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.

Provided is a steering function-equipped hub unit for steering a rear wheel configured to be supported by a suspension device including a torsion beam and a pair of trailing arms. The hub unit includes: a turning shaft-equipped hub bearing including a turning shaft extending in a vertical direction and configured to rotatably support the rear wheel; a unit support member supporting the turning shaft-equipped hub bearing such that the turning shaft-equipped hub bearing is rotatable about a turning axis; and a steering actuator separate from the unit support member and configured to rotationally drive the turning shaft-equipped hub bearing. The steering actuator is attached to the suspension device at a position higher than a lowermost surface of the torsion beam and between a rotation support part of the suspension device and the turning shaft-equipped hub bearing.

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.

A die 20 used to form a metal tube into a tubular twist beam part 22 having a U-shaped torsion section 66 is provided. The die 20 includes a punch 44 and side form blocks 34 which simultaneously engage a metal tube and form the metal tube into the tubular twist beam part 22. The form blocks 34 have a curved profile which depends on the desired profile of the tubular twist beam part 22 to be formed. The die 20 includes horizontal spacer blocks 38 and vertical spacer blocks 32 restricting movement of the punch 44 and form blocks 34. The spacer blocks 32, 38 can have various different dimensions and can be easily removed and replaced to adjust the closing position of the die 20 and thus form multiple tubular twist beam parts 22 each having a different dimension and different roll rate.

The twist axle assembly includes a pair of trailing arms that are spaced apart from one another in a first direction. The twist axle assembly also includes a twist beam, which has an open shaped cross-sectional shape, that extends in the first direction between a pair of opposing end portions. The open cross-sectional shape of the twist beam includes a base and a pair of side walls. The end portions of the twist beam are fixedly attached with the trailing arms. A pair of beam reinforcements are fixedly attached with the trailing arms and with the base of the twist beam. The beam reinforcements are fixedly attached with the twist beam through at least one of fasteners, adhesives, resistance spot welding, cold metal transfer welding, laser welding, and brazing.

A torsion beam type of rear suspension comprising a pair of right-and-left trailing arms and a torsion beam. A floor under cover for airflow straightening is attached to a portion of a vehicle body in front of the rear suspension so as to cover a vehicle-body lower face. A cover-support bracket is laid between a rear portion of a side sill and an inward side, in a vehicle width direction, of an arm pivot of the trail arm. A portion of the floor under cover which is positioned in the vicinity of its rear end is engaged with the cover-support bracket such that a rear end portion of the floor under cover is extended from an inward-side edge of a front portion of a rear wheel house to an inside of the rear wheel house.

A cap is provided for covering the threaded end of a removable spindle, having a cover with thread engaging tabs extending from a reservoir basin. The tabs include surface projections for retaining the cap to the spindle threads. The tabs are formed to fit within available slots of a slotted hex nut connected to the spindle. The cap includes a separately formed skirt or guard to make flexible surface contact with the torsion arm or spindle supporting structure. The skirt can include a sacrificial anode region to provide cathodic protection for the spindle threads and spindle retention nut. The skirt is removable from the cap so that the cap can be reused with a new skirt. The cap is formed to be used with existing spindle assemblies and to be reusable.

A shock absorber support device for supporting a shock absorber coupled to a rear suspension member (RSM), the shock absorber support device including an elongated body extending between a first end and a second end. A shock absorber hooking portion is coupled to the first end, where the shock absorber hooking portion is configured to releasably engage a cylinder of a shock absorber. An RSM frame hooking portion is coupled to the second end, where the RSM frame hooking portion is configured to releasably engage a portion of an RSM frame assembly. Engagement of both the shock absorber and the portion of an RSM frame assembly prevents the shock absorber from moving.

An axle for a vehicle, wherein the axle includes a transverse axle portion having a longitudinal end. The axle including a first axle portion connecting the transverse portion to a chassis of the vehicle and a second axle portion connecting the transverse portion to a wheel carrier for supporting a vehicle wheel. A vibration damper is arranged in a receiver in one of the axle portions.

A bush may include: a second inner pipe forming a central protrusion in a central section of the second inner pipe; and an outer pipe forming a third protrusion at a first inner side and a fourth protrusion at a second inner side. In particular, the third and fourth protrusions are arranged outside of the central protrusion.