Abstract
Automobile development is a complex system engineering with multi-objective coupling. Setting an accurate mass target to ensure the vehicle performance is the chief work of the vehicle mass development. This article analyzes key characteristic parameters which relate to vehicle mass from the aspect of customer needs and mapping relation between key characteristic parameters and vehicle mass through statistical analysis based on the vehicle mass data of benchmark cars. To meet the requirement of different development indexes and to ensure the vehicle performance, the impact of each characteristic parameter on the mass target is determined through analytic hierarchy process (AHP) and quality function deployment (QFD) methods. Finally, this article develops mass target setting model and puts forward a new method and application steps of setting vehicle mass target. Through practical usage, the new method can ensure the vehicle performance, and increase the accuracy and reliability of mass target. Besides, the method makes the vehicle mass development more knowledgeable and agile.
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