NDLI: Estimation of the tire cornering stiffness and its application to active car steering

Content Provider	IEEE Xplore Digital Library
Author	Sienel, W.
Copyright Year	1997
Description	Author affiliation: Inst. of Robotics & Syst. Dynamics, German Aerosp. Res. Establ., Oberpfaffenhofen, Germany (Sienel, W.)
Abstract	Active steering systems can help the driver to master critical driving situations, for example aquaplaning and /spl mu/-split braking. In these situations it is likely that the tires reach their performance limits, where nonlinear effects like saturation play an important role. Tires are the part in vehicle dynamics afflicted with the highest degree of nonlinearity due to saturation-and uncertainty-due to weather conditions. Therefore, active steering systems have to be designed considering the uncertain and nonlinear tire characteristics which are determined by the road-tire-contact. This paper demonstrates how an important tire parameter, the cornering stiffness, can be estimated by measurement of dynamic vehicle parameters like lateral accelerations and yaw rate. This parameter indicates whether the saturation region of the tire is reached or not. Based on the estimate of the tire the robust decoupling control law by Ackermann (1996) for active front steering is extended.
Starting Page	4744
Ending Page	4749
File Size	511639
Page Count	6
File Format	PDF
ISBN	0780341872
ISSN	01912216
DOI	10.1109/CDC.1997.649759
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-12-12
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tires Vehicle dynamics Vehicles Robustness Steering systems Acceleration Roads Wheels Vehicle driving Aerodynamics
Content Type	Text
Resource Type	Article

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