EP3261971A1

EP3261971A1 - Method for operating a lift system having a number of shafts and a number of cars

Info

Publication number: EP3261971A1
Application number: EP16705551.6A
Authority: EP
Inventors: Stefan Gerstenmeyer; Markus Jetter; Patrick Michael Bass
Original assignee: ThyssenKrupp AG; ThyssenKrupp Elevator AG
Current assignee: TK Elevator Innovation and Operations GmbH
Priority date: 2015-02-23
Filing date: 2016-02-22
Publication date: 2018-01-03
Also published as: DE102015102563A1; US20180237257A1; KR102081494B1; KR20170118876A; US10526166B2; WO2016135090A1; CN107250024B; CN107250024A

Abstract

The invention relates to a method for operating a lift system (100) having at least two cars (110) and at least two vertically extending lift shafts (101, 102), wherein the at least two cars (110) can be moved between the at least two lift shafts (101, 102), wherein, in a first operating mode, transport operations are carried out by the at least two cars (110) in the at least two lift shafts (101, 102), and in a second operating mode, a possible location of at least one (130) of the at least two cars (110) is restricted to at least one region (120) of at least one (102) of the at least two lift shafts (101, 102), and wherein the at least one (130) of the at least two cars (110) is not available for transport operations in other regions (121) of the at least two lift shafts (101, 102).

Description

Method for operating an elevator system with several shafts and several cabins

description

The present invention relates to a method for operating an elevator system and to a corresponding elevator system having at least two cars and at least two elevator shafts extending vertically, wherein the at least two cars change between the at least two elevator shafts.

State of the art

In elevator systems with several elevator shafts, cabins can often change between these elevator shafts and be moved in several elevator shafts. Thus, a high transport capacity (handling capacity, HC) can be achieved and a plurality of transport operations can be performed by the elevator system in particular simultaneously. Such elevator systems are referred to, for example, as shaft-changing multi-car systems.

However, such elevator systems have the disadvantage that empty cars, which are currently not used for a transport process, can hinder other cabins in elevator shafts. If necessary, these empty cabins must first be moved so that other cabins can carry out a corresponding transport operation. Moving empty cabins and not using them for transportation is, however, associated with unnecessary energy costs. EP 1 367 018 B1 describes a possibility for depositing empty cabins in a lift installation in a depository shaft. In the case of a request call, cabins deposited in the depository shaft can be provided again. This depository shaft is arranged between two elevator shafts with access openings. The depository shaft has no access openings.

Such a depository shaft is associated with a large amount of space. Furthermore, such depot shafts usually can not be retrofitted in buildings.

EP 1 619 157 A1 discloses a method for operating an elevator installation, similar to the elevator installation according to EP 1 367 018 Bl. Here, a special case is described during the operation, in which a booth unobstructedly blocks the elevator shaft due to a defect. The intact cabins will now be diverted via other elevator shafts.

US Pat. No. 3,658,155 shows an elevator system in which the shaft doors are set back from the travel path by at least one cabin width, so that cabins can pass another car in front of a door. Transport operations of other cabins therefore need not be interrupted when a car stops. A storage of cabins is not possible because in this case the shaft door would be blocked.

Also, such elevator systems have the disadvantage that due to the circulating operation for certain situations in which transport operations are often to be carried out between only a few storeys, also many empty runs become necessary.

It is therefore desirable to further improve the operation of elevator systems having a plurality of elevator shafts and a plurality of cars that can change between the elevator shafts. Disclosure of the invention

According to the invention, a method for operating an elevator system and a corresponding elevator system with the features of the independent patent claims are proposed. Advantageous embodiments are the subject of the dependent claims and the following description.

