A method of determining the shape of a side airbag
A technology for airbags and airbags, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of high development cost and long development cycle.
Active Publication Date: 2016-10-05
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0004] The purpose of the embodiments of the present invention is to solve the problems of high development cost and long development period in the existing methods, and provide an efficient method for determining the shape of the side airbag
Method used
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Embodiment Construction
[0051]Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0052] Such as figure 1 Shown, the method for determining the shape of side airbag of the present invention comprises the steps:
[0053] Step S1: Select the optimization point, and use the position coordinates of all optimization points relative to the optimization coordinate system as the airbag shape variable used to determine the shape of the side airbag, because the side airbag is composed of two identical single-piece airbags with left and right arrangements The fabric is stitched and synthesized. Therefore, to determine the shape ...
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The invention discloses a method for determining the shape of a side safety air bag. The method comprises the steps that an optimization point is selected and position coordinates of the optimization point serve as air bag shape variables; an approximate area model and an approximate damage model which reflect a function relationship among the air bag shape variables, the air bag area and dummy damage data are obtained; the air bag shape variables are optimized and sampled; the optimization air bag shape variables obtained through optimization and sampling are input into the approximate area model and the approximate damage model, so that the approximate air bag area and approximate dummy damage data are obtained; the preset number of the optimization air bag shape variables enabling the approximate air bag area to be the minimum are selected from the optimization air bag shape variables enabling the approximate dummy damage data to meet the damage index constraint condition so as to serve as optimal solutions; the air bag area and the dummy damage data corresponding to the optimal solutions are obtained; the optimal solutions enabling the air bag area to be the minimum are selected from the optimal solutions enabling the dummy damage data to meet the damage index constraint condition so as to serve as target solutions. According to the method, the calculated amount can be reduced and accurate optimization results can be obtained.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a method for determining the shape of a side airbag based on geometric parameterization. Background technique [0002] With the rapid development of the automobile industry, people pay more and more attention to the passive safety of automobiles. Safety, energy saving and environmental protection have also become the three major design themes in the field of automotive engineering today. For the side collision of the car, the side airbag is undoubtedly the most important safety auxiliary device to protect the occupant and avoid the secondary collision between the occupant and the interior parts of the car body, and its role in side occupant protection is recognized by the automotive industry , Has become the basic safety configuration of many models, especially the chest and abdomen side airbags can effectively protect the occupant's vulnerable chest and abdomen in side coll...
Claims
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IPC IPC(8): G06F17/50
Inventor 李铁柱陶其铭张雷袁海龙卢元燕
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD