PREDICTION MODEL FOR SEDAN CLASS VEHICLE BRAKING DISTANCE ON A FLAT SURFACE USING EXPERIMENTAL BRAKING TESTS FOR DIFFERENT ROAD SURFACES

Alexandru Ionut RADU, Daniel Dragos TRUSCA, George TOGANEL

Abstract


Vehicle braking distance is a critical parameter when it comes to accident reconstruction. Determining the effective vehicle braking distance depends on a couple of parameters such as tire wear, road surface, vehicle type and mass and vehicle braking system. This paper sets on presenting a case for a braking distance model based on real world situations compared to theoretical braking curves. In order to develop this model, experimental tests had to be conducted, on different surfaces such as snow, partial snow and asphalt, using the same type of vehicle and studying its dynamics parameters. Based on the tests taken, a new mathematical model has been obtained using a polynomial function of the second order, for each type of road surface, for a sedan class vehicle, with 25% - 50% worn tires.


Keywords


Vehicle; Braking distance; Safety; Mathematical formulas; Experimental tests

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