JPH04354771A - Self-propelling type elevator system - Google Patents

Abstract

PURPOSE:To enhance the efficiency of running control by computing and controlling speeds of respective cages so that the cages can pass each other or one of them running on a straight passway can pass over the other of them having entered onto a siding in a non-stop zone. CONSTITUTION:There are laid in a non-stop zone Z2 a straight passway R1 having a shortest distance and a siding way R2 branching from and bypassing the straight passway. Drive power supply control devices 13 are set in a number corresponding to the number of cages 1, and are connected to primary coils 12 by way of section selecting switches 14. Control devices 13 of respective cages are connected to a group control device 15. The time when an upper cage 1 passes over the upper junction 11 and the time when a lower cage 1 passes over the lower junction 10 are estimated and computed, and if there is a risk of collision between them, the lower cage 1 is led into the siding R2 while its running speed is changed. The above-mentioned computation is carried by the group control device 15, and accordingly, it is possible to prevent the preferential cage 1 from making collision with without changing its running speed so as to improve operation efficiency.

Description

[Detailed description of the invention]

[Object of the invention]

0002

[Industrial Application Field] The present invention is a self-propelled elevator for simultaneously running multiple self-propelled elevator cars on the same traveling route, which use a linear motor as a drive device and are capable of running vertically and horizontally. Regarding the system.

0003

[Prior Art] Most of the elevator systems that have been widely used in the past have been , a system in which a car and a counterweight are connected in a rope-like manner, and one car is arranged in one hoistway.

[0004] This crane-type elevator system has a car and a counterweight in the hoistway, each with a guide rail (
A guide rail is provided between the two, and a rope connects the two in the form of a rope via the hoist sheave and deflection sheave installed in the machine room above the hoistway. In recent years, three-phase induction motors and inverter devices equipped with microprocessors in control devices have been widely used as motors for driving hoists.

[0005] In such a hanging type elevator system, in order to move the car, only the driving force corresponding to the unbalanced load with the counterweight is required, excluding the running loss due to the machine, so that the driving device and the control device are It has the advantage of requiring only a small capacity, and since it is a method that has been widely used for a long time, the technology has been established in terms of performance and safety.
Reliable.

[0006] However, in recent years, as a future perspective, new ideas for inter-floor transportation systems have been proposed to meet the demands of skyscrapers and ultra-high-rise buildings. One of the new transportation systems is
This is a self-propelled elevator system in which the car itself runs without using ropes, and can be used not only in the vertical direction, but also in the vertical direction.
This is a concept for an elevator system that can move vertically and horizontally, with a configuration that allows it to run horizontally as well.

The concept of this self-propelled elevator system is as follows:
This breaks down the conventional concept of one car per hoistway, and is attracting attention as an innovative technology that allows multiple cars to run in one hoistway.

FIG. 6 shows the configuration of such a self-propelled elevator system that can freely run vertically and horizontally, in which a linear motor secondary conductor 2 is installed in a plurality of cars 1, and a linear motor secondary conductor 2 is installed in the hoistway (lifting shaft). A driving thrust is obtained by the magnetic force between the linear motor primary coil 3 and the linear motor primary coil 3. As a safety device, a brake 4 and a shock absorber 5 for mitigating the impact caused by mutual collision between the cars 1, and a superconducting magnet 6 installed inside or below the shock absorber 5 for connected traveling are installed. We are prepared. Furthermore, on the top floor,
A hanging machine 7 and a movable plate 8 for horizontal running are installed, and a hydraulic jack 9 is also installed on the lowest floor, allowing a plurality of cars 1 to run on one running path.

[0009] Various configurations of linear motors are known, but one that has a relatively simple structure and can obtain a large thrust uses neodymium iron or samarium as a secondary conductor. Using cobalt-based permanent magnets,
A linear synchronous motor (LSM) is used in which a coil with a three-phase AC winding structure is installed as a primary conductor.

0010

[Problems to be Solved by the Invention] In such a proposed self-propelled elevator system, one car does not occupy one hoistway space as in the conventional sliding type elevator system. Since multiple cars can be arranged, transportation efficiency can be increased, especially when the length of the hoistway is long, such as in a skyscraper or super-tall building. In this case, efficiency can be further improved by arranging a plurality of cars in a plurality of hoistways.

