WO2022214241A1 - Achsträgerlagerung für eine, insbesondere mittels elektromotor angetriebene, achse eines kraftfahrzeugs - Google Patents
Achsträgerlagerung für eine, insbesondere mittels elektromotor angetriebene, achse eines kraftfahrzeugs Download PDFInfo
- Publication number
- WO2022214241A1 WO2022214241A1 PCT/EP2022/054966 EP2022054966W WO2022214241A1 WO 2022214241 A1 WO2022214241 A1 WO 2022214241A1 EP 2022054966 W EP2022054966 W EP 2022054966W WO 2022214241 A1 WO2022214241 A1 WO 2022214241A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rubber
- bearing
- motor vehicle
- rigidity
- axle
- Prior art date
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 84
- 238000013016 damping Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 101100173447 Caenorhabditis elegans ger-1 gene Proteins 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
- B60G2204/4104—Bushings having modified rigidity in particular directions
Definitions
- the invention relates to an elastic mounting of an axle carrier, in particular for a rear axle of a two-track motor vehicle, according to the preamble of the first claim.
- Axle carriers are screwed to screw points, rigidly or elastically supported, usually on longitudinal and/or cross members of a motor vehicle chassis.
- the screwing direction is usually vertical in the vehicle, i.e. in the vehicle z-direction, also known as the vertical direction of the vehicle, rarely in the direction of travel, also known as the vehicle x-direction or longitudinal direction of the vehicle, or in the transverse direction of the vehicle, also known as the vehicle y-direction.
- DE 102013210576 A1 describes an elastic mounting for a rear axle support structure on a motor vehicle, the former being particularly suitable for installing an electric drive.
- a rear axle module is arranged on a vehicle body, with the rear axle module comprising the rear axle carrier, which, seen in the longitudinal direction of the vehicle, is connected to the vehicle body in the middle and rear area of the rear axle module via two middle and two rear rear axle carrier bearings, the rear axle module being connected to the vehicle body via front Stock, rich in its front loading is also connected to the vehicle body.
- rear axle carrier There are vehicles with internal combustion engine, elastically mounted rear axle carrier and rear axle known. With these, the rear axle differential is elastically connected to the rear axle carrier. The latter is elastically mounted with rear axle carriers on the vehicle body.
- the ratio of the radial x-stiffness to the axial z-stiffness Cx:Cz is at least 0.9-13 , with selected stiffer rear axle carrier bearings a disadvantageous longitudinal comfort.
- a bearing for an axle of a two-track motor vehicle is provided, with an axle carrier which is attached to a carrier, in particular a motor vehicle body, via an elastic linkage by means of at least one rubber bearing, each rubber bearing consisting of at least one rubber sleeve, the outer circumference of which is supported by a
- the bushing is surrounded and the inner circumference of which is mounted on a bearing core in the axial longitudinal direction, the rubber bearing articulation on the carrier being positioned in such a way that the rubber sleeve extends with its axially directed longitudinal axis in the vertical direction of the motor vehicle, characterized in that the rigidity of the rubber mount in the vertical direction is between a lower value and an upper value, depending on the rigidity of the rubber mount in the longitudinal direction of the motor vehicle, i.e.
- the lower value of the rigidity of the rubber mount in the vertical direction not being less than 1.4 times the rigidity of the rubber mount in the longitudinal direction and the upper value of the rigidity of the rubber mount in the vertical direction is not more than 10 times the rigidity of the rubber mount in the longitudinal direction.
- the bearing for an axle of a two-track motor vehicle is provided with an axle carrier which is attached to a carrier, in particular a motor vehicle body, via an elastic linkage by means of at least one rubber bearing, with each rubber bearing consisting of at least one rubber sleeve, the outer circumference of which is supported by a The bushing is surrounded and the inner circumference of which is mounted on a bearing core in the axial longitudinal direction, the rubber bearing articulation on the carrier being positioned in such a way that each rubber sleeve extends with its axially directed longitudinal axis in the vertical direction of the motor vehicle, characterized in that the rigidity of the rubber mount in the vertical direction is between a lower value and an upper value, depending on the rigidity of the rubber mount in the transverse direction of the motor vehicle, i.e.
