title: Effects of heated seats in vehicles on thermal comfort during the initial warm-up period.
abstract: Eight subjects participated in a subjective experiment of eight conditions to investigate the effects of heated seats in vehicles on skin temperature, thermal sensation and thermal comfort during the initial warm-up period. The experimental conditions were designed as a combination of air temperature in the test room (5, 10, 15, or 20 °C) and heated seat (on/off). The heated seat was effective for improving thermal comfort during the initial warm-up period when air temperature was lower than 15 °C. Use of heated seats prevented decreases in or increased toe skin temperature. Heated seats also increased foot thermal sensation at 15 and 20 °C. Optimal thermal sensation in contact with the seat was higher when air temperature was lower. Optimal skin temperature in contact with the seat back was higher than that with the seat cushion. Moreover, these optimal skin temperatures were higher when air temperature was lower.
authors.affiliation: Department of Human Science, Faculty of Design, Kyushu University, 4-9-1 Shiobaru, Minami-ku, Fukuoka 815-8540, Japan. h-oi@mail.nissan.co.jp
authors.forename: Hajime
authors.initials: H
authors.lastname: Oi
authors.forename: Koji
authors.initials: K
authors.lastname: Tabata
authors.forename: Yasuhito
authors.initials: Y
authors.lastname: Naka
authors.forename: Akira
authors.initials: A
authors.lastname: Takeda
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Tochihara
mesh_terms: D001336:Automobiles; D003258:Consumer Behavior; D004735:Energy Transfer / Q000502:physiology*; D004780:Environment, Controlled; D006804:Ergonomics; D006361:Heating / Q000379:methods*; D006801:Humans; D007564:Japan; D008297:Male; D012881:Skin Temperature; D013997:Time Factors; D055815:Young Adult