EP2499077A1 - Elevator system - Google Patents
Elevator systemInfo
- Publication number
- EP2499077A1 EP2499077A1 EP10768262A EP10768262A EP2499077A1 EP 2499077 A1 EP2499077 A1 EP 2499077A1 EP 10768262 A EP10768262 A EP 10768262A EP 10768262 A EP10768262 A EP 10768262A EP 2499077 A1 EP2499077 A1 EP 2499077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elevator car
- elevator
- reference position
- stop
- timing belt
- 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.)
- Granted
Links
- 238000012937 correction Methods 0.000 claims abstract description 37
- 239000000725 suspension Substances 0.000 claims abstract description 20
- 230000001360 synchronised effect Effects 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 36
- 230000008859 change Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 230000001419 dependent effect Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000011664 signaling Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 11
- 238000011156 evaluation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
Definitions
- the invention relates to an elevator installation with at least one elevator car, which can be driven by at least one suspension element by a drive machine unit.
- Elevator cabin the movement of the elevator car is determined. Thereby, due to the revolutions of the prime mover, the position of the elevator machine in the shaft can be determined, so that no position determining means are required in the shaft.
- the elevator installation known from EP 1 493 708 A2 has the disadvantage that a precise stopping on a floor can not be guaranteed over the service life of the elevator installation since certain length changes are unavoidable in the case of the toothed belts used as suspension means.
- the object of the invention is to provide an elevator system in which the position determination of the elevator car is realized in a simple manner.
- Stop is only slightly influenced by changes in length of the suspension element.
- a suspension means in addition to the function of transmitting the power of a prime mover unit to the elevator car to move the elevator car, also can have the function to carry the elevator car.
- movement of the elevator car is to be understood in particular as a lifting or lowering of the elevator car, the elevator car being characterized by one or more
- the elevator installation comprises a load measuring device for detecting the loading of the elevator car, and the compensation device causes the correction of the stored stop position values taking into account an additional correction factor which compensates for a change in length of the synchronous belt due to load changes in the elevator car ,
- the compensation device can determine a corresponding change in length of the synchronous belt by calculation and cause a corresponding correction of the stop position position values.
- Elevator car caused changes in length of the timing belt can be largely avoided.
- Elevator installation a temperature measuring device, and the compensation device additionally causes the measurement of the travel by taking into account a further correction factor, which is a change in length of the timing belt due to
- the reference position (24) is arranged such that the length of the timing belt between the traction sheave (12) and the elevator car (3) passes at least 50% when the reference position (24) passes through the elevator car (3). corresponds to the maximum length occurring during operation. This is a change in length of the timing belt over a large belt length detects what is crucial for sufficient accuracy in determining the correction factor to correct all stop position values.
- the reference position is arranged in the region of a main stop of the elevator installation. Such an arrangement ensures that the elevator car overruns the position sensor or the reference position sufficiently often so that the correction of the stop position values stored in the control is carried out sufficiently often.
- the main stop is any stop that is approached by the elevator car more often than average. Examples of such main stops are stops on the ground floor or stops intended for transfer between different elevators (sky lobbies).
- more than one reference position, each with one assigned position sensor, are arranged in the elevator installation. Such an embodiment is advantageous if there is no location in the travel area of the elevator car which is sufficiently far away from the drive machine unit and is approached by the elevator car a sufficient number of times.
- the elevator installation the
- Elevator installation 1 in addition to at least for driving and positioning the elevator car serving synchronous belt at least one further support means 6, said support means 6 cooperates with a non-driven, idler support means disc 13 and only serves to support the elevator car.
- the at least one synchronous belt can be at least partially relieved of the supporting function, which substantially increases the life of the synchronous belt, which is usually designed as a toothed belt.
- 1 shows an elevator installation with an elevator car in a schematic illustration according to an exemplary embodiment of the invention.
- 1 shows an elevator installation 1 with an elevator shaft 2, an elevator cage 3, a counterweight 4 and suspension elements 5, 6.
