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A Study for Applying an Anti-lock Braking System to 4-wheel Drive Cars
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English
Abstract
It is said that a four-wheel drive (4WD) system which can control the distribution of driving torque to the front and rear axles will result in remarkably improved tractive and cornering performance. However, because of the difficulty in obtaining accurate vehicle speed information and in identifying the influence of engine brake torque on performance on slippery roads, it has been difficult to apply an anti-lock braking system (ABS) to vehicles equipped with such a 4WD system.
This paper discusses a solution to this problem achieved through the utilization of a vehicle dynamic simulation model and a new integrated anti-lock and traction distribution control method. The existence of an optimum front/rear torque split which makes it possible to estimate vehicle speed accurately and to obtain the best level of ABS control performance is shown.
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Authors
- Tadashi Suzuki - Electronics Research Laboratory Central Engineering Laboratories Nissan Motor Co., Ltd.
- Yoshiki Yasuno - Electronics Research Laboratory Central Engineering Laboratories Nissan Motor Co., Ltd.
- Takeshi Fujishiro - Electronics Research Laboratory Central Engineering Laboratories Nissan Motor Co., Ltd.
- Toshiro Matsuda - Chassis Design Department Nissan Motor Co., Ltd.
- Hitoshi Kubota - Chassis Design Department Nissan Motor Co., Ltd.
Citation
Suzuki, T., Yasuno, Y., Fujishiro, T., Matsuda, T. et al., "A Study for Applying an Anti-lock Braking System to 4-wheel Drive Cars," SAE Technical Paper 890832, 1989, https://doi.org/10.4271/890832.Also In
References
- Lanze H. “Permanent and Part-Time Four Wheel Drive and Typical Tractive Force Distribution,” SAE Paper No. 861369 1986
- Tani Masanori Yuasa Hiroo Isoda Keiji “Controllability and Stability of Various Types of Four Wheel Drive Cars,” SAE Paper No. 870542 1987
- Margolis Donald L. Frank Andrew A. Morimoto Kyomi “Directional Stability Augmentation for All Wheel Drive Vehicle,” SAE Paper No. 880701 1988
- Torii Shuuji Yaguchi Eiichi Ozaki Kiyotaka et al. “Electronically Controlled Torque Split System for 4WD Vehicles,” SAE Paper No. 861349 1986
- Zomotor A. Leiber H. Neundorf S. et al “Mercedes-Benz 4MATIC, an Electronically Controlled Four-Wheel Drive System for improved Active Safety,” SAE Paper No. 861371 1986
- Sakakiyama Ryuzo Usunami Shoichi “Development of Computer-controlled Active Torque Split 4WD,” Journal of the Society of Automotive Engineers of Japan 42 8 1988
- Iwatani Masato Watanabe Tamahiro “Prospects for 4WD as seen from the Standpoint of ABS,” Symposium on New Technologies and Developments Surrounding 4WD December 12 1986
- Kubota Hitoshi Kubo Jun Ishikawa Yasuki “Optimal Control Technology for ABS,” Journal of the Society of Automotive Engineers of Japan 42 2 1988
- Funakoshi Takeshi Nishikawa Susumu Tani Masanori “Four-wheel Anti-lock Braking System for 4WD Vehicles,” Journal of the Society of Automotive Engineers of Japan 42 2 1988