WO2021140556A1 - Elevator and elevator control method - Google Patents

Abstract

This elevator comprises: a guide rail; an active roller guide; a door motor; and a control unit. The active roller guide guides an elevator car along the guide rail and moves the elevator car in a horizontal direction. The control unit controls the door motor and the active roller guide. The control unit operates a car-side door to open/close in a state where the guide roller of the active roller guide has been moved a certain amount, and measures a torque value applied to the door motor at the time of the opening/closing operation.

Description

Elevator and elevator control method

The present invention relates to an elevator and an elevator control method.

The elevator has entrances and exits on each floor of the building structure so that people and things can get on and off. Similarly, the car in which people and things are placed is also provided with openings for people and things to enter and exit. Doors that can be opened and closed are provided at the entrances and openings of the car. Further, the building side door provided at the doorway and the car side door provided in the car are provided with an engaging portion that engages when opening and closing. Then, when the engaging portion engages, the building side door and the car side door open and close in conjunction with each other.

As a technique related to the engaging portion between the car side door and the building side door, for example, there is one described in Patent Document 1. In Patent Document 1, from the time when the fully closed state of the car side door is detected by the door fully closed state detecting means, the torque command calculation unit generated when the engaging devices of both doors come into contact with each other due to the opening operation of the car side door. Describes a technique for storing the movement distance calculated by the movement distance calculation unit as an engagement gap amount in a memory during the period for detecting an increase in the torque command value of the door.

Japanese Unexamined Patent Publication No. 2010-202335

In addition, the positional relationship between the car side door and the building side door changed depending on the horizontal position of the car when it landed. Then, when the positional relationship of the engaging portion changes, the torque applied to the door motor that opens and closes the car side door also changes. However, in the technique described in Patent Document 1, it has not been possible to confirm the fluctuation of the torque applied to the door motor with respect to the change in the engaging position of the engaging portion.

The purpose of this object is to provide an elevator and an elevator control method capable of confirming fluctuations in the torque of the door motor with respect to changes in the engaging position of the engaging portion in consideration of the above problems.

In order to solve the above problems and achieve the purpose, the elevator has a car-side engaging part provided on the car-side door of the car and a building-side engaging part provided on the building-side door on the floor where the car stops. This is an elevator in which the parts are engaged and the door on the car side and the door on the building side are interlocked with each other to open and close.
The elevator also includes a guide rail, an active roller guide, a door motor, and a control unit. The guide rail is erected along the direction in which the car moves up and down. The active roller guide guides the car along the guide rails and moves the car horizontally. The door motor opens and closes the car side door. The control unit controls the door motor and the active roller guide. Further, the control unit opens and closes the car side door with the guide roller of the active roller guide moved by a certain amount, and measures the torque value applied to the door motor during the opening and closing operation.

The elevator control method includes the steps shown in (1) and (3) below.
(1) A process of moving the guide roller of the active roller guide that moves the car in the horizontal direction by a certain amount when the car lands on the floor.
(2) The process of opening and closing the car side door.
(3) A process of measuring the torque value applied to the door motor that drives the car side door during the opening / closing operation.

According to the elevator and the elevator control method having the above configuration, it is possible to confirm the fluctuation of the torque of the door motor with respect to the change of the engaging position of the engaging portion.

It is a schematic block diagram which shows the elevator which concerns on the Example of Embodiment. It is a schematic block diagram which shows the car of the elevator which concerns on the Example of Embodiment. It is a top view which shows the car of the elevator which concerns on the Example of Embodiment. It is a schematic block diagram which shows the active roller guide of the elevator which concerns on Example of Embodiment. It is a perspective view which shows the active roller guide of the elevator which concerns on embodiment. It is a block diagram which shows the structure of the control system of the elevator which concerns on the Example of Embodiment. It is a flowchart which shows the operation example of the maintenance operation mode in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the maintenance operation mode in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the maintenance operation mode in the elevator which concerns on embodiment. It is explanatory drawing which shows the operation example of the maintenance operation mode in the elevator which concerns on embodiment. It is a flowchart which shows the operation example which concerns on the modification of the maintenance operation mode in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (maintenance operation mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (maintenance operation mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (maintenance operation mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (maintenance operation mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (maintenance operation mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (automatic operation diagnosis mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (automatic operation diagnosis mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (automatic operation diagnosis mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (automatic operation diagnosis mode) in the elevator which concerns on embodiment. It is a flowchart which shows the operation example of the car position search operation (automatic operation diagnosis mode) in the elevator which concerns on embodiment.

