WO2000050329A1 - Inverter controller for elevator hoist and door motors - Google Patents
Inverter controller for elevator hoist and door motors Download PDFInfo
- Publication number
- WO2000050329A1 WO2000050329A1 PCT/US2000/004119 US0004119W WO0050329A1 WO 2000050329 A1 WO2000050329 A1 WO 2000050329A1 US 0004119 W US0004119 W US 0004119W WO 0050329 A1 WO0050329 A1 WO 0050329A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- inverter
- controller
- door
- hoist
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
-
- 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
Definitions
- This invention involves an elevator in which the elevator hoist motor and the door motor utilize controlled alternating current power.
- Elevator cars are typically moved by a hoist motor and the car doors are opened and closed by a door motor.
- the proper voltage and frequency current is provided by a hoist motor inverter to the hoist motor based on instructions from a hoist motor controller, and the proper voltage and frequency current is provided to the door motor by a door motor inverter based on command input from a door motor controller.
- the hoist motor and the door motor are operated simultaneously to increase a car's operating efficiency. For example, immediately before the car reaches or leaves a floor, the door motor is driven along with the hoist motor. Also, releveling (aligning the floor of the car with the floor at the entrance) may be performed while doors are opened. Thus, while high performance, general-use elevators may require that the hoist motor and the door motor be driven simultaneously to increase operating efficiency, certain home elevator applications do not require high operating efficiency. For such elevators, the need to provide separate hoist motor inverters and door motor inverters has contributed to the cost of the product.
- this invention is equipped with a hoist motor that moves a car, a door motor that opens and closes the car door or doors, an inverter section that simultaneously controls the voltage and frequency of the current provided to the hoist motor and the door motor, and a control section that sends instructions to this inverter section to control the speed at which the car travels and the speed at which the door opens and closes. It is constituted so that the proper voltage and frequency current will be provided to the hoist motor from the inverter section until the car reaches a floor; and, after the car reaches a floor, the proper voltage and frequency will then be provided to the door motor from the same inverter section.
- FIG. 1 is a block diagram that shows one application example of an elevator associated with this invention.
- elevator car 1 is driven in a hoistway (not shown) and includes a horizontally sliding door 5 driven by door operator motor 6.
- the car 1 is positioned verti- cally by means of a rope 2 attached to the car 1 and suspended from the elevator drive sheave 3 a.
- the rope 2 terminates at its other end at a counter weight 4 which provides a balancing of the vertical forces on the carl .
- Drive sheave 3a is rotated by hoist motor 3 which turns an intermediate shaft 3b as shown.
- Both the hoist motor 3 and the door motor 6 are variable voltage alternating current motors which may be precisely controlled for speed and position by varying the voltage and frequency of the supplied motor current.
- three phase variable frequency alternating current is supplied to either the hoist motor 3 or the door motor 6 by a controlled inverter section 8 which receives fixed voltage alternating current from a power source 7, such as an electric utility supply line.
- the voltage and frequency of the output current 11 from the inverter section 8 is controlled in response to the inputs from a controller 9 as shown in the figure.
- controller 9 causes the elevator hoist motor 3 the cease operation and initiates a signal 22 to a relay control 10 actuating the power relay 12.
- Power relay 12 is operated, in response to the actuator 10, to switch the output 11 of the inverter section 8 from the hoist motor 3 to the door motor 6.
- control signals provided to the inverter 8 by the controller 9 will differ in response to the controllers selection of either the hoist motor or the door motor for receiving the inverter output 11.
- a single inverter 8 and controller 9 may be used to control both a hoist motor 3 and a door motor 6 in an elevator application.
- Switching relay 11 prevents the simultaneous connection of the hoist motor 3 and the drive motor 6 to the inverter 8.
- the system according to the present invention thus eliminates the need for a second inverter and controller as is known in the prior art, in exchange for the requirement that the single remaining inverter 8 drive only one of the hoist motor and the door motor at a given time.
- a controller 9 sensing the misleveling of the elevator with the desired floor, would direct inverter 8 to power door motor 6 so as to close doors 5, then command actuator 10 to actuate the relay 12 so as to connect the inverter 8 to the hoist motor 3 and disconnect inverter 8 from door motor 6.
