WO2017088941A1 - Unité de transmission - Google Patents

Unité de transmission Download PDF

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Publication number
WO2017088941A1
WO2017088941A1 PCT/EP2016/001719 EP2016001719W WO2017088941A1 WO 2017088941 A1 WO2017088941 A1 WO 2017088941A1 EP 2016001719 W EP2016001719 W EP 2016001719W WO 2017088941 A1 WO2017088941 A1 WO 2017088941A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil pump
drive
input shaft
transmission input
rotation
Prior art date
Application number
PCT/EP2016/001719
Other languages
German (de)
English (en)
Inventor
Josep Maria BOU ROMANO
Tobias Haerter
Peter Hahn
Jakub Romaniak
Juergen Schweitzer
Stefan Sperrfechter
Heinrich Straub
Original Assignee
Daimler 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 Daimler Ag filed Critical Daimler Ag
Publication of WO2017088941A1 publication Critical patent/WO2017088941A1/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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0441—Arrangements of pumps
    • 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
    • F16H3/003—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion the gear-ratio being changed by inversion of torque direction
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H61/0025—Supply of control fluid; Pumps therefore

Definitions

  • the invention relates to a drive train device with an oil pump.
  • a powertrain device which uses a planetary gear with a freewheel for driving ancillaries, such as an oil pump, to drive the accessory both by means of an electric machine and by means of an internal combustion engine.
  • the invention is in particular the object of providing a device which simplifies operation of an oil pump. It is achieved by an embodiment according to the invention according to claim 1. Further developments of the invention will become apparent from the dependent claims.
  • the invention is based on a drive train device with an oil pump, which is intended to be driven by a transmission input shaft.
  • the drive train device at least one
  • the oil pump comprises mechanical rectifier, which is at least provided to provide a rectified torque for driving the oil pump, regardless of a direction of rotation of the transmission input shaft.
  • the oil pump can advantageously be operated independently of the direction of rotation of the transmission input shaft. It can be avoided to change a construction of the oil pump and in particular the hydraulic system.
  • it is particularly advantageous to support the oil pump with torque at low rotational speeds of an internal combustion engine by means of an electric motor. It may be possible to operate the oil pump exclusively, in particular in the case of oil pumps of electric vehicle transmissions, by means of the electric motor. As a result, a simplified operation of the oil pump can be achieved overall. Under a "rectified torque" is in particular a
  • Torque to be understood, its directional vector in a same direction is oriented.
  • the rectified torque has a constant time in a same direction.
  • independent of a direction of rotation of the transmission input shaft should be understood in particular that a direction of rotation of the
  • Change transmission input shaft in particular, the oil pump is always acted upon by a torque of a constant rotational direction.
  • the mechanical rectifier has at least one driving component and two oppositely oriented freewheels which are provided to provide two different force paths for connecting the oil pump to the driving component. This can be structurally simple
  • a “driving component” is to be understood in particular a component of the mechanical rectifier, which is intended for permanent connection to the transmission input shaft, in particular a gear which is intended to be connected by a chain drive or a spur gear to the transmission input shaft, Alternatively, or additionally, the driving component may be designed in particular as a gearwheel drive.
  • a “freewheeling” is to be understood as meaning, in particular, a mechanical component which comprises a gearwheel drive is provided for transmitting a torque in a reverse direction a rotationally fixed
  • a reversal of a transmission direction of a torque is to be understood in particular as “reversing a direction of transmission of a torque.”
  • a torque of the oil pump is greater than a torque of the driving component Freewheels are oriented opposite each other.