The elevator system comprises at least two cabins and at least two vertically extending elevator shafts. The at least two cabins can be moved between the at least two elevator shafts. Accordingly, the at least two cabins are not permanently assigned to a hoistway, but are expediently moved as required between the at least two hoistway shafts. For this purpose, appropriate connection paths are provided between the individual elevator shafts, for example in the form of horizontal elevator shafts. Such connection paths can be provided, for example, only at certain locations or in certain floors of a building having the elevator system. The connection paths can also be provided in each floor. Only certain elevator shafts can be connected to each other, so that corresponding cabins can only change between these connected elevator shafts. But it can also be connected to each elevator shafts, so that all cabins can switch between all elevator shafts. The elevator system can be operated in two operating modes. In a first operating mode, transport operations are performed by the at least two cars in the at least two elevator shafts. This first mode of operation is a regular operating mode of the elevator system. In a second mode of operation, a possible location of at least one of the at least two cabins is at least a range of at least one of the at least two elevator shafts restricted. In particular, this restriction is deliberate, so it is initiated by a control command and is not merely an inevitable, non-targeted consequence of a defect. This at least one of the at least two cars is not available for transport operations in the other areas of the at least two elevator shafts.

In particular, the at least one cabin is stored there and possibly maintained. During the second operating mode, the at least one of the at least two cars does not leave this at least one second area and only stays within this area.

In particular, during the first operating mode, cross-divisional transport operations are performed between the first areas and the at least one second area. Furthermore, in particular in the first areas as well as in the second areas, the elevator shafts are provided with shaft doors in order to enable passengers to get to the cabins in the first area

Enable operating mode. In particular, in the second operating mode, such landing doors, which basically allow access to the at least one second area, are not specifically available for boarding passengers to the cabins. This expresses that the second area is essentially a conventional elevator shaft and transport tasks for

Passengers supported. Shaft doors in this second area allow passengers to enter or leave the cabins.

In one embodiment, however, in the second mode of operation, this second area can be "mutated" into a depot shaft which is only available for storage purposes, in which case the existing elevator shaft is closed

Storage purposes used to deposit, at low capacity, unused cabins. Since fewer cabins are in operation in this case, the number of active elevator shafts (first areas) can also be reduced. Compared with the prior art, it is thus possible to deposit cabins without having to provide additional storage space. The at least one cabin, which is not available for transport operations in the other first areas, is in particular deactivated and not used for the normal, regular operation of the elevator system. In this case, this second area represents a storage area in which cabs of the elevator system are stored.

In particular, a number of cabins not available for transport operations in the other first areas can be changed in the second operating mode. During the second operating mode, different cabins may be located in the at least one second area as needed. Individual of these cabins, which are located in the at least one second area, can be removed again from the second area if necessary and used again for transport operations in the other, first areas.

If not all the cabins of the elevator system are required for carrying out the transport processes, for example with a comparatively low traffic volume and with comparatively little transport operations to be carried out, in particular individual cars are stored in the at least one second area.

The invention makes it possible to provide a sufficiently large number of cabins in the elevator system in order to be able to meet requirements and efficiently carry out all transport operations with comparatively high or highest traffic volume.

Furthermore, it is possible by the invention to take individual cabs out of service when needed. If not all cabins of the elevator system are needed, they can be flexibly stored in the at least one second area and need not be unnecessarily traversed. Possibly Unnecessary cabs in conventional elevator systems must be emptied in order not to obstruct or block other required cabins. By the invention of this circumstance can be prevented. Thus, energy costs for operating the elevator system can be reduced.

With the invention, it is not necessary to provide additional special bearings in the building having the elevator system in order to store cabins which are connected with additional space. Instead, the possible location of certain cabin is limited to appropriate second areas and the corresponding cabins can be stored in this second area. Individual areas of the elevator system, which are provided for the regular operation of the elevator system, can thus be used, if necessary, in particular for the storage of cabins. Similarly, the second areas in which cabins are stored may also be reused for regular operation if needed. Elevator systems in buildings can be retrofitted in a simple way essentially by software updates. No structural measures are necessary on the building and no additional storage facilities or shafts need to be installed in the building.

Advantageously, no transport operations are performed in the at least one second area and the at least one of the at least two cabins is not available for transport operations. Thus, the at least one second area in the second operating mode is used in particular exclusively for the storage or parking of cabins.

