EP3319893A1 - Verfahren zum betreiben einer aufzugsanlage, steuerungssystem und aufzugsanlage - Google Patents
Verfahren zum betreiben einer aufzugsanlage, steuerungssystem und aufzugsanlageInfo
- Publication number
- EP3319893A1 EP3319893A1 EP16736174.0A EP16736174A EP3319893A1 EP 3319893 A1 EP3319893 A1 EP 3319893A1 EP 16736174 A EP16736174 A EP 16736174A EP 3319893 A1 EP3319893 A1 EP 3319893A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- car
- distance
- speed
- minimum distance
- elevator
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- 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
- B66B1/2408—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration where the allocation of a call to an elevator car is of importance, i.e. by means of a supervisory or group controller
- B66B1/2433—For elevator systems with a single shaft and multiple cars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0012—Devices monitoring the users of the elevator system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B2201/00—Aspects of control systems of elevators
- B66B2201/10—Details with respect to the type of call input
- B66B2201/103—Destination call input before entering the elevator car
Definitions
- the present invention relates to a method for operating an elevator installation with at least two cars in an elevator shaft, a control system for such an elevator installation and such an elevator installation.
- 7,819,228 B2 discloses, for example, a method for operating an elevator system with a plurality of cars in an elevator shaft in which a collision probability of two cars is continuously determined and, if necessary, the speed or the acceleration or deceleration is changed in one or both cars or an unplanned stop takes place.
- a method according to the invention serves to operate an elevator installation with at least two cars in an elevator shaft.
- a first car which is to travel or drive in the direction of a second car, is moved on the basis of a travel curve such that a distance between the first car and the second car can be regulated to an adjustable minimum distance.
- the driving parameters such as speed and acceleration can be adjusted accordingly. By regulating the distance between the two cabins to a minimum distance, it is ensured that no dangerous situation such as, for example, a collision of the cabs can occur in the event of an unexpected emergency stop of the second, preceding cab.
- the distance control allows the first, behind-traveling cabin to respond optimally to the travel of the second preceding car. This allows the fastest possible achievement of the destination floor by the first cabin.
- a regulation to a minimum distance can be targeted to this minimum distance.
- the minimum distance can thus be taken into account in the context of the scheme already at the beginning of the journey, while in contrast to a reaction, such as a strong deceleration, only when falling below a certain distance, for example. To an undesirable jerk, which is perceived by passengers can come.
- this method can also be applied to more than two cabins in one elevator shaft by applying it to two adjacent cabins. This can accordingly also lead to a dependency of the travel curve of a cabin of several preceding cars.
- a method for operating an elevator installation having at least two cars in an elevator shaft, wherein a first cabin which is to travel or drive in the direction of a second cabin is moved on the basis of a travel curve, wherein an adjustable minimum distance between the first car and the second car is maintained at all times, and wherein the first cabin is moved in such a way based on the travel curve that a distance between the first cabin and the second cabin is controlled in the process of the first cabin to the adjustable minimum distance, so that the first cabin can be purposefully approached at this minimum distance to the second cabin.
- the minimum distance is set depending on a speed of the first car and / or the second car. This allows for a greater braking distance at a faster speed.
- the distance between the first car and the second car is controlled to the minimum distance with continuous calculation of a virtual breakpoint for the first car, to which the first car can be stopped with a safe distance to the second car.
- the minimum distance between the two cabins can be kept very low.
- the virtual breakpoint can always be chosen so that the first car with a safety distance to the current position of the second car would come to a stop.
- a brake path of the second car is taken into account when determining the virtual breakpoint.
- the minimum distance can be further reduced since the travel path which the second car travels between a hypothetical brake start and end of the first car is taken into account.
- the braking distance of the second car is corresponding to a
- the first car when both are spaced from each other by at most a predetermined number of floors, the first car is accelerated at a lower acceleration than the second car.
- the number of floors can be given, for example, depending on the building in which the elevator system is located and depending on the possible acceleration and speed of the cabins. In particular, two to four floors may be specified as the number of floors.
- the first car is moved during a start using a maximum available or permissible acceleration in such a way that the minimum distance between the first car and the second car is reached as quickly as possible.
- the first car can ascend to the second car as fast as possible, until the minimum distance is reached.
