A dynamic weighing system of a vehicle

A dynamic weighing system of a vehicle comprising:

• a beam comprising:
• a hollow longitudinal body;
• a first end portion and a second end portion which are opposite one another and parallel to one another and which comprise a part of the relative neutral axis of the beam, the first end portion comprises a first step which extends at least partially along a first longitudinal edge of the beam, the second end portion comprises a second step which extends at least partially along the first longitudinal edge of the beam;
• the first end portion and the second end portion having a relative transversal section that is smaller than the transversal section of the remaining portion of the beam;
• an upper rest surface for receiving the wheel of a vehicle in transit;
• a first lower rest surface which is arranged at the first end portion and a second lower rest surface which is arranged at the second end portion;
• the first lower rest surface and the second lower rest surface being opposite the upper rest surface and extending on the horizontal plane defined by the neutral axis of the beam;
• a base to be arranged in such a way as to be beneath the road surface and comprising a seat conformed so as to receive the beam;
• a plurality of compression load cells which are interposed between the base and the beam in such a way that at least a first compression load cell supports the beam at the first lower rest surface and the at least a second compression load cell supports the beam at the second lower rest surface, the at least a first compression load cell is arranged to abut the first step, and the at least a second compression load cell is arranged to abut the second step;
• a plurality of abutments which are interposed between the beam and the lateral walls of the seat so as to limit the displacements of the beam along a transversal direction to the relative longitudinal axis, each abutment of the plurality of abutments defines, at the beam, a corresponding area, the area being crossed by the horizontal plane defined by the neutral axis of the beam;
• the dynamic weighing system of a vehicle being configured in such a way that, during the transit of a wheel of the vehicle on the upper rest surface, the at least a first compression load cell and the at least a second compression load cell detect the force exerted when abutting, respectively, the first lower rest surface and the second lower rest surface (9).