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Development of New Sports Shift Control System for Toyota's Automatic Transmission
Technical Paper
2008-01-0535
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Toyota has developed a new sports shift control system introduced in the world's first eight-speed automatic transmission (AA80E), which is implemented in the “LS 460” and has been adopted in the “IS F” (upcoming 2008 model). This enables the IS F to be a vehicle that also permits the enjoyment of driving on circuits as well as achieving that “fun-to-drive” image.
In sports driving, as achieved by the conventional torque converter-type automatic transmissions, shift response performance for shift operation and linearity performance for accelerator operations were challenges to tackle. On the contrary, the newly developed sports shift control system has resolved these challenges and enables the IS F to be capable of responding to a driver's intention quickly and accurately, letting the driver truly experience satisfaction.
This paper describes a general outline of the new sports shift control system that has significantly contributed to improvements in the IS F product appeal and introduces the effects of the overall technical system.
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Authors
Citation
Kobayashi, N., Tokura, T., Shiiba, K., Fukumasu, T. et al., "Development of New Sports Shift Control System for Toyota's Automatic Transmission," SAE Technical Paper 2008-01-0535, 2008, https://doi.org/10.4271/2008-01-0535.Also In
References
- ota H. nozaki K. Honda A. Kinoshita M. aoki T. toudou M. Iwase M. Toyota's World First Automatic Transmissions for Passenger Cars SAE 2007-01-1101
- kondo M. hasegawa Y. takanami Y. arai K. Tanaka M. Kinoshita M. Ootuki T. Yamaguchi T. Fukatsu A. Toyota AA80E 8-Speed Automatic Transmission with Novel Powertrain Control System SAE 2007-01-1331
- Tokura T. asami T. hasegawa Y. Sugimura T. kono K. aoki K, Development of Smooth Up-Shift Control Technology for Automatic Transmissions with Integrated Control of Engine and Automatic Transmission SAE 2007-01-1310
- Kuwahara Seiji Kubonoya Hideki Mizuno Hiroshi Kaigawa Masato Kono Katsumi Toyota's New Integrated Drive Power Control System SAE 2007-01-1306