- travel times can be minimized.
- a speed, an acceleration, a deceleration and / or a jolt of the first car is / are given by the driving curve.
- an optimum driving curve can be continuously calculated and the stated output variables can be fed directly to an elevator control or a part thereof, which is used to drive the drive.
- the speed, the acceleration, the deceleration and / or the jerk of the first car are respectively limited by maximum values and / or minimum values. For example, on the one hand, safety-related limits can be met and, on the other hand, energy can be saved. In addition, unpleasant driving situations for passengers can be avoided in particular by specifications for the jerk, ie the change in the time of the acceleration.
- the speed, the acceleration, the deceleration and / or the jerk of the first cabin deviate from the maximum or nominal values
- passengers in the first cabin are informed visually and / or acoustically about the respective deviation.
- appropriate display or acoustic means may be provided. In this way, possible uncertainties in the passengers due to, for example, a speed lower than a normal speed can be prevented.
- the distance between the first car and the second car is determined by means of positioning systems of the two cars. Since such position determination systems, such as, for example, simple markings in the elevator shaft with corresponding sensors on the cars, are usually present anyway in elevator systems, this allows a particularly simple implementation of the proposed method.
- An inventive method can also be used in an elevator system with several elevator shafts. There, the method can be used for each hoistway in which at least two cabins are present.
- An inventive control system for an elevator installation with at least two cabins in an elevator shaft is set up to carry out a method according to the invention.
- An elevator system according to the invention has at least two cabins in an elevator shaft and a control system according to the invention.
- FIG. 1 schematically shows an elevator shaft of an elevator installation according to the invention in a preferred embodiment with two cabins.
- FIG. 2 shows in a diagram travel curves of two cars in a lift shaft in a method not according to the invention.
- FIG. 3 shows in a diagram further travel curves of two cars in an elevator shaft in a method not according to the invention.
- FIG. 4 schematically shows a distance regulation between two cars in an elevator shaft in a method according to the invention in a preferred embodiment.
- FIG. 5 schematically shows a distance regulation between two cars in an elevator shaft in a method according to the invention in a further preferred embodiment.
- FIG. 1 diagrammatically shows in cross section a lift shaft of an elevator system 100 according to the invention in a preferred embodiment.
- two cars are shown in the elevator shaft 110, a first cabin 120 and a second cabin 121.
- first car 120 is at the level of the floor Sl and the second car 121 at the level of the floor S4.
- a sensor is provided on each of the cabins on the respective underside, a first sensor 140 on the first cabin 120 and a second sensor 141 on the second cabin 121.
- the position of each of the two cabins 120 can be determined by means of the sensors 140, 141 121 in the elevator shaft 110, for example by scanning or reading marks or absolutely coded bands, for example on an inner wall or a rail in the elevator shaft.
- a distance d between the first car 120 and the second car 121 can now be determined in the sense of position determination systems.
- the distance d is defined in the present figures as a distance of the two sensors or as a distance of the undersides of the two cabins. It is understood, however, that the distance d also otherwise, for example.
- As a distance between the bottom of the upper cabin and the top of the lower Cabin can be set. Taking into account the dimensions of the cabins, this can be easily converted.
- the positioning systems shown with the sensors 140, 141 for determining the distance of the two cabins are merely exemplary.
- other suitable positioning systems may be used.
- such positioning systems are used, which are already present in an elevator installation.
- a control system 130 for example in the form of a computing unit, is provided, which is set up to control the elevator installation 100 or to move the booths 120 and 121.
- the control system 130 is adapted to perform a method according to the invention, which will be explained in more detail below.
- FIG. 2 shows in a diagram travel curves 125 and 126 of two cars 120 and 121 in an elevator shaft for a method not according to the invention.
- the driving curves 125, 126 are shown as height h in the elevator shaft over the time t.
- a speed of the cabins can be, for example, easily recognize the slope of the driving curves.
- the driving curves follow, for example, setpoint values of a driving curve computer (setpoint generator), which is provided, for example, in the control system 130.
- the setpoints are in particular the speed (or a speed of a motor in an elevator drive), but also the acceleration and the jerk of the cabins.
- the first car 120 is initially at height t and the second car 121 at height h 2 . These heights may in particular be appropriate starting floors.
