EP4093626A1 - Entraînement électrique comprenant un dispositif de frein de stationnement et agencement d'entraînement d'essieu comprenant l'entraînement électrique, pour un véhicule à moteur - Google Patents

Entraînement électrique comprenant un dispositif de frein de stationnement et agencement d'entraînement d'essieu comprenant l'entraînement électrique, pour un véhicule à moteur

Info

Publication number
EP4093626A1
EP4093626A1 EP21701720.1A EP21701720A EP4093626A1 EP 4093626 A1 EP4093626 A1 EP 4093626A1 EP 21701720 A EP21701720 A EP 21701720A EP 4093626 A1 EP4093626 A1 EP 4093626A1
Authority
EP
European Patent Office
Prior art keywords
drive
parking lock
housing
electric drive
gear
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.)
Pending
Application number
EP21701720.1A
Other languages
German (de)
English (en)
Inventor
Reinhard Deppert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
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 EP4093626A1 publication Critical patent/EP4093626A1/fr
Pending legal-status Critical Current

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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/3416—Parking lock mechanisms or brakes in the transmission
    • F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
    • 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
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
    • 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
    • B60Y2200/90—Vehicles comprising electric prime movers

Definitions

  • the invention relates to an electric drive for driving a motor vehicle according to the type defined in more detail in the preamble of claim 1.
  • the invention also relates to an axle drive arrangement with the electric drive.
  • an axle drive arrangement for a vehicle which comprises an electric drive designed as an electric machine, a change gear and a differential gear connected to wheel drive shafts. These components are accommodated in a common housing, an engine compartment being provided for accommodating the electrical machine and a gear compartment separated therefrom being provided for accommodating the transmission.
  • the Ro gate shaft When flanging the electrical machine to a partition wall of the housing, the Ro gate shaft is brought into a non-rotatable connection to the input shaft of the gearbox.
  • a parking lock is formed, which there is angeord net with an engagement mechanism and an actuating device together within the transmission space.
  • the engagement mechanism acts on the transmission input shaft connected to the rotor shaft.
  • Parking lock devices are also generally known from vehicles with hydrodynamic torque converters and serve to secure the vehicle against unintentional rolling when the engine is switched off, whereby it is common to block the transmission output shaft connected to the drive wheels in a rotationally fixed manner.
  • a Klin kenrad can be arranged on the transmission output shaft in a rotationally fixed manner, which can be influenced by a pawl according to the driver.
  • Such a parking lock has become known, for example, from DE 195 35 239 C1.
  • the present invention is based on the object of an electric drive and an axle drive arrangement with an electric drive for a motor vehicle show, in which a parking lock device for parking the motor vehicle is arranged functionally, assembly and maintenance-optimized at the same time.
  • an electric drive for a motor vehicle which comprises a drive housing with a motor housing section and with an engine compartment formed in this.
  • a stator and a rotor which is rotatably mounted relative to the stator by means of a rotor shaft are arranged, which together form an electrical machine.
  • the electric drive has a parking lock device with an engagement mechanism for locking the rotor shaft with respect to the drive housing.
  • the parking lock device is now designed as a component of the electrical drive's rule and forms with the electrical machine of the drive a prefabricated unit, which can be inserted or added to a vehicle drive train as required and joined there with other drive train components.
  • the integration of the parking lock device into the drive enables greater design freedom in the design of transmission assemblies located in the drive train, so that these can be formed in a more space-saving manner as a result.
  • by assigning the parking lock device to the drive a comparatively long torque transmission path between the driven vehicle wheels and the parking lock device can be realized and the elasticity of the drive train there when the parking lock is engaged can be used in the best possible and comfort-increasing manner.
  • the drive can be released from its mounting position, the elements of the parking lock device being accessible.
  • the parking lock device can advantageously have an actuating device for activating the engagement mechanism, which is fixed to the drive housing.
  • the actuating device can thus be formed spatially adjacent to the engagement mechanism and be arranged inside or outside the drive housing and be supported there.
  • the drive housing can have a parking lock housing section with a parking lock space, at least the engagement mechanism of the parking lock device being accommodated in the parking lock space.
  • the drive housing can be designed in one piece or in several parts, in particular in two parts, to form the parking space and the engine compartment.
  • the engine compartment for cooling the electrical machine can be designed as a wet space
  • the parking lock space can be designed as a dry space separated therefrom.
  • the actuating device can preferably be designed for electro-mechanical actuation and comprise an actuating drive arranged in a particularly space-saving manner within the drive housing as an actuator.
  • the engagement mechanism can have a parking lock gear arranged on the rotor shaft with a locking toothing and a locking pawl that interacts with this and is fixed on the drive housing, which can be controlled by the actuating device.
  • a diameter of an electrical machine of the vehicle drive is usually larger than a parking lock gear common in practice, so that a parking lock device implemented in this way can be arranged in the vicinity of the rotor and stator of the electrical machine without structural problems.
  • the drive housing can have a mounting flange, which can advantageously be provided on the parking lock housing section.
  • an end flange can be provided there through which the rotor shaft or a drive shaft connected to it can be passed.
  • an axle drive arrangement for a motor vehicle which comprises an electric drive as explained above.
  • the housing of the aforementioned further drive train component is designed as a transmission housing of a Gereteanord arrangement and is connected to the drive housing, in particular to the parking lock housing section.
  • the transmission arrangement comprises a transmission input shaft that is operatively connected to the rotor shaft and at least one transmission output shaft which is connected to vehicle wheels for transmitting a drive torque from the drive.
  • the gear arrangement can comprise a fixed or switchable reduction gear and / or an axle compensation gear.
  • the transmission output shaft can be designed as a wheel drive shaft.
  • Fig. 1 shows an axle drive arrangement for a motor vehicle with an electrical drive to and with a gear arrangement
  • FIG. 2 shows an axial sectional view of the electric drive from FIG. 1 with a parking lock device
  • FIG. 3 shows an end view of the electric drive from FIG. 2 with a view of the parking lock device.
  • an axle drive arrangement 100 for an electrically driven motor vehicle which comprises an electric drive 10 and a transmission arrangement 64 connected to it, whereby a drive torque can be transmitted to vehicle wheels, not shown in the drawing here.
  • the electric drive 10 shown in FIGS. 2 and 3 is designed as an internal electrical machine and has a drive housing 12 which forms a motor housing section 14 with an engine compartment 14a.
  • a stator 16 and a rotor 18 are arranged in the usual manner.
  • the stator 16 is fixed to the motor housing section 14 and the rotor 18 is rotatably supported on the stator 16 by means of a rotor shaft 20 and with bearings 15a, b located on end shields 14b, c.
  • the electric drive 10 also has a parking lock device 30, whereby the vehicle wheels and the torque-transmitting components of the drive train that are operatively connected to them can be blocked.
  • the parking lock device 30 has an engagement mechanism 32 for locking the rotor shaft 20 with respect to the drive housing 12.
  • the engagement mechanism 32 comprises a parking lock gear 34, which is arranged in a rotationally fixed manner on the rotor shaft 20 and has a locking toothing 34a, and a locking pawl 36 which cooperates with this and is pivotably fixed on the drive housing 12, which is likewise connected to the actuating device 40 fixed to the drive housing 12 can be controlled or activated.
  • the actuating device 40 is designed for electromechanical actuation and includes a motorized actuator 46 or a parking lock actuator 46 arranged within the drive housing 12, which, via a reduction gear, a worm drive and a rotary ramp, converts the actuator 46 into a translational movement a locking cone 47 which is largely covered in FIG. 3 and therefore partially shown with a dashed line.
  • a motorized actuator 46 or a parking lock actuator 46 arranged within the drive housing 12, which, via a reduction gear, a worm drive and a rotary ramp, converts the actuator 46 into a translational movement a locking cone 47 which is largely covered in FIG. 3 and therefore partially shown with a dashed line.
  • an electromagnetic emergency release actuator 48 is provided on the outside of the parking lock housing section 50, which engages with a tie rod 48a in the parking lock space 50a and, when activated, unlocks the parking lock device 30.
  • the drive housing 12 has a parking lock housing section 50, which is formed here in one piece with the motor housing section 14 and has a parking lock space 50a, in which the aforementioned engagement mechanism 32 and elements of the actuating device 32 are accommodated.
  • the parking lock space 50a is formed separately from the engine space 14a in the embodiment discussed here, but this is not absolutely necessary.
  • the ele ments of the electrical machine, that is, the stator 16 and the rotor 18 can alternatively also be located in a common space at least with the elements of the engagement mechanism 32 and further optionally with the elements of the actuating device 40.
  • the parking lock housing section 50 has a mounting flange 52 formed around the rotor shaft 20 for establishing a connection, in particular a screw connection, with the transmission housing 66 of the transmission arrangement 64.
  • the gear arrangement 64 further comprises a gear input shaft 68 which is connected to the rotor shaft 20 in a rotationally fixed manner in the region of the separation point of the two housing or housing sections 50, 66.
  • the gear arrangement 64 has a reduction gear 641 and a subsequent axle compensation gear 642 with two gear output shafts 70a, b designed as wheel drive shafts.
  • the transmission output shafts 70a, 70b are operatively connected to vehicle wheels for the transmission of a drive torque from the drive 10, starting from.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un entraînement électrique (10) pour un véhicule à moteur, lequel comprend un boîtier (12) comportant une section boîtier moteur (14) et un compartiment moteur (14a). Dans le compartiment moteur (14a) se trouvent un stator (16) et un rotor (18) monté pour pouvoir tourner par rapport au stator au moyen d'un arbre de rotor (20). Selon l'invention, l'entraînement électrique (10) comprend un dispositif de frein de stationnement (30) comprenant un mécanisme d'encliquetage (32) permettant le verrouillage de l'arbre de rotor (20) vis-à-vis du boîtier d'entraînement (12). L'invention concerne par ailleurs un dispositif d'entraînement d'essieu (100) comprenant l'entraînement électrique (10) et un dispositif d'engrenage (64).
EP21701720.1A 2020-01-23 2021-01-21 Entraînement électrique comprenant un dispositif de frein de stationnement et agencement d'entraînement d'essieu comprenant l'entraînement électrique, pour un véhicule à moteur Pending EP4093626A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020200770.5A DE102020200770A1 (de) 2020-01-23 2020-01-23 Elektrischer Antrieb mit einer Parksperrenvorrichtung und Achsantriebsanordnung mit dem elektrischen Antrieb für ein Kraftfahrzeug
PCT/EP2021/051269 WO2021148503A1 (fr) 2020-01-23 2021-01-21 Entraînement électrique comprenant un dispositif de frein de stationnement et agencement d'entraînement d'essieu comprenant l'entraînement électrique, pour un véhicule à moteur

