The World's First Transverse 8-Speed Automatic Transmission

Paper #:
  • 2013-01-1274

Published:
  • 2013-04-08
DOI:
  • 10.4271/2013-01-1274
Citation:
Aoki, T., Kato, H., Kato, N., and Masaru, M., "The World's First Transverse 8-Speed Automatic Transmission," SAE Technical Paper 2013-01-1274, 2013, https://doi.org/10.4271/2013-01-1274.
Pages:
8
Abstract:
We have developed the world's first 8-speed automatic transmission for transverse FWD/4WD vehicles. The aim of this new automatic transmission was to achieve world-class fuel economy while offering both smooth gear shift and sporty shift feeling suitable for luxury cars. This has been accomplished using wide spread gear ratio, outstanding low drag components and highly efficient hydraulic control system. In addition, we have achieved the compactness similar to current 6-speed automatic transmission by adopting new gear train and compact clutch layout. In this paper, the detail of this automatic transmission is introduced.
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