Abstract
Keywords: front axle, 3D modeling, wheel gauge variation, wheel angle variation, pivot transverse angle variation.
Fractional axles with four non-equal rods mechanisms are widely utilised on cars. A factor for assessing the kinematics of these axles is the variation of the wheel-gauge and of the transverse angle of the pivot. Modifying of the kinematics is produced by changing positions of the joints and the length of the rods composing the mechanism, but these parameters must be related with the local and general layout of the car. In the paper is started form the existing car axle, which is modelled in 3D with the aid of the Autodesk Inventor program. Model is such designed that it can be modified the lengths of the rods, underlining for each variant modification of the wheel-gauge and of the transverse pivot angle when wheel is moving up and down.