Development of a Mobile Tire Test Fixture and Lateral Force Variations Due to Large Camber Angles 910019

A Mobile Tire Testing Machine (MTTM) was designed and built with several unique features. This machine measures forces and moments of passenger car and smaller tires throughout large ranges of parameters. It can steer and camber up to 45 degrees, test on any surface, and continuously steer and camber without tire scrub. This last feature benefits acquisition of transient tire data since any external forces due to tire scrub are minimized. Typical passenger car tire test results are presented along with tests conducted at camber angles up to 25 degrees where the cornering force due to the camber angle offsets the cornering force due to slip angle. Trends noted in these high camber angle tests are discussed.


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