Browse Publications Technical Papers 2020-01-0868

Development of an Air support system for long-distance drive comfort 2020-01-0868

Passenger fatigue during long distance driving is greatly influenced by the comfort performance of the seat and is one of the important performance of the seat. In order to satisfy this performance, it is determined by the appropriate contour of the seat and the appropriate pad with sufficient thickness and the frame supporting the pad and coverings. Recently, however, more parts such as ventilation seats and passenger detection sensors have taken up the pad In addition, The height of the vehicle have been lowered to enhance car styling, and battery for electric vehicle applied to the underbody of the vehicle, reducing the package space of seats in the vehicle. These external factors eventually lead to a reduced pad thickness of the seat cushion and exacerbate the most important cushioning in the seat cushion compartments, creating an uncomfortable cushioning problem when driving long distances. To improve the cushion composition of the seat within a limited package, air bladders are applied to the underside of the cushion pad. In addition, the function to support the buttocks using the air bladders of the lower cushion, similar to lumbar support for the back, was implemented to improve cushion comfort performance. In addition, a system was developed to reduce fatigue through improved blood flow during long-distance driving by implementing stretching mode by independently controlling bladders. This Air support system was designed, developed and tested.


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