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Publication numberUS3625311 A
Publication typeGrant
Publication dateDec 7, 1971
Filing dateApr 21, 1970
Priority dateApr 21, 1970
Also published asCA933297A1, DE2119180A1, DE2119180C2
Publication numberUS 3625311 A, US 3625311A, US-A-3625311, US3625311 A, US3625311A
InventorsFrederick Henry Nowak, Henry Joseph Pasternak
Original AssigneeOtis Elevator Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Controls for multicompartment elevators
US 3625311 A
Abstract  available in
Images(17)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

United States Patent Frederick Henry Nowak New Fairiield, Conn.;

Henry Joseph Pasternak, Parlin, NJ. [2]] Appl. No. 30,408

[72] Inventors [22] Filed Apr. 21,1970

[45] Patented Dec. 7, 1971 [73] Assignee Otis Elevator Company New York, NY.

[54] CONTROLS FOR MULTICOMPARTMENT Primary Examiner-Benjamin Dobeck Assistant Examiner-W. E. Duncanson, Jr. Attorneys-Joseph L. Sharon and Robert T. Mayer ABSTRACT: Controls for multicompartment elevator cars including, one, an arrangement operating while a car is parked and in response to the answering of a hall call for one direction of travel by one compartment to delay for at least a predetermined period the answering of a hall call for the other direction by the other compartment; two, an arrangement for preventing under certain circumstances the registration of certain car calls in each of the compartments of a car; three. an arrangement in which two separate hall call registration devices are provided at a predetermined intermediate landing for indicating desired travel in a particular direction from that landing, one for travel to odd landings in that direction and the other for travel to even landings; four. an arrangement for stopping some of a plurality of two compartment cars with their lower compartments for odd landing hall calls and the rest of the cars with their upper compartments for even landing hall calls; five, an arrangement for preventing both the registration of car calls for even landings in lower compartments stopped for odd landing hall calls and the registration of our calls for odd landings in upper compartments stopped for even landing hall calls; six, an arrangement for transferring selection at a dispatching floor from a selected car to another car in response to an indication that a passenger at that floor desires to travel to a landing which is not served by the compartment of the selected car adjacent the dispatching floor; and seven, an arrangement for transferring selection at a dispatching floor from a selected car to another car in response to the registration of a hall call at a predetermined landing which the selected car cannot answer.

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CONTROLS FOR MULTICOMPARTMENT ELEVATORS This invention relates to elevator control systems for cars having multiple passenger compartments. More particularly, it pertains to improvements in-elevator control systems for cars having two compartments.

In a suitable installation, a double compartment elevator car can serve two landings simultaneously. Thus it operates more efficiently than a single compartment car would in the same installation because it can answer the same number of calls in less time with less stops.

One known arrangement for multicompartment cars operates a group of such cars under the control of a well known groups supervisory system in which the cars travel in what is known as round trips. Each car starts each trip from the bottom tenninal, travels up either to the top terminal or to a landing below that terminal for which a call is registered, usually the highest call, and then returns to the bottom terminal. During light traffic periods all cars park at the bottom terminal waiting to be dispatched as needed.

Recently it has become more desirable to operate groups of elevator cars in systems which segregate the landings served by the cars into zones of landings. During light trafi'ic periods the cars of these systems are parked in the zones in a distributed fashion throughout the hoistway. ln systems of this type with single compartment elevator cars, the answering of up and down hall calls registered at the landings is straightforward. A hall call is registered either at the landing at which a car is located or above or below that landing.

The answering of an up or a down hall call registered at the landing at which a single compartment car is located is accompanied by the opening of the car's doors in response thereto. This is accomplished by providing either an arrangement in which the hall call establishes the appropriate direction of travel for the car before the doors are opened or an arrangement in which the car call registered by the passenger upon entering the car establishes the appropriate direction of travel. In neither arrangement is there anything more than a remote chance of a passenger unknowingly boarding the car and being taken in a direction opposite to that in which he desires to travel; even in those situations in which he is one of two passengers who both register calls at the same landing for opposite directions of travel. In one arrangement, that which establishes direction before the doors are opened, one of these two calls is not cancelled and the system indicates which passenger has preference in using the car. In the other arrangement both calls might be cancelled but the passengers themselves can decide who should have preference. I

In those situations in which a hall call is registered either above or below the location of a single compartment car, at a landing to which the car is temporarily precluded from answering hall calls, no response ensues by that particular car. If on the other hand the car can answer the call, response is had by l), determining the location of the landing at which the call is registered with respect to the location of the car, (2), establishing the proper direction of travel for the car in accordance with these respective locations, and (3), causing the car to start in the established direction.