Alternatively, transport operations in the at least one second area are advantageously carried out in the second operating mode by the at least one of the at least two cars. These transport operations of the at least one of the at least two cars are performed exclusively in the at least one second area and not in the other first Areas of the elevator shafts. The at least one of the at least two cars does not leave the at least one second area in the course of these transport operations and only stays within the second area. Thus, if necessary, local transport operations in the at least one second area can be carried out in the second operating mode. Cabins whose possible locations are each restricted to the at least one area and, in particular, are not required for the regular operation of the elevator system can still be used for transport operations within the at least one second area if required. They are preferably moved bidirectionally.

Preferably, the at least one of the at least two cars is maintained in the at least one second area. In particular, repairs to the respective cabins in the at least one second area can also be carried out. Thus, cabins to which maintenance, service and / or repair work is to be performed need not be explicitly taken out of service for them. The maintenance, service and / or repair work can be carried out flexibly if the corresponding cabin is not provided anyway for the regular operation of the elevator system and in which at least one second area is stored or parked.

Advantageously, a changeover is made between the first and second operating modes as a function of operating parameters of the elevator system. Thus, during the normal operation of the elevator system, it is possible to flexibly switch between the operating modes without the elevator system having to be taken out of operation for this purpose.

In the first operating mode, in particular all the cars of the elevator system are available for transport operations in all elevator shafts and are also used for transport operations. Thus, in the first operating mode, in particular a maximum handling capacity (HC), ie a maximum transport capacity. In particular, the operating parameters provide information as to whether the maximum transport capacity is needed. If it is detected on the basis of the operating parameters that the maximum transport capacity is not required, in particular the second operating mode is changed. In particular, only as many cabins are available for transport operations as needed. The remaining cabins are stored in particular in the at least one second area.

Preferably, a number of cabins not available for transport operations in the remaining first areas are changed in the second operating mode in dependence on operating parameters of the elevator system. On the basis of the operating parameters can be assessed in particular how many cabins are needed to perform all transport operations in the remaining first areas. If not all available cabins are needed, it is expedient for individual cabins to be moved into the at least one second area and stored there in particular. If the available cabins are not sufficient to carry out all transport operations, individual cabins staying in the at least one second area are removed again and used for transport operations in the other first areas. Thus, it can be ensured that at any time the required number of cabins for transport operations in the other first areas is available. The required transport capacity is provided at all times and yet there are not too many cabins available, so that energy costs can be kept as low as possible.

Preferably, a number of areas and / or a size of the at least one second area are changed in the second operating mode in dependence on operating parameters of the elevator system. In particular, in the second operating mode is not always used the same second areas, but the second areas can be chosen at any time appropriate. The size of individual second areas can be flexibly increased or decreased, depending on how many cabins are to be in it. Furthermore, in the second operating mode, if required, further second areas of the elevator shafts can be used out of service and in particular for the storage of cabins. Different second areas do not necessarily adjoin one another but may be appropriately distributed. On the other hand, second areas can also be "resolved" at any time if required, and the cabins residing there can be used again at any time for transport operations in the other first areas.

The above-mentioned operating parameters, in each of which the operation modes are changed, the number of cabins not available for transport operations is changed, and the number and size of the second areas are changed, may be the same operating parameters or different operating parameters.

Advantageously, a required transport capacity, a waiting time of passengers, a current utilization of the elevator system, a utilization profile, times of day and / or measured values of load and / or passenger determination sensors are used as operating parameters of the elevator system. A utilization of the elevator system indicates, in particular, how many transport processes are currently to be performed or carried out by the elevator system. The load can for example also describe a number of passengers to be transported and / or loads to be transported. The utilization can be determined, for example, by means of a destination call system. The required transport capacity can be determined, for example, from the current utilization and / or by means of the destination call system. The waiting time of passengers indicates, in particular, how long passengers, in particular, have to wait, on average, at their starting floor, until a car is provided there for carrying out a respective transport operation. In order to reduce this waiting time, in particular more cabins are used in the remaining (ie used for transport operations) first areas of the elevator shafts for transport operations.

The number of passengers to be transported and / or loads to be transported can be determined, in particular, as the measured value of suitable sensors, for example load and / or passenger determination sensors. Such load and / or passenger determination sensors can be configured in particular as load or force measuring sensors, cameras or infrared sensors. Also, a sensor in a building's turnstile which detects that people are passing the turnstile and entering the building may be used as such load and / or passenger determination sensors.

For example, at certain times of the day, there may be peak times when it may be cheaper and more efficient to operate the elevator system in the first mode of operation. Thus, the elevator system can change in time to the corresponding operating mode. Such peak times are in particular an up-peak, a down-peak or a lunch traffic. During an up-peak, the cabs of the elevator system perform a variety of transport operations to higher floors. During a down-peak, the cabs of the elevator system perform a variety of transport operations to lower floors. During a lunch traffic, the cabins of the elevator system carry out a multitude of transport processes in both directions, that is to say both to lower floors and to higher floors. At such peak times comparatively many transport operations are to be carried out, for which a maximum transport capacity of the elevator system is needed. If it is recognized on the basis of the operating parameters, for example, that a specific time of day occurs in which such a peak time occurs, the elevator system is operated in particular in the first operating mode. For an up-peak, a down-peak or a lunch traffic, the elevator system is operated in particular in the first operating mode. Outside these rush hours, the elevator system is operated in particular in the second operating mode.

A utilization profile specifies, in particular, a course of transport processes of the elevator system to be carried out. For example, the utilization profile can be determined depending on the time of day, the day of the week and / or the month. Thus, it can be learned at what times (in terms of the time of day, on the day of the week as well as the month) comes at peak times. For example, a workload profile can be a self-learning workload profile. For example, a control unit of the elevator system can learn such a utilization profile over a predetermined period of time. Utilization profiles can in particular be determined empirically, statistically, analytically and / or numerically. Preferably, the at least one second region of the at least one of the at least two elevator shafts extends over a plurality of, in particular, interconnected floors of a building having the elevator system. Thus, each part of the elevator shafts can be used as a second area for storing cabins.

Advantageously, the at least one second region of the at least one of the at least two elevator shafts extends over the complete vertical length of the at least one of the at least two elevator shafts. Thus, complete elevator shafts of the elevator system can be taken out of service and used in particular for the storage of cabins. Preferably, the at least two elevator cars in the at least two elevator shafts are operated as one or more shaft-changing multi-car systems. A number of in particular adjacent elevator shafts as well as a number of cabins are each provided for a special shaft changing multi-car system. In particular, the number of cars is moved only within this number of elevator shafts and the number of corresponding cabins only changes between these number of elevator shafts. In particular, in a shaft-changing multi-cabin systems, cabins in special elevator shafts are only moved upwards and in other elevator shafts only downwards.

In an advantageous embodiment of the invention, in the first operating mode, a first number of cars in a first number of elevator shafts are operated as a first bay-changing multi-car system and a second number of cabs are operated in a second number of elevator shafts as a second bay-changing multi-car system. The elevator shafts of the first and second number of elevator shafts are each adjacent in particular. In particular, all lift shafts of the first and second numbers are connected to each other. In particular, a change of all cabins between all elevator shafts is possible.

In the second operating mode, the second shaft-changing multi-car system is not operated in the second number of elevator shafts. Instead, the possible location of the at least one of the at least two cars, which in the second operating mode is not available for transport operations in the other first areas, is limited to the second number of elevator shafts. The first shaft-changing multi-car system is operated especially in the second operating mode in the first number of elevator shafts. The second number of cars can be used in the second operating mode for transport operations in other elevator shafts become. Individual or all of the second number of cabins may also be stored in the second number of elevator shafts.

In addition to the method for operating an elevator system, the invention further relates to a corresponding elevator system. All the above-mentioned features and advantages should apply analogously to the method according to the invention and to the elevator system according to the invention. In particular, the elevator system comprises a suitable control unit, which is set up to carry out a preferred embodiment of the method according to the invention.

Advantageously, the at least two elevator shafts of the elevator system each extend over a plurality of floors. In the elevator shafts shaft doors are provided to several or all of the plurality of floors.

Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings. It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention. The invention is illustrated schematically by means of embodiments in the drawing and will be described below with reference to the drawing.

figure description Figures 1 to 4 each show schematically a preferred embodiment of an elevator system according to the invention, each of which is adapted to carry out a preferred embodiment of a method according to the invention

FIGS. 1 to 4 each schematically illustrate a preferred embodiment of an elevator system according to the invention, each of which is set up to carry out a preferred embodiment of a method according to the invention. In the figures la, 2a, 3a and 4a is shown schematically in each case how the respective elevator system is operated in a first operating mode according to a preferred embodiment of a method according to the invention. In the figures lb, 2b, 3b, 3c and 4b is shown schematically in each case how the respective elevator system is operated in a second operating mode according to a preferred embodiment of a method according to the invention.

In FIG. 1, a preferred embodiment of an elevator system according to the invention is illustrated schematically and designated by 100. The elevator system

100 has two elevator shafts 101 and 102.

In Figure la, the elevator system 100 is shown schematically in the first mode of operation. In the elevator shafts 101 and 102 a plurality of cabins 110 is moved, in this example eight cabins. In a top floor and a bottom floor of a corresponding building having the elevator system 100, connections 105 and 106 are provided between the elevator shafts 101 and 102, respectively. Through these connections 105 and 106, the cabins between the elevator shafts 101 and 102 can change.

In this example, cabins in the elevator shafts 101 and 102 are each moved unidirectionally, ie in each case only in one direction. In the elevator shaft

101 cabins are moved only down and in the hoistway 102 only up. In the illustrated example, cab 111 in upper link 105 changes from elevator shaft 102 into elevator shaft 101, and cab 112 in lower link 106 changes from elevator shaft 101 into elevator shaft 102. Cabins 110 are in elevator shafts 101 and 10 in the first operating mode 102 operated in particular as a shaft-changing multi-cabin system.

The elevator system 100 is operated in response to operating parameters in the first or second operating modes. For example, utilization profiles of the elevator system 100 are used as such operating parameters. These utilization profiles describe, for example, at what times of day it comes at peak times. In the course of these rush hours, a large number of transport processes are to be carried out and a maximum transport capacity of the elevator system 100 is to be provided. At these peak times, the elevator system 100 is operated in the first operating mode according to FIG.

Outside of these rush hours, the elevator system 100 is operated in the second operating mode according to FIG. 1b. In the second mode of operation, in this example elevator shaft 102 is selected over its entire vertical length as second area 120, to which the possible location of particular cabins is restricted. In the example shown, a first number of cabins 130, in this example six cabins, are moved into this second area 120. The possible location of this first number of cabins 130 is restricted to this second area 120.

This first number of cars 130 is not available for transport operations in a remaining first area 121 of the elevator shafts. In this example, the elevator shaft 101 represents this remaining first area. The remaining cars 140 perform regular transport operations in the remaining first area 121 of the elevator shafts. The two remaining cabins 140 are in the Elevator shaft 101 in this second operating mode bi-directionally proceed, so both up and down.

The first number of cars 130 is stored or parked in the second area 120 in particular. The first number of cabins 130 performs no transport operations. For example, individual or all of the cabins of the first number of cabins 130 in the second area 120 may be serviced. In the course of this, for example, maintenance, service and / or repair work on the respective cabins can be carried out. For example, it can be checked whether the respective cabins bring required services and meet given safety guidelines.

A further preferred embodiment of an elevator system according to the invention is shown schematically in FIG. 2 and designated by 200. The elevator system 200 has three elevator shafts 201, 202, 203. In a top and a bottom floor respectively connections 205 and 206 between the elevator shafts 201, 202, 203 are provided.

In the first operating mode, according to FIG. 2a, a number of cabins 210, in this example eleven cabins, are moved in the elevator shafts 201, 202, 203. The cabins 210 may alternate between the elevator shafts 201, 202, 203. In this example, cabins are bidirectionally moved in all three elevator shafts 201, 202, 203, ie, both upwards and downwards. In the second operating mode according to FIG. 2b, the elevator shaft 203 is selected over its entire vertical length as second area 220, to which the possible location of certain cabins is restricted, in which cabs are stored, for example. In the present example, a first number of cars 230 are stored in this second area 220, in this example six cabins. This first number of cabins 230 is not available for transport operations in a remaining first area 221 of the elevator shafts Available. The elevator shafts 201 and 202 represent this remaining first area 221. The remaining cabs 240 carry out regular transport operations in the remaining first area 221 of the elevator shafts. The remaining cabs 240 are, for example, only moved upwards in the elevator shaft 201 and only downwards in the elevator shaft 202.

