EP3853054A1 - Antriebsvorrichtung für eine elektrisch angetriebene achse eines kraftfahrzeugs - Google Patents
Antriebsvorrichtung für eine elektrisch angetriebene achse eines kraftfahrzeugsInfo
- Publication number
- EP3853054A1 EP3853054A1 EP19773758.8A EP19773758A EP3853054A1 EP 3853054 A1 EP3853054 A1 EP 3853054A1 EP 19773758 A EP19773758 A EP 19773758A EP 3853054 A1 EP3853054 A1 EP 3853054A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- planetary gear
- gear set
- transmission
- electrically driven
- differential
- 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- Withdrawn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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
-
- 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
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- 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
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/14—Trucks; Load vehicles, Busses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/42—Clutches or brakes
- B60Y2400/424—Friction clutches
- B60Y2400/4244—Friction clutches of wet type, e.g. using multiple lamellae
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/70—Gearings
- B60Y2400/73—Planetary gearings
Definitions
- the present invention relates to a drive device for an electrically driven axle of a motor vehicle according to the preamble of patent claim 1.
- axles which are electrically driven by means of electrical machines and which have one or two gear stages in the case of light and medium-weight buses and trucks, the two-stage electrically driven axles being switchable.
- Electrical machines are generally operated at high speeds, for example between 10,000 and 20,000 rpm, in order to achieve optimum efficiency.
- high speed level in the electrically driven axles of a motor vehicle for vehicles, multi-stage transmissions are required, which must be made as compact as possible for reasons of installation space.
- an electrically driven vehicle with a vehicle chassis and vehicle axles, which are connected to the chassis via links, with each drive wheel associated with individual wheel drive and with each drive wheel associated brake actuation is known.
- the respective independent wheel drive is arranged in front of or behind the drive wheel in the direction of travel of the vehicle and is connected to the drive wheel via a spur gear chain, the housing of the spur gear chain forming part of the suspension of the axle carrying the drive wheel as a torsion beam link.
- the electric motors drive each via a spur gear chain consisting of four externally toothed gears to a planetary gear stage, which is arranged coaxially to the wheel axis of rotation.
- WO 12007829 A2 discloses an axle arrangement with a motor, a differential arrangement, a housing, a gear and a reduction gear set, the gear having a first and a second Includes planetary gear set, the planetary gear sets comprising associated (ie first and second) ring gears, planet carriers and sun gears.
- the first planet carrier is coupled to a differential carrier of the differential arrangement for a common rotation
- the second ring gear being coupled in a rotationally fixed manner
- the second planet carrier being coupled to the second differential output for a common rotation
- the second sun gear is coupled to the first sun gear for common rotation.
- the reduction gear set is disposed between an output shaft of the motor and the first ring gear and includes a first gear that is coupled to the output shaft for common rotation and a second gear that is coupled to the first ring gear for common rotation is.
- the present invention has for its object to provide a drive device for an electrically driven axle of a motor vehicle.
- a drive device for an electrically driven axle of a motor vehicle which has at least one electric machine and a switchable transmission which is connected downstream of the at least one electric machine in the direction of power flow during train operation and which is coupled to a differential for distributing the drive torque to the wheels of the axle is, the transmission having a first and a second planetary gear set, which can be designed as minus or plus planetary gear sets, which are connected in series, each comprising a ring gear, a sun gear and a web, the drive of the gear Drive takes place via an external toothing of the ring gear of the first planetary gear set, the output of the first planetary gear set takes place via the web which is rotatably connected to the sun gear of the second planetary gear set, the sun gear of the first planetary gear set being releasable to a housing via a first switching element r can be coupled, the ring gear of the second planetary gear set is coupled to a housing and the output of the transmission takes place via the web of the second planetary gear
- the second shifting element can be designed as a shifting element, by the closing of which the sun gear of the first planetary gear set can be detachably connected in a rotationally fixed manner, or by the closing of which the sun gear of the first planetary gear set can be detachably rotatably connected to the ring gear, or by closing it the ring gear of the first planetary gear set can be detachably and non-rotatably connected to the web.
- the external toothing of the ring gear of the first planetary gear set, in which a correspondingly designed drive pinion of the at least one electric machine engages, is preferably designed as helical toothing.
- the ring gear of the first planetary gear set which according to the invention is externally toothed, is double-mounted on the web by two bearings, which are each arranged axially at the ends of the ring gear.
