JPS6452535A - Controller of continuously variable transmission - Google Patents
Controller of continuously variable transmissionInfo
- Publication number
- JPS6452535A JPS6452535A JP20982587A JP20982587A JPS6452535A JP S6452535 A JPS6452535 A JP S6452535A JP 20982587 A JP20982587 A JP 20982587A JP 20982587 A JP20982587 A JP 20982587A JP S6452535 A JPS6452535 A JP S6452535A
- Authority
- JP
- Japan
- Prior art keywords
- error
- flow rate
- variable transmission
- speed change
- continuously variable
- 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
Links
Landscapes
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Transmission Device (AREA)
Abstract
PURPOSE:To improve the control precision of variation speed in speed change ratio by determining an error between the actual value of oil flow into the primary hydraulic cylinder of a continuously variable transmission and the target value and determining the duty ratio of a speed change rate controlling solenoid valve so as to make the error zero. CONSTITUTION:A control unit receives various detected signals from a sensor 41 detecting the oil flow into the hydraulic cylinder of a primary pulley in a continuously variable transmission, and sensors 42-45 detecting the various operating states of both the continuous variable transmission and an engine. Based on both the actual speed change ratio calculated by a means 50 and the speed change rate calculated by a means 53, a means 56 calculates the target flow rate required for the hydraulic cylinder of the primary pulley. Additionally, a means 57 calculates the error between the actual flow rate detected by a sensor 41 and the target flow rate calculated by the means 56. Based on the error in flow rate calculated by the means 57, a means 58 determines the duty ratio so as to make the error in flow rate to be zero.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20982587A JPS6452535A (en) | 1987-08-24 | 1987-08-24 | Controller of continuously variable transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20982587A JPS6452535A (en) | 1987-08-24 | 1987-08-24 | Controller of continuously variable transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6452535A true JPS6452535A (en) | 1989-02-28 |
Family
ID=16579241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20982587A Pending JPS6452535A (en) | 1987-08-24 | 1987-08-24 | Controller of continuously variable transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6452535A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4042089A1 (en) * | 1989-12-28 | 1991-07-11 | Fuji Heavy Ind Ltd | CONTROL SYSTEM FOR A CONTINUOUSLY VARIABLE TRANSMISSION OF A FOUR-WHEEL MOTOR VEHICLE |
DE4042090A1 (en) * | 1989-12-28 | 1991-11-28 | Fuji Heavy Ind Ltd | TRANSLATION RATIO CONTROL SYSTEM OF A CONTINUOUSLY VARIABLE GEARBOX FOR A MOTOR VEHICLE |
-
1987
- 1987-08-24 JP JP20982587A patent/JPS6452535A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4042089A1 (en) * | 1989-12-28 | 1991-07-11 | Fuji Heavy Ind Ltd | CONTROL SYSTEM FOR A CONTINUOUSLY VARIABLE TRANSMISSION OF A FOUR-WHEEL MOTOR VEHICLE |
DE4042090A1 (en) * | 1989-12-28 | 1991-11-28 | Fuji Heavy Ind Ltd | TRANSLATION RATIO CONTROL SYSTEM OF A CONTINUOUSLY VARIABLE GEARBOX FOR A MOTOR VEHICLE |
US5113718A (en) * | 1989-12-28 | 1992-05-19 | Fuji Jukogyo Kabushiki Kaisha | Transmission ratio control system of a continuously variable transmission for a motor vehicle |
US5152191A (en) * | 1989-12-28 | 1992-10-06 | Fuji Jukogyo Kabushiki Kaisha | Control system of a continuously variable transmission for a four-wheel motor vehicle |
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