- the second, upper cabin 121 starts at time t t of height h 2 and is moved in accordance with the travel curve 126 at height h 4 , which in particular can correspond to a destination floor of the second cabin 121.
- the first, lower cabin 120 starts at time t 2 of height t and is moved according to the travel curve 125 at height h 3 , which can correspond in particular to a destination floor of the first cabin 120.
- the two driving curves 125 and 126 in the illustrated figure correspond to driving curves with nominal values with regard to speed, acceleration and jerk for the respective cars with the respective start and destination floors.
- the time offset between the start times ti and t 2 results from a time period in which an information that the second car 121 has started has reached the first car 121. In practice, this may be, for example, only a few ms, so that the two cabs start at substantially the same time. A greater time offset can arise, for example, when a car door can not be closed because, for example, a person is in the area of the car door.
- the distance between the two cars 120 and 121 which corresponds to the vertical distance of the two driving curves 125 and 126, in the example shown is relatively constant. In particular, it never falls short of a minimum distance that ensures that if the second upper cab 121 stops unexpectedly, the first lower cab 120 can be stopped without colliding with the second cab.
- FIG. 3 shows in a diagram further travel curves 125 and 126 of two cars 120 and 121, respectively, in an elevator shaft for a method not according to the invention.
- a destination floor for the first, lower car 120 is located further above the starting floor of the second, upper car, ie the difference between the height h 2 and the altitude h 3 is greater than in the example shown in FIG.
- the destination floor of the second car ie the height h 4
- the difference of the two destination floors or the two heights h 3 and h 4 is lower than in Figure 2.
- the first car 120 starts, delayed until time t 3 .
- the first car 120 is thus moved according to the travel curve 125, which has the same nominal values as the travel curve 125 ', but is delayed in time.
- the minimum distance between the two cabins is therefore maintained at any time during the journey.
- FIG. 4 schematically shows a distance control between two cabins 120 and
- the first car 120 and the second car 121 are shown with their positions at any time.
- the distance d of the two cabins is regulated to a minimum distance d min .
- This minimum distance d min is set so that, if the first car 120 would be decelerated from said time, it would still stand with a safety distance d s to the position of the second car 121 at that time.
- This hypothetical or virtual breakpoint is shown in the figure by the position of the car 120 '.
- This position of the car 120 ' i. the virtual breakpoint, can be determined at the time mentioned on the basis of the speed curve 127 of the first car 120.
- This speed profile 127 results, for example, on the basis of the current speed and an emergency stop occurring at the time mentioned or an emergency stop.
- the speed of the car following behind is adjusted so that the car could stop at this stopping point.
- the values for speed, deceleration and jerk are limited to nominal or maximum values. Similarly, a lower limit can be set via minimum values.
- the values for the delay (including jerk) can correspond to the nominal parameters.
- FIG. 5 schematically shows a distance control between two cars 120 and 121 in an elevator shaft in a method according to the invention in a further preferred embodiment.
- the first car 120 and the second car 121 are shown with their positions at any time.
- the distance d of the two cabins is regulated to a minimum distance d min .
- this minimum distance d min is determined such that, if the first car 120 were to be decelerated from the stated point in time, still with a safety distance d s to the position of the second car 121, this at the time the stoppage of the first car 120 would have come to a standstill (represented by the car 121 ').
- This hypothetical or virtual breakpoint is shown in the figure by the position of the car 120 '. This position of the car 120 ', ie the virtual stopping point can be determined at that time on the basis of the speed curve 127 of the first car 120 and the speed curve 128 of the second car 121.
- Cabins which are close to each other can thus start simultaneously or in quick succession by means of a method according to the invention.
- the subsequent car will thus approach (resulting) with a smaller resulting acceleration than the preceding car, so the distance will build up with increasing speed.
- Reduced acceleration and jerk also reduce the wear and energy consumption of the lift as well as the burden on passengers.
- Information may be, for example, a remaining travel time to the next stop, value of the driven speed in relation to the normal speed, speed adjustments during the journey or type of travel (for example, tracking drive).
