Air suspension system and method for regulating the air pressure in the air bellows of an air suspension system

摘要

The invention relates to an air suspension system for a vehicle which is provided with a load changer, and a method for regulating the air pressure in the air bellows of such an air suspension system. A control device (21 ) of the air suspension system determines or receives values pertaining to a f first parameter which represents the distance in the height direction between a forward wheelshaft (4) of the vehicle or the air pressure in the air bellows (40) at a rear wheelshaft (6a) of the vehicle, and values pertaining to a second parameter which represents the distance in the height direction between said rear wheelshaft and the chassis of the vehicle or the air pressure in the air bellows (30) at said forward wheelshaft. The control device inactivates the automatic regulation of the height position of the vehicle's chassis when the control device finds that the following conditions, possibly in combination with one or more further conditions, are simultaneous fulfilled : • the value of said first parameter is increasing, and • the value of said second parameter is decreasing.