| Along with the development of manufacturing industry and market in China, the importance of industry design has been gradually highlighted. Yet the product definition session in the entire industry design has not been given proper attention. Generally, the design unit as well as the designers only focuses on the design assignment and confirms the design points according to the requirements from the enterprises. Take the buses in city as an example. In China, the manufacturers of bus did not precisely have the product definition session before the buses have been put in to mass production. Designers resorted to experience and general technology to produce the products. As a result, the pattern that designers develop products without using the research and development methods in the manufacturing industry is gradually losing the competitiveness.Desiring to design originally, it is extraordinarily significant to establish a suit of methodology on the product definition adapted to practical design task.The bus development requires the methodology of product definition on bus, which shall be regarded as the evidence of bus design. In accordance with the development prospects of the electric bus, the significance of the product definition on electric bus has been increasingly prominent.The basis of product definition in industrial design is determined by obtaining the requirement of the users, which shall be transformed into the design elements. Dominated by the theory of Kansei Engineering, assisted by other methods, based on practical design, the essay launched the research on the methodology of product definition of pure electric bus. Integrated with various design methods, the essay promoted the design commitment of pure electric bus, and launched detailed design on the seats of special groups regarded as the deepening part in the design. The essay adopted computer system of Kansei Engineering of other methods. Relying on the assistance of the computer, users’Kansei image was transformed into design details. Kansei Engineering was adopted to research the people. The bus users and industrial design were cut into the design of electric bus, to achieve the effective conversion and combination of design features between Kansei and the matters. The product definition of the electric bus should fetch the requirement of passengers, drivers and maintenance personnel by the method. Then, the requirement was transformed into the composing content of the electric bus effectively. Finally the essay summarized a suit of practical methodology of product definition of pure electric bus in a relative practical and simple way, adapted to majority of the product design. The methodology of product definition promoted in the essay prior than the past design methods is determined by the supplementation and complementation of the past design process, to provide the evidence for the design of the electric bus. The methodology and process adopted in the essay shall play the demonstration role in electric bus design, to improve the possibility of original design. |