Where a double compartment passenger elevator car is employed in a suitable installation having a control system in which the car can remain at rest at a position intermediate the terminal landings, it means that the car can park with its upper compartment located adjacent one landing and with its lower compartment located adjacent the next lower landing. In these circumstances, it is desirable to have the system arranged so that the answering of a hall call for one direction of travel registered at the landing adjacent one compartment delays the answering of a hall call for the other direction of travel registered at the landing adjacent the other compartment for at least a predetermined period of time. Otherwise, one compartment could answer a hall call registered by an intending passenger desiring to travel in one direction while the other compartment was answering a hall call registered by another intending passenger desiring to travel in the opposite direction.

In such a situation, one of the passengers upon boarding his compartment would be taken in a direction opposite to that in which he desires to travel.

It is an object of this invention to provide elevator control systems having multicompartment cars, which park their cars at intermediate landings, with an arrangement which in response to the answering of a hall call for one direction of travel registered at the landing adjacent one compartment delays the answering of a hall call for the other direction of travel registered at the landing adjacent the other compartment for at least a predetermined period of time.

In referring to the answering of a hall call herein is meant those operations which a car undergoes in order to provide service to the intending passenger who registered the call. In the disclosed embodiment these include (i), causing the car to travel to the landing at which the call is registered and to stop with one of its compartments located adjacent thereto, if one of its compartments is' not already so located, (2), opening the doors of that compartment, (3), cancelling the call, and (4), lighting a hall lantern indicating the availability of the car to travel in the direction indicated by the call.

As will be described, control systems can be arranged so that some of the forgoing operations take place notwithstanding a call is not being answered. Thus, while one compartment is answering a call at a particular landing it might be desirable to open the doors of both compartments. Even so, if a hall call is registered at the landing adjacent the other compartment for the direction opposite that of the hall call being answered, according to the invention, the answering of the opposite direction hall call is delayed for at least a predetermined period of time. During this time, in the disclosed constructed embodiment, the unanswered hall call is not cancelled and does not cause the lighting of a hall lantern indicating the availability of the car for travel in its direction. Should this time elapse without the registration of a further call for the same direction of travel as the answered call, the opposite direction hall call is then answered as a result of which it is cancelled and the proper hall lantern is lighted.

The disclosed embodiment is arranged so that a car answers a hall call only after it has a direction of travel established which corresponds to that indicated by the call which is being answered. This insures the availability of the car for travel in the direction indicated by the call before the call is answered. Thus, some of the operations included in answering a hall call such as cancelling the call and lighting the proper hall lantern cannot occur before the direction corresponding to the call is established. Accordingly, the passenger is provided with an indication that his call is being answered only after the car is prepared to travel in the direction indicated by his call.

it is, therefore, another object of this invention to provide elevator control systems having multicompartment cars, which park their cars at intermediate landings, with an arrangement which enables a car to answer a hall call only after it has a direction of travel established for the direction indicated by the call.

It is also desirable in a system employing a double compartment car in which the car can park with its compartments located adjacent intermediate landings to have the system arranged so that the registration of a hall call at a landing at which either one of the compartments is located does not cause the car to travel to answer that call. On the contrary, the doors of the compartment located adjacent the landing at which the call is the call should open in response to the registration of the call. At the same time, of course, the car must be able to respond to calls at landings above its uppermost compartment and below its prepares compartment.

It is another object of this invention to provide elevator control systems having multicompartment cars, which park their cars at intermediate landings, with an arrangement which enables a parked car to remain at rest and answer any hall call registered at any landing adjacent which one of its compartments is located.

