The emerging trends in commercial vehicle technology have increased the necessity for critical attribute engineering refinements. Drivability is emerging as one of the most significant attributes in the automotive sector. The degree of smoothness in a vehicle's response to the driver's input is termed as drivability. This attribute has to be rigorously refined in order to achieve brand specific vehicle characteristics, which will ensure a thorough product differentiation. In order to calibrate for a positive drivability feel, a methodology for evaluation of drivability is a prerequisite.
The scope of this paper is aimed at describing the methodology for subjective and objective evaluation of drivability attributes in commercial vehicles. Drivability is a highly subjectively perceived attribute, therefore a subjective assessment technique to assess drivability attributes and sub-attributes are essential. Further, to quantify these attributes an objective measurement methodology is proposed. These evaluation methods can be used to refine the vehicle for outstanding drivability.
The first impression of the driver about the vehicle depends primarily on how the vehicle is going to respond to his/ her inputs. A swift and appropriate response from the vehicle creates a good impression and is an essential prerequisite for driving pleasure and driving experience. Refining such attributes becomes an important aspect in terms of purchase criteria [1].