Method of assessing rate of contribution of odor of materials to odor of part assemblies

Abstract

The invention is applicable to the technical field of car odor control and discloses a method of assessing the rate of contribution of odor of materials to odor of part assemblies. The method comprises S1, acquiring the odor substance of every material of the part assemblies as well as concentration of the odor substances; S2, computing the strength of the part assemblies as well as every odor substance of every material of the part assemblies; S3, computing the weight of contribution of every odor substance to the odor of the part assemblies; S4, for every odor substance, computing the rate of contribution of every material to the odor substance; S5, computing the rate of odor contribution of every material to the part assemblies. The method can help quantitatively describe the rate of odor contribution of every material to the part assemblies, precisely describe the odor contribution of every material to the part assemblies, thereby helping determine the correcting order of the materials, indicate the correcting direction of in-car odor and provide guidance for subsequent car part material selection.

Description

technical field [0001] The invention belongs to the field of automobile odor control and provides a method for evaluating the contribution rate of material odor to the odor of a part assembly. Background technique [0002] According to J.D.POWER survey, "unpleasant smell" has become the most serious problem of new car quality in China in 2015-2016. At present, the attention paid by consumers and the media to the smell in the car is also increasing year by year. In order to respond to consumer complaints or complaints, the OEMs have spent a lot of manpower and material resources to rectify the smell of the whole car. [0003] As we all know, the whole vehicle is composed of multiple parts assemblies. To rectify the odor of the whole vehicle, we must first carry out odor rectification on the parts assembly, and each part assembly is composed of multiple materials. To carry out odor rectification, first of all, it is necessary to judge whether the odor of each material is qual...

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Problems solved by technology

The evaluation results of this method not only have a lot to do with personal preferences and work categories, but also have a certain degree of subjectivity; moreover, the material sampling area of ​​this test method is the same size, and although the odor test results of a certain material are high, However, when it is used in a small part, its contribution to the odor of the component assembly is small. This method may mislead the direction of rectification. At the same time, this method can only judge whether the odor of the material is qualified. It is easy to distinguish materials with large grade differences, but it is difficult to distinguish materials with small odor grade differences, and it is impossible to evaluate the odor contribution rate of each material to the component assembly

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