WO2021089468A1 - Propulsion électrique pour un véhicule - Google Patents

Propulsion électrique pour un véhicule Download PDF

Info

Publication number
WO2021089468A1
WO2021089468A1 PCT/EP2020/080653 EP2020080653W WO2021089468A1 WO 2021089468 A1 WO2021089468 A1 WO 2021089468A1 EP 2020080653 W EP2020080653 W EP 2020080653W WO 2021089468 A1 WO2021089468 A1 WO 2021089468A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
planetary gear
electric drive
switching element
drive according
Prior art date
Application number
PCT/EP2020/080653
Other languages
German (de)
English (en)
Inventor
Christopher Allnoch
Christian Gürlich
Matthias Winkel
Markus Laile
Stephan Demmerer
Christoph Margraf
Andreas Geiger
Peter Ziemer
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2021089468A1 publication Critical patent/WO2021089468A1/fr

Links

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
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62—Gearings having three or more central gears
    • F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2038—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with three engaging means
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2064—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using at least one positive clutch, e.g. dog clutch
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2066—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using one freewheel mechanism
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2079—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches
    • F16H2200/2082—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches one freewheel mechanisms
    • 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
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2094—Transmissions using gears with orbital motion using positive clutches, e.g. dog clutches

Definitions

  • the present invention relates to an electric drive for a vehicle with at least one electric machine according to the type defined in more detail in the preamble of claim 1.
  • the invention also relates to a vehicle with the electric drive.
  • a two-stage transmission for electric vehicles is known from the document EP 2 669 548 B1, in which a primary shaft and a secondary shaft are provided, which are arranged axially parallel and are coupled to one another via spur gear stages in order to drive output shafts via an output differential.
  • a clutch and an overrunning clutch are provided to implement the two gear stages. This results not only in an elaborate design and a high space requirement, but also in a lower degree of efficiency in the electric drive.
  • the present invention is based on the object of proposing an electric drive of the type described at the beginning and a vehicle with the electric drive in which the space requirement is minimized and the efficiency is optimized.
  • an electric drive for a vehicle with at least one electric Ma machine drives a drive shaft that has a first planetary gear and a second planetary gear to realize at least a first gear stage and a second gear stage with an output differential to drive at least two Ab drive shafts is coupled. Furthermore, the drive shaft and the output shafts are arranged axially parallel to one another.
  • the drive shaft is coupled to the sun gears of the first planetary gear and the second planetary gear, that the common planetary gear carrier of the first planetary gear and the second planetary gear are coupled to the output differential is that a ring gear of the first planetary gear can be connected to a housing via a first shift element for shifting the first gear stage and that a ring gear of the second planetary gear unit can be connected to the housing via a second shift element for shifting the second gear stage.
  • a coupled or double planetary gear set is driven via the drive shaft, which is coupled via the at least one spur gear stage as a reduction gear or as a reduction stage with the output differential, which results not only in a very space-saving but also in terms of efficiency.
  • sun gears of the first planetary gear and of the second planetary gear are designed as a common sun gear which is connected to the drive shaft. This not only reduces the installation space, but also the number of components required.
  • the proposed electric drive also saves space when the coupled planetary gears or planetary gear sets are connected via the common planetary gear carrier, the common planetary gear carrier being coupled to the output differential via the at least one spur gear stage or the like.
  • the common planetary gear carrier instead of the common planetary gear carrier, separate planetary gear carriers connected to one another are also used.
  • the spur gear stage is connected to the drive differential directly or indirectly via an intermediate shaft or the like.
  • the possibility of an indirect connection via an intermediate shaft has the advantage that the diameters of the components of the planetary gears can be varied, if necessary, in order to be able to implement certain gear ratios. As a result, the range of use of the proposed electric drive can be expanded in this way.
  • a particularly preferred embodiment of the present invention provides that a shift pawl, that is to say a form-fitting shift element, is provided as the first shift element as the brake, and a friction shift element is provided as the second shift element as the brake.
  • a shift pawl that is to say a form-fitting shift element
  • a friction shift element is provided as the second shift element as the brake.
  • a freewheel is provided as the first shift element and a friction shift element is provided as the second shift element. Shift claws or friction shift elements can also be seen as the first and second shift elements.
  • a common actuator for independently actuating the switching elements can preferably be used to reduce the necessary components and also the space required.
  • friction shift elements or multi-disc brakes are used as shift elements, normally open shift elements or shift elements open in the non-actuated state can be used. However, it would also be possible to use normally closed or closed switching elements in the non-actuated state.
  • a further embodiment of the invention can provide for the spur gear stage, for example, to be coupled to an actuatable parking lock.
  • Another aspect of the present invention is to propose a vehicle with the above-described electric drive. This results in the already described and other advantages.
  • FIG. 1 shows a sectional view of a possible embodiment of an electric drive according to the invention for a vehicle; and FIG. 2 shows a schematic representation of the principle of the electric drive.
  • the proposed electric drive for a vehicle comprises at least one electric machine EM, which can be operated as a motor but also as a generator.
  • the electric machine EM drives a rotor with its rotor Drive shaft 1, which is coupled via a first planetary gear set PG1 and a second planetary gear set PG2 to realize a first gear stage and a second gear stage with an output differential 2 for driving at least two output shafts 3, 4.
  • the drive shaft 1 can itself be designed as a rotor shaft or be coupled to it.
  • the drive shaft 1, the first planetary gear set PG1 and the second planetary gear set PG2 are arranged coaxially to one another, the drive shaft 1 and the output shafts 3, 4 being arranged axially parallel to one another, since the planetary gears PG1, PG2 are coupled to the output differential 2 via a spur gear stage 5 .
  • the drive shaft 1 is connected to a sun gear 6 of the first planetary gear set PG1 and a sun gear 6A of the second planetary gear set PG2, the sun gear 6 of the first planetary gear set PG1 and the sun gear 6A of the second planetary gear set PG2 are connected to each other.
  • the sun gears 6, 6A are designed as a common sun gear 11 of the first planetary gear set PG1 and the second planetary gear set PG2 and are connected to the drive shaft 1.
  • the common sun gear 11 or form the sun gears 6, 6A of the first planetary gear set PG1 and the second planetary gear set PG2 to drive the planetary gears PG1, PG2 which are coupled to one another.
  • the planetary gears of the first planetary gear set PG1 and the second planetary gear set PG2 are exemplarily designed as a common planetary gear carrier 7, the common planetary gear carrier 7 being coupled to the output differential 2 via the spur gear stage 5.
  • a ring gear 8 of the first planetary gear set PG1 can be connected to a housing 9 via a first switching element B1 as a brake for shifting the first gear stage and that a ring gear 10 of the second planetary gear set PG2 can be connected to the housing 9 via a second Wegele element B2 as a brake for shifting the second gear stage.
  • the first shift element B1 is designed as a form-fitting shift element or as a shift claw, while the second shift element B2 is designed as a friction shift element or multi-disc brake.
  • the two switching elements B1, B2 can be actuated electromechanically, preferably via a common actuator.
  • the use of a spur gear stage results in a high degree of flexibility in terms of gear jump and translation in the two-speed electric drive.
  • the electric drive is optimized for the two gears and can, for example, generate revolutions of up to 10,000 revolutions per minute with an output of 170 kW.
  • a bevel gear differential which is shown by way of example in FIG. 1, can preferably be used as the output differential 2.
  • FIGS. 1 and 2 a connection of a parking lock P is provided in FIGS. 1 and 2.
  • the parking lock P can preferably be assigned to the spur gear stage 5 and this set zen fixed to the housing to activate the parking lock P and to keep the vehicle at a standstill.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