An example of such an arrangement is shown in FIG.
In this arrangement example, two hoistways A and B are provided in a building, and four cars 1 are arranged in these hoistways A and B. Each car 1 travels vertically and horizontally in response to a user's call, and can operate while making effective use of the travel path.

However, in such an elevator system that can run freely, it is not possible to run the car in the shortest time in response to the instructions of the users in the car, as in the past, and it is difficult to make a schedule that corresponds to the traffic demand within the building. Driving is required. This is to reduce the space required for elevating and descending the building.

[0013] Generally, in such a running route arrangement,
As shown in Figure 7, it is possible to improve the space factor by allowing horizontal movement at each of the floors 1 to 6 where stopping is possible, and by making the express zone as long as possible in other areas to enable high-speed travel. requested. In order to meet this requirement, it is necessary to restrict entry into zones where high-speed travel is possible to ensure effective operation.

[0014] This configuration is similar to the current road configuration, with the express zone being an expressway, the portion where traversal is possible being a general road, the traffic lights controlling traversal in traverse directions, and the entrances and exits to the express zone being controlled by traffic lights. corresponds to the toll booth. In other words, in the past, all hoistways were expressways, making it possible to optimally respond to user requests, but due to building space limitations, it was not possible to increase the number of elevators. Because a small number of elevators were handling traffic demand, there were many situations where waiting times increased.

[0015] Therefore, even in an elevator system that is capable of moving vertically and horizontally, an increase in the number of cars will lead to a reduction in waiting time, but on the other hand, it is predicted that the waiting time for traffic flow control in the hoistway will become longer. . Therefore, it is hoped that a system that can efficiently control traffic flow will be constructed.

[0016] The present invention has been made in view of the above technical problems, and an object thereof is to provide a self-propelled elevator system that can operate effectively for traffic flow control.

[Configuration of the invention]

[0018]

[Means for Solving the Problems] The present invention provides a self-propelled elevator system that is capable of moving vertically and horizontally within a dedicated running path within a building, including a general zone that can move vertically and horizontally along the dedicated running path, and a general zone that can move vertically and horizontally along the dedicated running path. The upper service floor and the lower service floor belonging to the vehicle are separated into an express zone that connects them, and a shortest straight route and a detour evacuation route are provided in parallel in the express zone, and the vehicle runs in the express zone. a traveling path switching means for switching the traveling route of each car between the straight path and the evacuation path; a speed control means for variable control of the traveling speed of each of the cars; and a plurality of cars traveling in the express zone. Compare the car's traveling direction, speed, and destination floor to identify which car should be prioritized, determine the speed required to avoid rear-end collision or collision, and issue a speed command to each car along the straight path and evacuation route. The vehicle is equipped with a group management control means for giving a command as to which road or road the vehicle should travel on.

Further, the self-propelled elevator system of the present invention is capable of traveling on the escape route at the same speed as traveling on the straight route by using the vertical thrust of each car, and the group management control means is configured to operate on the straight route and on the escape route. The operation of each car can be controlled based on the travel time difference of the evacuation route.

Further, in the self-propelled elevator system of the present invention, the group management control means determines the priority order of which of the plurality of cars traveling in the express zone is to be caused to travel on the straight path. It can be set based on the time difference between reaching the branch position between the straight path and the retreat path.

[0021] Furthermore, in the self-propelled elevator system of the present invention, the group management control means has already set a travel route for each car in the express zone by the travel route switching means, and If a rear-end collision or collision is predicted to occur between two cars, calculate the speed at which each car will be able to pass or overtake each other in the branching zone between the straight path and the evacuation path. It is possible to issue a command to the control means.

Furthermore, in the self-propelled elevator system of the present invention, the evacuation path in the express zone can be configured by a combination of a horizontal path and a vertical path connected to the straight path.

[0023]

[Operation] The self-propelled elevator system of the present invention is divided into a general zone that can move vertically and horizontally on a dedicated traveling path, and an express zone that connects the upper and lower service floors belonging to the general zone. In addition, the shortest straight route and detour evacuation route will be installed in the express zone.

