0
TECHNICAL PAPERS

Infinitely Variable Transmission of Racheting Drive Type Based on One-Way Clutches

[+] Author and Article Information
F. G. Benitez, J. M. Madrigal

Transportation Engineering, School of Engineering, University of Sevilla, Camino de los Descubrimientos, Sevilla-41092, Spain

J. M. del Castillo

School of Engineering, University of Extremadura, Avda. De Elvas, Badajoz-06071, Spaine-mail: delcasti@unex.es

J. Mech. Des 126(4), 673-682 (Aug 12, 2004) (10 pages) doi:10.1115/1.1758258 History: Received July 01, 2003; Revised January 01, 2004; Online August 12, 2004
Copyright © 2004 by ASME
Your Session has timed out. Please sign back in to continue.

References

Gott, P. G., 1991, Changing Gears: The Development of the Automotive Transmissions, SAE.
Chironis, N. P., 1991, Mechanisms & Mechanical Devices Sourcebook, McGraw Hill.
Fitz, F. A., and Pires, P. B., 1991, “Geared Infinitely Variable Transmission for Automotive Applications. In Automotive Transmission Advancement,” SAE/SP-91/85, pp. 1–7.
Pires, P. B., 2001, Transmission Ratio Changing Apparatus and Method, US Patent 4,983,151.
Mantriota,  G., 2001, “Theoretical and Experimental Study of a Power Split Continuously Variable Transmission System,” J. of Automobile Engineering, 215, pp. 837–864.
Kim,  K., Park,  F. C., Park,  Y., and Shizuo,  M., 2002, “Design and Analysis of a Spherical Variable Transmission,” ASME J. Mech. Des., 124, pp. 21–29.
Nikas,  G. K., 2002, “Fatigue Life and Traction Modelling of Continuously Variable Transmissions,” ASME J. Tribol., 124, pp. 689–698.
Xu,  L., Huang,  Z., and Yang,  Y., 2003, “Contact Stress for Toroidal Drive,” ASME J. Mech. Des., 125, pp. 165–168.
Benitez, F. G., Gutierrez, J., Campillo, G., and Madroñal, P., 2002, Variable Continuous Transmission System, US Patent 6,371,881 B1.
Benitez, F. G., and Madrigal, J. M., 2002, DWU-3: A Continuous Variable Transmission Based on Epicyclic Gears, SAE paper 2002-01-2200.
Willis, R., 1970, Principles of Mechanisms, Deighton 1841, Longmans, Green.
Yan,  H. S., and Hsieh,  L. C., 1994, “Maximum Mechanical Efficiency of Infinitely Variable Transmissions,” Mech. Mach. Theory, 29, pp. 777–784.
Zhang,  Y., and Leduc,  B., 1992, “Efficiency Predetermination of Planetary Trains Used as Continuously Variable Transmission,” European Journal of Mechanical Engineering, 37, pp. 169–173.
Mangialardi,  L., and Mantriota,  G., 1999, “Power Flow and Efficiency in Infinite Variable Transmissions,” Mech. Mach. Theory, 34, pp. 973–994.
Del Castillo,  J. M., 2002, “The Analytical Expression of the Efficiency of Planetary Gear Trains,” Mech. Mach. Theory, 37, pp. 197–214.
Del Castillo, J. M., del, Pintado P., and Benitez, F. G., 2002, A Procedure for Determining the Efficiency of a Continuously Variable Transmission, SAE paper 2002-01-2199.

Figures

Grahic Jump Location
Schematic diagram of the IVT prototype
Grahic Jump Location
Perspective of the IVT prototype
Grahic Jump Location
View of the elements composing the IVT prototype
Grahic Jump Location
The relationship between the speed of the control plate and the speed of the shafts 3–5
Grahic Jump Location
Labeling of the shafts 3–5 and angle turned by the control plate
Grahic Jump Location
Angular speeds of the shafts 3–5 for ω2=1 rpm and the maximum dimensionless eccentricity
Grahic Jump Location
Rotation speed of gear 4, for the maximum eccentricity
Grahic Jump Location
Angular sector in which transmission of torque takes place between gears 3 and gear 4
Grahic Jump Location
Angular sector in which transmission of torque takes place between gears 5 and gear 6
Grahic Jump Location
Rotation speed of gear 6, for the maximum eccentricity
Grahic Jump Location
Variation of function F(ω2t,e/R) with respect to angle turned by control plate, for different values of eccentricity e
Grahic Jump Location
Oscillatory term ω9 with respect to the angle turned by control plate
Grahic Jump Location
Bench-rig for testing the IVT prototype
Grahic Jump Location
Oscillatory term ω9 with respect to the angle turned by control plate, for several values of eccentricity e
Grahic Jump Location
Efficiency of the IVT as a function of the eccentricity (continuous line: theoretical analysis; dots: experimental data)
Grahic Jump Location
Input angular velocity for the numerical tests carried out on ADAMS
Grahic Jump Location
Output angular velocity as results of the numerical simulations obtained by ADAMS
Grahic Jump Location
Input torque as results of the numerical simulations obtained by ADAMS
Grahic Jump Location
IVT prototype: (a) a detailed picture of shaft 3–5 with one-way clutches, (b) an open view of the elements without the casing, (c) the mounted prototype inside the casing

Tables

Errata

Discussions

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