WO2020194847A1 - 自動変速機 - Google Patents

自動変速機 Download PDF

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Publication number
WO2020194847A1
WO2020194847A1 PCT/JP2019/044468 JP2019044468W WO2020194847A1 WO 2020194847 A1 WO2020194847 A1 WO 2020194847A1 JP 2019044468 W JP2019044468 W JP 2019044468W WO 2020194847 A1 WO2020194847 A1 WO 2020194847A1
Authority
WO
WIPO (PCT)
Prior art keywords
control valve
valve assembly
automatic transmission
drain port
pressure
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.)
Ceased
Application number
PCT/JP2019/044468
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
ジヨンホ パク
ユヒヨン ナム
ジヨンイル パク
榊原　健二
坪井　浩之
彰子 今井
宏樹 齊藤
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.)
Nissan Motor Co Ltd
JATCO Ltd
Original Assignee
Nissan Motor Co Ltd
JATCO Ltd
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 Nissan Motor Co Ltd, JATCO Ltd filed Critical Nissan Motor Co Ltd
Priority to US17/442,266 priority Critical patent/US20220154818A1/en
Priority to JP2021508715A priority patent/JP7202446B2/ja
Priority to CN201980093893.XA priority patent/CN113557383B/zh
Publication of WO2020194847A1 publication Critical patent/WO2020194847A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0262—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 characterised by the signals used the signals being hydraulic
    • F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
    • 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
    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0262—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 characterised by the signals used the signals being hydraulic
    • F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
    • F16H2061/0279—Details of hydraulic valves, e.g. lands, ports, spools or springs

Definitions

  • the present invention relates to an automatic transmission.
  • Patent Document 1 discloses an automatic transmission having a built-in control valve and a control valve assembly having a drain port that communicates with the outside.
  • the present invention has been made in view of such technical problems, and an object of the present invention is to provide an automatic transmission provided with a control valve assembly that suppresses large deformation.
  • the automatic transmission provided with the control valve assembly of the present invention is characterized in that the control valve assembly is provided with a reinforcing portion straddling a drain port that communicates the inside and the outside of the control valve assembly.
  • FIG. 5 is a schematic view seen from the side of an automatic transmission including the control valve assembly of the first embodiment. It is a perspective view seen from the lower body side of the control valve assembly of Embodiment 1.
  • FIG. 2 is a cross-sectional view taken along the line AA of FIG.
  • FIG. 1 is a schematic view of an automatic transmission AT including the control valve assembly 1 of the first embodiment as viewed from the side surface.
  • the automatic transmission AT has a control valve assembly 1 having a built-in control valve and a drain port for communicating with the outside, which is composed of a lower body 2 and an upper body 3.
  • FIG. 2 is a perspective view of the control valve assembly 1 of the first embodiment as viewed from the lower body side
  • FIG. 3 is a sectional view taken along the line AA of FIG.
  • the lower body 2 includes a pressure regulator valve (control valve for control) 6 that regulates the line pressure PL that is the main pressure of the hydraulic oil of the automatic transmission AT, and a lockup control valve (control) that controls the operation of a lockup clutch (not shown).
  • Control valve) 7 etc. are housed.
  • a plurality of solenoids 5 for generating control pressure for controlling the pressure regulator valve 6, the lockup control valve 7, and the like are arranged on the side surface of the lower body 2.
  • the lower body 2 of the control valve assembly 1 is integrated with the upper body 3 via a separate plate 4 by a plurality of fastening bolts B.
  • the lower body 2 including the pressure regulator valve 6 for adjusting the pressure of the hydraulic oil of the automatic transmission AT is provided with a drain port 2a for adjusting the pressure.
  • a rib R on the outer surface of the lower body 2, parallel to the axial center P of the spool 9 of the pressure regulator valve 6) straddling the drain port 2a ( The reinforcing portion) is formed to have a length substantially the same as the axial length of the spool 9.
  • a bore 10 is formed inside the lower body 2, and the spool 9 of the pressure regulator valve 6 is housed in the bore 10.
  • the adapter 11 is press-fitted and fixed to the right end portion in the drawing.
  • the spool 9 is slidably housed in the bore 10 via a spring 8 arranged between the adapter 11 and the land 9d of the spool 9.
  • the lower body 2 between the adapter 11 and the land 9d of the spool 9 is formed with a port 2f to which hydraulic oil of the solenoid pressure Psol for line pressure control controlled by the solenoid 5 for line pressure control is supplied.
  • a port 2e for supplying the hydraulic oil of the torque converter pressure Pt to a torque converter (not shown) is formed in the lower body 2 between the lands 9d and the lands 9c of the spool 9. Further, the lower body 2 between the lands 9c and the lands 9b of the spool 9 is formed with a port 2d to which the hydraulic oil of the oil pump discharge pressure discharged by the oil pump (not shown) is supplied.
  • the spool 9 of the pressure regulator valve 6 is an oil pump due to the balance between the line pressure control solenoid pressure Psol supplied to the port 2f and the urging force of the spring 8 and the feedback pressure Pfb (line pressure PL) supplied to the feedback port 2b.
  • the line pressure PL is adjusted and generated by discharging the hydraulic oil of the discharge pressure to the drain port 2a and the port 2e formed in the lower body 2 between the lands 9b and the lands 9a of the spool 9.
  • the drain port 2c discharges the leaked hydraulic oil.
  • the drain port 2a is closed by the rib R.
  • the drain port 2a since the drain port 2a is open in the direction orthogonal to the axial center P of the spool 9, there is no problem with the operation of the pressure regulator valve 6. As a result, the rigidity in the vicinity of the drain port 2a that communicates the inside and the outside of the control valve assembly 1 can be increased, and large deformation can be suppressed.
  • the automatic transmission AT including the control valve assembly 1 of the first embodiment has the effects listed below.
  • a rib R is formed on the outer surface of the lower body 2 in parallel with the axial center P of the spool 9 of the pressure regulator valve 6 and straddling the drain port 2a having a length substantially the same as the axial length of the spool 9. I made it. Therefore, the rigidity in the vicinity where the drain port 2a is formed can be increased, and large deformation can be suppressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
PCT/JP2019/044468 2019-03-27 2019-11-13 自動変速機 Ceased WO2020194847A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/442,266 US20220154818A1 (en) 2019-03-27 2019-11-13 Automatic transmission
JP2021508715A JP7202446B2 (ja) 2019-03-27 2019-11-13 自動変速機
CN201980093893.XA CN113557383B (zh) 2019-03-27 2019-11-13 自动变速器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019059694 2019-03-27
JP2019-059694 2019-03-27