Another advantage of multicompartment elevator cars is that the service they provide from particular landings can be restricted. In elevator systems with double compartment cars, service from the first two landings can be restricted such that passengers boarding the lower compartment at the first, or lower lobby, landing can only register car calls for landings arbitrarily identified as odd landings while those boarding the upper compartment at the second or upper lobby, landing can only register car calls for the remaining landings identified as even landings. In some systems having double compartment cars a car can stop in answer to a hall call with either compartment located adjacent an intermediate landing. If restricted service is provided in this system, provision must be made to remove the restriction to permit an intending passenger at such an intermediate landing to register a car call for any landing in either compartment. Passengers might thwart the intended purpose of the restricted service arrangement, however, if unrestricted service were permitted as soon as the car left the first two landings. To discourage misuse of the system, restricted service is retained in both compartments until the car answers a hall call. In this way passengers who board at either of the first two landings tend to comply with the restricted service operation. Failure to comply may result in being carried beyond the floors to which they desire to travel, since they have no guarantee that the car is going to answer a hall call before reaching those floors.

It is another object of this invention to provide elevator control systems having multicompartment cars with an arrangement which prevents the registration of certain car calls in each of the compartments while the car is located with its compartments adjacent predetermined landings.

It is another object of this invention to provide elevator control systems having multicompartment cars with an arrangement which prevents the registration of certain car calls in each of the compartments until the car answers a hall call.

Restricted service may also extended to an intermediate landing above the first two landings, not withstanding passengers enter one of the compartments at this landing. To accomplish this, separate odd and even landing hall call registration devices are provided at this landing. In this way, intending passengers by registering whether they desire to travel to an odd or even landing cause a lower, or odd landing serving compartment, or an upper, or even landing serving compartment, respectively, to stop in answer to the call adjacent the landing at which the call is registered. Signs may be employed at this landing to instruct intending passengers which landings a compartment is serving so that when the doors open they may be informed as to whether the compartment will transport them to their desired destination or not.

It is, therefore, a feature of this invention to provide elevator control systems having multicompartment cars with even and odd landing hall call registration devices at a particular intermediate landing and to arrange the stopping means of the cars to stop them with given ones of their compartments adjacent that particular landing in response to the registration of hall calls at that landing.

It is another feature of this invention to cause a first group of cars to stop with their lower compartments adjacent a particular landing in response to the registration of odd landing hall calls thereat and to prevent this first group from stopping with either compartment adjacent that landing in response to the registration of even landing hall calls; and in addition to cause the remaining second group of cars to stop with their upper compartments adjacent that particular landing in response to the registration of even landing hall calls and to prevent this second group from stopping with either compartment adjacent that landing in response to the registration of odd landing hall calls.

It is yet another feature of this invention to prevent the registration of odd landing car calls in the upper compartment of a car which stops at a particular landing with its upper compartment in response to even landing hall calls while this car is so stopped and to prevent the registration of even landing car calls in the lower compartment of a car which stops at that particular landing with its lower compartment in response to odd landing hall calls while it is so stopped.

The disclosed system attempts to keep two cars parked with their compartments adjacent the upper and lower lobbies for serving intending passengers thereat. Moreover the system is arranged to attempt to keep at these lobbies one car whose lower compartment serves a particular intermediate landing to which restricted service is extended and one car whose upper compartment serves this particular landing. In the disclosed system the third landing is the intermediate landing to which restricted service is extended and by parking cars at the lobbies in the foregoing manner, a car which can serve the third landing is provided at both lobbies for passengers who desire to travel from either lobby to the third landing.

One of the cars at the lobbies is selected as the next to leave. As a result provision is made for transferring selection in case the selected car is not capable of serving the third landing with that one of its compartments which is adjacent the lobby level at which a passenger desiring to travel to the third landing is located. In such circumstances the registration of a hall call at either of the lobbies without the subsequent registration of a car call in one of the compartments of the selected car within a predetermined period causes a selection transfer operation to select the other car parked at the lobbies.