- the ring gear is stabilized with regard to the radial forces which are generated by the first transmission stage, namely the transmission stage of the first planetary gear set.
- an oval deformation of the ring gear is prevented, whereby axial forces resulting from the helical toothing of the ring gear are absorbed.
- the at least one electric machine, the transmission and the differential are arranged in a row transversely to the longitudinal direction of the vehicle, which is also made possible by the compact axial construction of the transmission, the transmission and the differential being concentric an output shaft of the differential are arranged such that the output shaft of the differential is guided through the transmission to a wheel of the electrically driven axle.
- two electric machines are provided, these are preferably arranged one behind the other, viewed in the vehicle longitudinal direction, on one side of the output shaft of the differential, the longitudinal axes of which run parallel to the output shaft of the differential.
- an electric machine is provided, its longitudinal axis runs parallel to the output shaft of the differential.
- the transmission preferably has two gears.
- the first gear of the transmission is switched by closing the first switching element and coupling the sun gear of the first planetary gear set to the housing, the second gear being realized by closing the second switching element and thus blocking the first planetary gear set.
- the reverse gears are realized by reversing the direction of rotation of the at least one electric machine.
- the clutches can be designed as multi-plate clutches, so that the transmission can be shifted fully under load. If the clutch for the first gear is designed as a claw and the clutch for the second gear as a multi-plate clutch, pull-shifts can be powershifted. If both clutches are designed as claws, they can only be switched with an interruption in tractive power.
- the design according to the invention provides a drive device for an electrically driven axle of a motor vehicle in a simple and inexpensive manner, which enables a very compact design in the longitudinal direction of the vehicle.
- Figure 1 A schematic representation of an embodiment of the invention
- Figure 2 A schematic representation to illustrate the double bearing of the externally toothed ring gear of the first planetary gear set of the transmission.
- a drive device 1 for an electrically driven axle of a motor vehicle has two electric machines EM1, EM2 and a switchable transmission 2 which is connected downstream of the electric machines EM1, EM2 in the direction of power flow during train operation and which is connected to a differential 3 is coupled to the distribution of the drive torque on the wheels 4 of the axis 5.
- the transmission 2 here has a first and a second minus planetary gear set 6, 7, which are connected in series, each comprising a ring gear, a sun gear and a carrier, the drive of the transmission 2 via an external toothing of the ring gear 8 of the first planetary gear set 6, the output of the first planetary gear set 6 taking place via the web 9, which is connected to the sun gear 11 of the second planetary gear set 7 in a rotationally fixed manner.
- a correspondingly designed drive pinion 17, 18 of the electric machines EM1, EM2 engages in the external toothing of the ring gear 8 of the first planetary gear set 6, which is preferably designed as a helical toothing.
- the sun gear 10 of the first planetary gear set 6 can be detachably coupled to a housing G via a first switching element 14, the ring gear 12 of the second planetary gear set being coupled to a housing G and the output of the transmission 2 via the web 13 of the second planetary gear set 7.
- a second switching element 15 is provided, by closing the first planetary gear set 6.
- the second switching element is designed as a switching element, by the closing of which the sun gear 10 of the first planetary gear set 6 can be detachably and non-rotatably connected to the web 9.
- the electrical machines EM1, EM2 viewed in the longitudinal direction of the vehicle, are one behind the other on one side of an output shaft 16 of the differential 3 arranged, the longitudinal axes of which run parallel to the output shaft 16 of the differential 3. Furthermore, the electrical machines EM1, EM2 (considered as one unit), the transmission 2 and the differential 3 are arranged in series transversely to the longitudinal direction of the vehicle, the transmission 2 and the differential 3 being arranged concentrically to the output shaft 16 of the differential 3.
- the web 9, 13 and the sun gear 10, 11 of the first and second planetary gear sets 6, 7 are made hollow, so that the output shaft 16 of the differential 3 is guided through the gear 2 to a wheel 4 of the electrically driven axle 5 .
