Control system for pneumatic suspensions of a vehicle provided with at least a driving axle and at least an additional axle with symmetrical load on each axle

摘要

The present invention relates to a control system for pneumatic suspension of a vehicle with symmetrical load between right and left side on each axle comprising one single level sensor (12), one single pressure sensor (6, 9) for each axle, one single solenoid valve (4, 8) for each axle, and one solenoid valve for the charging and the discharging of air from a compressed air tank (13) by means of solenoid valves (8) and (4) toward the cells (10) and (14) of the bridge and the cells (2) and (5) of the additional axle. When required, the solenoid valve (15) discharges air from the cells in the atmosphere by means of an outlet (16).