JPS6458857A - Shift controlling method for continuously variable transmission for vehicle - Google Patents
Shift controlling method for continuously variable transmission for vehicleInfo
- Publication number
- JPS6458857A JPS6458857A JP21387487A JP21387487A JPS6458857A JP S6458857 A JPS6458857 A JP S6458857A JP 21387487 A JP21387487 A JP 21387487A JP 21387487 A JP21387487 A JP 21387487A JP S6458857 A JPS6458857 A JP S6458857A
- Authority
- JP
- Japan
- Prior art keywords
- gear ratio
- driving wheel
- continuously variable
- variable transmission
- revolution
- 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.)
- Granted
Links
Landscapes
- Control Of Fluid Gearings (AREA)
- Control Of Transmission Device (AREA)
Abstract
PURPOSE:To secure proper driving force at an uneven ground by detecting a time variation of revolution speed of a driving wheel, and when exceeding the reference variation, keeping a gear ratio of a continuously variable transmission in the proximate value, or adjusting it to the gear ratio conformed to be estimated car speed. CONSTITUTION:A control circuit C of a hydraulic continuously variable transmission TM mounted on a roadability motorcycle sets the rotational frequency of an engine E and the revolution of a driving wheel Wr to be detected as a car speed by a sensor Sc down to a control factor, controlling the transmission TM. A time variation of the revolution of the driving wheel Wr is calculated, and when exceeding the reference variation, it is so judged that overspeed of the driving wheel due to a slip and a stop of the driving wheel are caused there, whereby a gear ratio of the continuously variable transmission TM is kept in the proximated gear ratio, or a control member 27 of a hydraulic motor is adjusted so as to become the gear ratio conformed to the estimated car speed. Thus, when it gets rid of a slip state and a lock state, proper driving force is securable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62213874A JP2730720B2 (en) | 1987-08-27 | 1987-08-27 | Shift control method for continuously variable transmission for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62213874A JP2730720B2 (en) | 1987-08-27 | 1987-08-27 | Shift control method for continuously variable transmission for vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6458857A true JPS6458857A (en) | 1989-03-06 |
JP2730720B2 JP2730720B2 (en) | 1998-03-25 |
Family
ID=16646447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62213874A Expired - Fee Related JP2730720B2 (en) | 1987-08-27 | 1987-08-27 | Shift control method for continuously variable transmission for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2730720B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04244660A (en) * | 1991-01-29 | 1992-09-01 | Nissan Motor Co Ltd | Shift controller for continuously variable transmission |
JP2017048883A (en) * | 2015-09-03 | 2017-03-09 | トヨタ自動車株式会社 | Control device of vehicle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5225971A (en) * | 1975-08-21 | 1977-02-26 | Takayuki Miyao | Control method of stepless speed change device |
JPS60192155A (en) * | 1984-03-13 | 1985-09-30 | Toyota Motor Corp | Slip preventing device for car |
JPS61161455U (en) * | 1985-03-29 | 1986-10-06 | ||
JPS6374732A (en) * | 1986-09-19 | 1988-04-05 | Nissan Motor Co Ltd | Speed change control device of continuously variable transmission |
-
1987
- 1987-08-27 JP JP62213874A patent/JP2730720B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5225971A (en) * | 1975-08-21 | 1977-02-26 | Takayuki Miyao | Control method of stepless speed change device |
JPS60192155A (en) * | 1984-03-13 | 1985-09-30 | Toyota Motor Corp | Slip preventing device for car |
JPS61161455U (en) * | 1985-03-29 | 1986-10-06 | ||
JPS6374732A (en) * | 1986-09-19 | 1988-04-05 | Nissan Motor Co Ltd | Speed change control device of continuously variable transmission |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04244660A (en) * | 1991-01-29 | 1992-09-01 | Nissan Motor Co Ltd | Shift controller for continuously variable transmission |
JP2017048883A (en) * | 2015-09-03 | 2017-03-09 | トヨタ自動車株式会社 | Control device of vehicle |
Also Published As
Publication number | Publication date |
---|---|
JP2730720B2 (en) | 1998-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |