WO2016000085A1

WO2016000085A1 - Lateral suspension and damping system for wheels on vehicles

Info

Publication number: WO2016000085A1
Application number: PCT/CH2015/000095
Authority: WO
Inventors: Duss ROLAND
Original assignee: Duss Evolution Gmbh
Priority date: 2014-07-03
Filing date: 2015-07-01
Publication date: 2016-01-07
Also published as: CH709846A2

Abstract

An axial suspension and damping system for a wheel of a single-track or multi-track vehicle, comprising a damping unit which has a damping housing (11, 12, 13) that encloses a damping volume with a damping medium and a piston (31) arranged within the damping volume, wherein the piston (31) subdivides the damping volume into a first and a second damping chamber (32, 33). The damping is regulated by a through opening in the piston (31) or the housing (11), which connects the damping chambers (32, 33) to each other and a regulating mechanism (18) which engages with the through opening in such a way that a through amount of the damping medium can be set per time unit in a fixed manner, or changed or set by replaceable elements. The system further comprises a suspension unit arranged in the axial suspension and damping system and designed such that a spring action is provided in the axial direction, comprising at least one mechanical element (20) which deforms in the elastic region, or a gaseous and variable volume, which each cushions the axial wheel movement in the axial or another direction. At least one fixed holder and at least one movable holder apply force to the spring element (20) therebetween.

Description

Lateral suspension and damping system for wheels

vehicles

The invention relates to a controlled lateral suspension and damping of a wheel in the lateral direction along the Raddrehachse for at least two-, three- or four-wheeled vehicles.

When cornering single-lane and multi-lane vehicles arise partly large forces in the direction of the wheel axle. By road bumps, different

Friction conditions, braking and driving forces vary this force very much. Today, these forces are absorbed almost exclusively by the tire and dampened as much as possible.

Today, motorcycles can reach inclinations of up to 60 °. The conventional suspension in the vertical direction, such as the front fork and the strut for the rear, can only be limited

Bump off road bumps. This is counteracted today by designing chassis parts and frames so that they can deform in the elastic range. The deformation of the chassis parts saves energy in these parts. This is released uncontrollably again and brings restlessness in the chassis.

When driving the rear wheel by means of chain or toothed belt shifts the wheel incl. Chainring or

Timing pulley from the desired escape this

Drive. The possible spring travel is thus limited. Spring force, damping and travel can be influenced only to a small extent and with great technical effort. The object of the present invention is therefore a

to provide improved suspension and damping system for vehicles, which overcomes the above disadvantages.

This task is accomplished by the realization of

characterizing features of the independent claims. Features that the invention in alternative or

educate in an advantageous manner, are the dependent

To claim.

According to the invention, a spring system in the direction of

Wheel axle proposed which with respect to suspension and

Damping can be adjusted. This will be a

adjustable damping allows.

The invention enables a lateral suspension and

Damping of wheels. It allows the controlled

Adjusting the spring force and the damping. For this purpose, the unit is tire-fair-rim star of the wheel hub

decoupled. In the axial direction, the unit on the hub from a neutral position to the left and right in

desired mass, eg. by 5, 10, 15 or 20mm, move axially. In the direction of rotation is the unit

positive and / or frictionally engaged with the hub

connected .

By means of a predestined spring system (coil spring, air, etc.), the spring force can be adjusted and

generate different spring force characteristics. The

Spring force can be varied on the vehicle.

The invention relates to an axial suspension and

Damping system for a wheel of a single or multi-lane Vehicle having such a trained and arranged in the suspension and damping system

Damping unit, that a damping effect is provided in an axial direction defined by the wheel, with a damping housing which encloses a damping volume with a damping medium, a piston disposed within the damping olumen piston wherein the piston, the damping volume in a first and a second

Subdivided damping chamber, a passage opening in the piston or housing which connects the damping kammern with each other, a regulating mechanism which engages in such a manner in the passage opening, that thus a

Passing amount of the damping medium per unit time set fixed or changed or adjustable by interchangeable elements, and such a trained and arranged in the axial suspension and damping system suspension unit that a spring effect in the axial

Direction is provided with at least one

mechanical element which deforms in the elastic region or a gaseous and variable volume which in each case cushions the axial wheel movements in the axial or other direction and at least one fixed one

On ahme and at least one movable recording between which is the resilient element.

