Air suspension system of a motor vehicle

US9358855B2 · kind B2 · utility

Assignee

• WABCO GmbH · DE

Inventors

• Tobias Gomann · Bodenwerder, DE
• Michael Haverkamp · Hannover, DE
• Andreas Rutsch · Hannover, DE

Key dates

• Filing date: Dec 6, 2012
• Grant date: Jun 7, 2016
• Expiry date: Dec 6, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60G2800/915
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

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.