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GB1236116A - Speed control system for elevators - Google Patents

Speed control system for elevators

Info

Publication number
GB1236116A
GB1236116A GB45227/69A GB4522769A GB1236116A GB 1236116 A GB1236116 A GB 1236116A GB 45227/69 A GB45227/69 A GB 45227/69A GB 4522769 A GB4522769 A GB 4522769A GB 1236116 A GB1236116 A GB 1236116A
Authority
GB
United Kingdom
Prior art keywords
amplifier
lift
speed control
comparator
control system
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.)
Expired
Application number
GB45227/69A
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Publication of GB1236116A publication Critical patent/GB1236116A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/285—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical with the use of a speed pattern generator
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/90—Specific system operational feature
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/90—Specific system operational feature
    • Y10S388/904—Stored velocity profile
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/91—Operational/differential amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
  • Control Of Electric Motors In General (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

1,236,116. Automatic speed control. HITACHI Ltd. Sept. 12, 1969 [Sept. 16, 1968], No. 45227/69. Heading G3R. A speed control system for lifts comprises a device SO providing a voltage corresponding to a pattern speed irrespective of the lift-position during the acceleration period, the said voltage being reduced in a stepped manner with the aid of a position detector POS operable when the lift arrives at any one of a number of pre-set deceleration-points. A comparator CP, which is saturable in the positive and negative directions, is connected to an integrator I providing negative feedback to the comparator. The integrated output is also supplied to a speed control system for the lift. A changeover relay RY1 passes the command signal alternatively to the comparator CP during the acceleration period, and to an amplifier AP1 during the deceleration period. The amplifier AP1 is connected to a tachometer generator PG, and supplies a speedcorrecting signal to the integrator I whose output is applied through amplifier AP2 to the field winding of a Ward Leonard generator G associated with the lift-motor M. In a modification, a clamping circuit is connected to the output of the amplifier AP1 to provide a dead band effect, Fig. 2 (not shown). The amplifier AP1 may have a saturation characteristic to limit the rate of deceleration, Fig. 4 (not shown).
GB45227/69A 1968-09-16 1969-09-12 Speed control system for elevators Expired GB1236116A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43066106A JPS4815498B1 (en) 1968-09-16 1968-09-16

Publications (1)

Publication Number Publication Date
GB1236116A true GB1236116A (en) 1971-06-23

Family

ID=13306291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45227/69A Expired GB1236116A (en) 1968-09-16 1969-09-12 Speed control system for elevators

Country Status (3)

Country Link
US (1) US3627080A (en)
JP (1) JPS4815498B1 (en)
GB (1) GB1236116A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110386524A (en) * 2019-08-16 2019-10-29 钱良楚 Generally applicable arrival gong

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785463A (en) * 1972-05-09 1974-01-15 Reliance Electric Co Final stopping control
US3783974A (en) * 1972-05-09 1974-01-08 Reliance Electric Co Predictive drive control
US3774729A (en) * 1972-05-17 1973-11-27 Westinghouse Electric Corp Speed pattern generator for elevator systems
JPS5417219B2 (en) * 1973-01-24 1979-06-28
US3859581A (en) * 1974-01-11 1975-01-07 Gen Electric Analog to digital to analog rate control circuit for traction motor control systems
US3941214A (en) * 1974-04-29 1976-03-02 Armor Elevator Company, Inc. Control system for a transportation system
JPS51131044A (en) * 1975-05-09 1976-11-15 Hitachi Ltd Ac elevator controlling device
US4084662A (en) * 1975-09-01 1978-04-18 Nippon Otis Elevator Company Control apparatus for an elevator system
US4299308A (en) * 1979-12-27 1981-11-10 Otis Elevator Company Position controlled elevator door motion
US4342379A (en) * 1979-12-27 1982-08-03 Otis Elevator Company Time controlled elevator door motion
US4342378A (en) * 1979-12-27 1982-08-03 Otis Elevator Company Elevator door motion bench velocity
US4300662A (en) * 1979-12-27 1981-11-17 Otis Elevator Company Elevator door motor compensations
US4305480A (en) * 1979-12-27 1981-12-15 Otis Elevator Company Integral gain elevator door motion control
JPS59132774U (en) * 1983-02-21 1984-09-05 三井造船株式会社 Shaft coupling installation/removal tools
FI72016C (en) * 1983-08-17 1987-03-09 Kone Oy FOERFARANDE OCH ANORDNING FOER STABILISERING AV EN LIKSTROEMSMOTOR I EN HISS.
US4649328A (en) * 1985-06-26 1987-03-10 General Electric Co. Method for automatic speed loop tune-up in a machine drive
CN109018797B (en) * 2018-07-17 2020-05-15 广东盘古信息科技股份有限公司 Intelligent logistics storage system
CN114258383B (en) * 2019-08-27 2023-08-18 三菱电机株式会社 Conveying device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110386524A (en) * 2019-08-16 2019-10-29 钱良楚 Generally applicable arrival gong
CN110386524B (en) * 2019-08-16 2024-05-10 钱良楚 Universal arrival clock

Also Published As

Publication number Publication date
JPS4815498B1 (en) 1973-05-15
US3627080A (en) 1971-12-14

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