EP3529095A1 - Befestigungseinrichtung für ein elektrisches kraftfahrzeug-antriebsaggregat - Google Patents
Befestigungseinrichtung für ein elektrisches kraftfahrzeug-antriebsaggregatInfo
- Publication number
- EP3529095A1 EP3529095A1 EP17780740.1A EP17780740A EP3529095A1 EP 3529095 A1 EP3529095 A1 EP 3529095A1 EP 17780740 A EP17780740 A EP 17780740A EP 3529095 A1 EP3529095 A1 EP 3529095A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive unit
- fastening device
- motor vehicle
- bearings
- cross member
- 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- Withdrawn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
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/09—Reducing noise
Definitions
- the invention relates to a fastening device for an electric drive unit to a body and / or on a chassis of a motor vehicle, according to the preamble of the first claim.
- DE 10 201 1 081 836 describes an electrically driven rear axle of a two-lane vehicle with the wheels associated drive shafts and an axle with several attached wheel-guiding links, wherein at least one electric motor is mounted on the axle and further comprising a elements for providing electrical energy for the electric motor Housing is attached to the axle or forms part of the axle carrier in the form of a body. At least one front and one rear, over the vehicle center plane, over a larger part of the vehicle width extending cross member are provided, are provided in the two end portions of bearings for connecting the axle to the vehicle body. This achieves a high torsional rigidity.
- the drive electric motor of the vehicle or the electric drive unit which may further comprise a gear downstream of the electric motor and a differential, also attached via elastic bearings on the axle according to the invention.
- three bearing points are provided for this purpose, two of which on one side of the drive unit, which faces one of the vehicle longitudinal sides, are spaced as far as possible from each other, so that these two bearings can best support the engine drive torque.
- the third bearing is preferably arranged on the other side of the drive unit as centrally as possible or near the center of gravity and designed in particular for receiving the weight forces, wherein when this third bearing is hydraulically damped, the natural oscillations of the electric drive unit relative to the axis are effectively limited can.
- a fastening device for fixing an electric drive unit installed transversely in a motor vehicle, via at least three bearings on the body and / or chassis, characterized in that one of these bearings on a cross member in the direction of travel before and two of these bearings on a another cross member in the direction of travel behind the drive unit.
- the fastening device for fixing an electric drive unit installed transversely in a motor vehicle, at least three bearing points on the body and / or chassis also be characterized in that two of these bearings on another cross member in the direction of travel and one of these bearings on a Cross members are located in the direction of travel behind the drive unit.
- the alternative of the first and the second claim results in a much improved crash structure with a softer structure, which increases the collision force absorption by deformation in the event of a collision.
- two bearings for the drive unit are provided in the rear area at the rear, another cross member
- the alternative of the second claim provides in front two bearings for the drive unit at the front, another cross member.
- the drive and storage network can thereby be made more stable, resulting in a significantly reduced vibration generation and thus less noise in the interior be transmitted.
- This concept has also due to the short mounting lever a very stiff drive and storage composite and thus acoustic benefits for the vehicle occupants, at the same time is provided by the additional cross member an additional, excellent energy-degrading crash structure for the electrical components.
- a preferred embodiment of the invention provides that a center of gravity of the drive unit lies in a plane in which the bearings are located.
- the drive unit which consists of at least one electric motor and a gearbox, is installed in the motor vehicle by means of elastic bearings mounted on the bearing points. It is particularly advantageous if the drive unit in the transverse direction of the motor vehicle is positioned so that a left and a right drive shaft have the same length.
- At least one bearing point is formed so that the bearing pin is directed in the vehicle longitudinal direction.
- the journals with their support arms are easy to perform as rigid as possible, to minimize the transmission of structure-borne sound between the drive unit and the body as little as possible.
- the support arms and journals are mechanically free Kragniz with additional masses at the free end, the resonance can increase the registered body sound in the body by more than a power of ten, it is advantageous to come out of the relevant frequency range for structure-borne noise and the support arm / journal resonance to raise more than 1000 hertz by the support arms are designed as short as possible and have a large connection surface to the motor housing, preferably designed as a closed box girder.
- This is also advantageous that drive noise from bending vibrations of rotating shafts, which are also introduced as structure-borne noise via the bearings in the body, are also damped.
- the single FIGURE shows a fastening device for fixing a motor vehicle drive unit 1, installed transversely in the rear of the motor vehicle, to drive not drawn drive shafts, connected with not shown rear wheels as rear-wheel drive for the motor vehicle.
- the drive unit 1 consists of electric motor 2 and gear 3 in a built housing 4, which is determined by means of vibration damping elements, on a body and / or on a chassis of the motor vehicle.
- the housing 4 has three support arms 5, 5 ', 5 ", which are as short as possible, in order to achieve the greatest possible stability, which are either cast on or flanged onto the housing 4 and are supported by invisible bearings.
- gerzapfen which can also be designed as screws, to the
- the fastening device for supporting the electric drive unit 1 consists of three bearings 6, 6 ', 6 "with built-in, non-visible elastic bearings, a 6" in the direction of travel (arrow 7) in front of the drive unit 1, on a cross member 8, here also the rear axle of the chassis, and two in the direction of travel 7 behind the drive unit 1, on a further cross member 9 of the chassis. Both cross members 8, 9 are attached to longitudinal members 10, 1 1 of the body.
- the drive unit 1 is installed between the cross member 8 and the further cross member 9 such that a not shown center of gravity of the drive unit 1 lies in a virtual plane, not shown, in which the three bearing points 6, 6 ', 6 "are located the drive unit 1 in the vehicle transverse direction (double arrow 13) positioned so that the two not shown drive shafts left and right, to the non-illustrated rear wheels in the wheel arches 12 extending, have the same length.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016220737.7A DE102016220737A1 (de) | 2016-10-21 | 2016-10-21 | Befestigungseinrichtung für ein elektrisches Kraftfahrzeug-Antriebsaggregat |
DE102016220739.3A DE102016220739A1 (de) | 2016-10-21 | 2016-10-21 | Befestigungseinrichtung für ein elektrisches Fahrzeug-Antriebsaggregat |
PCT/EP2017/075559 WO2018073027A1 (de) | 2016-10-21 | 2017-10-06 | Befestigungseinrichtung für ein elektrisches kraftfahrzeug-antriebsaggregat |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3529095A1 true EP3529095A1 (de) | 2019-08-28 |
Family
ID=60037612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17780740.1A Withdrawn EP3529095A1 (de) | 2016-10-21 | 2017-10-06 | Befestigungseinrichtung für ein elektrisches kraftfahrzeug-antriebsaggregat |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3529095A1 (de) |
WO (1) | WO2018073027A1 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3613088B2 (ja) * | 1999-09-10 | 2005-01-26 | 日産自動車株式会社 | 車両用駆動ユニット支持装置 |
DE102011081836A1 (de) | 2011-08-30 | 2013-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Elektrisch angetriebene Achse eines zweispurigen Fahrzeugs |
DE102012025371B4 (de) * | 2012-12-28 | 2016-09-01 | Volkswagen Aktiengesellschaft | Kraftfahrzeug |
JP6071848B2 (ja) * | 2013-11-07 | 2017-02-01 | 本田技研工業株式会社 | 電動車両 |
DE102014219292A1 (de) * | 2014-09-24 | 2016-03-24 | Bayerische Motoren Werke Aktiengesellschaft | Fahrzeug mit bedämpftem Achsträger bzw. Achsgetriebe |
-
2017
- 2017-10-06 EP EP17780740.1A patent/EP3529095A1/de not_active Withdrawn
- 2017-10-06 WO PCT/EP2017/075559 patent/WO2018073027A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
WO2018073027A1 (de) | 2018-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20190430 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: FRENZEL, MORITZ Inventor name: KUESSEL, YVONNE Inventor name: LIPOT, NORBERT Inventor name: HUEBNER, BERNHARD Inventor name: MACIA FERNANDEZ, MARIA AMPARO Inventor name: THAMM, EDUARDO |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20200103 |