Low Vibration
Low Vibration and Low Noise Body1. General
Effective application of vibration damping and noise suppressant materials reduce engine noise and road noise.
2. Sound Absorbing and Vibration Damping Materials
^ Foamed sound insulation materials have been optimally located in the cross sections of the body frame parts.
^ The dash panel inner silencer has been changed from the silencing type to the sound absorption type to ensure quietness. At the same time, a dash panel outer silencer has been provided to reduce the entry of the engine noise into the cabin.
^ Reinforcements have been effectively located inside the dash panel to reduce panel vibration and the entry of road noise.
^ Curved areas have been provided on the floor panel and the beads have been optimized to reduce the entry of road noise.
^ Hood insulator has been provided on the 2GR-FE engine models. It has a dual construction with an air layer between the hood panel and the hood insulator to ensure the proper sound insulating performance.
^ Braces have been optimally located on the cowl top panel to suppress the vibration of the windshield glass and ensure quietness.
^ An insulator and a vibration insulating sheet have been provided forward of the front cowl panel in order to reduce the entry of engine noise from the engine compartment to the cabin.
^ A damping material has been provided in the side door outer panel to reduce the door closure sound.
^ Coating type vibration damping materials have been applied to the surfaces of the floor panel and the dash panel facing the interior (with a thicker coat applied to the forward area of the vehicle) to ensure sound insulation performance.
^ Sound absorption and sound insulation materials have been located throughout the cabin to ensure quietness.
3. Reducing Wind Noise
Wind noise has been reduce through the adoption of the following constructions:
^ The offset between various areas of the body and the glass surface has been reduced.
^ A hood-to-fender seal has been provided along the parting line between the hood panel and the fender panel.
^ A weatherstrip has been provided along the parting line between the front door and the rear door.
^ Airflow routing plates have been provided to both sides of the cowl louver, in order to properly route the airflow.
^ A fender seal has been provided to block the flow of sound towards the door.