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Development of a New Electronically Controlled 4WD System: Toyota Active Torque Control 4WD
Technical Paper
1999-01-0744
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In Japan, Multipurpose vehicles (MPVs) are growing in popularity while sedan popularity is falling. Four wheel drive (4WD) systems on MPVs require wide range torque distribution because the vertical load distribution on the front and rear tires changes greatly. In order to satisfy this requirement for 4WD , Toyota Motor Corporation and Toyoda Machine Works LTD. have developed a new electronically controlled 4WD system named “Active Torque Control 4WD”. This system, by optimum driving force distribution, provides both good handling characteristics and low fuel consumption. And it enables compact drive-line size and light weight.
This paper describes the development aims of the new system, its construction, its control and technological features.
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Citation
Ohba, M., Suzuki, H., Yamamoto, T., and Takuno, H., "Development of a New Electronically Controlled 4WD System: Toyota Active Torque Control 4WD," SAE Technical Paper 1999-01-0744, 1999, https://doi.org/10.4271/1999-01-0744.Also In
References
- Suzuki H. et al. “Development of New Electronic Controlled 4WD system for passenger cars” Preprint of Society of Automotive Engineers of Japan, Inc. 9838402 1998
- Nakamura S. et al. “Toyota EC-HYMATIC - A New Full Time 4WDSystem for Automatic Transmission” SAE Paper 890526 1989
- Takuno H. et al. “Development of New Electromagnetic Controlled Coupling for Four-wheel Drive Vehicles” Preprint of Society of Automotive Engineers of Japan, Inc. 9838417 1998
- Matsuo Y. et al. “Intelligent Four-Wheel-Drive System” SAE Paper 930670 1993