SG92598A1 - Speed control system for elevators - Google Patents

Speed control system for elevators

Info

Publication number
SG92598A1
SG92598A1 SG9603922A SG1996003922A SG92598A1 SG 92598 A1 SG92598 A1 SG 92598A1 SG 9603922 A SG9603922 A SG 9603922A SG 1996003922 A SG1996003922 A SG 1996003922A SG 92598 A1 SG92598 A1 SG 92598A1
Authority
SG
Singapore
Prior art keywords
elevators
control system
speed control
speed
control
Prior art date
Application number
SG9603922A
Inventor
Kazuhiko Doi
Yasutami Kito
Original Assignee
Otis Elevator Co
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 Otis Elevator Co filed Critical Otis Elevator Co
Publication of SG92598A1 publication Critical patent/SG92598A1/en

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
    • B66B1/285—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
SG9603922A 1988-04-18 1989-04-18 Speed control system for elevators SG92598A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP39489888 1988-04-18

Publications (1)

Publication Number Publication Date
SG92598A1 true SG92598A1 (en) 2002-11-19

Family

ID=28034729

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9603922A SG92598A1 (en) 1988-04-18 1989-04-18 Speed control system for elevators

Country Status (1)

Country Link
SG (1) SG92598A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989991A (en) * 1974-10-03 1976-11-02 Westinghouse Electric Corporation Method and circuit for the derivation of an analog slip frequency signal of an induction motor in a tachometerless motor drive
US4671389A (en) * 1985-05-09 1987-06-09 Mitsubishi Denki Kabushiki Kaisha Speed control apparatus for an elevator
US4713595A (en) * 1985-07-19 1987-12-15 Mitsubishi Denki Kabushiki Kaisha Control apparatus for elevator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989991A (en) * 1974-10-03 1976-11-02 Westinghouse Electric Corporation Method and circuit for the derivation of an analog slip frequency signal of an induction motor in a tachometerless motor drive
US4671389A (en) * 1985-05-09 1987-06-09 Mitsubishi Denki Kabushiki Kaisha Speed control apparatus for an elevator
US4713595A (en) * 1985-07-19 1987-12-15 Mitsubishi Denki Kabushiki Kaisha Control apparatus for elevator

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