METHOD OF CONTROLLING REGENERATION CYCLE FOR AIR DRYER IN CLOSED VEHICLE HEIGHT CONTROL SYSTEM FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide an air suspension system provided with an air dryer, which prevents freezing of a component and leaves the maximum air amount in the system.SOLUTION: Pressure medium chambers (6a-6d) and a compression air storage tank (12) are charged by a compressor (8) via a compression air suction line (5), and ventilated via a compression air line (32). The amount of the compression air supplied from the compressor (8) via a dryer (10) placed in the compression air line (4) and temperature or humidity of the air drawn from the atmosphere are measured, and the amount of regenerated air required by the air dryer is determined as a function of ambient temperature or humidity of the sucked air so as to reach a preferable dew point.