This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Toyota Computer Controlled Four-Speed Automatic Transmission
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1982 by SAE International in United States
Annotation ability available
As the computer control concept develops, its application has potential answers to better fuel economy requirements in the automotive industry. Under overall programs to upgrade the total vehicle performance, Toyota has been developing automatic transmissions systematically. A new automatic transmission employing a microcomputer was introduced for better economy and driveability. The microcomputer controls shift and lock-up clutch operating schedules. The transmission ensures mechanical coupling from the low gear for high efficiency while maintaining superior shift quality with the lock-up clutch control during shift transition. It also offers shift pattern selection for various driving conditions and driver’s preference.
- Yutaka Taga - Chassis and Drive Train Engineering Dept., Toyota Motor Co., Ltd
- Kazumasa Nakamura - Chassis and Drive Train Engineering Dept., Toyota Motor Co., Ltd
- Hiroshi Ito - Chassis and Drive Train Engineering Dept., Toyota Motor Co., Ltd
- Takao Taniguchi - Product Engineering and Development Dept., Aisin-Warner, ltd
CitationTaga, Y., Nakamura, K., Ito, H., and Taniguchi, T., "Toyota Computer Controlled Four-Speed Automatic Transmission," SAE Technical Paper 820740, 1982, https://doi.org/10.4271/820740.
- Numazawa, A. Kubo, S. Shindo Y. and Moroto, S. “Toyota Four-Speed Automatic Transmission with Overdrive” Paper 780097 presented at SAE Automotive Engineering Congress, Detroit, February 1978.
- Ishihara. T. Numazawa, A. Suzuki K. and Yokoi, T. “Automatic Transmission Optimization for Better Fuel Economy” The 17TH FISITA Congress, June 1978.