JPS54126862A - Velocity ratio controller for stepless transmission of vehicle - Google Patents

Velocity ratio controller for stepless transmission of vehicle

Info

Publication number
JPS54126862A
JPS54126862A JP3576478A JP3576478A JPS54126862A JP S54126862 A JPS54126862 A JP S54126862A JP 3576478 A JP3576478 A JP 3576478A JP 3576478 A JP3576478 A JP 3576478A JP S54126862 A JPS54126862 A JP S54126862A
Authority
JP
Japan
Prior art keywords
velocity ratio
control valve
ratio control
line
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.)
Granted
Application number
JP3576478A
Other languages
Japanese (ja)
Other versions
JPS6053220B2 (en
Inventor
Seishi Mizuno
Masanori Sato
Hiroaki Maeda
Shigeo Takahashi
Misozo Suzuki
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.)
Aisin Corp
Original Assignee
Aisin Seiki Co 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP3576478A priority Critical patent/JPS6053220B2/en
Publication of JPS54126862A publication Critical patent/JPS54126862A/en
Publication of JPS6053220B2 publication Critical patent/JPS6053220B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Transmission Device (AREA)

Abstract

PURPOSE: To obtain a stable high actuator driving pressure, by amplifying the difference between the actual revolution speed of an engine and a speed command by a pilot valve and applying the amplified difference to a velocity ratio control valve to amplify the difference further.
CONSTITUTION: When the speed command corresponding to the lift of a cam 22 interlocked with an accelerator pedal 10 is higher than the actual revolution speed obtained from an engine governor G1, the pressure of a line P26 is higher than that in the neutral state and a piston of the velocity ratio control valve 220 is driven leftward. At that time, a line P14 is connected to a drain C, line P15 is connected to a line P25 and the velocity ratio is reduced by an actuator 300. the throttle opening degree differential pressure of a differential control valve 240 is applied to ports of the velocity ratio control valve 220 and a velocity ratio control pilot valve 230 to produce a higher compensating effect by the amplifying action of the pilot valve 230 than a compensating oil pressure applied to the port of the velocity ratio control valve 220.
COPYRIGHT: (C)1979,JPO&Japio
JP3576478A 1978-03-27 1978-03-27 Speed ratio control device for continuously variable transmission for vehicles Expired JPS6053220B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3576478A JPS6053220B2 (en) 1978-03-27 1978-03-27 Speed ratio control device for continuously variable transmission for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3576478A JPS6053220B2 (en) 1978-03-27 1978-03-27 Speed ratio control device for continuously variable transmission for vehicles

Publications (2)

Publication Number Publication Date
JPS54126862A true JPS54126862A (en) 1979-10-02
JPS6053220B2 JPS6053220B2 (en) 1985-11-25

Family

ID=12450914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3576478A Expired JPS6053220B2 (en) 1978-03-27 1978-03-27 Speed ratio control device for continuously variable transmission for vehicles

Country Status (1)

Country Link
JP (1) JPS6053220B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61175169A (en) * 1985-01-30 1986-08-06 岸　秀樹 Car

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62165931U (en) * 1986-04-14 1987-10-21
JPH0612329U (en) * 1992-02-15 1994-02-15 株式会社タイガークラウン Container body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61175169A (en) * 1985-01-30 1986-08-06 岸　秀樹 Car

Also Published As

Publication number Publication date
JPS6053220B2 (en) 1985-11-25

Similar Documents

Publication Publication Date Title
JPS56134658A (en) Controller for torque ratio of v-bent type stepless transmission for vehicle
JPS56138556A (en) Hydraulic pressure controlling apparatus for v-belt type stepless transmission for vehicle
JPS57167529A (en) Control system for torque convertor equipped with direct connection clutch
JPS5695722A (en) Automatic clutch controller for hydraulic transmission for vehicle
JPS5643034A (en) Four wheel drive with automatic transmission
JPS54109569A (en) Down-shift timing adjusting method of throttle control valve and automatic transmission for cars
EP0385058A3 (en) Pilot operated variable force solenoid valve in an automatic transmission control circuit
JPS6412928A (en) Constant-speed travel device for vehicle
JPS63259257A (en) Hydraulic controller of automatic transmission
JPS57173533A (en) Controller of device containing internal combustion engine and oil hydraulic pump
US4444297A (en) Control system for a fluid pressure engaged clutch
JPS54126862A (en) Velocity ratio controller for stepless transmission of vehicle
GB1509519A (en) Multi-ratio drive transmissions
JPS6412930A (en) Constant-speed travel device for vehicle
GB1336705A (en) Lock-up clutch controls
JPS5815329B2 (en) Jido Kuratsuchinohatsushinseigiyohoushiki
GB1254809A (en) Control systems for positive-displacement hydraulic transmissions
JPS5643033A (en) Four wheel drive with automatic transmission
JP2504574B2 (en) Control device for engine and continuously variable transmission drive system
JPS56167946A (en) Speed ratio controller for stepless transmission
JPS55123041A (en) Hydraulic controller of automatic transmission
JPS5680506A (en) Control circuit for actuator
JPH02176263A (en) Speed change control device for automatic transmission
JPS552883A (en) Swash plate control system of motor for car having automatic hydraulic transmission
JPS6449760A (en) Control device for oil pressure of belt type continuously variable transmission of vehicle