WO2022100979A1 - Support d'essieu d'un véhicule - Google Patents

Support d'essieu d'un véhicule Download PDF

Info

Publication number
WO2022100979A1
WO2022100979A1 PCT/EP2021/079202 EP2021079202W WO2022100979A1 WO 2022100979 A1 WO2022100979 A1 WO 2022100979A1 EP 2021079202 W EP2021079202 W EP 2021079202W WO 2022100979 A1 WO2022100979 A1 WO 2022100979A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
axle
axle support
corner elements
supports
Prior art date
Application number
PCT/EP2021/079202
Other languages
German (de)
English (en)
Inventor
Stephanus Sebastiaan Bester
Josef Maximilian Kurz
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2022100979A1 publication Critical patent/WO2022100979A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded

Definitions

  • the present invention relates to an axle support of a vehicle and a vehicle.
  • Axle carriers of vehicles are known, which are used, for example, in vehicles with a self-supporting body. Such an axle carrier is usually connected to the body and set up for fastening the wheel suspension and associated components. Axle carriers are often designed as cast components. Alternatively, profile elements can be bent to form an axle carrier. Known axle beams are usually expensive to develop and manufacture and can only be used for a single vehicle geometry.
  • the axle support according to the invention with the features of claim 1 is characterized in that it is easily and inexpensively scalable and thus adaptable to different vehicle sizes.
  • This is achieved by an axle beam of a vehicle comprising four beams and four corner elements.
  • Each corner element connects two beams with each other.
  • the corner elements and supports are arranged and connected to one another in such a way that the supports and corner elements form a peripheral closed frame.
  • Each corner element has, in particular at least, one receptacle which is set up for connection to a vehicle body and/or to a link of a wheel suspension and/or to add-on parts of the vehicle.
  • the corner elements are preferably set up for articulated connection with one or more of said elements.
  • the frame formed by the carrier and corner elements is particularly preferably rectangular. All of the corner elements can preferably be identical in order to enable the axle support to be produced in a particularly simple and cost-effective manner.
  • the axle carrier can thus be adapted to different requirements in a particularly simple and cost-effective manner by adapting the carrier.
  • a width of the axle carrier can be increased by lengthening two opposite carriers, for example to provide an axle carrier for a vehicle with a larger track width.
  • a length of the axle support in the vehicle longitudinal direction can be optimally configured by prior adjustment of a length of two opposite carriers arranged in the vehicle longitudinal direction.
  • the corner elements can be retained the same for any size of the axle support.
  • the corner elements Due to the fact that the corner elements contain the receptacles that serve as connection points to the vehicle body and/or to the wheel suspension arms and/or to other add-on parts of the vehicle, a high degree of flexibility and scalability of the axle carrier can be provided in a particularly simple and cost-effective manner will.
  • the special structure of the axle support thanks to the special structure of the axle support, its design, production and assembly is possible in a particularly simple, time-saving and therefore cost-effective manner for different vehicle sizes. This has a particularly advantageous effect on the production of vehicles in small series, which, for example, cannot be derived from a platform base.
  • All carriers preferably have an identical cross-sectional geometry.
  • the carriers can preferably have a rectangular or alternatively an oval cross-sectional geometry.
  • all carriers are thus essentially identical and differ only in length.
  • the axle support can be manufactured particularly easily and inexpensively, since, for example, the support is in a common or identical Manufacturing step can be produced.
  • the axle carrier can be assembled particularly easily. For example, when the beams and corner members are assembled in the form of a rectangular frame, the two opposing beams can be made exactly identical, respectively. As a result, the carriers can be arranged quickly and easily relative to one another when the axle carrier is assembled.
  • Each carrier is particularly preferably a straight hollow tube. That is, each beam extends prismatically along a straight line and is hollow inside. Hollow tubes as supports offer the advantage, at particularly low cost, that high mechanical stability can be achieved with low weight.
  • the sockets of the corner elements protrude from the frame formed by the beams and the elements.
  • the supports form the frame with the respective base bodies of the corner elements, with the receptacles being designed as elements protruding from this frame.
  • the receptacles preferably protrude beyond the frame by at least 50% of the width of a carrier.
  • the carriers preferably have a non-round cross-section.
  • the carriers particularly preferably have a rectangular cross section.
  • the rectangular cross section can have rounded corners.