- the elevator shaft 2 is delimited by lateral walls 7, 8 and a floor 9.
- the elevator system 1 is shown schematically, wherein a plurality of floors 10, 1 1 are provided, on the persons, objects or other loads in the elevator car 3 in or out of this can get out during operation.
- the floors 10, 1 1 are exemplified in this embodiment, with a significantly larger number of floors 10, 1 1 may be provided.
- the floor 10 determines a stop 10 '.
- the floor 1 1 determines a
- Stop 1 1 ' Stop 1 1 '.
- the elevator car 3 and the counterweight 4 are connected to the support means 5, 6.
- the support means 5, 6 are guided via traction sheaves 12, 13 of a drive unit 14. As a result, the elevator car 3 and the counterweight 4 are suspended on the support means 5, 6.
- On the drive machine unit 14 is a displacement measuring device in the form of a
- Encoder 15 is arranged, the revolutions of the traction sheaves 12, 13 of the
- Capture drive unit 14 The resolution of the pulse generator 15 is adapted to the configuration of the drive machine unit 14, in particular of the traction sheaves 12, 13.
- Both support means 5, 6 are designed as a synchronous belt, which cooperate without slip with the traction sheaves.
- the synchronous belts are in the form of toothed belts, and the traction sheaves are designed as toothed belt pulleys.
- the existing in the present embodiment in the form of a pulse encoder 15 path measuring device is connected via a signal line 16 to a controller 17 of the elevator system 1.
- the controller 17 is in turn connected via a signal line 18 to the prime mover unit 14 to drive the prime mover unit 14. Thereby, the controller 17, the movement of the elevator car 3 by means of Drive unit 14 control.
- the path measuring device can also be present in a different form.
- the path of the timing belt in the area of the traction sheave can be detected directly on the timing belt by means of a synchronous measuring wheel.
- Other forms of measuring devices may be used to detect the revolutions of the prime mover unit 14 and the traction sheave 12, 13, for example mechanical counters.
- a position sensor 20 is mounted, which is connected via a signal line 21 to the controller 17.
- the function of the position sensor 20 is to signal the controller when the elevator car 3 passes a reference position 24.
- the position sensor 20 is arranged in the region of the floor 10 and thus in the region of the stop 10 '. If, for example, the elevator car 3 travels from above to the stop 10 ', then in the reference position 24 of the elevator car 3 shown in FIG. 1, the position sensor 20 detects a reference element 22 attached to the elevator car 3.
- the reference element 22 in FIG Area of a bottom 25 of the elevator car 3 is arranged.
- a reference element 22 may be present in the form of an active element, for example in the form of an infrared light beam transmitter.
- a passive element for example as a reflector, which interacts with a position sensor 20 in the form of a reflection light scanner, or as a permanent magnet, which actuates a position sensor 20 in the form of a magnetic switch.
- the position sensor 20 or the reference position 24 can be anywhere along the
- Elevator shaft 2 may be arranged.
- the reference position of the elevator car 3 detected by the position sensor 20 is arranged such that when the elevator car passes its reference position, the length of the timing belt between the traction sheave 12 and the elevator car 3 is at least 30%, better at least 50% of the maximum length that can occur between the traction sheave and the elevator car during operation.
- the controller 17 has a memory device 27 and a compensation device 26. Before the regular startup of the elevator system 1, or for example after a
- Reference position 24 associated position value which conveniently corresponds to the distance between the traction sheave 12 and the reference position is entered into the memory device 27 and stored. Subsequently, the elevator car 3, again with manually activated control commands, driven from the reference position to all stops 10 ', 1 1'. The positions of the individual stops 10 ', 1 1', d. H. their stops position values are detected in each case with the help of existing in the form of the pulse encoder 15 path measuring device and also stored in the memory device 27 temporarily. The stop position values result from this
- a stop sensor 28 is temporarily attached to each of the stops 10 ', 11'. These stop sensors are either connected by means of temporarily laid cables to the controller, or the signals of the stop sensors 28 are transmitted by wireless radio link to the controller.