Hereinafter, examples of embodiments of the elevator and the elevator control method will be described with reference to FIGS. 1 to 22. The common members in each figure are designated by the same reference numerals.

1. 1. Embodiment 1-1. Elevator Configuration First, the elevator configuration according to the first embodiment (hereinafter referred to as “this example”) will be described with reference to FIGS. 1 and 3.
FIG. 1 is a schematic configuration diagram showing a configuration example of the elevator of this example, and FIG. 2 is a schematic configuration diagram showing a car of the elevator of this example. FIG. 3 is a plan view showing the car.

As shown in FIG. 1, the elevator 1 includes a car 2 for ascending and descending in a hoistway 200 provided in a building structure, and a guide rail 3 for movably supporting the car 2. The guide rails 3 are arranged on both sides in the width direction orthogonal to the vertical direction in which the car 2 moves up and down, and are erected in the hoistway 200 along the vertical direction of the car 2.

Further, the elevator 1 includes a rope 130, a balance weight 140, a hoisting machine 100, and an elevator control panel 190. A machine room 160 is provided at the top of the hoistway 200.

The hoisting machine 100 and the elevator control panel 190 are arranged in the machine room 160, and the car 2 is raised and lowered by winding the rope 130. Further, in the vicinity of the hoisting machine 100, a warp wheel 150 on which the rope 130 is mounted is provided.

The car 2 is connected to the balance weight 140 via the rope 130 and moves up and down in the hoistway 200. Further, the boarding / alighting area 201 where the car 2 on each floor of the building structure stops is provided with an entrance / exit 202 for people and objects to enter and exit the car 2.

The door 203 on the building side is provided at the doorway 202. The door 203 on the building side is arranged so that the doorway 202 can be opened and closed. A building-side engaging portion 204 is provided on one surface of the building-side door 203 on the hoistway 200 side. The building-side engaging portion 204 projects from one surface of the building-side door 203 toward the hoistway 200.

The car 2 has a car room 10 for people and luggage to enter and exit, a car side door 11, and an active roller guide 12. Further, the car 2 has a car side control unit 15 that controls the car side door 11 and the active roller guide 12.

The car room 10 is provided with an opening 10a, and the car side door 11 is installed in the opening 10a so as to be openable and closable. The car side door 11 is opened and closed by a door motor 71 (see FIG. 6) provided in the car 2.

A car-side engaging portion 13 is provided on one surface of the car-side door 11 on the hoistway 200 side. The car-side engaging portion 13 engages with the building-side engaging portion 204 provided on the building-side door 203 when the car 2 stops on an arbitrary floor. Then, when the building-side engaging portion 204 and the car-side engaging portion 13 engage with each other, the building-side door 203 and the car-side door 11 move to open and close integrally.

The active roller guide 12 is arranged at the upper part and the lower part of the car chamber 10. Further, the active roller guides 12 are arranged on both sides in the width direction, which is the opening / closing direction of the car side door 11 in the car chamber 10. The active roller guide 12 faces the guide rail 3.

Further, the active roller guide 12 guides the car 2 along the guide rail 3. Further, the active roller guide 12 displaces the car 2 in the horizontal direction by moving the guide rollers 21A, 21B, and 21C described later. The active roller guide 12 has a role as a vibration damping device that suppresses vibration generated in the car 2.

Here, the direction in which the car-side door 11 and the building-side door 203 face each other is defined as the first direction X, and the direction orthogonal to the first direction X and parallel to the opening / closing direction of the car-side door 11 is the second direction. The direction is Y. The first direction X and the second direction Y are orthogonal to the elevating direction of the car 2 and parallel to the horizontal direction.

1-2. Configuration of Active Roller Guide Next, the configuration of the active roller guide 12 will be described with reference to FIGS. 4 and 5.
FIG. 4 is a schematic configuration diagram showing the active roller guide 12, and FIG. 5 is a perspective view showing the active roller guide 12.

As shown in FIGS. 4 and 5, the active roller guide 12 has a first guide roller 21A, a second guide roller 21B, and a third guide roller 21C. The first guide roller 21A and the second guide roller 21B are arranged with the guide rail 3 sandwiched between them. The third guide roller 21C is arranged between the first guide roller 21A and the second guide roller 21B, and is arranged at a position facing the guide rail 3. The guide rollers 21A, 21B, and 21C come into contact with the guide rail 3.

