SE1750110A1 - A gearbox for vehicles - Google Patents

A gearbox for vehicles

Info

Publication number
SE1750110A1
SE1750110A1 SE1750110A SE1750110A SE1750110A1 SE 1750110 A1 SE1750110 A1 SE 1750110A1 SE 1750110 A SE1750110 A SE 1750110A SE 1750110 A SE1750110 A SE 1750110A SE 1750110 A1 SE1750110 A1 SE 1750110A1
Authority
SE
Sweden
Prior art keywords
gearbox
gear
range
split
vehicles
Prior art date
Application number
SE1750110A
Other languages
English (en)
Other versions
SE540700C2 (sv
Inventor
Dahlbäck Mårten
Arnelöf Per
Forsberg Jörgen
Slapak Dieter
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE1750110A priority Critical patent/SE540700C2/sv
Priority to KR1020197025423A priority patent/KR102272418B1/ko
Priority to PCT/SE2018/050068 priority patent/WO2018147780A1/en
Priority to EP18750676.1A priority patent/EP3580474B1/en
Priority to US16/481,920 priority patent/US11193568B2/en
Priority to BR112019015964-9A priority patent/BR112019015964A2/pt
Priority to CN201880009731.9A priority patent/CN110249160B/zh
Publication of SE1750110A1 publication Critical patent/SE1750110A1/sv
Publication of SE540700C2 publication Critical patent/SE540700C2/sv

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H37/00Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04Combinations of toothed gearings only
    • F16H37/042Combinations of toothed gearings only change gear transmissions in group arrangement
    • F16H37/046Combinations of toothed gearings only change gear transmissions in group arrangement with an additional planetary gear train, e.g. creep gear, overdrive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/091Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
    • F16H3/0915Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft with coaxial input and output shafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/46Gearings having only two central gears, connected by orbital gears
    • F16H3/48Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
    • F16H3/52Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
    • F16H3/54Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00Type of vehicle
    • B60Y2200/10Road Vehicles
    • B60Y2200/14Trucks; Load vehicles, Busses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00Type of vehicle
    • B60Y2200/10Road Vehicles
    • B60Y2200/14Trucks; Load vehicles, Busses
    • B60Y2200/142Heavy duty trucks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00Special features of vehicle units
    • B60Y2400/70Gearings
    • B60Y2400/73Planetary gearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H2003/447Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion without permanent connection between the set of orbital gears and the output
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H37/00Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04Combinations of toothed gearings only
    • F16H37/042Combinations of toothed gearings only change gear transmissions in group arrangement
    • F16H37/043Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion
    • F16H2037/045Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion comprising a separate gearing unit for shifting between high and low ratio range
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H37/00Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04Combinations of toothed gearings only
    • F16H2037/049Forward-reverse units with forward and reverse gears for achieving multiple forward and reverse gears, e.g. for working machines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/033Series gearboxes, e.g. gearboxes based on the same design being available in different sizes or gearboxes using a combination of several standardised units
    • F16H2057/0335Series transmissions of modular design, e.g. providing for different transmission ratios or power ranges
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/20Transmissions using gears with orbital motion
    • F16H2200/2002Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2005Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/20Transmissions using gears with orbital motion
    • F16H2200/203Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2035Transmissions 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2702/00Combinations of two or more transmissions
    • F16H2702/02Mechanical transmissions with planetary gearing combined with one or more other mechanical transmissions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/091Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structure Of Transmissions (AREA)
SE1750110A 2017-02-08 2017-02-08 A gearbox for vehicles SE540700C2 (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE1750110A SE540700C2 (sv) 2017-02-08 2017-02-08 A gearbox for vehicles
KR1020197025423A KR102272418B1 (ko) 2017-02-08 2018-01-31 차량용 기어박스
PCT/SE2018/050068 WO2018147780A1 (en) 2017-02-08 2018-01-31 A gearbox for vehicles
EP18750676.1A EP3580474B1 (en) 2017-02-08 2018-01-31 A gearbox for vehicles
US16/481,920 US11193568B2 (en) 2017-02-08 2018-01-31 Gearbox for vehicles
BR112019015964-9A BR112019015964A2 (pt) 2017-02-08 2018-01-31 Caixa de engrenagens para veículos
CN201880009731.9A CN110249160B (zh) 2017-02-08 2018-01-31 用于车辆的变速箱