In FIG. 3, a further preferred embodiment of an elevator system according to the invention is shown schematically and designated by 300. The elevator system 300 has four elevator shafts 301, 302, 303 and 304. There are three connection paths 305, 306 and 307 between the elevator shafts 301, 302, 303, 304 are provided. The communication path 305 is provided on a top floor, for example, the tenth floor, and the communication path 307 on the bottom floor, for example, the ground floor. The connection path 306 is provided, for example, in the fifth floor.

In the first operating mode according to FIG. 3 a, a number of cabins 310, in this example fifteen cabins, are moved in the elevator shafts 301, 302, 303 and 304. In particular, all of the cabins 310 can alternate between all four elevator shafts 301, 302, 303 and 304. The elevator shafts 301, 302, 303 and 304 are each used unidirectionally. In the elevator shafts 301 and 303 cabins are only moved upwards, in the elevator shafts 302 and 304 only downwards.

In the second operating mode according to FIG. 3b, a part of the elevator shafts 303 and 304 is respectively selected as a second area 320 for storing cabins. For example, the part between the sixth and tenth floor is selected as the second area 320, respectively. The part between the ground floor and the sixth floor of the elevator shafts 303 and 304 and the elevator shafts 301 and 302 represent the remaining first area 321 of the elevator shafts. A first number of cabins 330 are stored in the second area 320, in this example six cabins, ie the possible location of the cabins 330 is restricted to the second area 320. This first number of cabins 330 is not available for transport operations in the remaining first area 321 of the elevator shafts. The remaining cabins 340 carry out regular transport operations in the remaining area 221 of the elevator shafts. The remaining cabins 340 are each unidirectionally moved in the elevator shafts 301 and 302 as well as in the remaining parts of the elevator shafts 303 and 304. As an alternative to storing individual cars in the selected second area, individual cars whose possible location has been restricted to a second area can also be used for local transport operations within this second area, as illustrated by FIG. 3c.

In Figure 3c, the elevator system 300 is shown schematically in the second mode of operation analogous to Figure 3b. In this example, a portion of the hoistway 304 is selected as a second area 322 to which the possible location of particular cabins is restricted. For example, the part between the sixth and tenth floors is selected as the second area 322 to which the possible location of a car 331 is restricted. The part between the ground floor and the sixth floor of the elevator shaft 304 and the elevator shafts 301, 302 and 303 constitute the remaining first area of the elevator shafts. The remaining cabs 340 carry out regular transport operations in the remaining first area of the elevator shafts. The remaining cabins 340 are each unidirectionally moved in the elevator shafts 301, 302, 303 and in the remaining part of the hoistway 304, for example. The cabin 331 is used for transportation operations within the second area 322. The cabin 331 leaves the second area 322 in the course of this Transport operations not. The cabin 331 is moved in the second area 322, for example bidirectionally.

Of course, multiple cabins may also be used for transport operations 5 within the second area 322, analogous to cab 331. The number of cabins used for transport operations within the second area 322 may be the same as the size of the second area 322 during the second operating mode be changed if necessary, for example, depending on operating parameters of the elevator system.

10

FIG. 4 schematically shows a further preferred embodiment of an elevator system according to the invention and denotes 400. The elevator system 400 has four elevator shafts 401, 402, 403 and 404. There are two connections 405 and 406 between the elevator shafts 401, 402, 403, 404 15 are provided.

