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Rolling Resistance Force Equations and Calculator
Rolling Resistance Force of Vehicle Between Tire and Contacting Surface.
A vehicle can move along only if the sum of all resistances is overcome. Resistances are forces that either balance out the driving force (uniform movement) or are smaller than the driving force (accelerated movement).
FR = G · fR · GZ · cos α
FR = Rolling resistance force, in N ( kg-m / s2 )
fR = Coefficient of rolling resistance, see Table 1
GZ = Overall combined mass, in kg
α = Angle of uphill gradient, in °
G = 9.81, Universal gravity constant (earth) Units m/s2
Table 1: Coefficients of Rolling Resistance
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