EP3953196A1 - Achslenker für eine radaufhängung - Google Patents
Achslenker für eine radaufhängungInfo
- Publication number
- EP3953196A1 EP3953196A1 EP20712318.3A EP20712318A EP3953196A1 EP 3953196 A1 EP3953196 A1 EP 3953196A1 EP 20712318 A EP20712318 A EP 20712318A EP 3953196 A1 EP3953196 A1 EP 3953196A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- line
- electrical
- wishbone
- arm
- axle
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- 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
- B60G2204/10—Mounting of suspension elements
- B60G2204/20—Mounting of accessories, e.g. pump, compressor
- B60G2204/202—Mounting of accessories, e.g. pump, compressor of cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/012—Hollow or tubular elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/02—Trucks; Load vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/14—Buses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/50—Electric vehicles; Hybrid vehicles
Definitions
- the invention relates to a wishbone for a wheel suspension in an electrically driven enclosed motor vehicle, in particular in a commercial vehicle (z. B. truck, bus).
- Electrically driven utility vehicles are known from the prior art, in which an electric drive motor is integrated into an axle.
- the electric drive motor is fed with electrical energy by an inverter, the inverter being connected to the electric drive motor via three electrical lines with a voltage level of, for example, 380V.
- the problem here is that the electric drive motor executes a movement relative to the inverter while the vehicle is in motion, for example by compressing and rebounding the axle, this relative movement having to be retracted by the electrical cables.
- Another problem is that the electrical lines between the inverter and the electrical drive motor in the area of the wheel suspension are prone to contamination and damage.
- the invention is therefore based on the object of solving these problems of routing the electrical lines between the inverter and the electrical drive motor.
- the invention comprises the general technical teaching of using an axle control arm (e.g. trailing arm, wishbone) of a wheel suspension that is required anyway as a line guide for the electrical lines.
- the axle guide according to the invention therefore has a line guide to guide at least one electric line along the axle guide, the electric line being used to supply power to an electric drive motor of the motor vehicle.
- the invention is not limited to certain types of motor vehicles.
- the motor vehicle is preferably a utility vehicle, such as a truck or a bus.
- the invention is not limited to the trailing arm or wishbone already mentioned above by way of example. Rather, the Implement the invention with four-point links or handlebar stabilizers, to name just a few more direct examples.
- the line routing in the axle control arm is designed to accommodate at least three electrical lines, which is particularly useful when the electrical drive motor is a synchronous motor or an asynchronous motor that is supplied with power by a three-phase network .
- the invention is not limited to Wech selstrommotoren in terms of the type of electric drive motor, but basically also realizable with DC motors, which are then supplied with power by two electric cables.
- the wishbone is hollow and has a continuous interior in the longitudinal direction, which forms the line routing.
- the electrical lines run here in the interior of the hollow wishbone. This is advantageous because the electrical lines are then completely protected from dirt or damage.
- the axle guide can have any cross-section.
- the wishbone preferably has a round or rectangular cross section.
- the electrical lines must be led out of the steering arm again near the pivot points of the steering arm.
- an electrical through-hole contacting is provided near the hinge points, which contacts the internal electrical lines and provides an electrical connection on the outside of the steering arm.
- the electrical line then runs protected between the two plated-through holes in the interior of the hollow axle carrier. Further electrical lines can then be connected to the vias, which then run outside the steering arm.
- the steering arm has a cable bushing near the hinge points, which in the simplest case consists of an opening in the wall of the steering arm, so that the electrical lines can be led into the steering arm or out of the steering arm .
- the plated-through hole or the line bushing is in the vicinity the pivot points of the steering arm is arranged.
- This preferably means that the distance between the hinge points and the closest plated-through hole or line bushing is less than 30%, 20%, 10% or 5% of the length of the respective axle guide.
- Another advantage of being guided near or over the hinge point is less movement in the electrical lines.
- the electrical lines run in the interior of the hollow wishbone.
- a longitudinal groove is arranged in the outer surface of the steering arm, which runs in the longitudinal direction of the steering arm and forms the line guide and which receives at least one electrical line.
- the cross-section of the steering arm can be adapted accordingly and in sections it can be U-shaped, V-shaped, star-shaped (e.g. with three points) or double-T-shaped, to name just a few examples.
- axle guide is manufactured using an additive manufacturing process, specifically together with the line and the insulation of the electrical cable.
