MULTI-PLATFORM SYSTEM FOR CHECKING THE BRAKING APPARATUS OF LAND VEHICLES HAVING AT LEAST TWO AXLES

A brake check multi-platform system and a brake checking method for a braking capacity of a vehicle with at least two wheel axles is disclosed, comprising pairs of detection platforms aligned according to a direction of movement on two parallel paths, spaced apart by a distance related to the wheelbase of a vehicle, each detection having presenting at least a resting surface configured with detection and measuring means apt to detect at least a horizontal (Fx(i), Fy(i)) and vertical (Fz(i), p(i)) component of a stress applied by the vehicle wheels to such surfaces, as well as at least a checking unit which detects the trend over time of said at least a horizontal (Fx(i), Fy(i)) and vertical (Fz(i), p(i)) component of the stress said at least a checking unit having data processing means apt to integrate in time said at least a horizontal component (Fx(i), Fy(i)) and vertical component (Fz(i), p(i) ) for each wheel of said wheel axles, wherein said checking unit is arranged to determine, during a braking action of said vehicle on said detection platforms, at least coordinates of a centre of gravity (C.G.) in dynamic conditions, thus defined: xb = ∑ x i * p i / ∑ p i , yb = ∑ y i * p i / ∑ p i where x(i) and y(i) are the coordinates x and y, respectively, on a resting plane of the i wheel and p(i) is the vertical component (Fz(i)) of the stress detected for said i wheel, and coordinates of a centre of the braking forces (C.F.) in dynamic conditions, thus defined: xf = ∑ x i * f i / ∑ f i , yf = ∑ y i * f i / ∑ f i , and determine a risk condition warning proportional to a relationship between the positions of said centre of gravity (C.G.) and said centre of the braking forces (C.F.).