- the flute wheel 8 of the first planetary gear set 6 of the transmission 2 which is externally toothed according to the invention, is on the web 9 by two radial bearings 19, 20, which are each viewed axially at the ends of the flute wheel 8 of the first planetary gear set 6 mounted twice. Characterized the Flohlrad 8 is stabilized with respect to the radial forces that are generated by the gear ratio of the first planetary gear set 6.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Arrangement Of Transmissions (AREA)
- Motor Power Transmission Devices (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018215918.1A DE102018215918A1 (de) | 2018-09-19 | 2018-09-19 | Antriebsvorrichtung für eine elektrisch angetriebene Achse eines Kraftfahrzeugs |
| PCT/EP2019/074787 WO2020058235A1 (de) | 2018-09-19 | 2019-09-17 | Antriebsvorrichtung für eine elektrisch angetriebene achse eines kraftfahrzeugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3853054A1 true EP3853054A1 (de) | 2021-07-28 |
Family
ID=68062900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19773758.8A Withdrawn EP3853054A1 (de) | 2018-09-19 | 2019-09-17 | Antriebsvorrichtung für eine elektrisch angetriebene achse eines kraftfahrzeugs |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11780328B2 (de) |
| EP (1) | EP3853054A1 (de) |
| CN (1) | CN112752666A (de) |
| DE (1) | DE102018215918A1 (de) |
| WO (1) | WO2020058235A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11554663B2 (en) * | 2018-09-11 | 2023-01-17 | Volvo Construction Equipment Ab | Wheel hub drive system |
| DE102018221824A1 (de) * | 2018-12-14 | 2020-06-18 | Zf Friedrichshafen Ag | Zahnradanordnung für Elektrofahrzeuggetriebe |
| CN112644262B (zh) * | 2021-01-07 | 2024-06-18 | 中国重汽集团济南动力有限公司 | 一种带轮边减速器双电机电驱动桥 |
| CZ202178A3 (cs) | 2021-02-21 | 2022-08-31 | Advanced Design Solution s.r.o. | Elektrický pohonný modul pro pohon nápravy |
| EP4079551A1 (de) * | 2021-04-23 | 2022-10-26 | Volvo Truck Corporation | Elektrischer antriebsstrang für ein fahrzeug |
| CN113022227B (zh) * | 2021-04-27 | 2022-06-07 | 吉林大学 | 一种多模式双电机耦合电动驱动桥 |
| DE102021133268A1 (de) * | 2021-12-15 | 2023-06-15 | Schaeffler Technologies AG & Co. KG | Elektrischer Antrieb eines Fahrzeuges |
| US12584547B2 (en) * | 2023-09-22 | 2026-03-24 | Dana Automotive Systems Group, Llc | Multi-speed electric axle |
| US12384233B1 (en) * | 2024-08-29 | 2025-08-12 | Fca Us Llc | Differential for electric drive module with dual coaxial motors and clutch disconnect |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59800796D1 (de) | 1997-03-12 | 2001-07-05 | Zahnradfabrik Friedrichshafen | Antriebsanordnung, insbesondere für omnibusse |
| JP3641243B2 (ja) * | 2002-02-26 | 2005-04-20 | 日産自動車株式会社 | ハイブリッド変速機 |
| US6978853B2 (en) * | 2003-07-30 | 2005-12-27 | Arvinmeritor Technology Llc | Axle assembly with parallel mounted electric motors |
| KR100771961B1 (ko) * | 2006-09-11 | 2007-11-01 | 우영유압주식회사 | 오르막 경사로 밀림방지용 단순구조 트랜스미션 내장형액슬장치 |
| JP4973165B2 (ja) * | 2006-12-08 | 2012-07-11 | トヨタ自動車株式会社 | 車両用駆動装置の制御装置 |
| US8112192B2 (en) * | 2007-11-04 | 2012-02-07 | GM Global Technology Operations LLC | Method for managing electric power within a powertrain system |
| US8663051B2 (en) | 2010-07-14 | 2014-03-04 | E-Aam Driveline Systems Ab | Axle assembly with torque distribution drive mechanism |
| JP2012082930A (ja) * | 2010-10-14 | 2012-04-26 | Toyota Motor Corp | 電気自動車用駆動装置 |
| WO2012117623A1 (ja) * | 2011-02-28 | 2012-09-07 | アイシン・エィ・ダブリュ株式会社 | 電動車両用駆動装置 |