Further, the active roller guide 12 includes a first drive mechanism 22 for moving the first guide roller 21A and the second guide roller 21B, a second drive mechanism 24 for moving the third guide roller 21C, and a support base 25. Have.

Further, the active roller guide 12 can rotate the first lever 23A that rotatably supports the first guide roller 21A, the second lever 23B that rotatably supports the second guide roller 21B, and the third guide roller 21C. It has a third lever (not shown) that supports it. The first guide roller 21A is rotatably supported at the intermediate portion of the first lever 23A in the longitudinal direction via the shaft portion 40, and the second guide roller 21B is located at the intermediate portion of the second lever 23B in the longitudinal direction. It is rotatably supported via the shaft portion 40. Similarly, the third guide roller 21C is rotatably supported at an intermediate portion in the longitudinal direction of the third lever via the shaft portion 40.

The support base 25 is fixed to a car frame (not shown) that supports the car room 10 in the car 2. It has a connecting portion 26, a first support plate 27, and a second support plate 28. The first support plate 27 and the second support plate 28 face each other in the vertical direction. The first support plate 27 and the second support plate 28 are connected by a connecting portion 26. A first drive mechanism 22 and a second drive mechanism 24 are arranged on the first support plate 27.

Further, the second support plate 28 is provided with a first support portion 29A, a second support portion 29B, and a third support portion (not shown). One end of the first lever 23A in the longitudinal direction is swingably attached to the first support portion 29A via a swing shaft 41. One end of the second lever 23B in the longitudinal direction is swingably attached to the second support portion 29B via the swing shaft 41. Similarly, the third lever is swingably attached to the third support portion. Further, the first lever 23A, the second lever 23B, and the third lever are arranged in the longitudinal direction substantially parallel to the vertical direction, respectively.

A rod 36 is inserted into the other end of the first lever 23A and the second lever 23B in the longitudinal direction. The axial direction of the rod 36 extends substantially parallel to the direction in which the first guide roller 21A and the second guide roller 21B face each other. An elastic member 37 and a nut 38 holding the elastic member 37 are attached to both ends of the rod 36 in the axial direction, respectively.

As the elastic member 37, the compression coil spring is applied to the active roller guide 12 of this example. The elastic member 37 is interposed between the nut 38 and the first lever 23A or the second lever 23B in a compressed state. The elastic member 37 is not limited to the compression coil spring, and other members having various elasticity such as rubber and leaf springs may be applied.

Further, a movable member 33 of the first drive mechanism 22, which will be described later, is fixed to the intermediate portion in the axial direction of the rod 36. The first drive mechanism 22 includes a roller drive motor 31, a ball screw 32, a movable member 33, and a pedestal 34.

The roller drive motor 31 and the pedestal 34 are arranged on the first support plate 27. The roller drive motor 31 is rotationally driven based on a drive signal output from the active control device 50, which will be described later. A ball screw 32 is connected to the drive shaft of the roller drive motor 31. The ball screw 32 is rotatably supported by the pedestal 34.

A movable member 33 is screwed into the ball screw 32. Further, the movable member 33 is fixed to the rod 36, and its rotation is restricted around the axis of the ball screw 32. Then, when the ball screw 32 rotates, the movable member 33 screwed into the ball screw 32 moves linearly along the axial direction of the ball screw 32. As the movable member 33 moves linearly, the rod 36 to which the movable member 33 is fixed moves by expanding and contracting the elastic members 37 attached to both ends.

The urging force from the elastic member 37 applied to the other ends of the first lever 23A and the second lever 23B changes, and the first lever 23A and the second lever 23B swing around the swing shaft 41. As a result, the first guide roller 21A and the second guide roller 21B attached to the first lever 23A and the second lever 23B move, and the pressing force on the guide rail 3 in the first guide roller 21A and the second guide roller 21B. Changes.

Further, the second drive mechanism 24, like the first drive mechanism 22, has a roller drive motor 31, a ball screw 32 (not shown), a movable member 33, and a pedestal 34. The movable member 33 is provided with a rod (not shown). An elastic member and a nut are attached to this rod, and the other end of the third lever in the longitudinal direction is connected to the rod. Since other configurations are the same as those of the first drive mechanism 22, the description thereof will be omitted.

