An ergonomics investigation into human thermal comfort using an automobile seat heated with encapsulated carbonized fabric (ECF)

Article Abstract:

Thermal comfort in an automobile seat heated with encapsulated carbonized fabric (ECF) was investigated, as part of a wider study into thermal comfort for automobile occupants with individual heating control. Comparisons were made between a heated and a non-heated automobile seat. The overall sensations of participants in the heated seat at all temperatures remained higher than slightly cool, and their overall discomfort remained lower than slightly uncomfortable at temperatures down to almost 5 degrees C in the heated seat. No difference in alertness was reported between the control and heated seat.

Heat

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Effects of moderate heat stress on driver vigilance in a moving vehicle

Article Abstract:

Heat stress has a negative effect on driver vigilance in a moving vehicle. The overall signals missed is 50% higher and the response time 22% longer at 27 degrees celsius than at 21 degrees celsius. These effects are more evident at speeds below 60 km/h in city traffic and among individuals below 40 years of age. The individuals respond to the heat stress by raising their level of arousal. The attentional field also alters from the peripheral signals at higher temperatures. Only women commit overt driving errors and this is greater at 27 degrees centigrade.

Influence, Automobile driving, Motor vehicle driving, Temperature

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The influence of heated or cooled seats on the acceptable ambient temperature range

Article Abstract:

An experiment that was carried out to find the acceptability of heat flow to the seat contact surface occurring in a vehicle cabin environment and the acceptable cabin temperature range when heated/cooled seat were operated is discussed. Results show that for drivers and passengers in vehicle cabins providing optimal seat temperature could extend the conventional 80% acceptable range of air temperature by 9.3 degrees Celsius downwards and by 6.4 degrees Celsius upwards.

Science & research, Design and construction, Motor vehicles, Thermal properties, Ergonomic aid, Automotive seating, Report, Automotive seating controls

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