L'invention concerne une propulsion électrique pour un véhicule comprenant au moins une machine électrique (EM) qui entraîne un arbre d'entraînement (1) qui est couplé à un différentiel de sortie (2) par l'intermédiaire d'une première transmission planétaire (PG1) et d'une deuxième transmission planétaire (PG2) de manière à produire au moins un premier rapport d'engrenage et un deuxième rapport d'engrenage afin d'entraîner au moins deux arbres de sortie (3, 4). L'arbre d'entraînement (1) et les arbres de sortie (3, 4) sont disposés parallèlement l'un à l'autre dans le sens axial, et l'arbre d'entraînement (1) est couplé à des roues solaires (6, 6A) de la première transmission planétaire (PG1) et de la deuxième transmission planétaire (PG2). Un porte-satellites commun (7) de la première transmission planétaire (PG1) et de la deuxième transmission planétaire (PG2) est couplé au différentiel de sortie (2) par l'intermédiaire d'au moins un étage d'engrenage cylindrique à denture droite (5), une couronne (8) de la première transmission planétaire (PG1) peut être reliée à un carter (9) par l'intermédiaire d'un premier élément de changement de rapport (B1) afin d'engager le premier rapport d'engrenage, et une couronne (10) de la deuxième transmission planétaire (PG2) peut être reliée au carter (9) par l'intermédiaire d'un deuxième élément de changement de rapport (B2) afin d'engager le deuxième rapport d'engrenage. L'invention concerne également un véhicule comprenant une propulsion électrique.
PCT/EP2020/080653 2019-11-07 2020-11-02 Propulsion électrique pour un véhicule WO2021089468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019217156.7 2019-11-07
DE102019217156.7A DE102019217156A1 (de) 2019-11-07 2019-11-07 Elektrischer Antrieb für ein Fahrzeug

Publications (1)

Publication Number Publication Date
WO2021089468A1 true WO2021089468A1 (fr) 2021-05-14

Family

ID=73059895

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/080653 WO2021089468A1 (fr) 2019-11-07 2020-11-02 Propulsion électrique pour un véhicule

Country Status (2)

