| 摘要 |
PURPOSE:To prevent nose-dive, by providing a suspension bushing which is disposed in a coupling part between the top end part of a shock-absorber and a vehicle body and in which pressure fluid may be charged, and by charging high pressure fluid in the bushing when acceleration exceeds a set value upon deceleration to raise the height of the vehicle. CONSTITUTION:A resilient member 10 incorporated therein with a plurality of hollow bags 22 which are connected with a pressurized fluid source through a hose 24 and a pressure control valve 29 is disposed in a suspension bushing 1 between the outer and inner support plates 11, 12. The pressure control valve 29 comprises a first solenoid 13 which communicates a pump 25 with an outlet upon energization but a reservoir 26 with the outlet upon deenergization, and a second solenoid valve 30 which is opened upon energization but closed upon deenergization. When the detected value by a deceleration sensor 36 is greater than a set value in the condition of vehicle deceleration upon running of the vehicle, a control circuit 32 energizes both solenoid valves 28, 30 to increase the pressure of the hollow bags 22 so that the height of the vehicle is raised. |