  • a non-circular, in particular rectangular, cross-section of the carrier means that a torsional moment can be transmitted between the carrier and the connected corner element by means of a form fit. This means that the torsional moment can be transmitted via the form fit between the support and the corner element, which means that lower demands are made on the mechanical strength of the connection between the support and the corner element. This has a further advantageous effect on low costs with high mechanical stability of the axle support.
  • the carrier and corner elements are preferably at least partially plugged into one another in order to enable the form fit in a simple manner.
  • the corner element is particularly preferably partially inserted into the carrier if this is designed as a hollow tube.
  • the carrier can be partially inserted in the corner element, in particular in a recess of the corner element, be plugged in. This also makes assembly easier and improves the mechanical stability of the axle carrier.
  • the carriers are designed as extruded components.
  • carriers with identical cross-sectional geometries in the form of straight hollow tubes can be produced particularly easily, quickly and inexpensively.
  • all of the carriers can be produced in that a single extruded component is produced, which is then divided into several parts, for example sawed, in order to obtain the individual carriers.
  • the corner elements are preferably designed as cast components.
  • the corner members can be made by gravity casting, or alternatively by die casting.
  • Particularly flexible shapes and configurations of the corner elements can be made possible by cast components at the corners of the frame in order to enable a large number of different requirements and purposes, such as for example different numbers of connection points in different vehicles.
  • the corner elements can also be screwed or welded, that is to say they can be formed, for example, from a plurality of components screwed or welded to one another.
  • the brackets and/or the corner members are formed from aluminum or an aluminum alloy to provide a strong and lightweight axle bracket.
  • all beams and corner elements are formed from the same material.
  • the carrier and corner elements are each connected to one another by means of welded connections and/or by means of adhesive connections and/or by means of screw connections.
  • Welded connections between supports and corner elements are particularly advantageous for a particularly strong and reliable connection.
  • the welded connections are particularly preferably laser welded connections.
  • the axle carrier also includes two wishbones, which are arranged on opposite sides of the frame. The wishbones are intended in particular for connection to steering knuckles on which wheels of the vehicle can be mounted. Each wishbone is connected to at least one receptacle of one of the corner elements.
  • each wishbone is connected to the two corner elements located on the same side of the frame by means of a respective receptacle.
  • the wishbone and the corner element are connected to one another in an articulated manner by means of the corresponding receptacle.
  • the wishbones are each connected to one or more of the carriers.
  • the axle carrier also includes two steering knuckles and a steering knuckle.
  • the Ackermann steering has two tie rods and an intermediate rod.
  • Each steering knuckle is connected to one of the wishbones, in particular at an end of the wishbone opposite the corner element.
  • Each tie rod is connected to one of the two steering knuckles.
  • the two steering knuckles are connected to each other by means of the intermediate rod.
  • the intermediate rod in particular offers the advantage that it can be designed differently for different applications.
  • intermediate rods of different lengths can be used in order, for example, to be able to provide an Ackermann steering that is correspondingly adapted to the variability of the design of the width of the axle carrier.
  • the axle carrier, including the Ackermann steering can be constructed and provided particularly simply and inexpensively for vehicles of different track widths.
  • the intermediate rod is preferably a straight hollow tube and is particularly preferably designed as an extruded component.
  • the intermediate rod can preferably be produced from the same tubular blank as the carrier, in order to enable the axle carrier to be produced in a particularly simple and cost-saving manner.
  • the invention leads to a vehicle, which is in particular a motor vehicle, preferably a passenger car.
  • vehicle includes a described axle carrier.
  • the vehicle can also have two such Axle supports comprise, or alternatively, in the case of more than two axles, several such axle supports.
  • the axle carrier is particularly preferably arranged on a front axle of the vehicle.
  • the axle carrier forms part of the front axle of the vehicle.
  • the axle support enables a particularly effective cost reduction for vehicles of different widths.
  • the corner elements of the axle support are preferably connected to a vehicle body and/or to add-on parts of the vehicle.
  • a vehicle body For example, an engine, a steering gear, a differential and/or other components can be regarded as add-on parts.
  • FIG. 1 shows a simplified schematic view of a vehicle with an axle support according to a preferred exemplary embodiment of the invention
  • FIG. 2 shows the axle support of the vehicle from FIG. 1 in detail.
