Design and Analysis of a Spherical Continuously Variable Transmission

[+] Author and Article Information
Jungyun Kim, F. C. Park

School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, Korea

Yeongil Park, Mishima Shizuo

Department of Mechanical Design and Production, Seoul National University of Technology, Seoul 139-743, KoreaMishima Energy Laboratory, Kamikotanaka 6 St. 55-2, Nakabaru-ku, Moki-shi, 211, Japan

J. Mech. Des 124(1), 21-29 (Aug 01, 2000) (9 pages) doi:10.1115/1.1436487 History: Received August 01, 2000
Copyright © 2002 by ASME
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Tokyo Motor Show, 1999,
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Kim,  J., Yeom,  H., and Park,  F. C., 1999, “MOSTs: A Mobile Robot with a Spherical Continuously Variable Transmission,” Proc. R. Soc. London, Ser. A, 3, pp. 1751–1756 (Oct. 17–21)
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Standard structure of S-CVT
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Operating principles of S-CVT
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Coordinate system and forces on S-CVT
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Diagram of an armature-controlled dc motor
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Target profile of output speed
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Computed variator angle time profile
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Motor behaviors; reduction vs. S-CVT; (a) motor speed; (b) motor torque
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Power consumption, reduction gear vs. S-CVT
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S-CVT and its test bench (a) S-CVT and its test bench; (b) test bench of S-CVT
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Power efficiency of S-CVT



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