1-12 GENERAL SPECIFICATIONS E UROCARGO Euro 4/5 Height of the centre of gravity The height of the centre of gravity of the chassis cab is given in the technical documentation specific to each model (chassis drawing). For testing the vehicle complete with superstructure, the bodybuilder must check that the height of the centre of gravity of the equipment including the payload, or of the entire vehicle when fully loaded, falls within the maximum permitted values. These limits are defined in compliance with the national or international regulations (e.g. as amended by the current EC braking Directive) or requested by the Manufacturer to ensure good handling of the vehicle (e.g.
transverse stability of the moving vehicle). In order to comply with the current EC Directive, IVECO provides information for the various models (wheelbase and specific body) on computer, regarding: - height of centre of gravity of chassis cab (e.g. chassis cab diagram, braking data); - maximum height of centre of gravity of complete vehicle at full load (e.g. national type-approval document); - braking capacity of each single axle (e.g. braking data). Figure 1.3 Verification with full load: Ht = Wv . Hv + Ws . Hs Wv + Ws Hs = (Wv + Ws) . Ht − Wv .
Hv Ws Wv = Chassis cab vehicle kerb weight Hv = Height of centre of gravity of chassis cab vehicle (laden condition) Ws = Body and payload Hs = Height of centre of gravity of body and payload in relation to ground Wt = Vehicle weight when fully loaded Ht = Height of centre of gravity of vehicle fully laden to gvw To check the vehicle with its body but no payload, use above formula but for Ws use only the body kerb weight (The position for Hv will depend on the load and deflection of the suspension). The height of the centre of gravity indicated in Figure 1.3 represents values which are not to be exceeded for each given equipment level.
These values have been calculated only in terms of the transverse stability of the vehicle and are applicable to a mid wheelbase. Any other possible restrictive specification, e.g. braking regulation, should be taken into consideration. The values given in Figure 1.3 refer to the superstructure with fixed payload. In versions where the payload tends to move on side (e.g. suspended loads, fluid loads etc.) especially when turning, higher dynamic stress is generated which makes the vehicle less stable. This must be taken into consideration when providing vehicle operating instructions or for possible reduction in the height of the centre of gravity.
Dimensions and weights Base - January 2008 Print 603.93.431