Publications (1)

Publication Number Publication Date
EP4093626A1 true EP4093626A1 (fr) 2022-11-30

Family

ID=74236177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21701720.1A Pending EP4093626A1 (fr) 2020-01-23 2021-01-21 Entraînement électrique comprenant un dispositif de frein de stationnement et agencement d'entraînement d'essieu comprenant l'entraînement électrique, pour un véhicule à moteur

Country Status (5)

Country Link
US (1) US20230050189A1 (fr)
EP (1) EP4093626A1 (fr)
CN (1) CN115210097A (fr)
DE (1) DE102020200770A1 (fr)
WO (1) WO2021148503A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12025222B1 (en) * 2022-07-22 2024-07-02 GreenPower Motor Company External parking lock for electric drive systems
FR3140599B1 (fr) * 2022-10-06 2024-08-30 Renault Sas Dispositif de frein de stationnement intégré à une machine électrique
WO2024074652A1 (fr) * 2022-10-06 2024-04-11 Ampere S.A.S. Titre de l'invention : dispositif de frein de stationnement integre a une machine electrique
DE102023002553B3 (de) 2023-06-23 2024-10-24 Mercedes-Benz Group AG Elektrisches Antriebssystem für ein Kraftfahrzeug sowie Kraftfahrzeug

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535239C1 (de) 1995-09-22 1996-12-12 Daimler Benz Ag Parksperre für Fahrzeuge
DE19921918C2 (de) 1999-05-12 2003-05-15 Zf Sachs Ag Parksperre für ein Fahrzeug mit Elektroantrieb und elektrischer Antrieb für ein Fahrzeug
DE102005022926B3 (de) 2005-05-13 2007-02-01 Getrag Innovations Gmbh Antriebseinheit für ein Kraftfahrzeug
DE102007055768A1 (de) 2007-12-12 2009-06-18 Zf Friedrichshafen Ag Elektrischer Antrieb
RU2011122726A (ru) 2008-11-07 2012-12-20 МАГНА ПАУЭРТРЕЙН ЮЭсЭй, ИНК. Электропривод для двухскоростного ведущего моста в блоке с коробкой передач
JP5760215B2 (ja) * 2011-01-24 2015-08-05 株式会社 神崎高級工機製作所 作業車両の車軸駆動装置
DE102016210461A1 (de) * 2016-06-14 2017-12-14 Robert Bosch Gmbh Achsantrieb für ein Fahrzeug
CN108674179B (zh) 2018-06-12 2024-03-26 精进电动科技股份有限公司 一种一体化电驱动动力总成
CN110588310A (zh) * 2019-09-27 2019-12-20 上海中科深江电动车辆有限公司 电驱动装置

Also Published As

Publication number Publication date
DE102020200770A1 (de) 2021-07-29
CN115210097A (zh) 2022-10-18
US20230050189A1 (en) 2023-02-16
WO2021148503A1 (fr) 2021-07-29

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