In the first operating mode according to FIG. 4a, the elevator shafts 401 and 402 form a first number of elevator shafts, the elevator shafts 403 and 404 form a second number of elevator shafts. A first number of cabins

20 411, in this example seven cabins, are moved in the first number of elevator shafts and operated there as a first shaft-changing multi-car system 451. A second number of cabins 412, in this example eight cabins, are moved in the second number of elevator shafts and there as a second bay-changing multi-cab system 452

25 operated. In the elevator shafts 401 and 403, the respective cars are only moved up and down the elevator shafts 402 and 404.

In Figure 4b, the elevator system 400 is shown schematically in the second mode of operation. In the second number of elevator shafts no second shaft-changing multi-car system is operated. The elevator shafts 403 and 404 are selected as the second area 420, to which the possible Whereabouts of certain cabins is limited, for example, in which cabins are stored. The elevator shafts 401 and 402 represent the remaining first areas 421 of the elevator shafts. Ten cabins 430 are stored in the second area 420 and are not available for transport operations in the remaining first area 421 of the elevator shafts. The five remaining cabins 440 are only moved upwards in the elevator shafts 401 and only downwards in the elevator shaft 402.

The elevator systems 200, 300 and 400 according to FIGS. 2, 3 and 4 are in particular operated in each case as a function of operating parameters in the first or the second operating mode, analogous to the elevator system 100 according to FIG. 1. In particular, load profiles of the respective elevator systems 200, 300 or 400 used as such operating parameters. The cabins 130, 230 and 430, respectively, which are stored in the respective second area 120, 220 and 420 according to FIGS. 1b, 2b and 4b, can also be analogous to the cabins 331 of the elevator system 300 for transport operations within the respective second Range 120 220 or 420 are used, analogous to Figure 3c.

LIST OF REFERENCE NUMBERS

100 elevator system

5 101 Elevator shaft

102 elevator shaft

105 Connecting path between elevator shafts

106 Connection between elevator shafts 110 cabins

10 120 restricted area

121 remaining area

130 cabin

200 elevator system

201 elevator shaft

15 202 elevator shaft

203 elevator shaft

205 Connecting path between elevator shafts

206 Connection between elevator shafts 210 cabins

20 220 restricted second area

221 remaining first area

230 cab

300 elevator system

301 elevator shaft

25 302 elevator shaft

303 elevator shaft

304 elevator shaft

305 Connection between elevator shafts

306 Connection between elevator shafts 30 307 Connection between elevator shafts

310 cabins 320 restricted second area

321 remaining first area

322 restricted second area

323 remaining first area

5 330 cab

331 cabin

400 elevator system

401 elevator shaft

402 elevator shaft

10 403 elevator shaft

404 elevator shaft

405 Connection between elevator shafts

406 Connection between elevator shafts

411 cabins

15 412 cabins

420 restricted second area

421 remaining first area

430 cabin

Claims

claims

A method of operating an elevator system (100, 200, 300, 400) having at least two cars (110, 210, 310, 411, 412) and at least two vertically extending elevator shafts (101, 102, 201, 202, 203, 301) , 302, 303, 304, 401, 402, 403, 404), wherein the at least two cars (110, 210, 310, 411, 412) between the at least two elevator shafts 101, 102, 201, 202, 203, 301, 302, 303, 304, 401, 402, 403, 404),

- In a first operating mode transport operations of the

at least two cabins (110, 210, 310, 411, 412) are carried out in the at least two elevator shafts (101, 102, 201, 202, 203, 301, 302, 303, 304, 401, 402, 403, 404), and

- In a second mode of operation a possible residence

at least one (130; 230; 330; 331; 430) of the at least two cars (110; 210; 310; 411,412) on at least one second area (120; 220; 320; 322; 420) of at least one (102 ; 203; 303, 304; 304; 403, 404) of the at least two elevator shafts (101, 102; 201, 202, 203; 301, 302, 303, 304; 401, 402, 403, 404), in particular in a targeted manner and wherein the at least one (130; 230; 330, 331; 430) of the at least two cars (110; 210; 310; 411,412) for transport operations in remaining, first areas (121; 221; 321; 421; 323) of at least two

Lift shafts (101, 102, 201, 202, 203, 301, 302, 303, 304, 401, 402, 403, 404), in particular targeted, is not available

- In particular in the first mode of operation cross-divisional

Transport operations between the first areas (121, 221, 321, 421, 323) and the at least one second area (120, 220, 320, 420) are performed.

