Abstract
The whole-body comfort sensation was moderately to highly correlated with local body part comfort sensation in both sitting and driving, in order to understand what exact relationship exists between them, the seating comfort evaluations under the stimulus of four body parts (i.e. backs, waist, hips and thighs) were carried out for 15 subjects separately, subjective ratings on both partial-body and whole-body comfort are derived under different conditions. Impact factor (IF) of the partial-body comfort to whole-body comfort is calculated by the linear regression method, and the main variables are obtained by the stepwise regression algorithm. The most significant local body part in influencing whole body comfort is found at the region of hips, followed by backs, waist and hips. With impact factor analysis on partial body comfort, the results show that the local comfort feeling of waist is most potential to be influenced by other body parts, while the comfort sensitivity of thighs is the lowest.
Highlights
Seating comfort is connected closely with driving experience in a vehicle, which contributes a lot to making judgment for customers in the vehicle market
Questionnaire survey is the usual method for subjective comfort rating, and various questionnaires can be taken as alternatives [11, 12]
For whole-body comfort, a score between two adjacent ratings will be available if the discomfort feeling is not clear, only to avoid a vogue comfort expression
Summary
Seating comfort is connected closely with driving experience in a vehicle, which contributes a lot to making judgment for customers in the vehicle market. Comfort is affected by many factors such as physiology, psychology, and environment [1, 2]. General seating comfort is influenced by both static and dynamic factors. Static characteristics sometimes play more important roles in the perception of general comfort even in dynamic conditions [4]. Some seat characteristics, such as foam harshness and thickness [5], were regarded as significant influencing factors to static comfort, less stiffness of the seat material is thought to have better sitting comfort [6]
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