汽車展業蓬勃競爭與發展之下，車燈燈光除作為照明警示的機能性功能，車燈更是作為車體設計之靈魂，能體現出一台車的設計風格與其個性。在此之前，尤其研究主題以汽車車身造型意象為多，針對車輛造型上之主觀感受深入探討與研究，並將車輛視為產品進行感性語彙評估研究。本研究從整體車燈發展趨勢角度切入，探討車燈品牌特徵，並依照其特徵進行實例設計，其過程為往後之車燈造型設計師做為車燈設計之依循。
車燈設計建立在維持家族設計特徵之一貫性下，以發展新穎之設計元素與展現和其他競爭者最大之識別度。本研究以德國車廠奧迪作為車燈發展之先驅緣由，擇定為深入討論車燈品牌特徵之對象，且因尾燈行車燈本身設計變化性多、受限制少，且為用路人頻繁關注之燈具對象為由，列為此研究之目標，使本研究具代表性及未來性。
本研究首先進行奧迪汽車後車燈之案例分析，選定奧迪該品牌之尾燈作為研究主題。從LED作為元件發光材料之年份開始，描繪2003~2021年32款奧迪後車燈之行車燈、方向燈、煞車燈、霧燈、煞車燈輪廓並建立檔案，應用型態分析法整理歸納其造型設計元素，將尾燈行車燈造型分為四個類項目，分別為:主要輪廓、鋸齒與否、圍繞與否、比例。應用其多維型態矩陣，產生24種組合，對於熟知奧迪車燈發展之使用者進行問卷調查，將其結果應用數量化I類分析法，探討其類項目中具代表性之奧迪車燈設計特徵以及其他次要元素。最後依照問卷結論分析之內容，進行車燈實際案例實作，並委請車廠之造型設計師作為評估專家對於該車燈設計給予指導，以實例進行特徵判斷、形容詞語彙及喜好度調查。
結果發現主要影響奧迪尾燈品牌型態辨別之特徵因子，重要程度依序為:比例、鋸齒狀、主要輪廓(L型或U型)，驗證了本研究提出之型態項目與奧迪品牌識別特徵相符性。最能代表奧迪尾燈行車燈之設計組合為U型、有鋸齒、有圍繞、扁矩形狀，反之，與其品牌識別最不相符之型態組合為L型、無鋸齒、無圍繞、貫穿。

Under the booming competition and development of the automobile exhibition industry, in addition to the functional function of lighting warning, the lights are the soul of the car design, which can reflect the design style and individuality of a car. In the past, especially, the research topic has been focused on the imagery of car body shape, and the subjective feeling of vehicle shape has been studied and researched in-depth, and vehicles have been evaluated as products with Kansei vocabulary. In this study, we explore the features of car lighting from the perspective of the overall development trend of car lights and do case study designs according to the features, which will be used as criteria for future car light designers. The lamp design is based on maintaining the consistency of the family design characteristics, to develop new design elements and show the greatest recognition with other competitors. This study takes Audi, a German car manufacturer, as the pioneer in the development of car lights, and selects it as the target of in-depth discussion on the features of car light brands.
Firstly, we conducted a case study of Audi rear lights, starting from the year when LED was used as the light-emitting material. The profiles of the running lights, directional lights, brake lights, fog lights, and brake lights of 32 models of Audi rear lights from 2003 to 2021 were depicted. The design features of the rear light were summarized by applying Morphological analysis method, and were divided into four categories: Main profile, Serrated or not, Surrounded or not, and Proportion. The multi-dimensional morphological matrix was used to generate 24 combinations. A questionnaire survey was conducted among participants who were familiar with the development of Audi, and the results were analyzed by applying the Quantification theory type I analysis to explore the representative Audi light design features and other elements in the categories. Finally, according to the analysis of the questionnaire, the case study of the rear light design was conducted, and the styling designer of the car manufacturer was appointed as the evaluation expert to give guidance on the design of the lights, and the feature judgment, adjective vocabulary and preference survey were conducted.
The results showed that the main factors affecting the brand recognition of Audi rear lights were, in order of importance, Proportion, Serrated, and Main profile (L-shaped or U-shaped), which verified the consistency of the proposed model items with Audi brand recognition features. The design combinations that best represent the Audi rear running lights are U-shaped, Serrated, Surrounded, and flat rectangular shape; conversely, the combinations that are least consistent with the Audi brand identity are L-shaped, Non-serrated, Non-surrounded, and through tail lights.

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