2. The method of claim 1, wherein in both the first areas and in the second areas, the elevator shafts are provided with shaft doors to a boarding of passengers to the cabins in the first mode of operation

allow, especially in the second mode of operation such shaft doors that allow access to at least a second areas, specifically for a boarding passengers to the cabins are not available.

3. The method of claim 1 or 2, wherein in the second mode of operation in the at least one second area (120; 220; 320; 420) no

Transport operations are performed and wherein the at least one (130; 230; 330; 430) of the at least two cars (110; 210; 310; 411,412) is not available for transport operations.

4. The method of claim 1, wherein the at least one cabin of the at least two cabs in the at least one second area is at least one of the at least two cabins 420) is serviced.

The method of claim 1 or 2, wherein in the second mode of operation, at least one (331) of the at least two cars (110; 210; 310; 411,412) carry out transport operations in the at least one second area (322).

6. The method according to any one of the preceding claims, wherein depending on operating parameters of the elevator system (100; 200; 300; 400) between the first and second operating mode is changed.

7. Method according to one of the preceding claims, wherein a number of cabins (130; 230; 330; 331; 430) not available for transport operations in remaining first areas (121; 221; 321; 421; 323) in the second Operating mode is changed depending on operating parameters of the elevator system.

A method according to any one of the preceding claims, wherein a number and / or a size of the at least one second region (120; 220; 320; 322; 420) in the second mode of operation is varied in accordance with operating parameters of the elevator system.

9. The method according to any one of claims 6 to 8, wherein a required

Transport capacity, a waiting time of passengers, a current load of the elevator system (100, 200, 300, 400), a load profile, times of day and / or measurements of load and / or passenger determination sensors as

Operating parameters of the elevator system can be used.

10. The method of any preceding claim, wherein the at least one second region (120; 220; 320; 322; 420) extends over a plurality of

Floors of a building comprising the elevator system extends.

11. A method according to any one of the preceding claims, wherein the at least one second region (120; 220; 320; 322; 420) extends over the full vertical length or not the full vertical length of the at least one (102; 203; 303; 304, 304, 403, 404) of the at least two elevator shafts (101, 102, 201, 202, 203, 301, 302, 303, 304, 401, 402, 403, 404).

12. The method according to any one of the preceding claims, wherein the at least two cars (110, 210, 310, 411, 412) in the at least two elevator shafts (101, 102, 201, 202, 203, 301, 302, 303, 304, 401 , 402, 403, 404) as one or more shaft changing multi-car systems.

13. The method of claim 12, wherein in the first mode of operation, a first number of cars (411) in a first number of elevator shafts (401, 402) is operated as a first bay-changing multi-cabin system (451) and wherein a second number of cabins (412 ) in a second number of Lift shafts (403, 404) as a second shaft changing

Multi cabin system (452) is operated, wherein in the second operating mode in the second number of elevator shafts (403, 404) is not the second

and wherein the possible location of the at least one (430) of the at least two cars (411, 412) is restricted to the second number of elevator shafts (403, 404).

An elevator system (100, 200, 300, 400) comprising at least two cabins (110, 210, 310, 411, 412) and at least two vertically extending elevator shafts (101, 102, 201, 202, 203, 301, 302, 303) , 304, 401, 402, 403, 404), wherein the at least two cars (110, 210, 310, 411, 412) are arranged to be connected between the at least two elevator shafts 101, 102, 201, 202, 203, 301, 302, 303, 304, 401, 402, 403, 404) and wherein the elevator system (100; 200; 300; 400) is arranged to operate according to a method of the preceding claims.

An elevator system (100; 200; 300; 400) according to claim 14, wherein the at least two elevator shafts (101, 102; 201, 202, 203; 301, 302, 303, 304; 401, 401;

402, 403, 404) each extend over a plurality of floors and wherein in the elevator shafts (101, 102; 201, 202, 203; 301, 302, 303, 304; 401, 402,

403, 404) shaft doors are provided to a plurality or all of the plurality of floors.