| 摘要 |
PURPOSE:To aim at enhancing the acoustic effect, by providing an air bag whose inside pressure is regulated by a pressure regulating means, in an interior member. CONSTITUTION:A solenoid check valve A, a solenoid valve B and a pump D are controlled by a control device E incorporating therein a central processing unit CPU. The control device E is connected thereto with an air bag internal pressure sensor 7c for detecting the air pressure inside of an air bag 5, a surge tank internal pressure sensor 7d for detecting the pressure in a surge tank C, an audio switch (e) by which the user manually sets the reverberation characteristic of a passenger compartment by the interior member so that it is variable or not, an audio select switch 7f and an engine information sensor 7g, and controls the pump D, the solenoid check valve A and the solenoid valve B in accordance with information signals from these sensors. |
