A motor vehicle independent rear-wheel suspension system including a left-hand and a right-hand transverse link, each articulated at an inner end on a chassis of the motor vehicle and fixedly connected at an outer end to a wheel carrier. The suspension system having a left-hand and a right-hand trailing arm unit. Each trailing arm unit articulated a front end on the chassis of the motor vehicle and at a rear end on a wheel carrier. Open installation space is formed between the trailing arm units and the transverse links for at least a partial accommodation of an electrical drive train.

A motor vehicle independent rear-wheel suspension system including a left-hand and a right-hand transverse link, each articulated at an inner end on a chassis of the motor vehicle and fixedly connected at an outer end to a wheel carrier. The suspension system having a left-hand and a right-hand trailing arm unit. Each trailing arm unit articulated a front end on the chassis of the motor vehicle and at a rear end on a wheel carrier. Open installation space is formed between the trailing arm units and the transverse links for at least a partial accommodation of an electrical drive train.

According to one embodiment of the present disclosure, a vehicle knuckle used in a steering device of a vehicle is provided. The vehicle knuckle according to one embodiment of the present disclosure may comprise a knuckle body constituting a basic body of the vehicle knuckle; and one or more flanges formed on one side of the knuckle body and configured to be used to connect the knuckle to other components of the vehicle. According to one embodiment of the present disclosure, all or a portion of the knuckle body may comprise a closed-box-section structure in which a hollow space portion is defined, and the closed-box-section structure may be configured such that the knuckle body integrally encloses around the hollow space portion.

A torsion beam of a coupled torsion beam axle may include an external beam having a first cross-section in which an external protrusion of a middle end portion of the external beam is formed to protrude toward upward in a longitudinal direction of the external beam, and external skirt portions are vertically extended along the longitudinal direction at both end portions of the external protrusion; and an internal beam having a second cross-section in which an internal protrusion of a middle end portion in the internal beam is inserted into the external beam to face the external protrusion of the external beam, and internal skirt portions are extended in a vertical direction at both end portions of the internal protrusion, and each external surface of the internal skirt portions and each internal surface of the external skirt portions are surface-bonded in a mutually matched state. A gap is formed between an external surface of the internal protrusion and an internal surface of the external protrusion to form a closed cross-section.

A wheeled work vehicle (1) comprises a forward chassis part (4) and a rearward chassis part (5) pivotally connected about a substantially vertically extending primary pivot axis (7) for steering thereof. A pair of forward ground engaging wheels (29) are carried on a forward suspension unit (32), and a pair of rearward ground engaging wheels (30) are carried on a rearward suspension unit (33). The forward suspension unit (32) is pivotally connected to the forward chassis part (4) by a pair of main forward transverse pivot shafts (63) pivotally coupled to the forward chassis part (4) by corresponding main forward pivot mountings (65). The main forward transverse pivot shafts (63) defines a main forward transverse pivot axis (59) about which the forward suspension unit (32) is pivotal relative to the forward chassis part (4). The forward suspension unit (32) comprises a pair of spaced apart trailing arms (35) which are joined by a torsion shaft (68) of tubular steel, which is rigidly connected to the trailing arms (35). The torsion shaft (68) defines a torsional axis (70), and permits limited upward and downward pivotal type torsional deflection of the trailing arms (35) relative to each other. The rearward suspension unit (33) is substantially similar to the forward suspension unit (32) and is coupled to the rearward chassis part (5) about a pair of main rearward transverse pivot shafts (87) in a similar manner as the forward suspension unit (32) is coupled to the forward chassis part (4).

The disclosure relates to a method for producing an axle component for a motor vehicle, in which at least two metallic axle parts are joined integrally to one another. The axle component is a twist beam axle, in which lateral trailing arms are connected to each other via a transverse profile. In order to establish a target geometry of the axle component, the heat induced by a welding operation is utilized. The welding operation can be a specifically positioned weld, an additional weld or a blind weld. The heat of welding is utilized in order to achieve a compensation deformation and to compensate for distortion states and/or to align the axle component.

A coupled torsion beam axle apparatus of a vehicle includes: a left torsion bar and a right torsion bar arranged in an internal space of the torsion beam so to be separated from each other in a horizontal direction of a torsion beam. Torsion stiffness of the torsion beam is tuned by replacing the left torsion bar and the right torsion bar, and particularly, warping stiffness is tuned by changing a position where the left torsion bar is coupled to the torsion beam and a position where the right torsion bar is coupled to the torsion beam.

A forecarriage (8) of a rolling motor vehicle (4), comprising a forecarriage frame (16), a pair of front wheels kinematically connected to each other and to the forecarriage frame (16) by means of a first kinematic mechanism (20), each wheel being connected to said first kinematic mechanism (20) by means of a respective axle journal (60), a roll block system (100) comprising a second kinematic mechanism (110) that directly connects the two wheels to one another at the respective axle journals (60) between two connection points and can assume a free configuration in which the second kinematic mechanism (110) can passively follow the movements of the two wheels with respect to each other without interfering with them and a blocked configuration in which the second kinematic mechanism (110) can set the distance between said two points thus preventing rolling movements between the two wheels while allowing pitching and steering movements.

A forecarriage (8) of a rolling motor vehicle (4), comprising a forecarriage frame (16), a pair of front wheels kinematically connected to each other and to the forecarriage frame (16) by means of a first kinematic mechanism (20), each wheel being connected to said first kinematic mechanism (20) by means of a respective axle journal (60), a roll block system (100) comprising a second kinematic mechanism (110) that directly connects the two wheels to one another at the respective axle journals (60) between two connection points and can assume a free configuration in which the second kinematic mechanism (110) can passively follow the movements of the two wheels with respect to each other without interfering with them and a blocked configuration in which the second kinematic mechanism (110) can set the distance between said two points thus preventing rolling movements between the two wheels while allowing pitching and steering movements.

An automotive component manufacturing method includes a molding process of pressing a portion of a hollow tube formed from a metal material, or a composite material including a metal and a resin, so as to deform the portion of the hollow tube, from a tube outer side toward a tube inner side, to beyond an axial center of the hollow tube, and mold the portion of the hollow tube into a deformed section deformed with a concave profile; and a deformation process of deforming a location having a high level of residual stress in a closed cross-section configured by the deformed section so as to deform the location out-of-plane.