An automobile undercarriage component has at least three elongated arms, each including a web and a rib having an inner wall surface. One of the three elongated arms is a first arm having a first one of the ribs and at least one of the three elongated arms is a second arm having a second one of the ribs. For each of the second ones of the ribs, the leading end of the respective second one of the ribs has a width in the direction parallel to the plane of the web and transverse to the direction of elongation of the arm which is narrower than the width of a leading end of the first one of the ribs, as an inner wall surface is disposed closer to an opposing outer wall surface in the respective second one of the ribs as compared to the first one of the ribs.

An energy conversion assembly including an input shaft coupled to a first annular gear through a first direction limiting device configured to allow rotation of the first annular gear in a first direction and substantially inhibit rotation of the first annular gear in a second direction. The input shaft may be coupled to a second annular gear through a second direction limiting device configured to allow rotation of the second annular gear in the second direction and substantially inhibit rotation of the second annular gear in the first direction. The assembly may include a first transmitting gear engaged with the first annular gear, a second transmitting gear engaged with the second annular gear, a conversion gear operatively coupled to the second transmitting gear, and a transmitting shaft coupled to the first transmitting gear and the conversion gear.

An arrangement for attaching a control arm in a vehicle comprising a first attachment bracket, a first fastening means, a first bushing, and a control arm. The first bushing is arranged in an opening of the control arm and the first fastening means is passing through both the first attachment portion and the first bushing. The first attachment bracket comprises a slit arranged transversal to the travel direction of the vehicle and the slit is arranged in a front surface of the first attachment bracket, wherein the first attachment bracket is adapted to release the first fastening means of said control arm when a certain force is exceeded during an offset or small offset impact.

An automobile undercarriage component is provided with a web and a rib. The rib is configured so as to comprise a first section that is a section having the widest width and a second section that has a narrower width than the first section, and the second section having a narrower rib width than the first section as a result of an inner wall surface of the second section that is continuously formed from the web being provided so as to be adjacent to a facing outer surface wall.

A vehicle suspension structure includes a suspension arm and a ball joint. The suspension arm is connected between a suspension member and a vehicle-widthwise outer side end connected to a vehicle wheel. The ball joint connects the suspension arm and the vehicle wheel. When the vehicle receives an impact in the longitudinal direction, a socket of the ball joint pivots relative to a ball as the suspension arm deforms, and a flange portion on an open side of the socket interferes with a stud shaft of the ball joint. The interference causes the flange portion to deform and the ball to come out of the socket to undo the link with the vehicle wheel by the ball joint. Upon becoming unlinked, the vehicle wheel moves toward the vehicle-widthwise outer side and interference with the rear vehicle body is suppressed to limit deformation of the vehicle body.

A suspension arm adapted for use in a suspension system of an automotive vehicle including an arm member, a first mounting portion formed at a first end of the arm member and a second mounting portion formed at a second end of the arm member spaced in a first direction relative to the first mounting portion. The first mounting portion including a bushing collar equipped with a frangible portion comprising at least one stress riser, and the longitudinal axis of the collar in the first direction. By adding a frangible feature to the bushing collar of the suspension arm, the breakage mode and breakage timing can be optimized to ensure a tire-and-wheel assembly consistently contacts surrounding parts at the desired time and locations in a predictable sequence and manner during a vehicle impact event.

A void bushing for a vehicle suspension is configured to have protrusion parts formed to protrude outwards on a bulge part of an inner pipe. The protrusion parts are located to be disposed in oblique line directions between void portions of an elastic body that is filled between the inner pipe and an outer pipe. In the void bushing, ride comfort characteristics and durability characteristics of a vehicle may be maintained, as they are, under favorable conditions by the void portions. Further the handling response characteristics of the vehicle may be advantageously improved by promoting a rigidity increase through the protrusion parts.

A suspension arm adapted for use in a suspension system of an automotive vehicle including an arm member, a first mounting portion formed at a first end of the arm member and a second mounting portion formed at a second end of the arm member spaced in a first direction relative to the first mounting portion. The first mounting portion including a bushing collar equipped with a frangible portion comprising at least one stress riser, and the longitudinal axis of the collar in the first direction. By adding a frangible feature to the bushing collar of the suspension arm, the breakage mode and breakage timing can be optimized to ensure a tire-and-wheel assembly consistently contacts surrounding parts at the desired time and locations in a predictable sequence and manner during a vehicle impact event.

A vehicle suspension structure includes a suspension arm and a ball joint. The suspension arm is connected between a suspension member and a vehicle-widthwise outer side end connected to a vehicle wheel. The ball joint connects the suspension arm and the vehicle wheel. When the vehicle receives an impact in the longitudinal direction, a socket of the ball joint pivots relative to a ball as the suspension arm deforms, and a flange portion on an open side of the socket interferes with a stud shaft of the ball joint. The interference causes the flange portion to deform and the ball to come out of the socket to undo the link with the vehicle wheel by the ball joint. Upon becoming unlinked, the vehicle wheel moves toward the vehicle-widthwise outer side and interference with the rear vehicle body is suppressed to limit deformation of the vehicle body.