ADAPTIVE VARIABLE SUSPENSION SYSTEM


  1. CONSTRUCTION


    1. The shock absorber assembly has an absorber control actuator, which changes the damping force, positioned on the lower part of the outer shell.

    2. A center pipe is provided to create an oil passage to the absorber control actuator. During bound and rebound, oil flows in the same direction in the center pipe and the damping force is changed within the absorber control actuator.

      B0056P5C01
      *1 Front Pneumatic Cylinder with Shock Absorber Assembly *2 Rear Pneumatic Cylinder with Shock Absorber Assembly
      *3 Absorber Control Actuator - -

      Figure 1. Oil Flow

      B0056FVC01
      *1 Piston Valve *2 Base Valve
      *3 Absorber Control Actuator *4 Center Pipe
      *a During Bound *b During Rebound

  2. OPERATION


    1. Pilot pressure at the rear of the main valve is controlled to vary the pressure (damping force) that opens the main valve. The pilot pressure is continuously adjusted by the linear solenoid in 650 steps to achieve superior response.

    2. The pilot pressure is determined by the balance between the linear solenoid action and piston pressure. When the linear solenoid action is small (low current), the pilot pressure becomes lower. As a result, the damping force becomes lower. Conversely, when the linear solenoid action is large (high current), the pilot pressure becomes higher. As a result, the damping force becomes higher.

      B0056H2C01
      *1 Center Pipe *2 Main Valve
      *3 Spool Valve *4 Linear Solenoid
      *5 Pilot Valve - -
      *a Pilot Pressure Chamber *b Piston Pressure Chamber
      B005637 Piston Pressure B0056J1 Pilot Pressure

      Figure 2. Absorber Control Actuator Operation

      B00563ME01