- the steering arm does not have to have any cavities through which the electrical cables can then be routed.
- the wishbone, together with the line and the insulation of the electrical line is manufactured largely void-free and as a single component as part of the additive manufacturing process.
- the line routing not only receives at least one electrical line, but also a cooling line for cooling the electrical line.
- the cooling line can consist of a cooling line that a cooling fluid leads, which is passed through the cooling line. The electrical heat loss occurring during operation in the electrical lines is then dissipated by the cooling fluid in the cooling line.
- This cooling line can in principle also be used to lead the cooling fluid (eg cooling water) to the electric drive motors in order to cool them.
- This motor vehicle according to the invention can, for example, be a utility vehicle, such as a truck or a bus.
- the motor vehicle has an axle, in particular a rigid axle.
- the axle of the motor vehicle is preferably equipped with at least one electric drive motor, in particular with a left drive motor for the left axle side and a right drive motor for the right axle side.
- the wheel suspension of the motor vehicle can be of conventional mechanical construction and, for example, have two trailing arms and a wishbone.
- one trailing arm of the wheel suspension leads the electrical line for one electric drive motor, while the other trailing arm leads the electrical lines for the other electric drive motor.
- the trailing arm on the left side of the vehicle can lead the electric line that leads to the electric drive motor for the left side of the vehicle, while the trailing arm on the right side of the vehicle leads the electric line that leads to the electric drive motor for the right side of the vehicle.
- one of the two trailing arms leads the electrical lines for the two electrical drive motors.
- the two legs of the wishbone each hold the electrical lines for one of the two drive motors.
- one of the two legs of the wishbone leads the electrical lines for one electric drive motor, while one of the two trailing arms leads the electric lines for the other electric drive motor.
- the electric drive motor can be, for example, a synchronous motor or an asynchronous motor, which have a three-phase power supply.
- the line guides then accordingly have at least three electrical lines.
- the drive motors are preferably each mounted on an axle and are supplied by an inverter which is mounted on the chassis, so that during operation, due to the compression and rebound of the axle, a relative movement occurs between the drive motors and the inverter, which - as already mentioned - has to be traced by electrical lines.
- the inverters can be mounted on a cross member of a lead frame of the utility vehicle.
- the invention is not limited to a specific voltage level.
- the nominal voltage of the electric drive motors and the electric lines is preferably significantly higher than the normal on-board network voltage of motor vehicles, which is in the range of 12V.
- the nominal voltage of the electric drive motors and the electrical cables can be at least 48V, at least 380V or at least 660V.
- Figure 1 is a perspective view of a wheel suspension of a commercial vehicle with an integrated line guide
- FIG. 2 a modification of FIG. 1,
- Figure 3 is a schematic plan view of a modified wheel suspension with an integrated line routing
- FIG. 4 a modification of FIG. 3
- Figure 5 is a schematic representation of a wishbone with an integrated line routing
- FIG. 6A-6G schematic cross-sectional views through a Achslen ker according to the invention with an integrated line routing.
- FIG. 1 shows a perspective view of a wheel suspension of a commercial vehicle (e.g. truck) in the area of an axle 1 with an integrated electric drive motor 2.
- a commercial vehicle e.g. truck
- the wheel suspension is largely of conventional design and has a plurality of air springs 4-7 as well as a wishbone 8 and two trailing arms 9, 10 below a ladder frame 3.
- the electric drive motor 2 is fed by three electric lines 11 from an inverter 12, which is only shown schematically here and is mounted on the chassis.
- the special feature of this wheel suspension according to the invention is that the electric lines 11 are passed through one leg of the wishbone 8.
- the water leg of the wishbone 8 is made hollow and takes the electrical line 11 in its interior.
- the electrical lines 11 are protected from dirt or damage caused by foreign objects.
- FIG. 2 shows a modification of FIG. 1, which largely corresponds to the exemplary embodiment according to FIG. 1, so that reference is made to the above description to avoid repetition, the same reference characters being used for corresponding details.
- a special feature of this exemplary embodiment is that the electrical lines 11 are not passed through the wishbone 8, but rather through the trailing arm 9.
- FIGS. 3 and 4 show further modifications of the wheel suspension according to FIGS. 1 and 2, so that in order to avoid repetitions reference is made to the above description, the same reference symbols being used for corresponding details.
