The Aural Discomfort Inside the Car Analysis and Control in the Instant the Door Closes

With the improvement of the vehicle leakage performance, the aural discomfort phenomenon appeared during closing door. The studies for closing door quality are more, but the studies for aural discomfort are very little. In this paper, through a large number of objective test and subjective evaluation of the vehicles, and it is systematically studied the relationship between leakage under positive pressure and aural discomfort during closing door. And it theoretically deduces to the minimum closing door speed, the Y-direction projection area, vehicle air leakage, cross-sectional area of the vehicle, decompression air vent ventilation area relationship with the aural pressure fluctuation inside the car, and the objective test data supports completely the validity of the deduction. In this paper, it puts forward originally the human aural comfort threshold definition of objective evaluation and it has directive significance to design and develop aural comfort in the instant the door closes.