JPS571859A - Pressure controller for oil-pressure circuit - Google Patents

Pressure controller for oil-pressure circuit

Info

Publication number
JPS571859A
JPS571859A JP7422080A JP7422080A JPS571859A JP S571859 A JPS571859 A JP S571859A JP 7422080 A JP7422080 A JP 7422080A JP 7422080 A JP7422080 A JP 7422080A JP S571859 A JPS571859 A JP S571859A
Authority
JP
Japan
Prior art keywords
pressure
swash plate
circuit
amount
signal
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
JP7422080A
Other languages
English (en)
Inventor
Kazuo Honma
Yoshio Nakajima
Eiki Izumi
Hiroshi Watanabe
Yukio Aoyanagi
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP7422080A priority Critical patent/JPS571859A/ja
Priority to EP81104271A priority patent/EP0041273B1/en
Priority to DE8181104271T priority patent/DE3165981D1/de
Priority to KR1019810001996A priority patent/KR850000749B1/ko
Priority to US06/270,569 priority patent/US4510750A/en
Publication of JPS571859A publication Critical patent/JPS571859A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Fluid Gearings (AREA)
JP7422080A 1980-06-04 1980-06-04 Pressure controller for oil-pressure circuit Pending JPS571859A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP7422080A JPS571859A (en) 1980-06-04 1980-06-04 Pressure controller for oil-pressure circuit
EP81104271A EP0041273B1 (en) 1980-06-04 1981-06-03 Circuit pressure control system for hydrostatic power transmission
DE8181104271T DE3165981D1 (en) 1980-06-04 1981-06-03 Circuit pressure control system for hydrostatic power transmission
KR1019810001996A KR850000749B1 (ko) 1980-06-04 1981-06-03 유압 전동장치에 있어서의 회로 압력제어장치
US06/270,569 US4510750A (en) 1980-06-04 1981-06-04 Circuit pressure control system for hydrostatic power transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7422080A JPS571859A (en) 1980-06-04 1980-06-04 Pressure controller for oil-pressure circuit

Publications (1)

Publication Number Publication Date
JPS571859A true JPS571859A (en) 1982-01-07

Family

ID=13540879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7422080A Pending JPS571859A (en) 1980-06-04 1980-06-04 Pressure controller for oil-pressure circuit

Country Status (1)

Country Link
JP (1) JPS571859A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131786A (ja) * 1983-01-19 1984-07-28 Hitachi Constr Mach Co Ltd 油圧ポンプの故障診断装置
JPS60108580A (ja) * 1983-11-15 1985-06-14 Hitachi Constr Mach Co Ltd 油圧ポンプの故障診断装置
JPS61265369A (ja) * 1985-05-17 1986-11-25 Komatsu Ltd 可変容量型油圧ポンプのカツトオフ制御装置
JPH04181064A (ja) * 1990-11-13 1992-06-29 Mitsubishi Agricult Mach Co Ltd 作業用走行車における油圧変速機構の変速制御装置
JP2011214597A (ja) * 2010-03-31 2011-10-27 Kubota Corp 走行駆動制御システム

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131786A (ja) * 1983-01-19 1984-07-28 Hitachi Constr Mach Co Ltd 油圧ポンプの故障診断装置
JPS60108580A (ja) * 1983-11-15 1985-06-14 Hitachi Constr Mach Co Ltd 油圧ポンプの故障診断装置
JPS61265369A (ja) * 1985-05-17 1986-11-25 Komatsu Ltd 可変容量型油圧ポンプのカツトオフ制御装置
JPH04181064A (ja) * 1990-11-13 1992-06-29 Mitsubishi Agricult Mach Co Ltd 作業用走行車における油圧変速機構の変速制御装置
JP2011214597A (ja) * 2010-03-31 2011-10-27 Kubota Corp 走行駆動制御システム

Similar Documents

Publication Publication Date Title
US4510750A (en) Circuit pressure control system for hydrostatic power transmission
JPS56139316A (en) Power loss reduction controller for oil-pressure type construction machine
ES2075412T3 (es) Dispositivo para controlar motores hidraulicos.
JPS571859A (en) Pressure controller for oil-pressure circuit
JPS5690159A (en) Controlling circuit for oil-pressure driving mechanism
JPS57197334A (en) Electric oil pressure controller for construction vehicle
JPS5740156A (en) Pressure control device in oil pressure circuit
JPS60154900A (ja) 油圧発生装置
JPS6319747B2 (ja)
JPS54128808A (en) Control method for gas booster or the like
JPS6139543B2 (ja)
JPS57184749A (en) Control device for hydraulic system
JPS57177407A (en) Flow regulation valve and hydraulic control valve for injection molding machine employing said valve
JPS57134064A (en) Controller for hydraulic system
JPH07180190A (ja) 背圧保償油圧回路
EP0558497B1 (en) Hydraulic circuit for an apparatus for generating pressure and apparatus using said hydraulic circuit
JPS56160459A (en) Pressure control unit for a hydraulic closed device
JP2837173B2 (ja) 制御弁装置
JPS5776282A (en) Hydraulc unit
JPS5681286A (en) Control system for number of pumps or others
JPH02144824U (ja)
JPS57177453A (en) Control device for oil hydraulic system
JPS6128857B2 (ja)
JPS5783702A (en) Fluid pressure differential circuit
JPS5740106A (en) Hydraulic pressure system controller