Development of a Very Compact 4-Speed Automatic Transmission for 0.66L Mini-car Applications

Paper #:
  • 2000-01-1148

Published:
  • 2000-03-06
Citation:
Tazawa, M., Ishimaru, W., and Bekki, T., "Development of a Very Compact 4-Speed Automatic Transmission for 0.66L Mini-car Applications," SAE Technical Paper 2000-01-1148, 2000, https://doi.org/10.4271/2000-01-1148.
Pages:
8
Abstract:
In response to world environmental concerns, JATCO TransTechnology engineers have been driven to lower fuel consumption of Automatic Transmissions [1]. Our response was to construct a lightweight, compact, 4-speed automatic transmission that uses a neutral idle control, and slipping torque converter lock-up control. This transmission was planned for small cars, adopting powertrains with a reduced number of one-way clutches and small-sized, highly efficient torque converters [2].
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