And an axial suspension and damping system where the damping unit and the suspension unit are so

cooperate, that the piston is present in a zero position without applying force to the system and in an axial application of force to the system

Damping housing or the piston according to the

Zero position is moved, wherein the movement is damped by the set passage amount of the damping medium per unit time ud sprung by the applied spring forces of

Federelernente takes place.

And the damping unit and / or the suspension unit, and / or the axial suspension and damping system has a Linearei unit, which is designed such that an axial mobility for at least parts of

Damping unit and / or suspension unit is provided.

And a damping unit for a wheel of a single or multi-lane vehicle and adapted to form part of a system, comprising a damping housing which encloses a damping volume with a damping medium, arranged within the damping volume Kolbes, wherein the piston or the damping housing so with the vehicle is indirectly or directly connected, that the piston is movable relative to the damping housing, and the piston divides the damping volume into a first and a second damping chambers and the

Passage opening for the damping medium the

Damping chambers connects which is arranged in the piston or in the housing and

a regulatory mechanism that fits into the

Passage opening engages that with it a

Passage amount of the damping medium per unit time is adjustable.

And a damping unit whose regulating mechanism has at least one adjusting screw, which in the

Passage opening engages and the passage rate of the damping medium per unit time in dependence of

Screwing the adjusting screw is adjustable. And an axial damping unit for which a damping oil or a damping gas is provided as the damping medium.

And an axial damping unit which cooperates with a rim of the wheel and egg he wheel hub, wherein the piston or the housing is connected to the axially non-movable wheel parts, the damping unit is arranged in the wheel axle or with a defined offset to this and the damping housing and piston are movable relative to each other.

And a damping unit which cooperates with a rim of the wheel and a wheel hub, wherein the piston with the

Wheel hub is rotationally and fixedly connected and the

Damping housing is axially movable relative to the piston, and / or the damping housing relative to the piston in a range of ± 20 mm, in particular ± 15 mm, in particular ± 10 mm, in particular ± 5 mm, is movable.

And an axial suspension unit for a wheel of a single or multi-lane vehicle and adapted to form part of the system, comprising at least one inner

Recording, which is fixed essentially in the direction of the wheel axle and rotates with the wheel or is non-rotatable and

at least one outer receptacle which is movable substantially in the direction of the wheel axle, rotates with the wheel or is non-rotatable and at least one mechanical element that is deformable in the elastic region or a gaseous and variable volume that the axial

Wheel movements in the axial or other direction cushioning and is subjected to force on the recordings.

And an axial suspension unit the inner receptacle is embodied by two inner receptacles and in each case one of the spring elements on each one of the inner

Shooting strikes, and / or the at least one mechanical element is embodied as a spring element with one or more springs.

And an axial suspension unit which cooperates with a rim of the wheel and a wheel hub, wherein the outer receptacle is connected to the rim and the inner

Recording is connected to a wheel hub.

The device according to the invention is described in more detail below purely by way of example with reference to concrete exemplary embodiments shown schematically in the drawings, with further advantages of the invention also being discussed. In detail show:

Fig. 1 shows a complete system according to the invention

Linear guides, suspension and damping as an application for a front wheel of a

Motor vehicle;

Fig. 2 shows the position of the wheel and all lateral

moving parts of a system according to the invention during a spring movement in the direction of travel to the right;

Fig. 3 is a Linearführungseinhert and the two-sided

Springs of a system according to the invention; and

Fig. 4 shows an inventive Dämpfungsvor with direction

Adjustments.

