JPS6446052A - Automatic speed change gear - Google Patents

Automatic speed change gear

Info

Publication number
JPS6446052A
JPS6446052A JP63135373A JP13537388A JPS6446052A JP S6446052 A JPS6446052 A JP S6446052A JP 63135373 A JP63135373 A JP 63135373A JP 13537388 A JP13537388 A JP 13537388A JP S6446052 A JPS6446052 A JP S6446052A
Authority
JP
Japan
Prior art keywords
speed
engine
realized
centrifugal clutch
gear wheel
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
JP63135373A
Other languages
Japanese (ja)
Inventor
Jiyoofuerii Saikesu Richiyaado
Resurii Samueru
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.)
Ricardo PLC
Original Assignee
Ricardo Consulting Engineers 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 Ricardo Consulting Engineers Ltd filed Critical Ricardo Consulting Engineers Ltd
Publication of JPS6446052A publication Critical patent/JPS6446052A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • 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
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed 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
    • F16H3/087—Toothed 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
    • F16H3/089—Toothed 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 all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
    • 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
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed 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
    • F16H3/10—Toothed 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 with one or more one-way clutches as an essential feature
    • 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
    • F16H61/0293—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 purely mechanical
    • F16H61/0295—Automatic gear shift control, e.g. initiating shift by centrifugal forces

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)
  • Arrangement Of Transmissions (AREA)
  • Control Of Transmission Device (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

PURPOSE: To minimize the device and enable engine-brake to work at a reduced speed by making an input or output gear wheel rotate at a high or low speed with a load-sensitive centrifugal clutch and enabling a plurality of automatic engagements in response to the vehicle speed with a plurality of speed-sensitive centrifugal clutches. CONSTITUTION: When engine speed is raised, a load-sensitive centrifugal clutch 22 comes in to engage a drum 20 and connect a gear wheel 8 with an input shaft 2 so that engagement of the first speed at high speed side is realized. In the meantime, as the engine speed is lower than the first speed at low speed side, the vehicle speed does not respond immediately. As vehicle speed is being raised gradually, a speed-sensitive centrifugal clutch 28 is engaged so that engagement of the second speed at high speed side is realized, i.e., engagement according to predetermined vehicle speed but irrelative to engine speed is realized. Then a speed-sensitive centrifugal clutch 26 comes in and engine speed is raised gradually until the input gear wheel rotates at the rotating speed of the engine so that the third speed at high speed side is realized. In the meantime, the engine speed is once again lower. It is being accelerated with less throttle opening until it reaches the maximum vehicle speed.
JP63135373A 1987-06-02 1988-06-01 Automatic speed change gear Pending JPS6446052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08712862A GB2205366A (en) 1987-06-02 1987-06-02 Automatic gearboxes having centrifugal clutches

Publications (1)

Publication Number Publication Date
JPS6446052A true JPS6446052A (en) 1989-02-20

Family

ID=10618245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63135373A Pending JPS6446052A (en) 1987-06-02 1988-06-01 Automatic speed change gear

Country Status (4)

Country Link
JP (1) JPS6446052A (en)
KR (1) KR890000309A (en)
GB (1) GB2205366A (en)
IT (1) IT1219634B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012202480A (en) * 2011-03-25 2012-10-22 Honda Motor Co Ltd Power transmission device and method for controlling the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2020582C (en) * 1990-07-23 1994-04-05 Sheng-Tsai Tseng Transmission
CN1055438C (en) * 1994-03-05 2000-08-16 曾盛财 Speed-variable gearing system for automobile
JP2943610B2 (en) * 1994-06-24 1999-08-30 トヨタ自動車株式会社 Transmission control device for vehicle transmission
JP2006528100A (en) * 2003-07-21 2006-12-14 ノーティテック プロプライエタリー リミテッド Multi-speed transmission

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB506861A (en) * 1937-03-17 1939-06-06 Charles Edouard Henriod Junior Improvements in or relating to variable speed transmission mechanisms
GB633494A (en) * 1947-04-22 1949-12-19 Self Changing Gear Company Ltd Improvements in or relating to centrifugally operated clutches
GB711213A (en) * 1949-12-06 1954-06-30 Fritz Kreis Improved change speed gear for motor vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012202480A (en) * 2011-03-25 2012-10-22 Honda Motor Co Ltd Power transmission device and method for controlling the same

Also Published As

Publication number Publication date
IT8848043A0 (en) 1988-06-01
KR890000309A (en) 1989-03-13
GB8712862D0 (en) 1987-07-08
IT1219634B (en) 1990-05-24
GB2205366A (en) 1988-12-07

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