  • FIG. 1 shows a simplified schematic view of a vehicle 10 with an axle support 1 according to a preferred exemplary embodiment of the invention.
  • the axle carrier 1 is not visible in FIG. 1 and its position in the vehicle 10 is only indicated schematically.
  • the axle support 1 is arranged on a front axle 20 of the vehicle 10 in the direction of travel A.
  • the axle carrier 1 or an additional second axle carrier 1 could also be arranged on a rear axle 25 of the vehicle 10 .
  • the axle carrier 1 of the vehicle 10 of FIG. 1 is shown in detail in FIG. 2, which shows a perspective view of the axle carrier 1.
  • FIG. 2 shows a perspective view of the axle carrier 1.
  • the axle support 1 comprises four supports 2 and four corner elements 3.
  • the four supports 2 are arranged in a rectangle and are connected by means of the four corner elements 3, which are each arranged at one corner of the rectangle.
  • the carriers 2 together with the corner elements 3 form a rectangular frame 4 that is closed all the way around.
  • the carriers 2 are designed as extruded components in the form of straight hollow tubes with a rectangular cross section. All carriers 2 have an identical cross-sectional geometry. As a result, the carriers 2 can be produced particularly easily and inexpensively, for example by being produced from a single extruded profile which is divided into a number of parts.
  • Two of the four carriers 2 each have the same length.
  • the two supports 2a which extend parallel to the direction of travel A and which can also be referred to as longitudinal supports 2a, are shorter than the two supports 2b arranged transversely to the direction of travel A, which can accordingly also be referred to as transverse supports 2b.
  • axle carriers 1 of different lengths and widths can also be provided in a simple manner in order to be able to be used, for example, for vehicles 10 with different track widths. Because simple, extruded hollow tubes are used as supports 2, axle supports 1 of different widths can be produced, for example, simply by using cross supports 2b of different lengths. As a result, axle carriers 1 of variable size can be provided in a particularly simple and cost-effective manner, without a tool having to be expensively adapted or newly manufactured, for example.
  • the beams 2 and the corner elements 3 are each connected to one another by means of welded connections 6 .
  • the welded joints 6 between the corner element 3 and the two adjacent beams 2 are identified by means of a reference number.
  • the corner elements 3 and the supports 2 are each partially plugged into one another.
  • the non-round, rectangular cross-section of the carrier 2 also results in the advantage that torsional moments can be transmitted between the carrier 2 and the corner elements 3 via a positive fit. This prevents the welded joints 6 from being heavily loaded due to the torsional moments.
  • Each of the corner elements 3 has a receptacle 31 which is set up for connection to the vehicle body 30 (not shown in FIG. 2).
  • the receptacles 31 protrude beyond a virtual rectangle formed by the carrier 2, so that the receptacles are particularly easy to access 31 is enabled.
  • the axle carrier 1 comprises a wheel suspension 50 and an Ackermann steering 7.
  • the wheel suspension 50 comprises two wishbones 5 which are arranged transversely to the direction of travel A on opposite sides of the frame 4, ie laterally next to the longitudinal members 2a.
  • Each wishbone 5 is connected to the receptacles 31 of the two corner elements 3 lying on the corresponding side.
  • the wishbones 5 are each connected to the receptacles 31 in an articulated manner such that they can rotate about a horizontal axis.
  • the wheel suspension 50 also includes two steering knuckles 8 which are each arranged on an end of the wishbone 5 opposite the frame 4 .
  • the steering knuckles 8 are designed to attach wheels of the vehicle 10.
  • Each steering knuckle 8 is connected to one of two tie rods 71 of the steering knuckle 7 .
  • the Ackermann steering 7 also includes an intermediate rod 72 which connects the two tie rods 71 to one another.
  • a rack and pinion drive for example, can be integrated into the intermediate rod 72, by means of which the tie rods 71 can be actuated in order to steer the wheels of the vehicle 10.
  • the intermediate rod 72 is in shape formed of an extruded hollow tube in order, similar to the carrier 2, to offer an inexpensive and simple way of adjusting the length in order to be able to provide the axle carrier 1 with different widths for vehicles 10 with different track widths.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne un support (1) d'essieu d'un véhicule (10), comportant quatre supports (2) et quatre éléments (3) d'angle, chaque élément (3) d'angle reliant deux supports (2) l'un à l'autre de telle manière que les supports (2) et les éléments (3) d'angle forment un cadre (4) circonférentiellement fermé, et chaque élément (3) d'angle présentant un réceptacle (31) qui est configuré pour être lié à une carrosserie (30) de véhicule et/ou à un bras (5) de commande d'une suspension de roue et/ou à des parties de fixation du véhicule (10).
PCT/EP2021/079202 2020-11-11 2021-10-21 Support d'essieu d'un véhicule WO2022100979A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020214156.8A DE102020214156A1 (de) 2020-11-11 2020-11-11 Achsträger eines Fahrzeugs
DE102020214156.8 2020-11-11

Publications (1)

Publication Number Publication Date
WO2022100979A1 true WO2022100979A1 (fr) 2022-05-19

Family

ID=78413994

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/079202 WO2022100979A1 (fr) 2020-11-11 2021-10-21 Support d'essieu d'un véhicule

Country Status (2)

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DE (1) DE102020214156A1 (fr)
WO (1) WO2022100979A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0784005A1 (fr) * 1996-01-12 1997-07-16 Alusuisse Technology & Management AG Carosserie pour véhicules à moteur avec fixation pour une jambe de suspension
DE602004002248T2 (de) * 2003-07-23 2007-08-23 Nissan Motor Co., Ltd., Yokohama Fahrzeuglenksystem
DE102011012118A1 (de) * 2011-02-23 2012-08-23 Daimler Ag Hilfsrahmen für eine Karosserie eines Kraftwagens
EP2944548A1 (fr) * 2014-05-15 2015-11-18 Jtekt Corporation Joint à rotule et dispositif de direction comprenant celui-ci
DE102018120416A1 (de) * 2017-08-23 2019-02-28 GM Global Technology Operations LLC Fahrzeugrahmenstruktur und verfahren zur montage mittels eines strukturklebstoffs
US20190366422A1 (en) * 2017-09-07 2019-12-05 Nsk Ltd. Rack and manufacturing method thereof, steering device, vehicle, and preforming die for manufacturing rack

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0784005A1 (fr) * 1996-01-12 1997-07-16 Alusuisse Technology & Management AG Carosserie pour véhicules à moteur avec fixation pour une jambe de suspension
DE602004002248T2 (de) * 2003-07-23 2007-08-23 Nissan Motor Co., Ltd., Yokohama Fahrzeuglenksystem
DE102011012118A1 (de) * 2011-02-23 2012-08-23 Daimler Ag Hilfsrahmen für eine Karosserie eines Kraftwagens
EP2944548A1 (fr) * 2014-05-15 2015-11-18 Jtekt Corporation Joint à rotule et dispositif de direction comprenant celui-ci
DE102018120416A1 (de) * 2017-08-23 2019-02-28 GM Global Technology Operations LLC Fahrzeugrahmenstruktur und verfahren zur montage mittels eines strukturklebstoffs
US20190366422A1 (en) * 2017-09-07 2019-12-05 Nsk Ltd. Rack and manufacturing method thereof, steering device, vehicle, and preforming die for manufacturing rack

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Publication number Publication date
DE102020214156A1 (de) 2022-05-12

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