Adjustment of the bearing load of a central axle trailer

摘要

The method involves determining whether current supporting load is outside a pre-selected supporting load range. The current supporting load is reduced by separate alteration of quantity of air in one of a set of pneumatic suspension circuits when the current supporting load exceeds the pre-selected supporting load range. The current supporting load is increased by separate alteration of the quantity of air in one of the pneumatic suspension circuits when the current supporting load is below the pre-selected supporting load range. Independent claims are also included for the following: (1) an electronic control device (2) a pneumatic cushioning system.