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Effects of Crosswinds on Vehicle Response – Full-Scale Tests and Analytical Predictions
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Abstract
Full-scale vehicle response tests were conducted on five vehicles using a crosswind disturbance test facility capable of providing a 35 mph wind over a nominal 120 ft test length. The vehicles were a Honda Accord, Chevrolet station wagon, Ford Econoline van, VW Microbus, and Ford pickup/camper. Results showed that passenger cars, station wagons, and most vans have virtually no crosswind sensitivity problems, whereas the VW Microbus, the pickup/camper (in winds higher than 35 mph), and cars pulling trailers do have potential problems. Key vehicle parameters dictating this yaw response sensitivity are the distance between the aerodynamic and tire force centers, tire restoring moment (including understeer gradient), and the basic aerodynamic side forces. A simple analytical relationship in these terms was developed to predict steady-state yaw rate in steady winds. The collected results show the validity of the simplified expressions and define the relationship between subjective driver ratings and the objective measures. This latter step represents the first attempt at defining maximum allowable crosswinds for a given vehicle response.
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Citation
Klein, R. and Hogue, J., "Effects of Crosswinds on Vehicle Response – Full-Scale Tests and Analytical Predictions," SAE Technical Paper 800848, 1980, https://doi.org/10.4271/800848.Also In
References
- Klein R. H. Hogue J. R. “Development of Aerodynamic Disturbance Test Procedures. Vol. II: Technical Report.” August 1979 800142
- Weir D. H. Ringland R. F. Heffley R. K. Ashkenas I. L. “An Experimental and Analytical Investigation of the Effect of Truck-Induced Aerodynamic Disturbances on Passenger Car Control and Performance.” October 1971
- Tsuchiya S. Harada H. Watari A. “Some Experimental and Theoretical Analyses on the Disturbed Motion of a Vehicle as a Closed Loop System.” Paper presented at XVIth FISITA Congress 1975
- Klein R. H. Blauvelt A. A. Van Valkenburgh P. G. “Development and Calibration of an Aerodynamic Disturbance Test Facility. Vol. III: Construction, Calibration, and Operation.” June 1978 800143
- Milliken W. F. Whitcomb D. W. Segel, L. et al. “Research in Automobile Stability and Control and in Tyre Performance.” 1956
- Weir D. H. Shortwell C. P. Johnson W. A. “Dynamics of the Automobile Related to Driver Control.” Paper 680194 presented at Aerospace Vehicle Flight Control System A-18 Committee Meeting February 1967
- McRuer D. Klein R. “Effects of Automobile Steering Characteristics on Regulation Tasks.” Paper 760778 presented at Automobile Engineering Meeting Octobeer 1976
- Weir D. H. DiMarco R. J. McRuer D. T. “Evaluation and Correlation of Driver/Vehicle Data. Vol. II: Technical Report.” April 1977
- July 1975
- 1977
- April 1968
- Bundorf R. T. Pollock D. E. Hardin M. C. “Vehicle Handling Response to Aerodynamic Inputs.” June 1963