- the lower value of the rigidity of the rubber mount in the vertical direction not being less than 0, 3 times the Stiffness of the rubber mount in the lateral direction and the upper value of the rigidity of the rubber mount in the vertical direction is not more than half the rigidity of the rubber mount in the transverse direction.
- Such a rigidity formation for a rubber bearing via its rubber sleeve and the use of this rubber sleeve for a vertical axle carrier bearing, in particular rear axle carrier bearing, for connecting the Axle carrier with the structure of the motor vehicle has the advantage that the properties of the axle carrier rubber bearing, in particular for electric drives integrated in the axle carrier or other heavy-weight drive elements, in terms of function and costs, vibration comfort and rolling acoustics, a hitherto unrecognized conglomeration properties that have a positive effect on drive and driving comfort, without having to make compromises at the expense of functional quality or costs.
- axle carrier rubber mounts with the new stiffness ratios Cx/Cz and/or Cy/Cz per axle carrier, in which the stiffness in terms of longitudinal comfort in the x direction and/or the rolling acoustics in the y Direction is designed to be sufficiently low, but the rigidity in the z-direction is designed to be sufficiently high in terms of reducing drive vibrations.
- the following locations and uses on the motor vehicle are particularly preferred: as a rubber mount for use in the rear axle carrier or front axle carrier, for elastic axle carrier mounting on the body.
- Such rigidity ratios can be attached to the vehicle body with two front and two rear axle carrier bearings for axle carrier bearings, seen in the longitudinal direction of the vehicle and in the direction of travel, in such a way that at least the two front axle carrier bearings in the forward direction of travel or at least the two, in The rear axle carrier bearing or all four axle carrier bearings have a described rubber bearing stiffness distribution before driving in the reverse direction.
- Such an axle carrier is particularly easy to attach to the motor vehicle if the bushing of each rubber bearing is is attached to the body series through this inserted through-bolt.
- At least one rubber bearing is used, which is additionally hydraulically damped in at least one of the damping directions, vertical direction and/or transverse direction and/or longitudinal direction.
- the particularly preferred direction hydraulically damped by the rubber mount is the longitudinal direction of the motor vehicle.
- articulation on the vehicle body is synonymous with and represents an articulation on a body or on a vehicle frame.
- vehicle body is synonymous with and represents an articulation on a body or on a vehicle frame.
- Such a linkage can also be used for an electric drive module on an axle carrier or subframe or on other parts connected to the vehicle body that are not exclusively associated with a wheel suspension, depending on the vehicle design.
- articulations on parts such as articulations on the vehicle body are included in the scope of protection of the invention.
- the figure shows an embodiment of a rubber mount 1 according to the invention for fastening, according to the prior art, an axle carrier, not shown, on a carrier, not shown, of a motor vehicle body, not shown.
- the rubber mount 1 provides, in a preferred embodiment, together with three other, in particular identical to Gummila ger 1 trained, non-illustrated rubber bearings, an elastic on steering of the axle support, like at least two non-illustrated longitudinal or cross members of the vehicle body ready.
- the rubber mount 1 has a, in particular metallic, bearing core 4 with a through-hole 6, into which a non-illustrated through-bolt can be inserted, which, using a non-illustrated threaded bushing or a non-illustrated thread, connects to the vehicle body manufactures.
- a seated with her non-visible outer circumference in a bushing 3 rubber sleeve 2 of the rubber bearing 1 is pushed onto the outer circumference of the bearing core 4 with its non-visible inner circumference catch.
- each rubber mount 1 extends with its axially directed longitudinal axis 5 in the vertical direction of the motor vehicle and is aligned therein, based on the coordinate system 7 shown, in such a way that the direction-specifically different rigidities of each rubber sleeve 2 have a ratio of the radial x Stiffness, ie in the longitudinal direction, to form the axial z-stiffness, ie in the vertical direction of the rubber bearing 1, Cx/Cz smaller than or equal to 0.7, in particular between 0.4 and 0.6.
