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System and method for elevation adjustment of vehicle chassis elements and vehicle comprising the system

A chassis element, high technology, applied in the direction of vehicle components, vehicles for freight, vehicle springs, etc., can solve the problems of time-consuming, waste of pressurized fluid, etc.

Active Publication Date: 2011-09-14
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, this is a time consuming process which also results in wastage of pressurized fluid (eg in the form of compressed air)

Method used

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  • System and method for elevation adjustment of vehicle chassis elements and vehicle comprising the system
  • System and method for elevation adjustment of vehicle chassis elements and vehicle comprising the system
  • System and method for elevation adjustment of vehicle chassis elements and vehicle comprising the system

Examples

Experimental program
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Effect test

Embodiment Construction

[0044]figure 1 Shown is a vehicle 110 such as a truck and a self-contained cargo unit 120 such as a replaceable container resting on a pair of legs 122a and 122b extending towards a generally ground surface 150 . Here, it is assumed that the chassis element 119 initially has a height h above the surface 150 on which the vehicle 110 rests 0 . height h 0 Low enough to allow the chassis element 119 to back up under the cargo unit 120 in the R direction. figure 2 Vehicle 110 and cargo unit 120 are shown when chassis element 119 has been lifted and cargo unit 120 has been loaded onto vehicle 110 . Preferably, if the cargo unit 120 is a replaceable container, the vehicle 110 includes a structural underframe adapted to carry the replaceable container, and the height of the structural underframe above the surface 150 can be adjusted together with the height of the chassis elements 119 .

[0045] return now figure 1 , the vehicle 110 is fitted with a control system for adjusting t...

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PUM

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Abstract

The present invention relates to a system for adjusting an elevation of a motor vehicle's chassis element above a surface on which the vehicle is situated, such that at least one support leg of a free-standing loadable / unloadable cargo unit is off-loaded, and thus the support leg can be disengaged. A height sensor means registers a height parameter indicative of the elevation and a pressure sensor means registers a pressure parameter indicative of a fluid pressure level in a fluid chamber of a level control mechanism for the chassis element. A control unit receives the height and pressure parameters, and in response thereto, produces a control signal that causes the chassis element to be elevated. During elevation of the chassis element, the control unit investigates whether or not a first criterion is fulfilled with respect to a test parameter expressing a ratio of the fluid pressure level increase per unit of the elevation. If the first criterion is fulfilled, the control unit investigates whether or not a second criterion is fulfilled with respect to the test parameter. Provided that also the second criterion is fulfilled, the control unit causes the elevation of the chassis element to be discontinued. Namely, at this point in time, the support leg has been off-loaded. The invention also relates to an adjusted method and the motor vehicle.

Description

technical field [0001] The present invention generally relates to the automatic raising and lowering of vehicle chassis components. More particularly, the invention relates to a system for adjusting the height of a chassis element of a motor vehicle above a surface on which said vehicle rests and a motor vehicle comprising said system. The invention also relates to a method for adjusting the height of the chassis of a motor vehicle. Background technique [0002] When loading and unloading cargo onto and off heavy vehicles such as trucks, tractors and trailers, it is common practice to control the load carrying means of the vehicle so that the load can be raised or lowered appropriately. For example, the height of the load bed of the vehicle can be adjusted to the level of the loading bridge. [0003] Furthermore, if a container or equivalent cargo unit on stilts is to be loaded onto a truck, trailer or skip loader, it is generally valid if the vehicle can be reversed under...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G17/017B60G17/018
CPCB60G2400/252B60G17/0155B60G2400/50B60G2202/412B60G2202/152B60G17/017B60G2300/042B60G2500/201B60G2500/20B60G2300/38B60G2800/204B60G2300/02B60P1/6445B60G17/018
Inventor M·斯塔韦乌斯R·赖姆达尔M·格兰斯特伦
Owner SCANIA CV AB
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