Subframe for a motor vehicle and method for producing a subframe
A technology for motor vehicles and axle frames, which is applied in the field of axle frames for motor vehicles and for the manufacture of axle frames, which can solve the problems of unstable subsequent loss, vehicle out of control, plastic breakage, etc., and achieve the effect of reducing weight
Active Publication Date: 2016-03-09
BENTELER AUTOMOBILTECHNIK GMBH +1
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Problems solved by technology
[0004] With respect to this low weight advantage, such pedestals are relatively expensive based on the materials used
On the technical side, the rigidity of the attractively priced plastics does not meet the dynamic driving requirements
Also, some plastics tend to snap when subjected to load or overload
The axle frame rigidity is thus lost and there is a risk of subsequent losses through the structure becoming unstable or loss of control of the vehicle during an accident
Method used
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Embodiment Construction
[0066] figure 1 An embodiment of a pillowcase 1 according to the invention is shown in assembled configuration. The pedestal 1 includes an upper shell 2 , a lower shell 3 and a rib structure 9 for reinforcing the upper shell 2 . exist figure 1 The rib structure 9 can only be seen through the opening 8 since the rib structure is otherwise located entirely in the closed housing of the spindle frame 1 . exist Figure 4 The rib structure 9 is shown more clearly in . The upper shell 2 is made of aluminum alloy in this embodiment. The lower shell 3 is made of fiber-reinforced plastic, the fiber reinforcement here comprising not only long fibers but also short fibers. The rib structure 9 is produced in one piece from the lower shell 3 and is made of short fiber reinforced plastic. The fibers here have a length of at most ten centimeters.
[0067] In addition, two connection platforms 4 and 5 are installed on the upper case 2 . The connecting stations 4, 5 are used for connect...
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Abstract
The invention relates to a subframe (1) for a motor vehicle, comprising an upper shell (2), a lower shell (3) made from a fiber-reinforced plastic and a rib structure (9) for stiffening the upper shell (2), wherein the upper shell (2) is composed of a metallic material and the rib structure is composed of a plastic reinforced with short fibers and is formed integrally from the lower shell (3). The invention furthermore relates to a method for producing a subframe, wherein the lower shell together with the rib structure (9) connected integrally therewith is formed from a stack of plies of a fiber-reinforced thermoplastic and joined to an upper shell (2) made from a metallic material.
Description
technical field [0001] The invention relates to a axle frame for a motor vehicle, comprising an upper shell, a lower shell made of fiber-reinforced plastic, and a rib structure for reinforcing the upper shell. In addition, the invention relates to a manufacturing method for the creel. Background technique [0002] In modern vehicle construction, the primary aim is to design the vehicle body as light as possible in order to significantly reduce CO 2 emissions and impact on the environment. For this reason, reinforced, in particular fibre-reinforced plastic materials as well as high-strength and ultra-high-strength structural steel materials and aluminum materials are used in vehicle construction. [0003] Lightweight construction is also sought in the area of the chassis, wherein the weight reduction is achieved in particular in the area of the steel components by using suitable materials and by means of sheet metal shell construction, wall reductions and the like. In ...
Claims
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IPC IPC(8): B29C69/00B29C43/02B62D21/12B62D29/04
CPCB62D21/11B62D29/005B29D99/0014B29C70/46B29C70/12B29C43/16B29K2023/12B29K2077/00B29K2105/0809B29K2105/12B29K2105/256B29L2031/3002B62D25/20
Inventor J·格雷费A·弗兰茨克M·克尔纳A·米拉奥O·赛布特T·特勒斯特E·莫里茨尔C·布德S·珀勒
Owner BENTELER AUTOMOBILTECHNIK GMBH