Country Link
DE (1) DE102019217156A1 (fr)
WO (1) WO2021089468A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024625A1 (de) * 2009-06-12 2010-12-16 Daimler Ag Antriebsstrang
KR20120097709A (ko) * 2011-02-25 2012-09-05 현대 파워텍 주식회사 차량용 감속장치
EP2669548B1 (fr) 2012-06-01 2014-07-02 Oerlikon Graziano S.P.A. Transmission deux vitesses pour machines électriques avec un système permettant de contrôler le jeu angulaire
DE102015200447A1 (de) * 2015-01-14 2016-07-14 Schaeffler Technologies AG & Co. KG Antriebseinheit
WO2017108168A1 (fr) * 2015-12-24 2017-06-29 Daimler Ag Dispositif de transmission comprenant un moteur électrique
WO2017172722A1 (fr) * 2016-03-28 2017-10-05 Dana Heavy Vehicle Systems Group, Llc Essieux de chaîne cinématique électrique à boites de vitesse à plusieurs vitesses
DE102017007088A1 (de) * 2017-07-27 2019-01-31 Daimler Ag Planetengetriebevorrichtung für ein elektrisches Antriebssystem

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150158382A1 (en) * 2013-12-05 2015-06-11 Avl Powertrain Engineering, Inc. Two-speed transmission for electric vehicle
US9707834B2 (en) * 2014-05-13 2017-07-18 GM Global Technology Operations LLC Vehicle transmission with common carrier planetary gear set

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024625A1 (de) * 2009-06-12 2010-12-16 Daimler Ag Antriebsstrang
KR20120097709A (ko) * 2011-02-25 2012-09-05 현대 파워텍 주식회사 차량용 감속장치
EP2669548B1 (fr) 2012-06-01 2014-07-02 Oerlikon Graziano S.P.A. Transmission deux vitesses pour machines électriques avec un système permettant de contrôler le jeu angulaire
DE102015200447A1 (de) * 2015-01-14 2016-07-14 Schaeffler Technologies AG & Co. KG Antriebseinheit
WO2017108168A1 (fr) * 2015-12-24 2017-06-29 Daimler Ag Dispositif de transmission comprenant un moteur électrique
WO2017172722A1 (fr) * 2016-03-28 2017-10-05 Dana Heavy Vehicle Systems Group, Llc Essieux de chaîne cinématique électrique à boites de vitesse à plusieurs vitesses
DE102017007088A1 (de) * 2017-07-27 2019-01-31 Daimler Ag Planetengetriebevorrichtung für ein elektrisches Antriebssystem

Also Published As

Publication number Publication date
DE102019217156A1 (de) 2021-05-12

Similar Documents

Publication Publication Date Title
WO2021089467A1 (fr) Propulsion électrique pour un véhicule
EP3803158B1 (fr) Transmission multivitesses coupable sous charge
WO2019228723A1 (fr) Transmission de pédalier de construction planétaire pour une bicyclette ou un vélo électrique
EP2820327A1 (fr) Engrenage à plusieurs rapports de type planétaire pour véhicule
DE102015218252A1 (de) Zweiganggetriebe für ein Fahrzeug, Antriebsstrang für das Fahrzeug sowie Verfahren zum Schalten
WO2013127547A1 (fr) Engrenage planétaire à plusieurs rapports pour véhicule
EP3870879A1 (fr) Boîte de vitesses à plusieurs rapports commandée en charge
WO2000057081A1 (fr) Boite de vitesse automatique pour vehicule
WO2021151845A1 (fr) Entraînement électrique pour un véhicule
DE102020211070A1 (de) Getriebe für einen Elektroantrieb oder Antriebsstrang eines Fahrzeugs, Elektroantrieb und Antriebsstrang
DE102019114803A1 (de) Elektrischer Achsantrieb mit einem Planetengetriebe
DE102019119954A1 (de) Antriebsvorrichtung für ein Kraftfahrzeug mit gemeinsamen starren Hohlrad und gemeinsamen starren Planetenradträger
WO2015055174A2 (fr) Transmission à double embrayage de type train planétaire
WO2021089468A1 (fr) Propulsion électrique pour un véhicule
DE102011084931A1 (de) Fahrrad mit einem Zusatzantrieb
WO2023274824A1 (fr) Entraînement électrique pour un véhicule
WO2021089469A1 (fr) Entraînement électrique pour véhicule
WO2017129173A1 (fr) Transmission planétaire pour un véhicule automobile
DE102011081761A1 (de) Antriebsanordnung einer mobilen Arbeitsmaschine
DE102018200295B4 (de) Getriebe für ein Kraftfahrzeug
DE102020211067A1 (de) Elektroantrieb, Antriebsstrang und Verfahren
DE102019216013A1 (de) Elektrischer Antrieb für ein Fahrzeug
DE102021213522B3 (de) Antriebsanordnung für ein Fahrrad oder Pedelec
EP3967535A1 (fr) Unité d'entraînement
DE102021205939B4 (de) Getriebe für ein Kraftfahrzeug, Antriebsstrang sowie Verfahren zum Betreiben des Getriebes

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20800870

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 20800870

Country of ref document: EP

Kind code of ref document: A1