The Transmission Design of the Seven-Speed Planetary-Gear AT Based on the Lever Method

Yi Fan

doi:10.4028/www.scientific.net/AMM.727-728.449

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 727-728The Transmission Design of the Seven-Speed...

The Transmission Design of the Seven-Speed Planetary-Gear AT Based on the Lever Method

Abstract:

Based on the motion equation of the planetary gear trains, this paper proposes an improved lever method on the original lever method. The structure and the transmission scheme of Toyota A761E’s AT were analyzed by using the improved lever method. Aiming at the deficiencies of the original structure, a kind of new 7-speed AT was designed. By only using 6 shifting actuators, it not only simplifies the automatic transmission’s structure and widens the speed range, but also improves the shifting smoothness and achieves the effects of energy saving and environmental protection.

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Periodical:

Applied Mechanics and Materials (Volumes 727-728)

Pages:

449-452

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.727-728.449

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Online since:

January 2015

Authors:

Yi Fan*

Keywords:

6-Speed Automatic Transmission, 7-Speed Automatic Transmission (AT), Lever Method, Transmission Design

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* - Corresponding Author

References

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