In general, the following figure description refers to an application of the system to a front wheel of a

Motor vehicle (eg automobile). It is referred to the following laterally or axially (= perpendicular to a defined by a rotational direction of the rim 1 circular surface) relative to the wheel hub 4 moving parts of the system: rim 1, drive plate 8, guide ellen 9, housing 11 of the damping unit and housing cover 12th Housing bearing 13, O-ring 14 of the

Housing cover and 0 ~ ring 16 of the piston rod

Damping unit. Further, the springs 20, the spring setting Ischeibe 21, the spring tension pulley 22, the

Screw 23 and the Sehschraub attenuation housing 25 laterally movable.

Fig. 1 shows the arrangement of these parts in the center

Position of the suspension, i. in a zero position. Along the wheel axle, these parts can travel within one spring travel per side of e.g. 10, 12 or 15 mm are moved. The

Zero position can be seen in particular by the central position of the piston 31 within a damping volume defined by the housing of the damping unit 11, so that a first damping chamber 32 and a second damping chamber 32

Dämpf ngskammer 33 have substantially identical volumes.

The piston 31 is fixedly connected to the piston rod 17, which in turn is connected to the vehicle, e.g. is connected by means of the wheel hub, and thus is not movable relative to the wheel hub 4 in the axial direction. The piston rod 17 is thus understood to be immovable in the context of the present invention.

By means of said screws 23 are the axial

movable parts z connected to a unit. In the lateral movement, the guide shafts 9 move in the Linear bearings 10. The linear bearings are pressed in the only rotatably mounted wheel bearing outer ring 7.

The wheel bearing outer ring 7 serves to transmit the

Braking torques on the brake disc mounted on it 3. The wheel bearing hub 4 is neither rotatable nor mounted laterally movable.

For the operation of the suspension of the system:

About tightening the wheel bolts 23, or separate

Screws, the springs 20 are biased by means of the clamping plate 22.

The tension pulley 22 and the drive plate 8 are laterally movable - the spring ends resting on the pulleys each move in accordance with the abovementioned "laterally movable parts." The springs lie with their other end in each case on the

Wheel bearing hub 4 on. This part does not move laterally.

By means of differently thick spring-EinelIscheiben 21, the FedervorSpannung can be changed v / ground.

By means of different springs 20, the spring rate (spring force) can be adjusted as desired.

For the operation of the damping:

The piston rod 17 is fixedly mounted and therefore does not move relative to the vehicle.

The housing of the damping (parts 11, 12 and 13} is

as well as the above-mentioned "Lateral moving parts" relative to the piston rod 17 movably mounted. When cornering or a corresponding occurring lateral force, the "Lateral moving parts" move, for example, to the right as in Fig. 2

shown. This movement is subdued by a

Attenuation medium, e.g. a damping fluid or a damping gas, e.g. Oil, into an upper bore 34 of the

Piston 31 pressed (caused by the force acting on the system in the axial direction by, for example, one

Cornering) and via a piston 31 extending in the

Transverse bore and a lower bore 35 on the right side of the piston 31, i. in the first damping chamber 32, is pressed.

By means of an adjusting screw 18 with a conical tip, which extends into the transverse bore of the piston, the flow of the damping medium is adjustable. The deeper the

Adjusting screw 18 is screwed, the higher the damping effect, since the flow rate of

Damping medium per unit of time is reduced accordingly. With the lock nut 19, the adjusting screw is fixed in position.

The described system can be applied to all variants of wheels of single and multi-lane vehicles.

For example, the system can be used advantageously in motorcycles and cause a significant improvement in the suspension and damping in terms of there frequently and intensively occurring inclinations of the tire relative to the asphalt or relative to the gravitational vector.

