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Development and Analysis of New Traction Control System with Rear Viscous LSD
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English
Abstract
Traction control systems (TCSs) serve to control brake pressure and engine torque, thereby reducing driving wheel spin for improved stability and handling. Systems are divided into two basic types by the brake control configuration. One type is a one-channel left-right common control system and the other is a two-channel individual control system. This paper presents an analysis of these two types of TCS configurations in terms of handling, acceleration, stability, yaw convergence and other performance parameters. The systems are compared with and without a limited-slip differential (LSD) under various road conditions, based on experimental data and computer simulations. As a result of this work, certain Nissan models are now equipped with a new Nissan Traction Control System with a rear viscous LSD (Nissan V-TCS), which provides both the advantages of a rear viscous LSD in a small slip region and a two-channel TCS in a large slip region. As a result, this system works to improve traction, stability and overall performance under various road conditions.
Authors
Citation
Iwata, T., Murakami, T., and Tamura, M., "Development and Analysis of New Traction Control System with Rear Viscous LSD," SAE Technical Paper 910700, 1991, https://doi.org/10.4271/910700.Also In
References
- Muraoka A. et al. “Torque Split Control System for 4WD Vehicles” Journal of JSAE 41 3 1987 402 410
- Maisch W. et al. “ASR-Traction Control-A Logical Extension of ABS” SAE Paper 870337
- Ise K. et al. “The “Lexus” Traction Control (TRAC) System” SAE Paper 900212