It is, therefore, another object of this invention to provide an elevator control system having multicompartment cars with an arrangement which parks two cars at the lobbies, one of which serves a particular intermediate landing with its lower compartment and the other of which serves that particular landing with its upper compartment, which selects one of the lobby cars as the next to leave and which is capable of transferring selection from one car to another upon an indication that a passenger at one of the lobbies desires to travel to that particular intermediate landing and that the selected car does not serve that landing with that one of its compartments which is adjacent the landing at which the passenger is located.

With restricted service extended to a particular intermediate landing through the provision of odd and even landing hall call registration devices at that landing and service' provided to that landing by the selected car at the lobbies, which can only answer either an odd or an even landing hall call, it is also desirable to transfer selection in case the selected car is not capable of answering a hall call registered at that particular intermediate landing.

It is, therefore, yet another object of this invention to provide an elevator control system having multicompartment cars with an arrangement which includes odd and even landing hall call registration devices at a particular intermediate landing, which parks two cars at the lobbies, one of which serves odd landing hall calls at that particular landing and the other of which serves even landing hall calls at that particular landing, which selects one of the lobby cars as the next to leave and which is capable of transferring selection from one car to another upon the registration at the particular intermediate landing of a hall call which the selected car is not capable of answering.

These and other objects, features and advantages of the present invention will be appreciated from the foregoing and the following description and appended claims when considered in conjunction with the drawing, in which,

FIGS. 1, 2, 3, 4, 6, 7 and 8 are a schematic wiring diagram in straight line form of a plurality of elevator control circuits;

FIG. 5 is a schematic wiring diagram of hall lantern circuits;

FIGS. 9 and 10 are schematic wiring diagrams of circuits of car call registration devices and associated control equipment;

FIGS. 11 and 14 are schematic wiring diagrams of circuits of hall call registration devices and associated control equipment;

FIGS. 12, l3, l5 and 16 are schematic wiring diagrams of circuits employed in conjunction with the circuits of FIGS. 11 and 14;

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1997260 *Apr 7, 1932Apr 9, 1935Otis Elevator CoElevator system
US2938605 *Mar 13, 1959May 31, 1960Otis Elevator CoElevator system
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4206438 *Feb 27, 1978Jun 3, 1980Eiser John RElevator control circuit module
US4487293 *Mar 24, 1983Dec 11, 1984The United States Of America As Represented By The Secretary Of The NavyElevator/hatch controller platform leveling logic with safety features
US4582173 *Aug 6, 1984Apr 15, 1986Inventio AgGroup control for elevators with double cars
US4632224 *Apr 12, 1985Dec 30, 1986Otis Elevator CompanyMulticompartment elevator call assigning
US4655325 *Sep 12, 1985Apr 7, 1987Inventio AgMethod and apparatus for controlling elevators with double cars
US4836336 *Jul 12, 1988Jun 6, 1989Inventio AgElevator system floor call registering circuit
US6176351 *Dec 22, 1998Jan 23, 2001Kabushiki Kaisha ToshibaDouble deck elevator allocation controlling apparatus
US8151943Aug 19, 2008Apr 10, 2012De Groot Pieter JMethod of controlling intelligent destination elevators with selected operation modes
US8397874Mar 7, 2012Mar 19, 2013Pieter J. de GrootIntelligent destination elevator control system
US8800723 *Mar 15, 2013Aug 12, 2014Kone CorporationElevator system having floors locked from receiving service
DE3611173A1 *Apr 3, 1986Oct 16, 1986Otis Elevator CoFahrstuhlanlage mit mehrabteilkabinen-rufzuweisung
EP0134892A1 *May 7, 1984Mar 27, 1985Inventio AgLift group control for double-compartment cars
EP0177741A1 *Aug 31, 1985Apr 16, 1986Inventio AgControl devices for lifts with double cars
EP0459169A1 *May 2, 1991Dec 4, 1991Inventio AgGroup control for elevators with double cabins with direct allocation of calls
EP2500308A1 *Nov 9, 2009Sep 19, 2012Mitsubishi Electric CorporationDouble-deck elevator group control device
Classifications
U.S. Classification187/380
International ClassificationB66B1/14, B66B1/24
Cooperative ClassificationB66B2201/306, B66B2201/102, B66B1/2458, B66B2201/301
European ClassificationB66B1/24B6