Design 2-Speed Transmission for Compact Electric Vehicle Using Dual Brake System
- Authors
- Han, Jae-Oh; Shin, Jae-Won; Kim, Jae-Chang; Oh, Se-Hoon
- Issue Date
- May-2019
- Publisher
- MDPI
- Keywords
- environmentally friendly; downsizing; fuel efficiency; electric vehicle; planetary gear; transmission
- Citation
- Applied Sciences-basel, v.9, no.9
- Journal Title
- Applied Sciences-basel
- Volume
- 9
- Number
- 9
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/32776
- DOI
- 10.3390/app9091793
- ISSN
- 2076-3417
2076-3417
- Abstract
- Mega trends in the global automotive industry are environmentally friendly. As laws and regulations tighten at the government level, the automobile industry is striving to develop a drive system that can operate without using fossil fuels, instead of developing an internal combustion engine using fossil fuels. Environmentally-friendly energy is attracting attention as an alternative to solve the problems of air pollution and fossil fuel depletion. Electricity is attracting the most attention among environmentally-friendly alternative fuels. In addition, research on the development of a high-efficiency and high-reliability advanced electric automobile drive system are actively being carried out. In this study, a two-speed transmission for electric vehicles is developed using environmentally-friendly fuel. The 1st and the 2nd planetary gear modules were integrated, the ring gear and the carrier gear were shared, and the dual disc brake was used to design a mechanism for fixing each sun and shifting gear. Such a structure can improve shift energy efficiency compared to that of conventional transmissions. It was judged that the structure was suitable for an electric car using a limited power supply. Each gear was designed by calculating bending strength and surface durability.
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Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
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