GB1236116A - Speed control system for elevators - Google Patents
Speed control system for elevatorsInfo
- 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
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)
- Warehouses Or Storage Devices (AREA)
- Control Of Electric Motors In General (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).
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)
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)
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 |
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 |
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 |
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 |
-
1968
- 1968-09-16 JP JP43066106A patent/JPS4815498B1/ja active Pending
-
1969
- 1969-09-12 GB GB45227/69A patent/GB1236116A/en not_active Expired
- 1969-09-15 US US857755A patent/US3627080A/en not_active Expired - Lifetime
Cited By (2)
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 |
---|---|
US3627080A (en) | 1971-12-14 |
JPS4815498B1 (en) | 1973-05-15 |
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