  • a force path is in particular a
  • connection are understood, which is intended to transmit a torque.
  • different force paths should be understood in particular force paths, in which a transmission of torque via at least one different component takes place.
  • the mechanical rectifier has at least one reverse gear which is arranged between the driving component and one of the freewheels.
  • the reversing gear can be connected particularly advantageous to the driving component and the freewheels.
  • additional components can be saved.
  • a “reverse gear” should be understood here to mean, in particular, a gear which is intended to change a sign of a direction vector of a torque. "In this context,” in particular "should be understood along at least one force path.
  • the reverse gear is designed as a planetary gear.
  • Crown gear is formed. This can be a translation of 1: 1 of the
  • Reverse gear can be achieved.
  • Fig. 2 is a schematic representation of the drive train device
  • Fig. 3 is a sectional view of the drive train device.
  • FIG. 1 shows a motor vehicle 24 with a drive train device.
  • Drive train device has a drive 26.
  • the drive 26 is as a
  • the drive 26 a the drive 26 a
  • the drive 26 may be designed exclusively as an electric drive, which has only the electric motor 30.
  • the internal combustion engine 28 and the electric motor 30 are connected to each other by means of a coupling unit 32 of the drive device.
  • the coupling unit 32 may be formed as a planetary gear. In the event that the drive 26 is designed as an electric drive, could be dispensed with a coupling unit 32.
  • the drive train device has a transmission input shaft 12.
  • Transmission input shaft 12 is by means of the coupling unit 32 to the drive 26th connected. In an operating state of the drive 26, this is at least provided to drive the transmission input shaft 12.
  • the transmission input shaft 12 can be operated by means of the drive 26 in different directions of rotation.
  • FIGS 2 and 3 show a schematic representation and a sectional view of the drive train device.
  • the drive train device has an oil pump 10.
  • the oil pump 10 is intended to be driven by the transmission input shaft 12.
  • the oil pump 10 is provided for operation with a rectified torque.
  • the powertrain device includes a mechanical rectifier 14.
  • the mechanical rectifier 14 is intended to be independent of one
  • the mechanical rectifier 4 connects the oil pump 10 with the transmission input shaft 12.
  • the oil pump 10 has a
  • the mechanical rectifier 14 is rotatably and automatically connected to the oil pump drive shaft 34 switching.
  • Oil pump drive shaft 34 of the oil pump 10 is for operation with the
  • the mechanical rectifier 14 has a driving component 16.
  • the driving member 16 is for permanent connection with the transmission input shaft 12
  • the driving member 16 is formed as a gear.
  • the driving member 16 has a Zylinderradvertechnikung.
  • the transmission input shaft 12 has a transmission wheel 36.
  • the drive train device has a chain drive 38.
  • the driving member 16 is connected by means of the chain drive 38 with the transmission input shaft 12.
  • the transmission wheel 36 is permanently rotatable with the
  • the transmission wheel 36 is by means of
  • Chain drive 38 permanently connected to the driving member 16.
  • the mechanical rectifier 14 has two oppositely oriented freewheels 18, 20.
  • the driving member 16 is connected by means of a first freewheel 18 independently switching non-rotatably connected to the oil pump input shaft.
  • the mechanical rectifier 14 has a further driving component 17.
  • the further driving member 17 is formed as a gear.
  • the mechanical rectifier has a second freewheel 20.
  • the further driving member 17 is connected by means of the second freewheel 20 independently switching non-rotatably connected to the oil pump input shaft.
  • the two freewheels 18, 20 are oriented opposite to each other.
  • the two freewheels 18, 20 are provided, different power paths for a connection of the oil pump 10 to the driving components 16, 17 provide.
  • Torque takes place along a first force path at least via the driving component 16. Transmission of a torque takes place along a second force path at least via the further driving component 17.
  • the mechanical rectifier 14 has a reverse gear 22.
  • the reverse gear 22 has a ratio of 1: 1 between the driving member 16 and
  • the reverse gear 22 is between the driving components 16, 17 and at least one of the freewheels 18, 20 of the mechanical
  • Rectifier 14 is arranged.
  • the reverse gear 22 is formed as a crown gear.
  • the reverse gear 22 is formed by a crown gear of the driving member 16, by a crown gear of the further driving member 17 and by two planetary gears 44, 46 of the mechanical rectifier 14.
  • the driving member 16 and the further driving member 7 are by means of the planet gears 44, 46th permanently connected.
  • the planet gears 44, 46 are each rotatably mounted on a bolt of the mechanical rectifier 14.
  • the bolt may be fixedly connected to a housing of the oil pump 10.
  • the mechanical rectifier 14 may have a needle bearing 48. The needle bearing 48 is then provided the
  • Planet wheels 44, 46 relative to the driving components 16, 17 to store rotatably.
  • the transmission input shaft 12 can be operated in a first and a second direction of rotation.
  • the first direction of rotation is seen in the drive direction in the clockwise direction.
  • the second direction of rotation is seen in the drive direction counterclockwise.
  • both directions of rotation can be transmitted to the driving member 16.
  • the first direction of rotation of the driving member 16 is clockwise.
  • the second direction of rotation of the driving member 16 corresponds counterclockwise.
  • the driving member 16 is rotatably connected via the first freewheel 18 with the oil pump drive shaft 34. In the second direction of rotation of the first freewheel 18 releases the rotationally fixed connection of the driving member 16 with the
  • Oil pump drive shaft 34 so that it is transmitted in a second rotational direction no torque from the driving member 16 to the oil pump drive shaft 34.
  • the oil pump drive shaft 34 is thus always from the driving member 16 in Operated clockwise.
  • the first direction of rotation of the further driving member 17 corresponds counterclockwise.
  • the second direction of rotation of the further driving component 17 corresponds in the clockwise direction.
  • the first direction of rotation of the second freewheel 20 solves the rotationally fixed connection of the other driving member 17 with the oil pump drive shaft 34, so that there is no torque from the other driving member 17 is transmitted to the oil pump drive shaft 34 in a first direction of rotation of the other driving member 17.
  • the further driving component 17 is rotatably connected to the oil pump drive shaft 34 via the second freewheel 20.
  • Oil pump drive shaft 34 is thus always operated by the other driving member 17 in a clockwise direction.
  • Transmission input shaft are converted into a directed torque.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Of Transmissions (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne une unité de transmission comprenant une pompe à huile (10) qui est prévue pour être entraînée par un arbre primaire de boîte de vitesses (12). Selon l'invention, un redresseur mécanique (14) est prévu pour fournir, indépendamment d'un sens de rotation de l'arbre primaire de boîte de vitesses (12), un couple dirigé dans le même sens aux fins d'entraînement de la pompe à huile (10).
PCT/EP2016/001719 2015-11-28 2016-10-18 Unité de transmission WO2017088941A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015015665.9 2015-11-28
DE102015015665.9A DE102015015665A1 (de) 2015-11-28 2015-11-28 Antriebsstrangvorrichtung

Publications (1)

Publication Number Publication Date
WO2017088941A1 true WO2017088941A1 (fr) 2017-06-01

Family

ID=56293537

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/001719 WO2017088941A1 (fr) 2015-11-28 2016-10-18 Unité de transmission

Country Status (2)

Country Link
DE (1) DE102015015665A1 (fr)
WO (1) WO2017088941A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH064455U (ja) * 1992-06-24 1994-01-21 信一 七野 一段同軸ワンウェイ出力機構
DE102006037576A1 (de) 2006-08-11 2008-04-10 Daimler Ag Nebenaggregatantrieb für ein Kraftfahrzeug
WO2015065279A1 (fr) * 2013-11-01 2015-05-07 Scania Cv Ab Transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH064455U (ja) * 1992-06-24 1994-01-21 信一 七野 一段同軸ワンウェイ出力機構
DE102006037576A1 (de) 2006-08-11 2008-04-10 Daimler Ag Nebenaggregatantrieb für ein Kraftfahrzeug
WO2015065279A1 (fr) * 2013-11-01 2015-05-07 Scania Cv Ab Transmission

Also Published As

Publication number Publication date
DE102015015665A1 (de) 2016-07-21

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