This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Transient Analysis of All Terrain vehicle Lateral Directional Handling & Stability
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 01, 1989 by SAE International in United States
Annotation ability available
All Terrain Vehicles (ATVs) have unique design features, including low pressure tires, a solid rear axle (i.e., no differential), and a relatively high center of gravity compared to wheel track width, that exert significant influence on their lateral/directional handling and stability properties. In addition, rider weight is a reasonable proportion of vehicle weight and weight shift is used as an additional control means in combination with steering, throttle and braking. This paper describes a nonlinear, time domain simulation analysis of the transient lateral/directional response properties of ATVs with rider control. The simulation is derived from earlier automotive applications. A description of the analytic model and computer simulation are given along with validation comparisons of instrumented vehicle field test data and computer simulation runs. Simulation analysis of limit performance maneuvering situations is given to illustrate the lateral/directional handling and stability issues of oversteer and spinout, and rollover.
CitationAllen, R., Rosenthal, T., Klyde, D., and Szostak, H., "Transient Analysis of All Terrain vehicle Lateral Directional Handling & Stability," SAE Technical Paper 891109, 1989, https://doi.org/10.4271/891109.
- SegelL, “Theoretical Prediction and Experimental Substantiation of the Response of the Automobile to Steering Control,” Research in Automobile Stability and Control in Tire Performance, Proceedings of the Automobile Div., The Institution of Mechanical Engineers, No. 7, 1956-7 pp. 26-46.
- WeirD.H., ShortwellC.P., JohnsonW.A., “Dynamics of the Automobile Related to Driver Control,” SAE Paper No. 680194, Feb. 1967.
- EllisJ.R., Vehicle Dynamics, London Business Books Limited, London, S.E.I., Great Britain, 1969.
- GarrottW.R., WilsonD.L, and ScottR.A., “Digital Simulation for Automobile Maneuvers,” Simulation, Sept. 1981, pp. 83-91.
- AllenR.W., RosenthalT.J., and SzostakH.T., “Steady State Transient Analysis of Ground Vehicle Handling,” SAE Paper No. 870485, Nov. 1986.
- AllenR.W., SzostakH.T., RosenthalT.J., “Analysis and Computer Simulation of Driver/Vehicle Interaction,” SAE Paper No. 871086, May 1987.
- AlienR.W., SzostakH.T., RosenthalT.J. et al., “Test Methods and Computer Modeling for the Analysis of Ground Vehicle Handling,” SAE Paper No. 861115, Aug. 1986.
- AlienR.W., SzostakH.T., RosenthalT.J. et al., “Steady State and Dynamic Properties of All Terrain Vehicles Related to Lateral/Directional Handling and Stability,” SAE Paper No. 891104, Mar. 1989
- HollowayD.C., and WilsonW.H, “Examination of ATV Tire Forces Generated on Clay, Grass, and Sand Surfaces,” SAE Paper No, 891105, Mar. 1989
- ClarkS.K., Mechanics of Pneumatic Tires, ClarkSamuel K. (ed.), U.S. Government Printing Office, Washington D.C., Aug. 1981.
- WeirD.H., and ZellnerJ.W., “An introduction to the Operational Characteristics of All-Terrain Vehicles,” Operational Characteristics of Recreational Vehicle Dynamics. SAE SP-660, Feb. 1986, pp. 79-91.
- WadeAllen, R., RosenthalT.J., and SzostakH.T., Analytical Modeling of Driver Response in Crash Avoidance Maneuvers. Vol. I: Technical Background. DOT HS 807 270, Apr. 1988.
- ATV Off Road Practice Guide, Specialty Vehicle Institute of America (SVIA), Costa Mesa, CA, 1985 (Rev. Jan. 1986)