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015212882.2A DE102015212882A1 (de) | 2015-07-09 | 2015-07-09 | Verfahren zum Betreiben einer Aufzugsanlage, Steuerungssystem und Aufzugsanlage |
PCT/EP2016/066161 WO2017005864A1 (de) | 2015-07-09 | 2016-07-07 | Verfahren zum betreiben einer aufzugsanlage, steuerungssystem und aufzugsanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3319893A1 true EP3319893A1 (de) | 2018-05-16 |
Family
ID=56368981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16736174.0A Withdrawn EP3319893A1 (de) | 2015-07-09 | 2016-07-07 | Verfahren zum betreiben einer aufzugsanlage, steuerungssystem und aufzugsanlage |
Country Status (6)
Country | Link |
---|---|
US (1) | US20190084798A1 (de) |
EP (1) | EP3319893A1 (de) |
KR (1) | KR20180021111A (de) |
CN (1) | CN107848746A (de) |
DE (1) | DE102015212882A1 (de) |
WO (1) | WO2017005864A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014220629A1 (de) * | 2014-10-10 | 2016-04-14 | Thyssenkrupp Ag | Verfahren zum Betreiben einer Aufzugsanlage |
EP3224176A1 (de) * | 2014-11-25 | 2017-10-04 | Otis Elevator Company | System und verfahren zur überwachung der kapazität einer aufzugsbremse |
US20230073673A1 (en) * | 2020-03-31 | 2023-03-09 | Mitsubishi Electric Corporation | Multi-car elevator control device |
DE102022124567A1 (de) * | 2022-09-23 | 2024-03-28 | Tk Elevator Innovation And Operations Gmbh | Verfahren zum Betreiben einer Aufzugsanlage |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04313571A (ja) * | 1991-04-12 | 1992-11-05 | Mitsubishi Electric Corp | エレベータ制御方法 |
JP2732730B2 (ja) * | 1991-08-27 | 1998-03-30 | 株式会社東芝 | 自走式エレベータの制御装置 |
JP4326618B2 (ja) | 1999-02-03 | 2009-09-09 | 三菱電機株式会社 | エレベーターの群管理装置 |
JP5191743B2 (ja) | 2005-02-17 | 2013-05-08 | オーチス エレベータ カンパニー | 2つのエレベータが走行する昇降路内での干渉の防止 |
DE502005000701D1 (de) * | 2005-03-05 | 2007-06-21 | Thyssenkrupp Aufzugswerke Gmbh | Aufzuganlage |
US20100133046A1 (en) * | 2007-03-12 | 2010-06-03 | Inventio Ag | Elevator system, suspension element for an elevator system, and device for manufacturing a suspension element |
KR100898916B1 (ko) * | 2007-04-02 | 2009-05-26 | 최성식 | 엘리베이터 시스템 및 그 제어방법 |
ES2499340T3 (es) * | 2007-08-07 | 2014-09-29 | Thyssenkrupp Elevator Ag | Sistema de elevador |
US8434599B2 (en) * | 2007-09-18 | 2013-05-07 | Otis Elevator Company | Multiple car hoistway including car separation control |
ES2384063T3 (es) * | 2007-11-30 | 2012-06-29 | Otis Elevator Company | Coordinación de múltiples cabinas de ascensor en un hueco de ascensor |
CN102256885B (zh) * | 2008-12-26 | 2016-11-02 | 因温特奥股份公司 | 电梯设备的电梯控制装置 |
EP2607282A1 (de) * | 2011-12-23 | 2013-06-26 | Inventio AG | Sicherheitseinrichtung für einen Aufzug mit mehreren Kabinen |
-
2015
- 2015-07-09 DE DE102015212882.2A patent/DE102015212882A1/de not_active Ceased
-
2016
- 2016-07-07 CN CN201680040392.1A patent/CN107848746A/zh active Pending
- 2016-07-07 EP EP16736174.0A patent/EP3319893A1/de not_active Withdrawn
- 2016-07-07 US US15/742,928 patent/US20190084798A1/en not_active Abandoned
- 2016-07-07 WO PCT/EP2016/066161 patent/WO2017005864A1/de active Application Filing
- 2016-07-07 KR KR1020187002113A patent/KR20180021111A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2017005864A1 (de) | 2017-01-12 |
US20190084798A1 (en) | 2019-03-21 |
KR20180021111A (ko) | 2018-02-28 |
CN107848746A (zh) | 2018-03-27 |
DE102015212882A1 (de) | 2017-01-12 |
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