Arrangement for wheel suspension

Inactive Publication Date: 2003-06-05
VOLVO CONSTR EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0019] By virtue of the invention, an advantage is obtained in that it affords an effective solution to the problem of simultaneously providing good comfort and a high degree of roll rigidity. This is achieved at a significantly lower cost than a corresponding hydraulic solution.
0020] By virtue of the invention, a function is provided, which works only in the event of rolling movements of the vehicle in question. In this way, independence is brought about between the rigidity in the vertical direction of the vehicle and the rigidity as far as rolling movements are concerned

Problems solved by technology

Otherwise, at high speeds with an unloaded load unit and rigid springing in the vertical direction, a problem may arise on account of the load unit having a tendency to bounce and rock, which of course has a negative effect on driver comfort.
In a frame-steered dumper as described above and having weak springing, however, another problem is encountered when the vehicle is then driven with load.
To be more precise; in the form of inadequate roll rigidity of the vehicle or too low of a degree of rigidity against swaying movements.
But rigid springing then leads to poor comfort when the vehicle is unloaded.
Moreover, more rigid springing results in an increase in the dynamic forces that act against the ground, which in turn increases the wear on the road.
The ab

Method used

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Example

[0029] Figure 1 shows a greatly simplified side view of a frame-steered dumper 1, in which the present invention is intended to be used. The invention, however, is not limited to use in this type of vehicle, but can in principle be used in all types of vehicle where a requirement exists for a wheel suspension which provides driver comfort and a high degree of roll rigidity.

[0030] Figure 1 therefore shows a frame-steered dumper 1; the following description does not deal with the vehicle in detail but only the components and functions of the vehicle which are necessary for understanding the invention. The dumper 1 includes an engine unit 2 with a wheel axle 3. The dumper 1 also includes a load unit 4 with two wheel axles; to be precise, a front wheel axle 5 and a rear wheel axle 6. The engine unit 2 and the load unit 4 are coupled together via a special steering coupling 7 that allows the engine unit 2 and the load unit 4 to move essentially independently in relation to one another. The

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PUM

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Abstract

Abstract of Disclosure Arrangement for wheel suspension in a vehicle (1) including a vehicle frame (9) that bears at least two bogie axles (16, 17) which in turn each bear a wheel axle (5, 6), and also a first bogie element (18) and a second bogie element (19) which extend essentially in the longitudinal direction of the vehicle and are suspended in said vehicle frame (9). The invention includes at least one connection element (25; 41) extending essentially transversely to the longitudinal direction of the vehicle (1), which connection element (25; 41) is connected movably to at least one of the bogie axles (16; 17) and also to the bogie elements (18, 19), for transmission of a force which arises when relative movement takes place between the bogie axle (16; 17) concerned and said bogie elements (18, 19). By virtue of the invention, good comfort and a high degree of roll rigidity of the vehicle are obtained.

Description

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Claims

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Application Information

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Owner VOLVO CONSTR EQUIP
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