The travel path switching means controls the travel path of each car traveling in the express zone to be switched between the straight path and the escape path, and the speed control means performs variable control of the travel speed of each car. Furthermore, the group management control means compares the traveling direction, speed, and destination floor of a plurality of cars traveling in the express zone, and identifies the car to be given priority;
The system also determines the speed required to avoid a rear-end collision or collision, and controls the car so that each car is given a speed command and a selection command for whether to travel on the straight path or the escape path.

[0025] In this way, in an express zone where a plurality of cars are traveling at high speed, traffic flow can be controlled to prevent them from colliding with each other.

Furthermore, in the self-propelled elevator system of the present invention, the vertical thrust of each car is used to make it possible to travel on the evacuation route at the same speed as when traveling on the straight route, and the group management control means is configured to operate on the straight route and on the evacuation route. By controlling the operation of each car based on the travel time difference on the road, traffic flow can be controlled without slowing down the speed of each car.

Further, in the self-propelled elevator system of the present invention, the group management control means determines the priority of which of the plurality of cars traveling in the express zone should be made to travel on the straight path. By making the setting based on the time difference in reaching the branch position between the car and the evacuation route, traffic flow control can be performed without slowing down the speeds of a plurality of cars.

Further, in the self-propelled elevator system of the present invention, the group management control means is configured to control a plurality of cars in the case where the travel path for each car in the express zone has already been set by the travel path switching means. If a rear-end collision or collision is predicted to occur between cars, the system calculates the speed at which each car can pass or overtake each other in the branching zone between the straight path and the evacuation path, and controls the speed control means. By issuing a command and controlling the speed of each car based on this speed command, it is possible to control the traffic flow of a plurality of cars in the same direction and in mutual directions within the same hoistway.

Furthermore, in the self-propelled elevator system of the present invention, the evacuation path in the express zone is configured by a combination of a horizontal traveling path and a vertical traveling path that are connected to the straight path. This avoids rear-end collisions and collisions and smooths traffic flow by temporarily retracting a specific car to the lateral travel path of this evacuation route until a faster car overtakes it or a car coming from the opposite side passes by. can be achieved.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be explained in detail below with reference to the drawings.

FIG. 1 shows an elevator arrangement according to an embodiment of the present invention, in which the running path is divided into a general zone Z where the running path can be run in all directions.
1, and an express zone Z2 that connects the upper service floor and lower service floor belonging to such general zones and can only be run in the vertical direction. A straight path R1 and an escape path R2 that branches off and detours from the straight path R1 are provided.

A simple method for controlling the traffic flow of a plurality of cars 1 in such a running road configuration is to divide the running road into several zones, and within each zone, one
Only one car can enter the zone, and other cars 1 that need to enter that zone can either select another zone and run there, or stop at a certain position and enter the zone. By waiting for an empty car to run, a plurality of cars 1 can be run without colliding.

[0033] This method is widely used in railways for controlling closed sections, and is effective if there are few selectable zones and the car's movement pattern is simple, but if the floor to be stopped is Elevator systems that vary from car to car and can move freely within a building cannot take advantage of its advantages.

As a solution to this problem, in the embodiment of the present invention, branch positions 10 and 1 are provided in the express zone Z2 as described above.
By installing a straight path R1 and an evacuation path R2 that branch at 1, and selecting which of the straight path R1 and the evacuation path R2 the car should pass depending on the traffic flow condition, it is possible to prevent cars coming from the opposite direction. Express Zone Z
The aim is to improve the space factor by reducing the number of elevators installed, as well as to improve the operating efficiency of the elevators.

[0035] Elevators are used for movement between a frequently used standard floor in a building and its surrounding floors, and for long-distance movement to upper floors. Therefore, in order to support the former, in the general zone Z1, the proposed system shown in Figure 6 allows vertical and horizontal movement for each service floor, and in the express zone Z2, the lower service floor and upper service floor can be moved vertically and horizontally. It is a high-speed travel path that connects floors that are far apart, and travels several hundred meters.

[0036] In this express zone Z2, travel time is required to be shortened compared to the general zone Z1, so actions such as simply moving sideways will slow down the vehicle and disturb the flow of traffic. Therefore, in order to cope with this, it is possible to branch and run at high speed without slowing down to travel on either route between the straight route R1 and the evacuation route R2 installed in the express zone Z2. That's what I do.

