JPS6465357A - Hydraulic control device for v-belt type continuously variable transmission - Google Patents

Hydraulic control device for v-belt type continuously variable transmission

Info

Publication number
JPS6465357A
JPS6465357A JP21977487A JP21977487A JPS6465357A JP S6465357 A JPS6465357 A JP S6465357A JP 21977487 A JP21977487 A JP 21977487A JP 21977487 A JP21977487 A JP 21977487A JP S6465357 A JPS6465357 A JP S6465357A
Authority
JP
Japan
Prior art keywords
oil pressure
solenoid valve
clutch
load thrust
thrust
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
JP21977487A
Other languages
Japanese (ja)
Other versions
JPH0762499B2 (en
Inventor
Hiroshi Aikawa
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.)
Daihatsu Motor Co Ltd
Original Assignee
Daihatsu Motor 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 Daihatsu Motor Co Ltd filed Critical Daihatsu Motor Co Ltd
Priority to JP62219774A priority Critical patent/JPH0762499B2/en
Publication of JPS6465357A publication Critical patent/JPS6465357A/en
Publication of JPH0762499B2 publication Critical patent/JPH0762499B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Transmission Devices (AREA)
  • Control Of Transmission Device (AREA)

Abstract

PURPOSE:To simplify a control system and to improve reliability, by a method wherein a load thrust control oil pressure and a starting clutch oil pressure having a proportional relation with transmission torque are controlled through a single solenoid valve. CONSTITUTION:During idling before starting, a signal oil pressure P2 of a solenoid valve 302 for controlling load thrust is zero, an output oil pressure P4 of a clutch control valve 160 is reduced to a low value through the force of springs 170 and 171, and a starting clutch 20 is in a half-clutch state. When a throttle is opened to a specified opening or more, the duty ratio of the solenoid valve 302 for controlling load thrust is gradually increased along with an engine generation torque, and the engaging force of the starting clutch 20 is increased to start starting. Simultaneously, a load thrust control valve 210 is actuated, and an oil pressure in an oil chamber 17 for controlling load thrust is also increased. However, the signal oil pressure of a solenoid valve 301 for controlling a speed change ratio is controlled to a specified value or less, the thrust of a pulley 12 on the drive side is low, that on the driven side is high and kept at a minimum speed ratio, and transfer to speed change control is effected. This constitution enables simplification of a control system, and improvement of reliability.
JP62219774A 1987-09-02 1987-09-02 Hydraulic control device for V-belt type continuously variable transmission Expired - Fee Related JPH0762499B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62219774A JPH0762499B2 (en) 1987-09-02 1987-09-02 Hydraulic control device for V-belt type continuously variable transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62219774A JPH0762499B2 (en) 1987-09-02 1987-09-02 Hydraulic control device for V-belt type continuously variable transmission

Publications (2)

Publication Number Publication Date
JPS6465357A true JPS6465357A (en) 1989-03-10
JPH0762499B2 JPH0762499B2 (en) 1995-07-05

Family

ID=16740795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62219774A Expired - Fee Related JPH0762499B2 (en) 1987-09-02 1987-09-02 Hydraulic control device for V-belt type continuously variable transmission

Country Status (1)

Country Link
JP (1) JPH0762499B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090833A1 (en) * 2004-03-19 2005-09-29 Daimlerchrysler Ag Method for operating a drive train for a motor vehicle
JP2008127889A (en) * 2006-11-22 2008-06-05 Komatsu Ltd Counterweight mounting structure and construction machine equipped with the same
JP2016500431A (en) * 2012-12-19 2016-01-12 シェフラー テクノロジーズ アー・ゲー ウント コー． カー・ゲーＳｃｈａｅｆｆｌｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ ＡＧ ＆ Ｃｏ． ＫＧ Multi-range CVT

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999154A (en) * 1982-11-30 1984-06-07 Aisin Warner Ltd Hydraulic controller of automatic stepless speed changer for vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999154A (en) * 1982-11-30 1984-06-07 Aisin Warner Ltd Hydraulic controller of automatic stepless speed changer for vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090833A1 (en) * 2004-03-19 2005-09-29 Daimlerchrysler Ag Method for operating a drive train for a motor vehicle
JP2008127889A (en) * 2006-11-22 2008-06-05 Komatsu Ltd Counterweight mounting structure and construction machine equipped with the same
JP2016500431A (en) * 2012-12-19 2016-01-12 シェフラー テクノロジーズ アー・ゲー ウント コー． カー・ゲーＳｃｈａｅｆｆｌｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ ＡＧ ＆ Ｃｏ． ＫＧ Multi-range CVT

Also Published As

Publication number Publication date
JPH0762499B2 (en) 1995-07-05

Similar Documents

Publication Publication Date Title
US4462277A (en) Hydraulic regulator for a V-belt type continuously variable transmission for vehicles
US4470117A (en) Control system for a continuously variable transmission for vehicles
US4459879A (en) Torque ratio control device for a V-belt type continuously variable transmission for vehicles
US4476746A (en) Hydraulic regulator for a V-belt type continuously variable transmission for vehicles
US5314385A (en) System for cooling a starting clutch of a continuously variable transmission
US5042325A (en) Control system for steplessly variable power transmission
EP0801253A3 (en) Apparatus for controlling lock-up clutch
KR900700318A (en) Vehicle Power Unit
EP0231647A2 (en) Transmission ratio control system for a continuously variable transmission
EP0367551A3 (en) Control system for torque converter of automatic transmission
US4953679A (en) Slip control system for lock-up clutch of automatic transmission
EP0297727A3 (en) System for controlling a continuously variable transmission having a torque converter
GB2077373A (en) Shift Control Mechanism in an Automatic Transmission for Vehicles
US4747807A (en) Control system for an infinitely variable transmission
US4419910A (en) Shift control mechanism in an automatic transmission for vehicles
EP0207603B1 (en) Control system for an infinitely variable transmission
EP0207228A1 (en) Control system for an infinitely variable transmission
JPS6465357A (en) Hydraulic control device for v-belt type continuously variable transmission
JP3430874B2 (en) Hydraulic control device for continuously variable transmission
JPS6444338A (en) Method of controlling clutch in continuously variable transmission
GB2076482A (en) Hydraulic regulator for a V-belt type continuously variable transmission for vehicles
EP0141676A3 (en) Power drive system
JPS6449760A (en) Control device for oil pressure of belt type continuously variable transmission of vehicle
JPS5737146A (en) Hydraulic pressure regulator for v-belt type infinitely variable speed change gear for vehicle
JPH0765677B2 (en) Controller for continuously variable transmission

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees