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Effects of Tire Shoulder Wear on Vehicle Rollover Limit Testing
Technical Paper
2003-01-2865
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Rollover testing evaluates whether a vehicle will roll over or slide in emergency steering maneuvers. The results may depend upon consistent tire performance through consecutive runs. Researchers in the past have concluded that tire shoulder wear greatly affects the maximum lateral acceleration capability of the tires. This research, however, was performed in the 1970's on bias-ply tires. Tire technology has improved significantly since these results were published. Recent test results on Firestone Wilderness radial tires suggest that as tire shoulder wear increases, the maximum lateral capacity of the tires does not. This paper presents data from thirty J-turn tests performed through the shoulder life of a tire. Results show that maximum tire adhesion levels were independent of run number or tire shoulder wear level. Vehicle dynamics were also consistent throughout the tire's shoulder wear life. Photographs of real-world accident tires of vehicles that were sliding on dry pavement and ultimately rolled over are also presented. These tire shoulder wear patterns are similar to those seen during limit testing.
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Authors
Citation
Gilbert, M., "Effects of Tire Shoulder Wear on Vehicle Rollover Limit Testing," SAE Technical Paper 2003-01-2865, 2003, https://doi.org/10.4271/2003-01-2865.Also In
References
- Vehicle Handling Performance Highway Safety Research Institute Ervin R. D. Grote P. Fancher P. S. MacAdam C. C. Segel L. November 1972
- “Tire Shoulder Wear in Repetitive Rollover Testing” Automotive Testing Incorporated / Heitz Chassis Lab, Inc. Report No. 111901
- Garrot W. R. Howe J. G. Forkebrock G. “An Experimental Examination of Selected Maneuvers that May Induce on-Road Untripped, Light Vehicle Rollover - Phase II of NHTSA's 1997-1998 Vehicle Rollover Research Program” VRTC-86-0421 July 1999
- Milliken W. F. Milliken D. L. Race Car Vehicle Dynamics SAE Publication 1995
- Dixon J. C. Tires, Suspension and Handling SAE Publication 1996
- Docket No. NHTSA-2001-9663