METHOD OF DETERMINATION OF COEFFICIENT OF TOTAL RESISTANCE OF MOTION FOR TEST ROADS RATING

摘要

FIELD: testing equipment.;SUBSTANCE: values of the coefficient are determined using the tested vehicle during its movement on the support surface under lead transient mode of movement as per values of average fuel consumption of the engine and ensured average speed of movement, and coefficient of proportionality n, determined as per equation where Ψ_A is coefficient of resistance of motion on road with even solid pavement; V_q is speed corresponding to reference fuel consumption, km/h; q_k is reference fuel consumption, l/100. Coefficient Ψ_A is determined as per sum of coefficients of rolling resistance f_o and air resistance f_w.;EFFECT: increased accuracy of coefficient of total resistance of motion for test roads rating upon changeable and unstable characteristics, especially of unpaved road.;2 cl, 2 dwg