Abstract
Switches equipped in the cockpit of automobiles require various tactile feedbacks depending on their purposes and vehicle models . Evaluation of tactile feedback has been conducted using adjectives. However, the relationship between psychological adjectives, such as “comfortable”, and physical characteristics had not been clarified. In this study, we used the evaluation grid method to structure Kansei, aiming to develop a quantitative model for the psychological aspects of the tactile feedback of switches. Specifically, through a 10-subject test, "comfortable" was found to consist of three factors. In addition, the subject tests confirmed that the factors were classified into two clusters and that the factors brought about different influence depending on the clusters.