Browse > Article

Analysis of Transient Maneuvers for Objectifying Evaluation of Vehicle Stability  

Kim, Jung-Sik (Department of Vehicle Dynamics Research Team, Hankook Tire Co. Ltd., R&D Center)
Kim, Young-Tae (Department of Mechanical Engineering, KAIST)
Yoon, Yong-San (Department of Mechanical Engineering, KAIST)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.14, no.1, 2006 , pp. 167-175 More about this Journal
Abstract
Directional stability is important performance in vehicle and tire design. The current methods to analyze this is generally based on linear concept. Using the existing concept, it cannot realistically explain the subjective assessment at all because it is hard to practically represent the nonlinear behaviour of a complex vehicle system in reality. In this paper, new method to analyze directional stability is introduced. At first, directional stability of vehicle is categorized into yaw, rear axle, and roll stability. In order to objectify these items, driver perceptual parameters based on subjective assessment are used. Using the perceptual parameters, it can successfully explain the transient maneuver of vehicle and extract objective parameters for directional stability. Finally, these objective parameters are successfully validated through two handling tests, lane change and severe lane change. The correlation results show that there exists a good correlation between subjective assessment and the proposed objective parameters.
Keywords
Vehicle/Tire; Subjective assessment; Objective test; Lane change; Severe lane change; Yaw stability; Rear axle stability;
Citations & Related Records
연도 인용수 순위
  • Reference
1 W. Bergman, 'Measurement and Subjective Evaluation of Vehicle Handling,' SAE 730492, 1973
2 R. Bentley, Speed Secrets: Professional Race Driving Techniques, MBI Publishing Company, 1998
3 C. Lopez, Going Faster: Mastering the Art of Race Driving, Robert Bentley, Inc., 1997
4 J. S. Bendat and A. G. Piersol, Random Data: Analysis and Measurement Procedures, A Wiley-Interscience Publication, pp.48-83, 2000
5 C. Smith, Tune to Win:The Art and Science of Race Car Development and Tuning, Aero Publishers, Inc., 1978
6 F. Fuhn, How to Make Your Car Handle, HP Books, 1981
7 B. K. Cho and S. J. Song, 'An Analysis of Vehicle Handling Characteristics with ADAMS,' Transactions of KSAE, Vol.4, No.5, pp.109-118, 1996
8 G. Gim and J. Kim, 'Objectification of Subjective Assessment on Transient Steer Characteristic,' FISIT A2004, No. F2004F071, 2004
9 P. Fancher, L. Segal, J. Bernard and R. Ervin, 'Test Procedures for Studying Vehicle Dynamics in Lane-change Maneuvers,' SAE 760351, 1976
10 T. D. Gillespie, 'Fundamentals of Vehicle Dynamics,' SAE, 1992
11 J. Y. Wong, Theory of Ground Vehicles, John Wiley & Sons, 1978
12 S. L. Walter, 'Quantitative Measurement of Handling Characteristics of Tires and/or Vehicle/Tire Combinations,' US Patent, No.4969212, 1990