- a special feature of the exemplary embodiments according to FIGS. 3 and 4 is that two electric drive motors 2.1, 2.2 are integrated into the axle 1, which are each fed by an inverter 12.1 and 12.2.
- the inverter 12.1 is in this case by electrical lines 1 1.1 connected to the electric drive motor 2.1.
- the inverter 12.2 is connected to the drive motor 2.2 via electrical lines 1 1.2.
- the electrical lines 11.1 run through the leg 8.1 of the wishbone 8, while the electrical lines 1 1.2 run through the other leg 8.2 of the wishbone 8.
- the electrical lines 1 1.1, 1 1.2 are here distributed over the two legs 8.1, 8.2 of the triangular link 8.
- the electrical lines 11.1 run through the trailing arm 9, while the other electrical lines 11.2 run through the limb 8.2 of the triangular arm 8.
- FIG. 5 shows a schematic illustration of the wishbone 8 with the two legs 8.1, 8.2 in the exemplary embodiment according to FIG. 3.
- the wishbone 8 has articulation points 13-15 at which the wishbone 8 is articulated in the wheel suspension, as is known per se from the prior art.
- the electric line 11.1 here runs in the interior of the hollow leg 8.1, while the other electric lines 11.2 run in the other leg of the wishbone.
- the two legs 8.1, 8.2 each have line bushings 16-19, which consist of wall openings in the legs 8.1, 8.2.
- FIGS. 6A-6G show schematic cross-sectional views of different embodiments of axle links 20 according to the invention, each of which takes three electrical lines 21.
- the wishbone 20 is star-shaped in cross section, while the wishbone 20 in the exemplary embodiment according to FIG. 6C is double-T-shaped.
- the wishbone 20 has only a single longitudinal groove 22 which receives all three electrical lines 21.
- the wishbone 20 is U-shaped in cross section, while the wishbone 20 in the exemplary embodiment according to FIG. 6E has a V-shaped section.
- the wishbone 20 is designed to be hollow and contains an interior 23 which accommodates all three electrical lines 21 together.
- FIG. 6G shows a cross-sectional view through an axle guide 20 which is produced by an additive manufacturing process together with conductors 24 and insulation 25 of the electrical lines 21.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019109177.2A DE102019109177A1 (de) | 2019-04-08 | 2019-04-08 | Achslenker für eine Radaufhängung |
| PCT/EP2020/057290 WO2020207722A1 (de) | 2019-04-08 | 2020-03-17 | Achslenker für eine radaufhängung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3953196A1 true EP3953196A1 (de) | 2022-02-16 |
Family
ID=69846123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20712318.3A Withdrawn EP3953196A1 (de) | 2019-04-08 | 2020-03-17 | Achslenker für eine radaufhängung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3953196A1 (de) |
| CN (1) | CN113272162A (de) |
| DE (1) | DE102019109177A1 (de) |
| WO (1) | WO2020207722A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020212625A1 (de) * | 2020-10-06 | 2022-04-07 | Faserinstitut Bremen E.V. | Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs |
| DE102022117576B4 (de) * | 2022-07-14 | 2024-07-25 | Daimler Truck AG | Fahrwerk für ein Nutzfahrzeug |
| DE102022212088A1 (de) * | 2022-11-15 | 2024-05-16 | Volkswagen Aktiengesellschaft | Fahrwerksbauteil einer Radaufhängung für ein Kraftfahrzeug und Verfahren zu dessen Herstellung |
| IT202300003756A1 (it) * | 2023-03-02 | 2024-09-02 | Ferrari Spa | Sospensione di autoveicolo con condotti integrati |
| DE102023204446A1 (de) | 2023-05-12 | 2024-11-14 | Zf Friedrichshafen Ag | Lenkeranordnung für ein Fahrzeug |
