An electric vehicle includes a frame module carrying an electric motor unit and a suspension including, for each wheel, upper and lower oscillating arms connected to a wheel support by swivel joints which define a steering axis of the wheel. The suspension includes two shock absorber devices arranged in horizontal positions and along directions transversal with respect to a vehicle longitudinal direction, which is carried by the frame module centrally on the vehicle. Each shock absorber cylinder is operatively connected to a respective oscillating arm by an oscillating linkage member. Brake discs are arranged at remote positions with respect to the wheels, on two output shafts at two opposite sides of the motor unit, which, in one example, includes two electric motors and two respective gear reducer units from which project the output shafts carrying the brake discs; the latter connected to wheel hubs by respective drive shafts.

The thickness of one of a pair of panels (an inner panel (20) and an outer panel (30)) of each trailing arm (12) is greater than the thickness of the other panel, and a rear wheel support unit (an axle unit (51)) configured to support each rear wheel is coupled to one of the pair of panels (the inner panel (20) and the outer panel (30)).

This torsion beam manufacturing method is a method for manufacturing a torsion beam which is provided with a uniformly shaped closed cross-sectional portion in which a cross section orthogonal to a longitudinal direction is a closed cross section having a substantial V-shape or a substantial U-shape with a pair of ear portions, and a shape changing portion which leads to the uniformly shaped closed cross-sectional portion and in which a shape of the closed cross section changes progressively away from the uniformly shaped closed cross-sectional portion, the torsion beam manufacturing method comprising: thickening to form a pair of thickened portions in at least the shape changing portion by pressurizing each of the pair of ear portions from outside against swelling of the pair of ear portions in a slate where both outer surfaces of each of the pair of ear portions are supported.

A spring device for a motor vehicle wheel suspension that includes a first leaf spring made of fiber-reinforced plastic and a second leaf spring made of fiber-reinforced plastic. The second leaf spring is shorter than the first leaf spring and together with the first leaf spring forms a V-shaped structure, which, in the region of the joined ends of the V-shape, has a first fastening device for the vehicle-body-side support and at the free ends of the V shape has a second fastening device on the first leaf spring for wheel-side support and a third fastening device on the second leaf spring for vehicle-body-side support.

A spring device for a motor vehicle wheel suspension that includes a first leaf spring made of fiber-reinforced plastic and a second leaf spring made of fiber-reinforced plastic. The second leaf spring is shorter than the first leaf spring and together with the first leaf spring forms a V-shaped structure, which, in the region of the joined ends of the V-shape, has a first fastening device for the vehicle-body-side support and at the free ends of the V shape has a second fastening device on the first leaf spring for wheel-side support and a third fastening device on the second leaf spring for vehicle-body-side support.

Torsion beam axles for vehicles are disclosed. An example torsion beam axle disclosed herein includes a first side assembly, the first side assembly including a longitudinal member and a receiver. The example torsion beam axle further including a second side assembly, and a cross strut extending transversely between the first side assembly and the second side assembly.

Disclosed is a forecarriage of a rolling motor vehicle with three or four wheels, comprising: a forecarriage frame; at least a pair of front wheels kinematically connected one to each other and to the forecarriage frame by means of a first kinematic mechanism which enables the front wheels to roll in a synchronous and specular manner, each wheel being connected to said rolling kinematic mechanism by means of a respective axle journal, the latter being mechanically connected to a rotation pin of the wheel in order to support it rotatably around an axis of rotation; means of suspension which provide each axle journal at least one spring suspension movement with respect to said rolling kinematic mechanism; a steering device which kinematically connects the axle journals to each other so as to command the rotation of the axle journals around respective steering axes of each front wheel.

Disclosed is a forecarriage of a rolling motor vehicle with three or four wheels, comprising: a forecarriage frame; at least a pair of front wheels kinematically connected one to each other and to the forecarriage frame by means of a first kinematic mechanism which enables the front wheels to roll in a synchronous and specular manner, each wheel being connected to said rolling kinematic mechanism by means of a respective axle journal, the latter being mechanically connected to a rotation pin of the wheel in order to support it rotatably around an axis of rotation; means of suspension which provide each axle journal at least one spring suspension movement with respect to said rolling kinematic mechanism; a steering device which kinematically connects the axle journals to each other so as to command the rotation of the axle journals around respective steering axes of each front wheel.

A rear suspension member (RSM) transfer assembly for transferring an RSM from a sub-assembly line to a main assembly line includes a first RSM lifter, an RSM buffer, and a second RSM lifter. The first RSM lifter is configured to travel laterally between the sub-assembly line and the main assembly line. The first RSM lifter includes a lifting body and a rotatable arm configured to retrieve the RSM from the sub-assembly line and transport the RSM to the main assembly line. The RSM buffer is configured to receive the RSM from the first RSM lifter and transport the RSM through a plurality of resting positions. The second RSM lifter is configured to receive the RSM from the RSM buffer and raise the RSM into position for installation on a vehicle.

The invention relates to suspension design. The present vehicle suspension comprises a quadrangular frame. Each corner portion of the frame has a wheel block kinematically attached thereto so as to form two pairs of wheelsa front pair and a rear pair. On each side of the frame, longitudinal and transverse coupling cables are fastened for movement therealong inside housings. Each wheel block consists of a body that is simultaneously connected to two coupling cables. Movably mounted on the body are parallel horizontal arms, the first of which is fastened to the body by its middle portion. A knuckle with the hub of a wheel is attached to an end of the first arm and to another end of the second arm, and two coupling cable dampers are attached to the other end of the first arm. The housings of the cables are attached to the body of the corresponding wheel block. The free end of each cable is enclosed in a damper. Mounted on the cable end portions that freely project from the housings in front of a damper are spring stabilizers of the position of the wheel of the wheel block. Each coupling cable is provided with a linear actuator. The result is an increase in the stability and smoothness of movement of a vehicle.