RESEARCH ON THE INFLUENCE OF STRUCTURAL PARAMETERS  ON THE PERFORMANCE OF SYNCHRONIZERS ON AUTOMOTIVE TRANSMISSIONS

Lương Quang Huy; Trần Văn Dũng

doi:10.34238/tnu-jst.12653

RESEARCH ON THE INFLUENCE OF STRUCTURAL PARAMETERS ON THE PERFORMANCE OF SYNCHRONIZERS ON AUTOMOTIVE TRANSMISSIONS

About this article

Received: 23/04/25 Revised: 14/07/25 Published: 14/07/25

Authors

1. Luong Quang Huy , TNU - University of Information and Communication Technology
2. Tran Van Dung, TNU - University of Information and Communication Technology

Abstract

The automotive transmission is a component that transmits power between the input and output shafts through the engagement of gear pairs. During transmission operation, the risk of gear collision is high due to the speed difference during gear shifting. The synchronizer is employed to ensure smooth gear transitions and prevent gear clash within the gearbox. This paper presents the calculation and analysis of the influence of structural parameters on the performance of the synchronizer, under the assumption of constant friction torque. The computational and analytical results show that when the friction coefficient increases by 0.01, the friction torque increases by 11% to 17%, the synchronization time decreases by 20% to 32%. The computational analyses and simulation outcomes reveal that structural design parameters exert a substantial influence on the operational characteristics of synchronizer assemblies. These insights offer a foundation for developing design strategies that enhance the stability, smoothness, and longevity of synchronizer performance.

Keywords

Automotive transmission; Synchronizer mechanism; Gearshift control; Friction torque; Synchronous time

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DOI: https://doi.org/10.34238/tnu-jst.12653

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