Wabco Gmbh

Zf Cv Systems Europe Bv

Andreas Rutsch

Michael Haverkamp

Johann Lucas

Thomas Stellmacher

Ingo Jovers

Reinhard Gocz

Frauke Rathjen

Berend Kleen

Andreas Schwarzer

Tobias Gomann

Tobias GÖMANN

A vehicle air suspension system includes at least two spring bellows assigned to pneumatic springs on opposite vehicle sides of a vehicle axle. The springs can be connected via connection lines, each of which is provided with a level-regulating valve, to a main pressure line and can be shut off with respect thereto. The main pressure line can be connected via a main pressure valve alternately to a compressed air source and to a compressed air sink. The connection lines of the spring bellows are connected to each other via a connection line provided with a throttle and can be shut off by a shut-off valve. A mechanically activatable shut-off valve is coupled to one of the level-regulating valves arranged on the offside of the vehicle such that the shut-off valve is open when the level-regulating valve is closed and is closed when the level-regulating valve is open.

Air suspension system of a motor vehicle

A suspension system includes spring bellows that are associated with pneumatic springs of vehicle axles, are connectable by lines having level control valves to a main pressure line, and can be shut off with respect thereto. The main line is connectable by valves alternately to a compressed air source and a sink, and can be shut of with respect thereto. To set different air mass flow rates when air is supplied to/removed from the bellows, the bellows of the springs at least on a vehicle axle or side can be connected to the main line in parallel with the connecting lines, at least by further connecting lines having further level control valves, and can be shut off with respect thereto. The further valves have nozzle cross-sectional surfaces the same size as the other level control valves. Chokes are downstream of the further valves in the ventilation direction, the cross-sectional surfaces thereof being smaller than the nozzle cross-sectional surfaces of the further valves.

Pneumatic suspension system of a motor vehicle and method

An electropneumatic control arrangement for an automatic vehicle level control system, particularly of a commercial vehicle, includes at least; a solenoid valve unit having at least two electropneumatic solenoid valves, a compressed air inlet for infeeding compressed air, at least one compressed air connection for at least one air bellows and electrical control inputs, and an electronic control unit for actuating the solenoid valve unit. The electronic control unit comprises control outputs for electrically connecting to the control inputs of the solenoid valve unit. A plug connector is configured on the housing of the solenoid valve unit, in which the electrical control inputs are disposed, and a plug connector is provided on the housing of the electronic control unit, in which the control outputs are disposed. The plug connectors are mechanically plugged into each other.

Electropneumatic control arrangement for an automatic vehicle level control system

Growing community of inventors

Hannover, Germany

Andreas Rutsch