- the controller 9 would then control the inverter 8 so as to drive hoist motor 3 to position the elevator car 1 at the correct position within the hoistway.
- Relay 12 shown here schematically as a mechanical relay having a mechanical actuator 10, may alternatively be an electronic switch or any other device or structure which can divert the output 11 of the inverter section 8 between either the hoist motor 3 or the door motor 6, in response to signal 22 from the controller 9.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/889,440 US6481533B1 (en) | 2000-02-18 | 2000-02-18 | Single inverter controller for elevator hoist and door motors |
DE60010668T DE60010668T2 (en) | 1999-02-26 | 2000-02-18 | Inverter control for elevator drive motor and for elevator door motor |
EP00919319A EP1154948B1 (en) | 1999-02-26 | 2000-02-18 | Inverter controller for elevator hoist and door motors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11051008A JP2000247553A (en) | 1999-02-26 | 1999-02-26 | Elevator |
JP11/51008 | 1999-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000050329A1 true WO2000050329A1 (en) | 2000-08-31 |
Family
ID=12874759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/004119 WO2000050329A1 (en) | 1999-02-26 | 2000-02-18 | Inverter controller for elevator hoist and door motors |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1154948B1 (en) |
JP (1) | JP2000247553A (en) |
CN (1) | CN1241812C (en) |
DE (1) | DE60010668T2 (en) |
ES (1) | ES2220453T3 (en) |
WO (1) | WO2000050329A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002070390A1 (en) * | 2001-03-05 | 2002-09-12 | Schroedl Manfred | Electric drive |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102241356A (en) * | 2011-06-28 | 2011-11-16 | 杭州优迈科技有限公司 | Energy saving method and device for elevator door motor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5352965A (en) * | 1992-10-29 | 1994-10-04 | Kabushiki Kaisha Toshiba | Container crane driving control system |
US5361565A (en) * | 1993-01-19 | 1994-11-08 | Bayer Robert F | Elevating system |
US5936375A (en) * | 1997-11-05 | 1999-08-10 | Paceco Corp. | Method for energy storage for load hoisting machinery |
US6002218A (en) * | 1992-11-20 | 1999-12-14 | Fujitsu General Limited | Control device for air conditioner |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04191263A (en) * | 1990-11-27 | 1992-07-09 | Mitsubishi Electric Corp | Elevator controller |
JP3324932B2 (en) * | 1996-06-05 | 2002-09-17 | 株式会社東芝 | Elevator control device |
-
1999
- 1999-02-26 JP JP11051008A patent/JP2000247553A/en active Pending
-
2000
- 2000-02-18 CN CN 00804280 patent/CN1241812C/en not_active Expired - Fee Related
- 2000-02-18 ES ES00919319T patent/ES2220453T3/en not_active Expired - Lifetime
- 2000-02-18 EP EP00919319A patent/EP1154948B1/en not_active Expired - Lifetime
- 2000-02-18 WO PCT/US2000/004119 patent/WO2000050329A1/en active IP Right Grant
- 2000-02-18 DE DE60010668T patent/DE60010668T2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5352965A (en) * | 1992-10-29 | 1994-10-04 | Kabushiki Kaisha Toshiba | Container crane driving control system |
US6002218A (en) * | 1992-11-20 | 1999-12-14 | Fujitsu General Limited | Control device for air conditioner |
US5361565A (en) * | 1993-01-19 | 1994-11-08 | Bayer Robert F | Elevating system |
US5936375A (en) * | 1997-11-05 | 1999-08-10 | Paceco Corp. | Method for energy storage for load hoisting machinery |
Non-Patent Citations (1)
Title |
---|
See also references of EP1154948A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002070390A1 (en) * | 2001-03-05 | 2002-09-12 | Schroedl Manfred | Electric drive |
Also Published As
Publication number | Publication date |
---|---|
EP1154948B1 (en) | 2004-05-12 |
DE60010668D1 (en) | 2004-06-17 |
JP2000247553A (en) | 2000-09-12 |
CN1241812C (en) | 2006-02-15 |
CN1341074A (en) | 2002-03-20 |
DE60010668T2 (en) | 2004-10-07 |
EP1154948A4 (en) | 2002-10-30 |
ES2220453T3 (en) | 2004-12-16 |
EP1154948A1 (en) | 2001-11-21 |
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