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New Electonically Controlled Torque Split 4WD System for Improving Cornering Performance
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English
Abstract
A new 4WD systen called the “ATTESA E-TS” has been developed based on a new approach to traction control. The E-TS system employs electronic control to achieve an optimm torque split ratio between the front and rear axles. This system is designed not only to deliver high tractive performance, but also to improve cornering performance under various road-surface friction coefficients and engine outputs. It consists of a transfer unit containing a multiplate clutch, a hydraulic unit, and a control system which is integrated with an anti-lock brake system and employs a wheel speed sensor at each wheel as well as a lateral acceleration sensor.
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Citation
Naito, G., Yaguchi, E., Matuda, T., Asahi, M. et al., "New Electonically Controlled Torque Split 4WD System for Improving Cornering Performance," SAE Technical Paper 900556, 1990, https://doi.org/10.4271/900556.Also In
References
- Torii S. Naito G. et al. “Electronically Controlled Torque Split System for 4WD Vehicles,” SAE Paper 861349 1986
- Yasuno Y. “Research into the Application of ABS to 4WD Vehicles,” JSAE, 882098 1988