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Metal Pushing V-belt for Torque Converter-type CVT for 1.5-Liter Class Vehicles

Article of Honda R&D Technical Review Vol.20 No.1

Summary

A metal pushing V-belt for use in a new 1.5 L class torque converter-type CVT (TC-CVT) has been developed.
Because torque is amplified by the torque converter, a TC-CVT places a greater load on the belt than a conventional starting clutch-type CVT (SC-CVT), and the new V-belt therefore had to be able to cope with this increased load.
In order to fit the developed belt for this more severe use environment, the shape of the elements was modified to increase strength, and the accuracy of the shape of the rings was increased by reducing the high order of curvature component, resulting in more stable dynamic behavior. In addition, the hardness of the surfaces of the rings was increased in order to enhance wear resistance.
A noteworthy feature of the developed metal pushing V-belt is the fact that specifications enabling use in a 1.5 L class TC-CVT were achieved using only nine layers of rings.

Reference

(1) Yagasaki, T., Aoyama, H., Saito, T., Ishii, K., Okada, Y., Arikawa, M.: Development of Metal Pushing V-Belt for Continuously Variable Transmission, Honda R&D Technical Review, Vol. 14, No. 1, p. 181-190
(2) Arikawa, M., Shima, H.: The Configuration Evaluation Technique for CVT Steel Belt Rings, Honda R&D Technical Review, Vol. 14, No. 2, p. 57-62

Author (organization or company)

Tooru YAGASAKI(Automobile R&D Center)、Hideaki AOYAMA(Automobile R&D Center)、Masamichi HARADA(Automobile R&D Center)、Kenji HARUE(Automobile R&D Center)、Kenta UMETSU(Automobile R&D Center)

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