| DE102011005531B4 (de) * | 2011-03-15 | 2023-12-14 | Zf Friedrichshafen Ag | Hybridantrieb eines Kraftfahrzeuges |
| DE112011102477T5 (de) * | 2011-03-31 | 2013-05-02 | Aisin Aw Co., Ltd. | Antriebsvorrichtung für ein Elektrofahrzeug |
| DE102012212268B4 (de) * | 2012-07-13 | 2021-02-18 | Schaeffler Technologies AG & Co. KG | Antriebssystem für eine Elektrische Achse mit Zwei-Gang-Getriebe |
| JP6137702B2 (ja) * | 2012-12-05 | 2017-05-31 | 本田技研工業株式会社 | 車両用動力伝達装置 |
| US8998764B2 (en) * | 2013-03-13 | 2015-04-07 | E-Aam Driveline Systems Ab | Drive module having planetary transmission with nested ring gears |
| JP6135418B2 (ja) * | 2013-09-13 | 2017-05-31 | トヨタ自動車株式会社 | ハイブリッド車両用動力伝達装置 |
| DE112015006341A5 (de) * | 2015-03-20 | 2018-01-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Elektrischer achsantrieb für ein kraftfahrzeug |
| DE102015217521A1 (de) | 2015-09-14 | 2017-03-16 | Siemens Aktiengesellschaft | Antriebseinrichtung für ein Kraftfahrzeug, insbesondere ein Elektro- oder Hybrid-Fahrzeug |
| DE102015016939A1 (de) * | 2015-12-24 | 2017-06-29 | Daimler Ag | Antriebsstrangvorrichtung mit einem Elektromotor |
| DE102016217550B4 (de) * | 2016-09-14 | 2018-08-23 | Magna powertrain gmbh & co kg | Verfahren zur verbesserung der fahrdynamik eines fahrzeugs sowie zur durchführung des verfahrens geeignete antriebsvorrichtung |
| US10253857B2 (en) * | 2017-01-31 | 2019-04-09 | Dana Heavy Vehicle Systems Group, Llc | Multi-speed electric transaxle unit with co-axial shafts |
| US11433765B2 (en) * | 2017-02-22 | 2022-09-06 | Dana Heavy Vehicle Systems Group, Llc | Commercial vehicle with electric driven axle |
| WO2018156676A2 (en) * | 2017-02-22 | 2018-08-30 | Dana Heavy Vehicle Systems Group, Llc | Continuously variable electric axles with on-demand energy harvesting capabilities for secondary or tag e-axles |
| CN106965659B (zh) * | 2017-04-21 | 2023-05-09 | 吉林大学 | 一种带有转矩定向分配功能的双电机耦合驱动桥 |
| CN106965661B (zh) * | 2017-04-21 | 2023-04-07 | 吉林大学 | 一种带有转矩定向分配功能的双电机耦合驱动桥 |
| WO2018222993A1 (en) * | 2017-06-02 | 2018-12-06 | Dana Heavy Vehicle Systems Group, Llc | Electric drive unit assembly |
| JP6518722B2 (ja) * | 2017-06-19 | 2019-05-22 | 本田技研工業株式会社 | 動力装置の支持構造 |
| JP2019189051A (ja) * | 2018-04-25 | 2019-10-31 | トヨタ自動車株式会社 | 車両用駆動装置 |
| EP3973210A1 (de) * | 2019-07-09 | 2022-03-30 | hofer powertrain innovation GmbH | Doppelgetriebe |
| US10989288B1 (en) * | 2019-10-07 | 2021-04-27 | Arvinmeritor Technology, Llc | Axle assembly having a multi-speed countershaft transmission |
| CN114930054B (zh) * | 2019-12-30 | 2025-12-30 | 加特可株式会社 | 动力传递装置 |
| US11707981B2 (en) * | 2021-06-02 | 2023-07-25 | Dana Automotive Systems Group, Llc | Multi-speed transmission system and operating method |
| CN113635709B (zh) * | 2021-09-06 | 2023-10-03 | 吉林大学 | 具有单个执行器的多模式转矩定向分配电动驱动桥 |
| US20230099321A1 (en) * | 2021-09-20 | 2023-03-30 | Dana Belgium N.V. | Electric driveline system and electric driveline system operating method |
-
2018
- 2018-09-19 DE DE102018215918.1A patent/DE102018215918A1/de active Pending
-
2019
- 2019-09-17 US US17/277,338 patent/US11780328B2/en active Active
- 2019-09-17 CN CN201980061229.7A patent/CN112752666A/zh active Pending
- 2019-09-17 EP EP19773758.8A patent/EP3853054A1/de not_active Withdrawn
- 2019-09-17 WO PCT/EP2019/074787 patent/WO2020058235A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020058235A1 (de) | 2020-03-26 |
| US11780328B2 (en) | 2023-10-10 |
| DE102018215918A1 (de) | 2020-03-19 |
| US20210347253A1 (en) | 2021-11-11 |
| CN112752666A (zh) | 2021-05-04 |
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