A Systematic Model for the Analysis of Contact, Side Slip and Traction of Toroidal Drives

[+] Author and Article Information
Y. Zhang

Department of Mechanical Engineering, University of Michigan-Dearborn, Dearborn, MI 48128

X. Zhang, W. Tobler

Ford Research Laboratory, Ford Motor Company, MI 48121

J. Mech. Des 122(4), 523-528 (Apr 01, 1999) (6 pages) doi:10.1115/1.1290248 History: Received April 01, 1999
Copyright © 2000 by ASME
Topics: Force , Rollers , Traction , Disks
Your Session has timed out. Please sign back in to continue.


Hewko, L. O., 1986, “Automotive Traction Drive CVTs—An Overview,” SAE Paper 861355.
Loewenthal, S. H., and Rohn, D. A., 1983, “Advances in Traction Drive Technology,” SAE Paper 831304.
Nakano, M., Hibi, T., and Kobayashi, K., 1992, “Dual-Cavity Half Toroidal CVT for Passenger Cars,” SAE Paper 922105.
Machida, H., and Hurachi, N., 1990, “Prototype Design and Testing of the Half Toroidal CVT,” SAE Paper 900552.
Machida, H., and Abe, T., 1996, “Fatigue Life Analysis of a Traction Drive CVT,” SAE Paper 9636402.
Kumura, H., Nakano, M., Hibi, T., Sugihara, J., and Kobayashi, K., 1996, “Performance of a Dual-Cavity Half-Toroidal CVT for Passenger Cars,” SAE Paper 9636466.
Machida, H., and Imanishi, Y., 1995, “Design Principle of High Power Traction Drive CVT,” SAE Paper 950675.
Imanishi, T., Machida, H., and Tanaka, H., 1996, “A Geometric Study of Toroidal CVT—a Comparison of Half Toroidals and Full Toroidals,” SAE Paper 9636411.
Tevaarwerk,  J. L., and Johnson,  K. L., 1979, “The Influence of Fluid Rheology on the Performance of Traction Drives,” ASME J. Lubr. Technol., 101, pp. 266–274.
Tanaka,  H., 1989, “Power Transmission of a Cone Roller Toroidal Traction Drive,” JSME Int. J., Ser. III, 32, No. 1, pp. 82–90.
Tanaka,  H., and Eguchi,  M., 1993, “Stability of a Speed Ratio Control Servo-Mechanism for a Half-Toroidal Traction Drive CVT,” JSME Int. J., Ser. C, 36, No. 1, pp. 135–140.
Machida, H., and Kurachi, N., 1990, “Prototype Design and Testing of the Half Toroidal CVT,” SAE Paper 900552.
Burr, A. H., 1981, Mechanical Analysis and Design, Elsevier, New York.


Grahic Jump Location
Normalized traction and side slip forces vs roller offset
Grahic Jump Location
Geometry of a half toroidal CVT
Grahic Jump Location
FBD of the loading mechanism
Grahic Jump Location
Change of contact point due to roller axis offset
Grahic Jump Location
Directions of creep, side slip and spin
Grahic Jump Location
Directions of traction and side slip on the contact ellipse




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In