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1750110A SE540700C2 (sv) 2017-02-08 2017-02-08 A gearbox for vehicles

Publications (2)

Publication Number Publication Date
SE1750110A1 true SE1750110A1 (sv) 2018-08-09
SE540700C2 SE540700C2 (sv) 2018-10-16

Family

ID=63107801

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1750110A SE540700C2 (sv) 2017-02-08 2017-02-08 A gearbox for vehicles

Country Status (7)

Country Link
US (1) US11193568B2 (sv)
EP (1) EP3580474B1 (sv)
KR (1) KR102272418B1 (sv)
CN (1) CN110249160B (sv)
BR (1) BR112019015964A2 (sv)
SE (1) SE540700C2 (sv)
WO (1) WO2018147780A1 (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207955335U (zh) * 2018-01-19 2018-10-12 精进电动科技股份有限公司 一种纵置单动力源车辆驱动总成
SE542585C2 (sv) * 2018-10-09 2020-06-09 Scania Cv Ab Range gearbox for vehicles and vehicles comprising such a gearbox
WO2020084913A1 (ja) * 2018-10-22 2020-04-30 ジヤトコ株式会社 前後進切替機構
CN112654803A (zh) 2018-10-22 2021-04-13 加特可株式会社 齿轮的支承结构
SE1950021A1 (sv) 2019-01-10 2020-07-11 Scania Cv Ab A gearbox for a vehicle and a vehicle comprising such a gearbox

