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DEVICE FOR OPERATING AN AIR SUSPENSION LEVEL SYSTEM IN A VEHICLE DURING BRAKING

IP.com Disclosure Number: IPCOM000242963D
Publication Date: 2015-Sep-03
Document File: 3 page(s) / 26K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present invention relates to a device for operating an air suspension level system in a vehicle during braking. With such a device it will be possible to have level control available in applications where it is absolutely required and where the driver can select if level control of the air suspension level system should be available or not, also during braking.

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DEVICE FOR OPERATING AN AIR SUSPENSION LEVEL SYSTEM IN A VEHICLE DURING BRAKING

The present invention relates to a device for operating an air suspension level system in a vehicle during braking. With such a device it will be possible to have level

control available in applications where it is absolutely required. This makes the operation of the air suspension level system easy and applicable for different vehicle applications.

Air suspension level systems are commonly used in heavy motor vehicles, such as trucks, for controlling the chassis height level at all times, e.g. when loading or

unloading cargo. The air suspension level system can also be used for controlling load distribution between bogie axles, raising/lowering tag axle(s) of the vehicle etc.

There is however an exception during braking of the vehicle. In order not to affect vehicle stability, the air suspension level system does not adjust the level at all during braking. This exception is possible to override by changing a parameter in a control

unit. In that case level control is allowed during braking, but only for velocities below 30 km/h.

The possibility to have level control available even during braking is useful in some applications. For example for vehicles adapted for driving in connection with construction work, such as vehicles transporting asphalts or for petrol trucks at

airports. The driver often wants to be able to control the chassis height leveling also during braking.

A problem with the cu...