This content is not included in your SAE MOBILUS subscription, or you are not logged in.
The Importance of Tire Lag on Simulated Transient Vehicle Response
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1991 by SAE International in United States
Annotation ability available
This paper discusses the importance of having an adequate model for the dynamic response characteristics of tire lateral force to steering inputs. Computer simulation and comparison with experimental results are used to show the importance of including appropriate tire dynamics in simulation tire models to produce accurate predictions of vehicle dynamics.
Improvements made to the tire dynamics model of an existing vehicle stability and control simulation, the Vehicle Dynamics Analysis, Non-Linear (VDANL) simulation, are presented. Specifically, the improvements include changing the simulation's tire dynamics from first-order system tire side force lag dynamics to second-order system tire slip angle dynamics.
A second-order system representation is necessary to model underdamped characteristics of tires at high speeds.
Lagging slip angle (an input to the tire model) causes all slip angle dependent tire force and moment outputs to be lagged. This is a better representation of the actual physical system than merely lagging the tire side force.
The modified tire dynamics were implemented into VDANL, which improved simulation predictions in both the time and frequency domains.
|Technical Paper||Tire Modeling Requirements for Vehicle Dynamics Simulation|
|Technical Paper||Transient Tire Properties|
|Technical Paper||Modeling of Dynamic Characteristics of Tire Lateral and Longitudinal Force Responses to Dynamic Inputs|
CitationHeydinger, G., Garrott, W., and Chrstos, J., "The Importance of Tire Lag on Simulated Transient Vehicle Response," SAE Technical Paper 910235, 1991, https://doi.org/10.4271/910235.
Vehicle Dynamics and Electronic Controlled Suspensions
Number: SP-0861; Published: 1991-02-01
Number: SP-0861; Published: 1991-02-01
- Heydinger, G. J. et. al. “Validation of Vehicle Stability and Control Simulations,” SAE Paper 900128 SAE Congress and Exposition 1990
- Heydinger, G. J. et. al. “The Dynamic Effects of Tire Lag on Simulation Yaw Rate Predictions,” ASME Winter Annual Meeting 108 Transportation Systems - 1990 77 86 1990
- Heydinger, G. J. “Improved Simulation and Validation of Road Vehicle Handling Dynamics,” Ph.D. Dissertation The Ohio State University Columbus, Ohio 1990
- Allen, R. W. Rosenthal, T. J. Szostak, H. T. “Steady State and Transient Analysis of Ground Vehicle Handling,” SAE Paper 870495 SAE Congress and Exposition 1987
- Allen, R. W. Rosenthal, T. J. Szostak, H. T. “Analytical Modeling of Driver Response in Crash Avoidance Maneuvering, Volume I: Technical Background,” DOT-HS-807-270, Systems Technology, Inc. 1988
- Heydinger, G. J. “A Methodology for Validating Vehicle Dynamics Simulations,” TRB, Transportation Research Record 1270 97 106 1990
- Garrott, W. R. Chrstos, J. P. Monk, M. W. “Vehicle Inertial Parameters - Measured Values and Approximations,” SAE Paper 881767 SAE Passenger Car Meeting and Exposition 1988
- Ellis, J. R. et al. “Suspension Testing Using The Suspension Parameter Measurement Device,” SAE Paper 870577 SAE Congress and Exposition
- Chrstos, J. P. “A Simplified Method for the Measurement of Composite Suspension Parameters,” SAE Paper 910232 SAE Congress and Exposition 1991
- Tapia, G. A. “Extended Tire Testing,” DOT 6871-V-1 Calspan Corporation 1983
- Guenther D. A. Loeb, J. S. Ellis, J. R. Chen F “Lateral Stiffness, Cornering Stiffness, and Relaxation Length of the Pneumatic Tire,” SAE Paper 900129 SAE Congress and Exposition 1990
- Loeb, J. S. “The Measurement of Tire Static Stiffnesses and Their Relation to Relaxation Lengths,” The Ohio State University Columbus, Ohio 1985
- Allen, R. W. Rosenthal, T. J. Szostak, H. T. “Analytical Modeling of Driver Response in Crash Avoidance Maneuvering, Volume II: An Interactive Tire Model for Driver/Vehicle Simulation,” DOT-HS-807-271 Systems Technology, Inc. 1988
- Furuichi, T. Sakai, H. “Dynamic Cornering Properties of Tires,” SAE Paper 780169 SAE Congress and Exposition 1978
- Rogers, L. C. Brewer, H. K. “Synthesis of Tire Equations for Use in Shimmy and Other Dynamic Studies,” Journal of Aircraft 8 9 September 1971
- Weber, R. Persch, H. G. “Frequency Response of Tires - Slip Angle Lateral Force,” SAE Paper 760030 SAE Congress and Exposition 1976
- Lippman, S. A. Oblizajek, K. L. “Lateral Forces of Passenger Tires and Effects on Vehicle Response During Dynamic Steering,” SAE Paper 760033 SAE Congress and Exposition 1976
- Collins, R. L. “Frequency Response of Tires Using the Point Contact Theory,” Journal of Aircraft 9 6 June 1972
- Bergman, W. “Critical Review of the State-of -the-Art in the Tire Force and Moment Measurements,” SAE Paper 770331 SAE Congress and Exposition 1977
- Segel, L. “Force and Moment Response of Pneumatic Tires to Lateral Motion Inputs,” Transactions of the ASME - Journal of Engineering for Industry February 1966
- Schuring, D. J. Gusakov, I. “Tire Transient Force and Moment Response to Simultaneous Variations of Slip Angle and Load,” SAE Paper 760032 SAE Congress and Expo. 1976
- Van Zanten, A. Ruf W. D. “Measurement and Simulation of Transient Tire Forces,” SAE Paper 890640 SAE Congress and Exposition 1989
- Arden, B. W. Astill, K. N. Numerical Algorithms: Origins and Applications Addison-Wesley Publishing Company Reading, Massachusetts 1970
- Van Zanten, A. Erhardt, R. Lutz, A. “Measurement and Simulation of Transients in Longitudinal and Lateral Tire Forces,” SAE Paper 900210 SAE Congress and Exposition 1990