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5337624A (en) * 1992-12-08 1994-08-16 Ford New Holland, Inc. Powershift transmission with overlapping ranges of ratios
DE19831293A1 (de) * 1998-07-13 2000-01-20 Zahnradfabrik Friedrichshafen Getriebesystem
DE19851895A1 (de) 1998-11-11 2000-05-18 Zahnradfabrik Friedrichshafen Vielgängiges Schaltgetriebe für Kraftfahrzeuge
SE0000253L (sv) 2000-01-28 2001-01-29 Scania Cv Ab Synkroniseringsanordning vid en planetväxel
JP2001280463A (ja) * 2000-03-31 2001-10-10 Isuzu Motors Ltd 車両の自動変速装置
DE10120060A1 (de) * 2001-04-24 2002-10-31 Zahnradfabrik Friedrichshafen Fahrzeuggetriebe
US6827666B2 (en) * 2002-09-04 2004-12-07 Daimlerchrysler Corporation Transmission gear ratio selection
US7070534B2 (en) 2004-07-29 2006-07-04 General Motors Corporation Power transmission with preselected ratios and a preselected output splitter
JP2006132572A (ja) * 2004-11-02 2006-05-25 Exedy Corp 変速装置
DE102005020606A1 (de) * 2005-05-03 2006-12-14 Daimlerchrysler Ag Getriebe mit im Direktgang abkoppelbarer Vorgelegewelle
DE102005046894A1 (de) * 2005-09-30 2007-05-03 Zf Friedrichshafen Ag Automatisiertes Kfz-Schaltgetriebe und Verfahren zur Schaltsteuerung eines automatisierten Kfz-Schaltgetriebes
DE102005050067A1 (de) * 2005-10-19 2007-05-03 Zf Friedrichshafen Ag Automatisiertes Schaltgetriebe und Verfahren zur Schaltsteuerung eines solchen Schaltgetriebes
JP2008014403A (ja) * 2006-07-06 2008-01-24 Mitsubishi Agricult Mach Co Ltd トラクタのトランスミッション
DE102006038193A1 (de) * 2006-08-16 2008-02-21 Daimler Ag Gruppengetriebe für ein Kraftfahrzeug
JP2008174118A (ja) * 2007-01-19 2008-07-31 Nissan Diesel Motor Co Ltd ハイブリッド車両のパワートレイン
US7896770B2 (en) * 2007-08-01 2011-03-01 GM Global Technology Operations LLC Multi-speed transmission
DE102010003924A1 (de) * 2010-04-13 2011-10-13 Zf Friedrichshafen Ag Doppelkupplungs-Gruppengetriebe und Verfahren zur Betätigung eines Doppelkupplungs-Gruppengetriebes
SE535224C2 (sv) * 2010-10-13 2012-05-29 Scania Cv Ab Växellåda och motorfordon med sådan växellåda
CN103221242B (zh) * 2010-12-03 2015-12-02 本田技研工业株式会社 混合动力驱动装置
DE102011005028A1 (de) * 2011-03-03 2012-09-06 Zf Friedrichshafen Ag Doppelkupplungsgetriebe
DE102013200196A1 (de) * 2013-01-09 2014-07-10 Zf Friedrichshafen Ag Getriebe für ein Kraftfahrzeug
DE102013202045A1 (de) * 2013-02-07 2014-08-07 Zf Friedrichshafen Ag Gruppengetriebe eines Kraftfahrzeugs
DE102013204172A1 (de) * 2013-03-12 2014-09-18 Zf Friedrichshafen Ag Fahrzeuggetriebe
DE102013204918A1 (de) * 2013-03-20 2014-09-25 Zf Friedrichshafen Ag Fahrzeuggetriebe
SE1350394A1 (sv) * 2013-03-27 2014-09-28 Scania Cv Ab Växellåda, fordon med en sådan växellåda, förfarande för attstyra en sådan växellåda, datorprogram för att styra en sådan växellåda, samt en datorprogramprodukt innefattande programkod
DE102013210429A1 (de) 2013-06-05 2015-01-08 Zf Friedrichshafen Ag Getriebe für ein Kraftfahrzeug
SE538355C2 (sv) * 2013-11-21 2016-05-24 Scania Cv Ab Förfarande för att styra en hybriddrivlina i ett fordon så att glapp elimineras medelst en elmaskin
DE102014200689A1 (de) 2014-01-16 2015-07-16 Zf Friedrichshafen Ag Gruppengetriebe und Verfahren zum Betreiben des Gruppengetriebes
DE112014006297A5 (de) * 2014-01-29 2016-11-03 Magna powertrain gmbh & co kg Wechselgetriebe zur Realisierung von zumindest acht Vorwärtsgängen
DE102014202080A1 (de) * 2014-02-05 2015-08-06 Zf Friedrichshafen Ag Planetengetriebe sowie Gruppengetriebe mit einem Planetengetriebe
SE538915C2 (sv) 2014-05-27 2017-02-14 Scania Cv Ab Gruppväxellåda för fordon samt fordon, som innefattar en sådan gruppväxellåda
SE540417C2 (en) * 2014-05-27 2018-09-11 Scania Cv Ab Gearbox for vehicles and vehicles comprising such a gearbox
SE539659C2 (sv) * 2014-05-27 2017-10-24 Scania Cv Ab Växellåda för fordon samt fordon, som innefattar en sådan växellåda
DE102014215551A1 (de) 2014-08-06 2016-02-11 Zf Friedrichshafen Ag Kraftfahrzeuggruppengetriebe
SE1450970A1 (sv) * 2014-08-21 2016-02-22 Scania Cv Ab Transmission för fordon, fordon som innefattar en sådan transmission och -förfarande för att styra en transmission
SE539335C2 (sv) * 2014-12-18 2017-07-04 Scania Cv Ab A gear shifting device for a range gear in a gearbox
SE539177C2 (sv) * 2015-07-08 2017-05-02 Scania Cv Ab Method and system for changing gear in a vehicle gearbox comprising first and second gearbox units
DE102016015302A1 (de) * 2016-12-22 2018-06-28 Daimler Ag Gruppengetriebevorrichtung

Also Published As

Publication number Publication date
US11193568B2 (en) 2021-12-07
EP3580474A1 (en) 2019-12-18
SE540700C2 (sv) 2018-10-16
CN110249160A (zh) 2019-09-17
KR102272418B1 (ko) 2021-07-02
EP3580474A4 (en) 2020-11-04
WO2018147780A1 (en) 2018-08-16
EP3580474B1 (en) 2021-12-08
KR20190109757A (ko) 2019-09-26
BR112019015964A2 (pt) 2020-03-24
US20190376588A1 (en) 2019-12-12
CN110249160B (zh) 2022-06-21

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