JPS6422773A - Controller for hydraulic elevator - Google Patents

Controller for hydraulic elevator

Info

Publication number
JPS6422773A
JPS6422773A JP62178295A JP17829587A JPS6422773A JP S6422773 A JPS6422773 A JP S6422773A JP 62178295 A JP62178295 A JP 62178295A JP 17829587 A JP17829587 A JP 17829587A JP S6422773 A JPS6422773 A JP S6422773A
Authority
JP
Japan
Prior art keywords
elevating
oil
control valve
hydraulic pump
flow
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
JP62178295A
Other languages
Japanese (ja)
Inventor
Tatsuo Miyake
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62178295A priority Critical patent/JPS6422773A/en
Publication of JPS6422773A publication Critical patent/JPS6422773A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

Landscapes

  • Elevator Control (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To reduce the pressure loss at the time of elevating operation, and to reduce the power consumption of the electric motor for a hydraulic pump by connecting a flow detector both with an elevating control valve and with a lowering control valve in series. CONSTITUTION: When a hydraulic pump 3 is driven by an electric motor 4, the oil in an oil tank 11 is forcibly fed to a hydraulic jack 2 through a check valve 7. At this time, a part or the entire of the oil discharged from the hydraulic pump 3 is returned to the oil tank 11 through an elevation control valve 5 and a flow detector 10. The flow rate of this return oil is detected by the flow detector 10, and this is compared with the flow-rate command value denoted by the output pattern of an elevating traveling pattern generating circuit 13 by means of a comparator 15, and the deviation thereof is input into a velocity control circuit 16 to calculate a velocity control command value. When the elevation control valve 5 receives an elevating operation command from an elevating operation command circuit 17, the flow rate of the return oil to the oil tank 11 is controlled in accordance with the velocity control command value. Thus, the speed of a car 1 is controlled in accordance with the elevating traveling pattern.
JP62178295A 1987-07-17 1987-07-17 Controller for hydraulic elevator Pending JPS6422773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62178295A JPS6422773A (en) 1987-07-17 1987-07-17 Controller for hydraulic elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62178295A JPS6422773A (en) 1987-07-17 1987-07-17 Controller for hydraulic elevator

Publications (1)

Publication Number Publication Date
JPS6422773A true JPS6422773A (en) 1989-01-25

Family

ID=16045973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62178295A Pending JPS6422773A (en) 1987-07-17 1987-07-17 Controller for hydraulic elevator

Country Status (1)

Country Link
JP (1) JPS6422773A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006322486A (en) * 2005-05-18 2006-11-30 Eiko Denki Kogyo Kk On-vehicle power unit control method and its device
JP2008275073A (en) * 2007-04-27 2008-11-13 Eiko Denki Kogyo Kk Power unit for lift and control method for lift
CN109019396A (en) * 2018-09-13 2018-12-18 徐州卓控科技有限公司 One kind being automatically prevented from hydraulic jack oil return apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006322486A (en) * 2005-05-18 2006-11-30 Eiko Denki Kogyo Kk On-vehicle power unit control method and its device
JP2008275073A (en) * 2007-04-27 2008-11-13 Eiko Denki Kogyo Kk Power unit for lift and control method for lift
CN109019396A (en) * 2018-09-13 2018-12-18 徐州卓控科技有限公司 One kind being automatically prevented from hydraulic jack oil return apparatus

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