Claims

claims

1. Axial suspension and damping system for a wheel

a single or multi-lane vehicle, on iron · such a trained and in the suspension and

Damping system arranged damping unit that has a damping effect in one by the wheel

a defined axial direction is provided, with ° a damping housing which encloses a damping volume with a damping medium,

° a arranged within the damping volume piston

^• the piston the damping volume in a first and a second DAEM Fung comber divided ° a passage opening in the piston or casing chambers, the damping interconnecting ° a regulating mechanism such in the

Passage opening engages that with it a

Passage amount of the damping medium per

Time unit fixed or by

interchangeable elements is altered or adjustable, and

• such formed and in the axial

Suspension and damping system arranged

Suspension unit that has a spring action in the axial

Direction is provided with

° at least one mechanical element that deforms in the elastic range or a gaseous and variable volume which in each case the axial wheel movements in the axial or other

Direction cushioning at least one fixed receptacle and at least one movable receptacle between which the resilient element is located.

Axial suspension and damping system according to claim 1, characterized in that

the damping unit and the suspension unit cooperate in such a way that

• The piston is in a zero position without applying force to the system

• When he axial force is applied to the system, the damper housing or the piston is moved accordingly from the zero position, wherein

° The movement is damped by the set passage rate of the damping medium per

Time unit and

n sprung by the applied spring forces of Federelenente done.

Axial suspension and damping system according to one of

Claims 1 and 2,

characterized in that

• The damping unit is designed according to one of claims 5 to 9 and / or the suspension unit is designed according to one of claims 10 to 11, and / or

• the axial suspension and damping system a

Linear unit has, which is designed such that an axial mobility for at least parts of the damping unit and / or suspension unit is provided. A damping unit for a wheel of a single or multi-lane vehicle and adapted to form part of a system according to one of claims 1 to 4, comprising

A damping housing which encloses a damping volume with a damping medium,

• A arranged within the damping volume Kolbes, wherein

° The piston or the damping housing is directly or indirectly connected to the vehicle such that the piston is movable relative to the damping housing, and

= the piston divided the damping volume in a first and a second damping combing and

° the Durchtrittsöff tion for the damping medium the damping chambers connects which is arranged in the piston or in the housing and

• a regulatory mechanism that fits into the

Passage opening engages that with it a

Passage amount of the damping medium per unit time is adjustable.

A damping unit according to claim 4,

characterized in that

the regulatory mechanism at least one

Adjusting screw, which in the

Passage opening engages and the Durchtrittsmeng the damping medium per unit time as a function of screwing the adjusting adjustable i

Axial damping unit according to claim 4 or 5,

characterized in that a damping oil or a damping gas than that

Damping medium is provided.

7. Axial damping unit according to one of claims 4 to 6,

characterized in that

The damping unit interacts with a rim of the wheel and a wheel hub, wherein the piston or the housing is connected to the wheel parts that are not axially movable,

• The damping unit is arranged in the wheel axle or with a defined offset to this and

• The damping housing and piston are movable relative to each other.

8. Axial damping unit according to one of claims 4 to 7,

characterized in that

• The damping unit cooperates with a rim of the wheel and a wheel hub, wherein the piston with the

Wheel hub is rotationally and fixedly connected and the damper Ngsgehäuse is axially movable relative to the piston, and / or

• the damping housing relative to the piston in one

Range of ± 20 mm, in particular ± 15 mm,

in particular ± 10 mm, in particular ± 5 mm, is movable.

9. Axial suspension unit for a wheel of a single or multi-lane vehicle and adapted to form part of a system according to one of claims 1 to 3, comprising At least one inner receptacle, which is fixed substantially in the direction of the wheel axle and rotates with the wheel or is non-rotatable

At least one outer receptacle, which is movable substantially in the direction of the wheel axle, rotates with the wheel or is non-rotatable

• at least one mechanical element that is in the

elastic range is deformable or one

gaseous and variable volume which absorbs the axial wheel movements in the axial or other direction and is acted upon by the recordings.

Axial suspension unit according to claim 9,

characterized in that

• the inner receptacle is embodied by two inner imprints and in each case one of the spring elements strikes against one of the inner receptacles, and / or

• the at least one mechanical element as

Spring element is embodied with one or more springs.

Axial suspension unit according to one of claims 9 to 10, characterized in that

the suspension unit cooperates with a rim of the wheel and a wheel hub, wherein the outer receptacle is connected to the rim and the inner receptacle is connected to a wheel hub.