, Issue. 3, 631-638, 1993.   DOI
5 Nishizeki, T., Chiba, N., Planar Graphs: Theory and Algorithms, North-Holland Mathematics Studies, 140 Annals of Discrete Mathematics 32, 1988.
6 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, Issue. 12, 5605-5616, 2016.   DOI
7 Kwon, H. S., "Assemblability Analysis of the Kinematic Configurations of Ravigneaux-Type Automatic Transmissions," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 18, No. 3, 49-58, 2019.   DOI
8 Diestel, R., Graph Theory, Springer-Verlag, 2000.
9 Hayabuchi, M., Nishida, M., Kasuya, S., Gotou, K., Aoki, T., "Automotive Transmission for a Vehicle," United States Patent, US6558287B2, 2003.