A branching system to meet such demands can be realized by switching the propulsive force of the primary conductor for longitudinal travel in the general zone Z1 to the straight path R1 and the retreat path R2. Further, in this case, the speed of the car 1 itself is lower than that of other horizontal running engines such as automobiles and trains, so the control can be easily performed. This is because vertical speed has a great effect on the human body.
This is because unless the speed is at most 1000 m/min or less, it will not only cause discomfort to passengers but also make it unbearable to travel.

[0038] A method for realizing such control is as follows.
Shown in FIGS. 2 and 3.

FIG. 2 shows a basic circuit configuration for supplying power to drive a linear motor, and shows a plurality of running paths A to Z.
This shows a system in which multiple cars (cars No. 1 to No. 4) are run. However, to simplify the explanation, only the ascending and descending directions are described.

In the figure, 12 is a traveling path primary coil of the driving linear motor, and for each shaft (shaft) A to Z, a plurality of section coils A to D are arranged in accordance with the length of the entire lifting stroke.
It is divided into y and installed. The reason why the primary coil 12 is divided into multiple sections in this way is that if the primary coil were to span the entire length of the travel path, it would be a long coil, but currently such a long coil has a large loss. This is because the economic efficiency of the entire system is impaired.

In the illustrated embodiment, the straight path R1 and the evacuation path R2 are arranged in parallel in the same hoistway in the express zone Z2, but even in such a case, each hoistway R1
, R2, and any hoistway R1
, R2 are also connected to the power supply so that the excitation current can be individually supplied to the section coils.

13 is a control device for supplying driving power;
They are installed corresponding to the number of cars 1 to X. Further, 14 is a section selection switch for supplying driving power from each control device 13 to each section coil 12, and as shown in the figure, the output end of each control device 13 is connected to all sections through the switch 14. It is connected to the coil 12. Therefore, each section coil 12 can be connected to section selection switchers 14 corresponding to the number of cars; for example, the control device 13 for the first car can switch section selection for the section in which the first car exists. The car can be propelled by selecting the section selector 14, supplying driving power to the section coil 12, and sequentially selecting the section selection changeover device 14 according to the traveling direction of the car.

[0043] In other words, the car of No. 1 is on the A running path a
If it exists in the section, the control device 13 of the car No. 1 first selects the section selection switch 14 of 1Aa,
When the car moves to section b of traveling route A, the section selection switch 14 of 1Ab is selected and the car is propelled.

In the figure, 15 is a group management control device;
It is connected to the control device 13 of each car number X, and executes operation management of each elevator car 1.

The control device 13 and group management control device 15 of each car have an internal configuration as shown in FIG. Each machine control device 13 includes an operation control section 16 and a linear motor control section 17. This operation control section 1
Reference numeral 6 controls the operation of the car 1 of the own elevator in accordance with commands from the group management control device 15. The linear motor control unit 17 also controls the linear motor primary coil 3 of a polyphase AC linear motor installed in each running route along the running route and the linear motor installed in each elevator car 1 as shown in FIG. It controls the control function of obtaining thrust by the magnetic force generated between the secondary conductor 2 and causing the car 1 to travel.

The group management control device 15 also includes a hall call control section 18 and an operation management section 19. The hall call control unit 18 controls input and output of hall call information from a hall call registration device (not shown) for each service floor. The operation management section 19 also transmits information with the control devices 13 of each car No. 1 to It inputs information, issues a response command to each car 1 based on the information, and determines the driving route on which each car 1 travels based on the driving and position conditions of all cars. It outputs a driving route assignment command that instructs the driving route, and an express zone traveling permission command that gives a permission instruction to the car 1 traveling in the express zone Z2. A command is output as to whether to take the route R1 or the evacuation route R2.

Next, the operation of the self-propelled elevator system having the above configuration will be explained.

The flowchart in FIG. 4 shows that the express zone Z2
This shows the operating procedure within the vehicle. As shown in this flowchart, within the express zone Z2, the operation of the cars 1 of each elevator car is controlled according to the processing of the group management control device 15, which controls the operation of a plurality of cars 1.

