Light Vehicle ABS Performance Evaluation Phase II

摘要

Eight different light vehicles, each with a different antilock braking system(ABS), were tested to determine how the ABS influenced vehicle stopping distance, stability and control on various road surfaces. An epoxy coated surface, which when wet has a very low coefficient of friction approaching that of ice, was used by itself and in combination with higher friction surfaces to produce split (left to right) friction test lanes and a high to low friction transition test lane. A split friction test lane with gravel and asphalt was also utilized. Results of the tests on these surfaces indicated that the ABS greatly enhanced stability and control. The effect of ABS on stopping distance was mixed, however. On some of the test surfaces it decreased stopping distance while on others it increased it. The increase was significant on the asphalt/gravel split friction surface for most of the ABS evaluated.