Suspension group in particular for motorised vehicles

Abstract

Suspension group (4) for motorised vehicles comprising a main spring (16) which extends between a first and a second end (20, 24) of the group (4), a main damper (40) connected in parallel to said main spring (16) said main spring (16) being pre-loaded by pre-loading means which together press the spring (16) in compression and impose a rest length thereon (Lo), namely the length assumed by the spring (16) when there are no further external loads on the first and / or on the second end (20, 24) of the group (4) except for the pre-load caused by the pre-loading means, wherein the first and second end (20, 24) are connected kinematically to a first and a second mass (28, 32) of the motor vehicle respectively. Between at least one of said first and second ends (20, 24) and the respective suspended / non-suspended mass (28, 32) at least one kinematism (44) is placed, in series with the main spring (16) which permits a supplementary stroke (S) between the end (20, 24) to which it is attached and the relative adjacent suspended / non-suspended mass (28, 32), said supplementary stroke (S) increasing the distance between the suspended and non-suspended mass (28, 32) imposed by the extension of the main spring (16), providing a supplementary stroke (S), after the main spring (16) has extended reaching its rest length (Lo).

Description

technical field [0001] The invention relates to a suspension assembly, in particular for a motor vehicle. Background technique [0002] It is well known that in motorized land vehicles utilizing wheels, the lack of ground contact of one or more wheels causes serious problems in drivability and traction. The reason for this phenomenon lies in the structure of the terrain and the dynamics of the vehicle. Known instances of this phenomenon are as follows: [0003] - when a four-wheeled vehicle (e.g. a racing car) is driving on a curve at high speed, one or both wheels on the inside of the curve may lose contact with the ground due to the undulation of the vehicle; [0004] - off-road vehicles (e.g. rally cars) running on uneven ground, where the wheels may lose contact with the ground due to holes that are too deep for the maximum allowable wheel travel; [0005] - Vehicles traveling at high speeds over slopes or obstacles (e.g. racing cars), where the lifting motion resulti...

AI Technical Summary

Problems solved by technology

[0007] In most of these cases, loss of contact with the ground due to reaching the maximum extension of the suspension

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