Abstract: A new method of fuzzy comprehensive evaluation on the vehicle interior sound quality subjective evaluation was proposed based on the semantic differential to overcome the shortcoming of the traditional semantic differential method which is inefficient to rank the results of overall perception of sound samples in sound quality subjective evaluation. The sound characteristic evaluation indexes of vehicle interior sound quality subjective evaluation were established. The structure and the hierarchy of the fuzzy comprehensive evaluation were defined based on the evaluation index system of the semantic differential method. The weights of the evaluation indexes were obtained according to the importance of sound characteristics in different subjective evaluation tests. Taking 15 sound samples acquired from a passenger car as evaluation objects, and the sound "luxury" as the evaluation index, subjective evaluation comparison tests between the paired comparison method and the fuzzy comprehensive evaluation method were performed, and the evaluation results were ranked. The results showed that the proposed subjective fuzzy comprehensive evaluation method can accurately provide the membership of evaluation ranking of sound sample perception characteristic and the ranks of the sound sample overall subjective perception under the condition of keeping the same evaluation workload.

Key words: vehicle engineering, vehicle interior noise, sound quality, subjective evaluation, semantic defferential method, fuzzy comprehensive evaluation