Air Suspension System

SUSPENSION CONTROL: AIR SUSPENSION SYSTEM: SYSTEM DIAGRAM













SYSTEM DESCRIPTION

1. REAR AIR SUSPENSION SYSTEM DESCRIPTION

This system uses pneumatic cylinders. The suspension control ECU analyzes the information based on the switches, sensors and input signals, operates the compressor assembly and uses the solenoid valves to control the vehicle height.

The suspension control ECU detects, via the height control sensor, changes in the rear vehicle height that result from the number of occupants or the amount of load. Then, the suspension control ECU controls the height control valves and compressor assembly in order to automatically adjust the rear vehicle height to a constant (normal) vehicle height.

Three vehicle heights can be selected by operating the height control switch: HI, NORMAL and LO. The HI vehicle height ensures performance on rough roads. The LO vehicle height facilitates the entry and exit of the occupants and the loading and unloading of cargo. The normal vehicle height helps realize excellent controllability and riding comfort during normal driving.

2. ADAPTIVE VARIABLE SUSPENSION SYSTEM DESCRIPTION

(a) The suspension control ECU receives signals from the sensors and switches to control the absorber control actuators. It uses these signals to optimally control the damping force in accordance with the driving conditions and road conditions.

3. FUNCTION OF MAIN COMPONENTS