First, in step 1, it is determined whether control to the evacuation route R2 is necessary within the express zone Z2. This is the evacuation route R2 within the express zone Z2.
This is because the zone position where the vehicle exists, that is, the branch zone Z3, is small and most of the roads are simple straight travel routes, so this control is not necessary in many cases.

In the next step 2, it is determined whether or not there is a car 1 that has already entered the branch zone Z3 where the straight path R1 and the escape path R2 are branched.

In the following step 3, the time required for each car 1 to reach either the nearest branch position 10 or 11 is calculated. As an example, if the car 1 before entering the branching zone Z3 exists on the upper side and the lower side, the time taken for the upper car 1 to pass the upper branching position 11 at the current speed state and the time for the lower car 1 to pass through the upper branching position 11 at the current speed state, The time when the car 1 passes the lower branch position 10 is predicted. This predictive calculation can be easily performed because the two-car car is running within the express zone Z2 and there is no floor to stop on the way.

In the next step 4, based on the calculation result of step 3, the car 1 that can reach the branch zone Z3 first is given priority to enter the straight route R1. When the car 1 is running, the branching of the travel path is instructed by a travel control conductor (primary conductor) attached to the building, but if there is not enough time, there is a risk of collision between the cars 1. The calculation result of step 4 is processed to avoid the collision.

In step 5, as a continuation of the above-mentioned safety measures, the time for each car 1 to escape from the branching zone is predicted. This calculation is the time required to travel through each of the straight route R1 and the retreat route R2 determined in step 4.

In the next step 6, it is determined whether there is a possibility of a collision after the car 1 leaves the branch zone Z3. This means that car 1, which was selected to run on evacuation route R2 due to its low priority, has already traveled within branch zone Z3 before car 1, which traveled in branch zone Z3 first, escapes from there. This is because it is necessary to determine whether This is because, if the car 1 with a low priority has not reached the branching zone Z3, the collision will occur below the branching zone Z3. Here, if it is determined that no collision has occurred, the plurality of cars 1 will operate in the express zone Z2 according to the above process.

[0055] If the possibility of a collision is found in step 6, in the next step 7, the speed of the car performing priority travel is reduced and the process waits for the arrival of a car with a lower priority. .

Next, based on FIG. 5, the above-mentioned operation control within the express zone Z2 will be explained in more detail.

FIG. 5 illustrates a case where there is a possibility of a collision between the cars 1A and 1B in the express zone Z2. Naturally, the evacuation route R2 is a travel route used only in such cases, and when there is no risk of collision, only the straight route R1 is used to cover the traffic flow. FIG. 5 shows three driving patterns (a), (b), and (c) that can avoid a collision in a driving state where there is a possibility of such a collision. Each of these driving patterns can be implemented without causing traffic delays.

FIG. 5A shows a case where a car 1A descending from an upper floor and a car 1B ascending from a lower floor both enter the same express zone Z2.

In this case, priority for entering each of the traveling routes R1 and R2 is determined based on the time it takes to reach the upper branching position 11 and the lower branching position 10 of the straight route R1 and the retreat route R2, respectively. For example, if the car 1B travels laterally within the general zone Z1 and enters the express zone Z2 while stopped, the car 1A will reach the upper branch position 11 first, and the car 1A is lower branch position 10
If it is determined that the car 1B can travel in the time it takes to reach the lower branch position 10 before reaching the lower branch position 10, the car 1A will continue to travel on the straight route R1 at the current speed, and the car 1B will be able to move at the timing described above. The vehicle is controlled to travel on the escape route R2 at a speed that satisfies the following.

[0060] Here, if the above conditions are not satisfied,
When car 1A selects straight route R1, car 1B
If it is predicted that the car 1A will reach the lower branch position 10 before the car 1A reaches the lower branch position 10, the car 1A will run on the evacuation route R2 and The operation is controlled so that the car 1B travels on the straight route R1 based on the time difference.

Next, in FIG. 5(b), the car 1A descending from the upper floor is already on the straight route R1 of the express zone Z2.
This shows a case where the car 1B enters the express zone Z2 from a lower floor while traveling in the express zone Z2.