Publications (1)

Publication Number Publication Date
WO2020194847A1 true WO2020194847A1 (ja) 2020-10-01

Family

ID=72611264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/044468 Ceased WO2020194847A1 (ja) 2019-03-27 2019-11-13 自動変速機

Country Status (4)

Country Link
US (1) US20220154818A1 (https=)
JP (1) JP7202446B2 (https=)
CN (1) CN113557383B (https=)
WO (1) WO2020194847A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062643U (ja) * 1983-10-06 1985-05-01 日産自動車株式会社 自動変速機のバルブボデイ
JPH02110750U (https=) * 1989-02-22 1990-09-05
US5235746A (en) * 1992-03-19 1993-08-17 Atlas Fluid Controls Inc. Method of manufacturing a high-capacity servo valve body

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3670024B2 (ja) * 1993-03-19 2005-07-13 ジヤトコ株式会社 変速機の油圧制御装置
JP4861455B2 (ja) * 2009-07-15 2012-01-25 ジヤトコ株式会社 自動変速機
DE102013221218A1 (de) * 2013-10-18 2015-04-23 Robert Bosch Gmbh Schieberventil, insbesondere für ein Automatikgetriebe eines Kraftfahrzeugs
US10302191B2 (en) * 2015-07-21 2019-05-28 Mazda Motor Corporation Automatic transmission and method of manufacturing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062643U (ja) * 1983-10-06 1985-05-01 日産自動車株式会社 自動変速機のバルブボデイ
JPH02110750U (https=) * 1989-02-22 1990-09-05
US5235746A (en) * 1992-03-19 1993-08-17 Atlas Fluid Controls Inc. Method of manufacturing a high-capacity servo valve body

Also Published As

Publication number Publication date
CN113557383B (zh) 2023-03-14
JPWO2020194847A1 (https=) 2020-10-01
CN113557383A (zh) 2021-10-26
US20220154818A1 (en) 2022-05-19
JP7202446B2 (ja) 2023-01-11

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