- Cy/Cz may be less than or equal to 3.5, in particular between 3 and 2.
- Preferred combinations of rigidity values of the rubber mount 1, from the ratio values mentioned above, per direction in the coordinate system 7, are for example:
- an extension in the transverse direction of the motor vehicle which is defined as the direction y drawn in the coordinate system 7, extends in a horizontal plane 8 of the motor vehicle, orthogonally to the vertical direction z drawn in the coordinate system 7 and with the likewise in the coordinate system 7 a drawn forward travel direction x of the motor vehicle, the horizontal plane 8 forms.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Springs (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280023144.1A CN117043489A (zh) | 2021-04-07 | 2022-02-28 | 用于机动车的尤其是借助电动机驱动的车桥的车桥支架支承装置 |
US18/285,987 US20240183420A1 (en) | 2021-04-07 | 2022-02-28 | Axle Support Bearing for a Motor Vehicle Axle Driven in Particular by Means of an Electric Motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021108655.8 | 2021-04-07 | ||
DE102021108655.8A DE102021108655A1 (de) | 2021-04-07 | 2021-04-07 | Achsträgerlagerung für eine, insbesondere mittels Elektromotor angetriebene, Achse eines Kraftfahrzeugs |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022214241A1 true WO2022214241A1 (de) | 2022-10-13 |
Family
ID=80683700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/054966 WO2022214241A1 (de) | 2021-04-07 | 2022-02-28 | Achsträgerlagerung für eine, insbesondere mittels elektromotor angetriebene, achse eines kraftfahrzeugs |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240183420A1 (de) |
CN (1) | CN117043489A (de) |
DE (1) | DE102021108655A1 (de) |
WO (1) | WO2022214241A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014104176A1 (de) * | 2013-03-28 | 2014-10-02 | Fuji Jukogyo Kabushiki Kaisha | Aufhängungsvorrichtung |
DE102013210576A1 (de) | 2013-06-06 | 2014-12-11 | Bayerische Motoren Werke Aktiengesellschaft | Anordnung eines Hinterachsmoduls an einem Fahrzeug-Aufbau sowie ein Hinterachsmodul für eine solche Anordnung und ein zweiachsiges, zweispuriges, zumindest teilweise mittels eines Elektromotors antreibbares Fahrzeug mit einer solchen Anordnung |
WO2017097957A1 (en) * | 2015-12-11 | 2017-06-15 | Hendrickson United Kingdom Ltd | Axle/suspension systems |
-
2021
- 2021-04-07 DE DE102021108655.8A patent/DE102021108655A1/de active Pending
-
2022
- 2022-02-28 CN CN202280023144.1A patent/CN117043489A/zh active Pending
- 2022-02-28 WO PCT/EP2022/054966 patent/WO2022214241A1/de active Application Filing
- 2022-02-28 US US18/285,987 patent/US20240183420A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014104176A1 (de) * | 2013-03-28 | 2014-10-02 | Fuji Jukogyo Kabushiki Kaisha | Aufhängungsvorrichtung |
DE102013210576A1 (de) | 2013-06-06 | 2014-12-11 | Bayerische Motoren Werke Aktiengesellschaft | Anordnung eines Hinterachsmoduls an einem Fahrzeug-Aufbau sowie ein Hinterachsmodul für eine solche Anordnung und ein zweiachsiges, zweispuriges, zumindest teilweise mittels eines Elektromotors antreibbares Fahrzeug mit einer solchen Anordnung |
WO2017097957A1 (en) * | 2015-12-11 | 2017-06-15 | Hendrickson United Kingdom Ltd | Axle/suspension systems |
Also Published As
Publication number | Publication date |
---|---|
DE102021108655A1 (de) | 2022-10-13 |
US20240183420A1 (en) | 2024-06-06 |
CN117043489A (zh) | 2023-11-10 |
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