General
Effective application of vibration damping and noise suppressant materials reduces engine, wind and road noise.
Sound Absorbing and Vibration Damping Materials
Foamed urethane sponge and foamed sealing material are applied onto the roof side rail and pillars to reduce wind and road noise.
A large-size dash inner insulator, dash outer insulator, and hood insulator are used to reduce engine and road noises to improve quietness inside cabin.
A material having high sound-shielding property is used for the intermediate film of the laminated glass of the windshield to reduce wind noise.
| *A | Except G.C.C. Countries Models | - | - |
| *1 | Hood Insulator | *2 | Dash Outer Insulator |
| *3 | Dash Inner Insulator | *4 | Engine Under Cover Insulators |
| *5 | Formed Urethane Sponge | *6 | Felt |
The asphalt sheet has been optimized entirely, in terms of material, thickness, and allocation, in order to reduce the droning sound and road noise.
| *a | View from Top Side | - | - |
|
Asphalt Sheet | |
Asphalt Sandwich Sheet Steel |
Reducing Wind Noise
A foam material is optimally allocated inside the body side members, and pillars in order to reduce the wind noise created by air turbulence.
Curved Seal Extrusion (CSE) bifacial molding is used around the windshield glass to minimize the offset between the windshield glass and the roof. This reduces air turbulence and wind noise (A - A cross section).
The offset of the front pillars and the windshield grass has been optimized to minimize air turbulence, thereby reducing the wind noise (B - B cross section).
Through a modification of the cowl louver shape, the course of airflow across the hood has been directed upward, and this prevents wind from interfering with the wipers. Therefore, air turbulence has been minimized, reducing the wind noise (C - C cross section).
| *1 | Windshield Glass | *2 | Roof Panel |
| *3 | CSE Bifacial Molding | *4 | Front Pillar |
| *5 | Hood Panel | *6 | Cowl Louver |
| *7 | Front Wiper | - | - |
| *a | A - A Cross Section | *b | B - B Cross Section |
| *c | C - C Cross Section | *d | Offset |