[0062] In this case, the travel pattern differs depending on the time taken for the car 1A to reach the lower branch position 10. First, if it is determined that by reducing the speed of the car 1A, the car 1B can reach the lower branch position 10 first before the car 1A reaches the lower branch position 10. As shown in the figure, the car 1B is caused to run at high speed on the escape route R2. In this case, the car 1B travels along the evacuation route R2, but it can travel at high speed, so passengers do not feel that it is too late to reach their destination floor, and the service is not degraded. It will never come.

FIG. 5(c) shows a case where the cars 1A and 1B run in the same direction within the express zone Z2.

In this case, a normal elevator would simply run on the straight route R1 in the same state, but in a self-propelled elevator system that can freely travel in the vertical and horizontal directions, after passing the express zone Z2, The travel pattern will be determined by taking the delay time into consideration.

In other words, if the destination floor of car 1A that entered express zone Z2 first is before the destination floor of car 1B that entered later, car 1B
If the car does not overtake the preceding car 1A in the express zone Z2, it will have to stop together with the car 1A in the general zone Z1 on the upper floor after leaving the express zone Z2. Therefore, in such a case, by controlling the operation so that the leading car 1A runs on the escape route R2 and the following car 1B runs on the straight ahead route R1, it is possible to overtake between this branch zone Z3. is possible. In this case, the speed of the preceding car 1A is high, and the car 1B is separated from the car 1A between the branching zone Z3.
If it is determined that it is not possible to overtake, the preceding car 1A
The car 1B is controlled to reduce its speed so that the car 1B can pass through the upper branch position 11 first.

In this way, when multiple cars are traveling in the same direction or in opposite directions in an express zone, the direction of travel, destination floor, speed, etc. of each car are used as judgment conditions to prevent a rear-end collision or If there is a risk of a collision, operation control is performed so that one of the cars is driven along an evacuation route.Furthermore, if there is still a risk of inconvenience, control is applied to reduce the travel speed and reduce the number of cars. This will smooth out traffic flow in express zones and achieve more efficient overall operation control.

It should be noted that the present invention is not limited to the above embodiment, and in the above embodiment, one express zone Z
Although one straight path R1 and one evacuation path R2 are provided in each express zone Z2, a plurality of these branch zones Z3 may be provided in one express zone Z2. This is especially important since the express zone length follows as the building height increases.
This is necessary because if each express zone is longer than 100 meters, the travel time will exceed one minute even at high speeds, and the frequency of cars passing each other and passing each other will increase.

Furthermore, by providing a plurality of express hoistways instead of one, it becomes possible to realize even more efficient traffic flow.

Furthermore, the evacuation path does not necessarily have to take the form of entering diagonally from the travel path as shown in FIG. 1, but may have the form of moving in the horizontal direction from the branching position and then proceeding in the vertical direction, if necessary. You can also use it as And in this case,
It is necessary to temporarily stop the car at the branch position, but in controlling the operation, it is necessary to calculate the travel time of each car including the stop time in the flowchart shown in FIG. 4.

[0070]

[Effects of the Invention] As described above, according to the present invention, there is a general zone in which movement is possible in a dedicated running path in all directions, and an express zone that connects an upper service floor and a lower service floor belonging to this general zone. A straight path, which is the shortest route, and a detour route are installed in parallel in the express zone, and the travel path switching means switches the travel path of each car traveling in the express zone between the straight path and the detour route. The speed control means performs variable control of the traveling speed of each car, and further,
The group management control means compares the traveling direction, speed, and destination floor of multiple cars traveling in the express zone, identifies the car that should be prioritized, and determines the speed required to avoid a rear-end collision or collision. Since the control system is configured to give each car a speed command and a command to select whether to travel on a straight path or an evacuation path, in an express zone where multiple cars are traveling at high speeds, they are unable to interact with each other. Traffic flow can be controlled to avoid collisions, and as a result, many cars can be run at high speed with fewer hoistways, reducing the space required for elevator installation. can.

Further, according to the present invention, the vertical thrust of each car is used to enable traveling on the retreat route at the same speed as traveling on the straight route, and the group management control means adjusts the difference in traveling time between the straight route and the retreat route. By controlling the operation of each car, traffic flow can be controlled without reducing the speed of each of the plurality of cars, and the operation efficiency of the elevator can be improved.

