JPS57200756A - Controller for hydraulic pressure type transmission - Google Patents

Controller for hydraulic pressure type transmission

Info

Publication number
JPS57200756A
JPS57200756A JP8418881A JP8418881A JPS57200756A JP S57200756 A JPS57200756 A JP S57200756A JP 8418881 A JP8418881 A JP 8418881A JP 8418881 A JP8418881 A JP 8418881A JP S57200756 A JPS57200756 A JP S57200756A
Authority
JP
Japan
Prior art keywords
hydraulic pressure
pump
speed
swash plate
controller
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
JP8418881A
Other languages
Japanese (ja)
Inventor
Tomiya Tanno
Daisuke Yoshida
Takeshi Fukunaga
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP8418881A priority Critical patent/JPS57200756A/en
Publication of JPS57200756A publication Critical patent/JPS57200756A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

PURPOSE:To make constitution of a control system simple and to carry out control of a speed change smoothly, by controlling a tilting angle of a swash plate of a variable capacity hydraulic pressure pump and a motor electrically through an engine speed, car speed instructions and speed reduction instructions. CONSTITUTION:A driving wheel is driven by discharge oil of a hydraulic pressure pump 11 to be rotated and driven by connecting the pump 11 with an output shaft 1a of an engine 1, and a discharge direction and a discharge quantity of hydraulic operating oil of the hydraulic pressure pump 11 are controlled by a pump swash plate servo 14. This servo 14 is made to control a tilting direction and a tilting angle of a swash plate 11b according to polarity and size of a pump capacity change signal Sp from a controller 20, and the hydraulic pressure motor 12 is controlled similarly by a motor swash plate servo 15. A control signal is applied to each of servoes 14 and 15 by the controller 20 according to instructions of locations for a throttle lever 2, car speed setting lever 3 and a brake pedal 4 and a speed of this engine.
JP8418881A 1981-06-01 1981-06-01 Controller for hydraulic pressure type transmission Pending JPS57200756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8418881A JPS57200756A (en) 1981-06-01 1981-06-01 Controller for hydraulic pressure type transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8418881A JPS57200756A (en) 1981-06-01 1981-06-01 Controller for hydraulic pressure type transmission

Publications (1)

Publication Number Publication Date
JPS57200756A true JPS57200756A (en) 1982-12-09

Family

ID=13823495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8418881A Pending JPS57200756A (en) 1981-06-01 1981-06-01 Controller for hydraulic pressure type transmission

Country Status (1)

Country Link
JP (1) JPS57200756A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01176853A (en) * 1987-12-28 1989-07-13 Shimadzu Corp Speed reduction control device for continuously variable transmission
US4984161A (en) * 1987-03-24 1991-01-08 Honda Giken Kogyo Kabushiki Kaisha Method for controlling automatic transmissions
EP0491944A1 (en) * 1989-08-30 1992-07-01 Kabushiki Kaisha Komatsu Seisakusho Speed change controller of running hydraulic motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125662A (en) * 1974-08-27 1976-03-02 Aisin Seiki MUDANHENSOKUKITSUKISHARYO NO SUKITSUDOSEIGYO SOCHI
JPS5284644A (en) * 1975-11-03 1977-07-14 Sundstrand Corp Electronic course controlling system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125662A (en) * 1974-08-27 1976-03-02 Aisin Seiki MUDANHENSOKUKITSUKISHARYO NO SUKITSUDOSEIGYO SOCHI
JPS5284644A (en) * 1975-11-03 1977-07-14 Sundstrand Corp Electronic course controlling system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984161A (en) * 1987-03-24 1991-01-08 Honda Giken Kogyo Kabushiki Kaisha Method for controlling automatic transmissions
JPH01176853A (en) * 1987-12-28 1989-07-13 Shimadzu Corp Speed reduction control device for continuously variable transmission
EP0491944A1 (en) * 1989-08-30 1992-07-01 Kabushiki Kaisha Komatsu Seisakusho Speed change controller of running hydraulic motor
US5323611A (en) * 1989-08-30 1994-06-28 Kabushiki Kaisha Komatsu Seisakusho Speed change controller of running hydraulic motor

Similar Documents

Publication Publication Date Title
US4754824A (en) Method and apparatus for steering a vehicle
FR2442740B1 (en) HYDRAULIC CIRCUIT FOR A HYDRAULICALLY DRIVEN VEHICLE
US4802336A (en) Hydrostatic transmission having a control and regulating device for adjusting the driving torque with superimposed output power limit regulation
JPH0217702B2 (en)
US4341133A (en) Control system for a hydraulically driven vehicle
JPS6435169A (en) Hydraulic control device for vehicle continuously variable transmission
US4246807A (en) Apparatus for control of a continuously variable belt drive for operating a vehicle
US4557343A (en) Power steering control apparatus and method
EP0164842A3 (en) Power assistance steering systems for vehicles
JPS57200756A (en) Controller for hydraulic pressure type transmission
JPS56160454A (en) Velocity ratio control unit for a stepless transmission
US4457392A (en) Automatic speed control systems
US3954047A (en) Transmission coupling apparatus
US20040074691A1 (en) Virtual braking system for hydrostatically driven vehicle
JPH0321333Y2 (en)
JP2000130557A (en) Neutral control method for hydro-mechanical transmission
JPH09301016A (en) Travel control device for hydraulically operated vehicle
JPH0818574B2 (en) Hydrostatic turning control device
JP2695645B2 (en) Motor control device for hydraulically driven vehicle
JPS61206802A (en) Fluid control device actuated through control of electric motor
JPS6440759A (en) Hydraulic speed changer for vehicle
US3609964A (en) Regulated hydraulic drive
JPS63235173A (en) Hydraulic steering device
JPH01116371A (en) Changeover device for traveling speed of snow vehicle
JPS6440757A (en) Controller for continuously variable transmission