- Attaching the stop sensors 28 is a hand-controlled or by the
- Path measuring device forming pulse generator 15 a current elevator car position detected by the controller 17.
- a reference position value assigned to this reference position 24 is stored on the basis of a signal from the position sensor 20, and the stops position values corresponding to the positions of the stops are temporarily registered when passing the stops 10 ', 11' on the basis of signals from the stop position sensors 28 and saved.
- the stop sensors 28 are dismantled again.
- the elevator car 3 repeatedly passes the reference position 24.
- the position sensor 20 of the controller 17 sends the reference signal via the signal line 21 or via radio.
- the pulse generator 15 continuously detects the current elevator car position of the elevator car, which is transmitted via the signal line 16 to the controller 17.
- the reference signal causes the instantaneous elevator car position detected by the pulse generator 15 in the controller 17 to be associated with that of the reference position Position value is compared.
- the compensation device 26 effects a correction of the memory device 27 stored in the memory device 27
- Stop position values of the stops 10 ', 11' including a correction factor depending on the detected difference.
- the corrected stop position values then cause the elevator car to be stopped again sufficiently accurately at the stops 10 ', 11' even if the carrier length is changed.
- changes in length of the suspension elements 5, 6 occurring during the elevator operation which occur as a result of operating loads, due to temperature fluctuations or due to aging processes, can be corrected.
- exactly one reference position 24 is provided.
- exactly one position sensor 20 is assigned to the reference position 24.
- the controller 17 Up to a certain head of the elevator system, the controller 17 by cooperation with the
- Compensation device 26 ensure a sufficiently accurate start-up of all stops 10 ', 1 1' without fixed stop sensors are required. By using two or more arranged distributed over the head
- the reference position 24 is advantageously to be arranged so that the existing between the traction sheave 12 and the elevator car 3 length of the timing belt when passing the reference position 24 by the elevator car 3 corresponds to a relatively large proportion of the maximum length occurring during operation.
- a "relatively large proportion" is to be understood as meaning that the length of the timing belt between the traction sheave 12 and the elevator car 3 when passing the reference position 24 by the elevator car 3 is at least 30%, advantageously at least 50% of that occurring during operation in said area Maximum length corresponds.
- the reference position 24 is arranged in the area of a ground floor or a basement.
- the reference position 24 is in the range of
- Main stop 10 is in particular those
- the compensator 26 may update the stop positions for the stops 10 ', 11' stored in the memory device 27.
- a correction value for a specific stop is calculated by multiplying the detected difference between the reference position value stored in the memory device 27 and the position value of the elevator car detected at the reference position 24 by a correction factor.
- This correction factor corresponds approximately to the ratio of the distance between the traction sheave and the stop to the distance between the traction sheave and the reference position.
- Load-measuring device 30 which in the present embodiment, a
- Base plate 31 of the elevator car 3 and load sensors 32, 33 includes.
- the load measuring device 30 measures the instantaneous loading of the elevator car 3.
- the dead weight of the elevator car 3 is not transferred to the load sensors 32, 33 except for the base plate 31 in this exemplary embodiment.
- the entire elevator car 3 via a
- the load measuring device 30 is connected to the controller 17 via a signal line 34
- the detected by the load measuring device 30 instantaneous loading of the elevator car 3 is of the compensation measuring device 26 as a further variable taken into account to correct the stop positions stored in the memory device 27. Due to the loading of the elevator car 3 and the elasticity of the support means there are changes in length of the support means 5, 6. The size of these load-dependent changes in length is proportional to the currently between the
- the effective correction factor to be attributed can be conveniently determined by determining the changes in length of the suspension elements occurring there as a function of the cabin load by load tests in the region of the reference position 24. A corresponding load-proportional factor can then be stored in the controller. The calculation of the correction values of the stop position values as a function of the current load situation and the current stop is carried out in the controller 17.
- the load of the elevator car 3 detected by the load measuring device 30 at any time is also corrected by means of the position sensor 20 Determined changes in length of the support means 12, 13 used. The difference, when passing the reference position 24, between that of the
- Position sensor 20 determined change in length of the support means and the correction factor derived therefrom for correcting the stop position values always refer to the unloaded elevator car.
- the effective correction of the stop position values is then obtained by superimposing the correction factor resulting from the cabin load on the correction factor determined with the aid of the position sensor.
- the function of the compensation device 26 for correcting the stop position values is simplified and universally applicable.
- the proposed system of load compensation can also be realized an elevator system 1 with level control for the elevator car 3.
- the controller can calculate an occurring change in length of the suspension element on the basis of the already registered data (change in length of the suspension element as a function of load, currently present suspension element length between traction sheave and elevator car, measured load change) and by a corresponding compensation movement of the Drive unit 14 and the traction sheave 12, 13 correct or compensate.
- the latter also comprises a temperature measuring device 40.
- the controller 17 can compensate the influence of the ambient temperature on the change in length of the suspension element.
- a temperature compensation factor to be entered into the control is superimposed on the correction factor determined with the aid of the position sensor in the determination of the correction of the stop position values, analogously to the above-described correction factor for compensating the cabin load. This ensures that the correction of the stored Garstellen- position values taking into account a correction factor takes place, which compensates for a change in length of the timing belt 6 due to temperature changes.
- Fig. 2 shows a possible embodiment of the invention, in which the support means 5.2 and 6.2 fulfill different functions.
- the support means 5.2 is used exclusively to carry the elevator car 3. It is therefore from the elevator car via a non-driven, d. H. empty running idler
- the support means 6.2 is a timing belt, preferably a toothed belt, and is driven in synchronism with the revolutions of the engine unit 14 on the slip-free with the timing belt cooperating traction sheave 36, wherein the timing belt has conveniently carry a lower load.
- the advantage of such an embodiment is that the most appropriate belt types for the two different functions can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Elevator Control (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20100768262 EP2499077B1 (en) | 2009-11-12 | 2010-10-25 | Lift assembly |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20090175774 EP2322463A1 (en) | 2009-11-12 | 2009-11-12 | Lift assembly |
PCT/EP2010/066078 WO2011057890A1 (en) | 2009-11-12 | 2010-10-25 | Elevator system |
EP20100768262 EP2499077B1 (en) | 2009-11-12 | 2010-10-25 | Lift assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2499077A1 true EP2499077A1 (en) | 2012-09-19 |
EP2499077B1 EP2499077B1 (en) | 2014-04-02 |
Family
ID=42026214
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090175774 Withdrawn EP2322463A1 (en) | 2009-11-12 | 2009-11-12 | Lift assembly |
EP20100768262 Not-in-force EP2499077B1 (en) | 2009-11-12 | 2010-10-25 | Lift assembly |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090175774 Withdrawn EP2322463A1 (en) | 2009-11-12 | 2009-11-12 | Lift assembly |
Country Status (7)
Country | Link |
---|---|
US (1) | US9266699B2 (en) |
EP (2) | EP2322463A1 (en) |
CN (1) | CN102695663B (en) |
BR (1) | BR112012011089A2 (en) |
CA (1) | CA2780808C (en) |
ES (1) | ES2477577T3 (en) |
WO (1) | WO2011057890A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112010005384T5 (en) * | 2010-03-12 | 2012-12-27 | Mitsubishi Electric Corp. | Elevator safety control |
EP3473573A1 (en) * | 2017-02-10 | 2019-04-24 | KONE Corporation | A method, a safety control unit and an elevator system for defining absolute position information of an elevator car |
CN109867176B (en) * | 2017-12-05 | 2023-02-21 | 奥的斯电梯公司 | Automatic acquisition of floor information |
CN112041254B (en) * | 2018-04-24 | 2023-04-18 | 因温特奥股份公司 | Position determination system and method for determining the car position of an elevator car |
WO2021070547A1 (en) * | 2019-10-11 | 2021-04-15 | 株式会社シェルタージャパン | Liftable shelter door |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3158228A (en) * | 1961-07-18 | 1964-11-24 | Anglo Amer Corp South Africa | Rope stretch compensator for suspended conveyances in mine hoisting equipment |
CA2002409C (en) * | 1989-11-07 | 1995-03-14 | Klaus Katzy | System for monitoring the operation of a cage moving in a mine shaft |
EP0751088B1 (en) * | 1995-06-30 | 2001-02-28 | Inventio Ag | Device for generating shaft information |
US5921351A (en) * | 1997-04-29 | 1999-07-13 | Otis Elevator Company | Modular drive mechanism for a passenger conveyor |
MXPA02010420A (en) * | 2000-04-27 | 2003-04-25 | Inventio Ag | Device for producing elevator shaft information. |
US6776263B2 (en) * | 2000-05-19 | 2004-08-17 | Esw-Extel Systems Wedel Gesellschaft Fuer Austruestung Mbh | Elevator system for the vertical transport of loads in an aircraft |
US20050039987A1 (en) * | 2002-09-30 | 2005-02-24 | Ray Redden | Elevator landing and control apparatus and method |
US7540357B2 (en) * | 2003-05-15 | 2009-06-02 | Otis Elevator Company | Position reference system for elevators |
EP2348629A3 (en) * | 2003-05-15 | 2011-09-07 | Otis Elevator Company | Absolute position reference system |
ITBO20030413A1 (en) | 2003-07-03 | 2005-01-04 | Sassi Alberto Spa | HANDLING UNIT FOR LIFTS AND LOADERS. |
US7353916B2 (en) * | 2004-06-02 | 2008-04-08 | Inventio Ag | Elevator supervision |
EP1866229B1 (en) * | 2005-03-22 | 2013-11-13 | Inventio AG | Method for detecting the state of a lift cage and lift system wherein the method is used |
KR100969047B1 (en) | 2005-03-30 | 2010-07-09 | 미쓰비시덴키 가부시키가이샤 | Elevator apparatus |
MX2007012254A (en) * | 2006-10-12 | 2009-02-17 | Inventio Ag | System and method for detecting the position of a lift cage . |
EP2125594A2 (en) * | 2007-03-12 | 2009-12-02 | Inventio Ag | Elevator system, carrying means for an elevator system, and method for the production of a carrying means |
FI125130B (en) * | 2012-01-27 | 2015-06-15 | Kone Corp | Hardware for securing lift hoisting machinery and attachment arrangement |
-
2009
- 2009-11-12 EP EP20090175774 patent/EP2322463A1/en not_active Withdrawn
-
2010
- 2010-10-25 BR BR112012011089A patent/BR112012011089A2/en not_active Application Discontinuation
- 2010-10-25 CN CN201080059740.2A patent/CN102695663B/en not_active Expired - Fee Related
- 2010-10-25 EP EP20100768262 patent/EP2499077B1/en not_active Not-in-force
- 2010-10-25 CA CA2780808A patent/CA2780808C/en not_active Expired - Fee Related
- 2010-10-25 US US13/509,478 patent/US9266699B2/en not_active Expired - Fee Related
- 2010-10-25 ES ES10768262.7T patent/ES2477577T3/en active Active
- 2010-10-25 WO PCT/EP2010/066078 patent/WO2011057890A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011057890A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102695663A (en) | 2012-09-26 |
EP2499077B1 (en) | 2014-04-02 |
CA2780808A1 (en) | 2011-05-19 |
CA2780808C (en) | 2017-09-05 |
EP2322463A1 (en) | 2011-05-18 |
BR112012011089A2 (en) | 2016-07-05 |
US20120279809A1 (en) | 2012-11-08 |
WO2011057890A1 (en) | 2011-05-19 |
US9266699B2 (en) | 2016-02-23 |
ES2477577T3 (en) | 2014-07-17 |
CN102695663B (en) | 2014-08-27 |
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