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 presentingat 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 asat 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 stresssaid 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 leastcoordinates of a centre of gravity (C.G.) in dynamic conditions, thus defined: xb=∑xi*pi/∑pi,yb=∑yi*pi/∑piwhere x(i) and y(i) are the coordinates x and y, respectively, on a resting plane of the ith wheel and p(i) is the vertical component (Fz(i)) of the stress detected for said ith wheel,and coordinates of a centre of the braking forces (C.F.) in dynamic conditions, thus defined: xf=∑xi*fi/∑fi,yf=∑yi*fi/∑fi,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.).