Further, according to the present invention, the group management control means determines the priority of which of the plurality of cars traveling in the express zone should be made to travel on the straight path between the straight path and the evacuation path. By making the setting based on the time difference in reaching the branch position, traffic flow control can be performed without slowing down the speeds of a plurality of cars, and the operating efficiency of the elevator can be improved.

Further, according to the present invention, when the traveling route of each car in the express zone has already been set by the traveling route switching means, the group management control means prevents a rear-end collision between a plurality of cars. Or, if a collision is predicted to occur, calculate a speed at which each car can pass or overtake each other in the branching zone between the straight path and the evacuation path, and issue a command to the speed control means, By controlling the speed of each car based on this speed command, it is possible to control the traffic flow of multiple cars in the same direction and in mutual directions within the same hoistway.
Efficient operation control can be performed.

Further, according to the present invention, the evacuation path in the express zone is configured by a combination of a horizontal travel path and a vertical travel path connected to the straight path.
Avoid rear-end collisions and collisions by temporarily retracting a specific car to the lateral travel path of this evacuation route until a car coming from behind at a faster speed passes, or a car coming from the opposite side passes each other. This allows for smoother flow.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention.

FIG. 2 is a block diagram of the elevator control circuit of the above embodiment.

FIG. 3 is a block diagram showing the circuit configuration of a car control device and a group management control device in the elevator control circuit of the above embodiment.

FIG. 4 is a flowchart showing the elevator operation control procedure of the above embodiment.

FIG. 5 is an explanatory diagram showing the elevator operation operation of the above embodiment.

FIG. 6 is an overall configuration diagram of the proposed self-propelled elevator system.

FIG. 7 is an explanatory diagram showing the configuration of a hoistway of the proposed self-propelled elevator system.

[Explanation of symbols]

1, 1A, 1B...car 10...Lower branch position 11...Upper branch position 12…Section coil 13...Unit control device 14...Section selection switch 15...Group management control device 16...Operation control section 17...Linear motor control section 18... Hall call control unit 19...Operation Management Department Z1…General zone Z2…Express zone Z3...branch zone R1...straight path R2...Evacuation route

Claims (5)

[Claims] Claim 1: A self-propelled elevator system that can move freely in the vertical and horizontal directions within a dedicated running path within a building, comprising a general zone that can move vertically and horizontally in the dedicated running path, and an upper service floor and a lower service floor that belong to the general zone. The express zone is separated from the service floor, and the express zone is provided with a shortest straight path and a detour evacuation path, and the travel path of each car traveling in the express zone is set as described above. A travel path switching means for switching between a straight route and an evacuation route, a speed control means for variable control of the traveling speed of each car, and the traveling direction, speed, and purpose of a plurality of cars traveling in the express zone. Identify which car should be given priority by comparing the
and a group management control means for determining the speed necessary to avoid a rear-end collision or a collision, and giving each car a speed command and a command as to whether to travel on the straight path or the evacuation path. type elevator system. 2. The self-propelled elevator system according to claim 1, wherein the vertical thrust of each car is used to enable traveling on the escape route at the same speed as traveling on the straight route, and the group management control means , a self-propelled elevator system characterized by controlling the operation of each car based on the travel time difference between the straight path and the evacuation path. 3. The self-propelled elevator system according to claim 1, wherein the group management control means determines which car among the plurality of cars traveling in the express zone is made to travel on the straight path. The self-propelled elevator system is characterized in that the priorities of the straight path and the evacuation path are set based on a time difference in reaching a branch position between the straight path and the evacuation path. 4. The self-propelled elevator system according to claim 1, wherein the group management control means has already set a travel route for each car in the express zone by the travel route switching means. If a rear-end collision or collision is predicted to occur between multiple cars, the speed must be set so that each car can pass or overtake each other within the branching zone between the straight path and the evacuation path. A self-propelled elevator system characterized in that it calculates and issues a command to the speed control means. 5. The self-propelled elevator system according to claim 1, wherein the evacuation path in the express zone is formed by a combination of a horizontal path and a vertical path connected to the straight path. A self-propelled elevator system characterized by comprising: