A Tire Slip-Angle based Speed Control Driver Model for Analysis of Vehicle-Driver Systems at Limit Handling

Paper #:
  • 2015-01-1566

Published:
  • 2015-04-14
DOI:
  • 10.4271/2015-01-1566
Citation:
Koh, Y., Yi, K., and Kim, K., "A Tire Slip-Angle based Speed Control Driver Model for Analysis of Vehicle-Driver Systems at Limit Handling," SAE Int. J. Commer. Veh. 8(1):77-87, 2015, doi:10.4271/2015-01-1566.
Pages:
11
Abstract:
This paper presents a tire slip-angle based speed control race driver model. In developing a chassis control system for enhancement of high-speed driving performance, analysis of the vehicle-driver interaction at limit handling is one of the main research issues. Thus, a driver model which represents driving characteristics in a racing situation is required to develop a chassis control system. Since a race driver drives a vehicle as fast as possible on a given racing line without losing control, the proposed driver model is developed to ensure a lateral stability. In racing situation, one of the reasons which cause the lateral instabilities is an excessive corner-entry speed. The lateral instability in that moment is hard to handle with only a steering control. To guarantee the lateral stability of the vehicle while maximizing a cornering speed, a desired speed is determined to retain a tire slip-angle that maximizes lateral tire forces without front tire saturation. The proposed driver model has been validated with an expert driver's driving data, collected on the Korea International Circuit in Yeongam, Korea.
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