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Technical Paper

Sensory Evaluation of Commercial Truck Interiors

1999-03-01
1999-01-1267
Vehicle interior harmony is related to human factors but it deals with human emotional attachment to the product. Kansei, or sensory engineering provides an effective approach to address harmony issues. This paper reports a preliminary investigation of human sensory evaluation of commercial truck interiors, especially the door interiors. To investigate the end users' needs and preference, a questionnaire survey was administered to twenty-six commercial truck drivers. Responses on usability, styling, harmony, and ergonomics issues of each driver's own truck were recorded. Furthermore, a set of 12 semantic differential scales, together with a preference ranking scale, was served to evaluate six truck door interiors. Results show that commercial truck drivers are more concerned with functionality and usability than styling and visual harmony.
Technical Paper

A Sensory Approach to Develop Product Sound Quality Criterion

1999-05-17
1999-01-1818
Product sound quality is becoming increasingly critical in recent years. To help improve customer satisfaction and product quality, Delphi Automotive Systems has taken a proactive approach to address sound quality issues. The first step is to identify customers' expectations. This paper describes a sensory approach to develop sound quality criterion for a power product. To identify critical sound quality characteristics, a large number of sound samples were recorded. Jury (focus group) evaluation was conducted to identify the acceptance level and preference of each sample. Then, critical objective measures, and the criterion level of each measure, were identified via correlation analysis with subjective responses. This article presents a practitioner's point of view on how to apply sensory engineering method to engineering practice.
Technical Paper

Kansei Engineering Application on Commercial Truck Interior Design Harmony

2000-12-04
2000-01-3412
Vehicle interior harmony has drawn increasing attention from customers in recent years. Kansei Engineering is an effective approach to quantify the relationship between design parameters and customer perceptions of the product. This article is a continuation of our previous study on commercial truck interior harmony. Herein, we investigated the customer perception of the visual aspects of commercial truck door interior design using classification methods. This article describes how these visual impressions are related to design elements using quantification theory, a commonly used method in Kansei Engineering. The results reveal that trim material, shape, color, window shape, and map pocket are design elements that strongly affect the perception of elegance and preferences of truck drivers. The results also showed a significant difference between the perception of the truck drivers and design engineers.
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