Method for operating a leveling device of a vehicle

A technology of level adjustment and operation method, which is applied in vehicle springs, vehicle parts, transportation and packaging, etc., and can solve problems such as air spring bellows wear and tear

Inactive Publication Date: 2013-01-30
KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition to the wear caused by temperature and external influences, the mechanical loads in use will also cause the air spring bellows to wear

Method used

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  • Method for operating a leveling device of a vehicle

Examples

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Embodiment Construction

[0021] The figure shows a known air spring 1 . It has rolling pistons 2, bellows caps 4 arranged at vertical intervals, and rolling bellows 6 made of elastic material. The rolling bellows rolls with rolling folds 8 on the radially outer peripheral surface 10 of the rolling piston. As is clearly shown in the figure, the roll fold 8 is here part of the bellows wall 12 (Abschnitt). This is the part where the greatest amount of deflection and bending occurs, here about 180 degrees.

[0022] Here, the rolling bellows 6 together with the bellows cover 4 and the rolling piston 2 enclose an air chamber 14 . This air chamber is ventable and deflated to adjust the body level relative to the vehicle chassis.

[0023] The air spring 1 comprises a hollow air spring arrangement with level adjustment. With the aid of the leveling adjustment, the leveling setpoint can be adjusted and adjusted manually, for example during trailer loading on a slope, and / or automatically within the framewor...

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PUM

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Abstract

The invention relates to a method for operating a leveling device of a vehicle body of a vehicle, said device comprising at least one air spring (1). According to the invention, the level of the vehicle body is adjusted at the beginning, during or immediately prior to ending a trip at least once to a level that deviates from a target level predetermined for the trip. In this way, different regions of the jacket wall of an air bellows are subjected to a maximum load during the trip, thus no longer limiting the wear of the bellows wall exclusively to the region associated with the target level, but distributing it to larger regions of the bellows wall.

Description

technical field [0001] The invention provides a method for operating a leveling device of a motor vehicle body comprising at least one air spring, as stated in the preamble of claim 1 . Background technique [0002] The air volume of the air spring is used on the one hand for axle damping of the vehicle. On the other hand, such an air spring can be horizontally adjusted by means of a valve arrangement, ventilation and deflation through the air spring bellows. This leveling is mainly of advantage for trucks, for example when the body has to be parked at ramp level for loading or when an alignment has to be made to avoid tilting of the body due to eccentric loads. Furthermore, a bellows can be assigned to each wheel or only to each axle. Such a leveling device is known, for example, from DE 10 2006 016 989 A1. [0003] Folding bellows or rolling bellows are used as elastic parts of air springs. An air spring with rolling bellows is described, for example, in DE 10 2006 016...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/052B60G17/016
CPCB60G2800/164B60G17/016B60G2202/152B60G17/0161B60G2300/07B60G2500/30B60G17/0523B60G2400/821
Inventor 托马斯·纳贝尔约瑟夫·邦斯
Owner KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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