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Method for leveling an air-suspended motor vehicle

A technology of air suspension and motor vehicles, which is applied in the direction of motor vehicles, vehicle springs, vehicle parts, etc., can solve the problem of discomfort lasting for a long time, and achieve the effect of saving structural space and manufacturing cost

Active Publication Date: 2019-11-22
ZF CV SYST EURO BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This adjustment process can take an uncomfortably long time and requires a comparatively high number of switching valve actuations in leveling systems, so that the entire service life of such switching valves lasts overall in a relatively short period of time

Method used

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  • Method for leveling an air-suspended motor vehicle
  • Method for leveling an air-suspended motor vehicle
  • Method for leveling an air-suspended motor vehicle

Examples

Experimental program
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Embodiment Construction

[0039] For better orientation, first describe Figure 4 The motor vehicle shown, that is to say a bus 50 , has a control device 1 arranged thereon, with which the method according to the invention can be carried out. The bus 50 has a body 80 with a front side 51 pointing in the forward direction of travel, a rear side 52 pointing in the rear direction of travel, a vehicle side 53 inside the lane and a vehicle side 54 outside the lane. Arranged in the area of ​​the front side 51 of the bus 50 is a steering wheel 57 by means of which the wheels 61 , 62 of the front axle 60 can be steered by the driver via a steering shaft 58 and a steering gear 59 .

[0040] Body 80 is carried by front axle 60 and rear axle 70 of bus 50 . A left front wheel 61 and a right front wheel 62 are rotatably arranged on the free end of the front axle 60 , while a left rear wheel 71 and a right rear wheel 72 are fastened rotatably on the rear axle 70 . Right and left front and right and left rear wheel...

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PUM

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Abstract

The invention relates to a method for leveling an air-suspended motor vehicle having an air-suspended front axle (60) and at least one air-suspended rear axle (70), and wherein a plurality of Air spring bellows (2, 3, 6, 7) between the chassis elements of the axles (60, 70) and the body (80, 80') in order to adjust a predetermined target level (x soll ) via the horizontal regulating valves (15, 16, 17, 18) configured as switching valves respectively at the lower tolerance boundary (x T_u ) is inflated, and the upper tolerance boundary (x T_o ), and wherein, in the presence of a specific operating state, at least one air spring bellows ( 2, 3, 6, 7) the two tolerance boundaries (x T_u 、x T_o ) at least one tolerance boundary. In order to reduce the duration of the adjustment, it is provided that the driving speed and / or the operating state of the parking brake (63, 64, 73, 74) are sensed, when the driving speed is below the minimum speed and / or when operating the parking brake (63, 64, 73, 74), measure the actual level (x ist ), the actual level (x ist ) and the target level (x soll ) for comparison to obtain the relative target level (x soll ) has the largest deviation of the actual level (x ist ), and the actual level (x ist ) and the target level (x soll ) The air spring bellows (2, 3; 6, 7) with the largest deviation (Δx_o_t2), expand the initial tolerance zone (ΔxT) to the corrected tolerance zone (ΔxTk).

Description

technical field [0001] The invention relates to a method for leveling an air-suspended motor vehicle, such as a bus, which has an air-suspended front axle and at least one air-suspended rear axle and in which a plurality of The air spring bellows between the chassis element of the axle and the body are inflated in each case below the lower tolerance limit of the tolerance band via level control valves designed as switching valves in order to set a predetermined target level, and in each case Bleeding when the upper tolerance limit of the tolerance zone is exceeded, wherein at least one of the two tolerance limits for at least one axle or at least one air spring bellows on the vehicle side is changed in a suitable manner when a specific operating state is present One. Background technique [0002] Air suspensions have clear advantages over conventional steel suspensions and are therefore being used not only in commercial vehicles, such as trucks and buses, but also preferabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G17/017B60G17/015
CPCB60G17/017B60G2202/152B60G2300/14B60G2400/204B60G2400/252B60G2400/952B60G2500/32B60G2600/02B60G2600/21B60G2600/28B60G2800/202B60G2800/914B60G17/0155B60G17/0525B60G17/052
Inventor 于尔根·阿尔伯斯西格弗里德·巴特尔莱茵哈德·戈奇英戈·约维斯乌韦·伦茨
Owner ZF CV SYST EURO BV
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