JPS6452535A - Controller of continuously variable transmission - Google Patents

Controller of continuously variable transmission

Info

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
Application number
JP20982587A
Other languages
Japanese (ja)
Inventor
Hiroshi Tanaka
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.)
Subaru Corp
Original Assignee
Fuji Heavy Industries 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 Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP20982587A priority Critical patent/JPS6452535A/en
Publication of JPS6452535A publication Critical patent/JPS6452535A/en
Pending legal-status Critical Current

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.
JP20982587A 1987-08-24 1987-08-24 Controller of continuously variable transmission Pending JPS6452535A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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