| DE102023128425A1 (de) | 2023-10-17 | 2025-04-17 | Karlsruher Institut für Technologie, Körperschaft des öffentlichen Rechts | Achslenker |
| FR3154962A1 (fr) * | 2023-11-08 | 2025-05-09 | Renault S.A.S | Train arrière de véhicule automobile électrique |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3424806A1 (de) * | 2017-07-04 | 2019-01-09 | MAN Truck & Bus Österreich GesmbH | Schwenkvorrichtung für ein fahrerhaus |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06278433A (ja) * | 1993-03-26 | 1994-10-04 | Suzuki Motor Corp | サスペンションの配線構造 |
| DE19738249A1 (de) * | 1997-09-02 | 1999-03-11 | Daimler Benz Ag | Lenker, insbesondere für eine Radaufhängung eines Kraftfahrzeuges |
| JP2000055106A (ja) * | 1998-08-03 | 2000-02-22 | Honda Motor Co Ltd | 車高調整機能付きダンパ |
| JP3571302B2 (ja) * | 2001-02-05 | 2004-09-29 | 独立行政法人 科学技術振興機構 | サスペンション部の配線構造 |
| DE10121372A1 (de) * | 2001-05-02 | 2002-11-07 | Krauss Maffei Wegmann Gmbh & C | Allradangetriebenes Kraftfahrzeug, insbesondere militärisches Kraftfahrzeug, mit dieselelektrischer Antriebsvorrichtung |
| DE10153799A1 (de) * | 2001-11-05 | 2003-05-15 | Zf Lemfoerder Metallwaren Ag | Kraftverbindungsstrebe |
| FR2835024B1 (fr) * | 2002-01-18 | 2004-07-02 | Cf Gomma Spa | Bras, ou bielle, de liaison et son procede de fabrication |
| DE20206821U1 (de) * | 2002-04-29 | 2003-09-11 | Liebherr-Werk Biberach GmbH, 88400 Biberach | Fahrantrieb für Lastkraftwagen |
| US7273117B2 (en) * | 2003-05-15 | 2007-09-25 | General Dynamics Land Systems, Inc. | Vehicle suspension apparatus |
| US7270346B2 (en) * | 2004-09-27 | 2007-09-18 | Oshkosh Truck Corporation | Vehicle frame |
| DE102008053300A1 (de) * | 2008-10-27 | 2010-05-06 | Leiber Group Gmbh & Co. Kg | Zug- und Druckstange mit besonderem Querschnitt, insbesondere für den Einsatz als Quer- oder Längslenker für eine Fahrzeugachse |
| WO2011095152A2 (de) * | 2010-02-07 | 2011-08-11 | Ksm Castings Gmbh | Achsmodul |
| CN103442918B (zh) * | 2011-03-09 | 2017-05-10 | 沃尔沃拉斯特瓦格纳公司 | 轮毂马达设备 |
| DE102011080037A1 (de) * | 2011-07-28 | 2013-01-31 | Zf Friedrichshafen Ag | Fahrzeugachse für ein Kraftfahrzeug |
| DE102012013149A1 (de) * | 2012-07-03 | 2014-01-09 | Zf Friedrichshafen Ag | Kraftfahrzeug mit Fahrzeugrahmen und Gelenkanordnung |
| JP2015000688A (ja) * | 2013-06-17 | 2015-01-05 | 矢崎総業株式会社 | 電線の配索構造 |
| JP6307919B2 (ja) * | 2013-11-13 | 2018-04-11 | 三菱自動車工業株式会社 | 車両における高圧電線の配設構造 |
| JP6313620B2 (ja) * | 2013-12-11 | 2018-04-18 | Ntn株式会社 | インホイールモータ駆動装置の電力線保護構造 |
| DE102016100666A1 (de) * | 2016-01-15 | 2017-07-20 | Benteler Automobiltechnik Gmbh | Federlenker aus Stahl |
| DE202017100165U1 (de) * | 2016-12-02 | 2017-03-20 | Ford Global Technologies, Llc | Querlenker für eine Radaufhängung eines Fahrzeugs |
| CN207388774U (zh) * | 2017-10-09 | 2018-05-22 | 南京金龙客车制造有限公司 | 一种新能源车型悬架中连接件结构 |
-
2019
- 2019-04-08 DE DE102019109177.2A patent/DE102019109177A1/de active Pending
-
2020
- 2020-03-17 WO PCT/EP2020/057290 patent/WO2020207722A1/de not_active Ceased
- 2020-03-17 CN CN202080008172.7A patent/CN113272162A/zh active Pending
- 2020-03-17 EP EP20712318.3A patent/EP3953196A1/de not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3424806A1 (de) * | 2017-07-04 | 2019-01-09 | MAN Truck & Bus Österreich GesmbH | Schwenkvorrichtung für ein fahrerhaus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020207722A1 (de) | 2020-10-15 |
| CN113272162A (zh) | 2021-08-17 |
| DE102019109177A1 (de) | 2020-10-08 |
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