The drive mechanisms 22 and 24 for moving the guide rollers 21A, 21B and 21C are not limited to the above-described configurations, and for example, a mechanism using a plurality of gears, a cam and other various moving mechanisms can be applied. It is a thing. Further, an example in which a swing shaft 41 is provided at one end of the levers 23A, 23B, 23C to swing the levers 23A, 23B, 23BC has been described, but the present invention is not limited to this. For example, one end of the levers 23A, 23B, 23C may be movably supported in parallel with the rod 36 and the ball screw 32, and the levers 23A, 23B, 23C may be linearly moved.

1-3. Example of Control System Configuration Next, the configuration of the control system of the elevator 1 having the above-described configuration will be described with reference to FIG.
FIG. 6 is a block diagram showing the configuration of the control system.

As shown in FIG. 6, the elevator 1 has an elevator control panel 190 showing an example of a control unit and a car side control unit 15. The elevator control panel 190 includes a power supply 191, a landing position information acquisition unit 192, a stop position information acquisition unit 193, a maintenance mode input signal output unit 194, an active operation permission signal output unit 195, and a storage unit 196. have. Further, the elevator control panel 190 has a door motor torque value information acquisition unit 197 and a door open / close command signal output unit 198.

The power supply 191 supplies electric power to the entire elevator 1. The landing position information acquisition unit 192 acquires information on the floor on which the car 2 stops (floor data) from the storage unit 196. Further, the landing position information acquisition unit 192 transmits the floor floor data to the active control device 50 of the car side control unit 15, which will be described later.

The stop position information acquisition unit 193 acquires the stop positions of the guide rollers 21A, 21B, and 21C on the floor where the car 2 stops from the active control device 50. Further, the stop position information acquisition unit 193 stores the acquired stop positions of the guide rollers 21A, 21B, and 21C in the storage unit 196.

The maintenance mode input signal output unit 194 outputs the maintenance mode input signal to the active control device 50 when performing the maintenance operation mode. Further, the active operation permission signal output unit 195 outputs an operation permission signal to the active control device 50 when the operation of the active roller guide 12 is permitted.

The door motor torque value information acquisition unit 197 acquires the torque value information of the door motor 71 applied when the car side door 11 is opened and closed from the door control device 60. Then, the door motor torque value information acquisition unit 197 stores the acquired torque value information in the storage unit 196. The door open / close command signal output unit 198 outputs a door open / close command signal to the door control device 60 when the car side door 11 and the building side door 203 are opened / closed.

The car side control unit 15 has an active control device 50 that controls the drive of the active roller guide 12, and a door control device 60 that controls the opening / closing operation of the car side door 11. The active control device 50 showing an example of the control unit includes a controller 51, an input / output circuit 55, and an A / D converter 56. Further, the controller 51 has a calculation unit 52, a storage unit 53, and a motor current detector 54.

The A / D converter 56 A / D converts the detection signal of the rotary encoder (motor RE) 39 provided in the roller drive motor 31 and outputs it to the controller 51. Further, the A / D converter 56 A / D-converts the detection signal of the acceleration sensor 81 provided in the car 2 and outputs it to the controller 51.

The acceleration sensor 81 detects the vibration of the car chamber 10 when the car 2 moves up and down. Then, the acceleration sensor 81 outputs the detection signal to the active control device 50. When the car 2 is moved up and down, the active control device 50 drives the roller drive motor 31 based on the detection signal from the acceleration sensor 81. As a result, the guide rollers 21A, 21B, and 21C of the active roller guide 12 move, and a vibration damping operation that suppresses vibration generated in the car 2 is performed.

The input / output circuit 55 receives the output signals from the maintenance mode input signal output unit 194 and the active operation permission signal output unit 195 of the elevator control panel 190, and outputs the received output signals to the controller 51.

The calculation unit 52 calculates the drive signal of the roller drive motor 31 according to the detection signal from the acceleration sensor 81 and the output signals from the maintenance mode input signal output unit 194 and the active operation permission signal output unit 195. Then, the controller 51 drives the roller drive motor 31 based on the calculated drive signal.

Further, the motor current detector 54 detects the current value of the roller driving motor 31 at the time of driving. The motor current detector 54 outputs the detected current value to the calculation unit 52. Then, the calculation unit 52 calculates the torque applied to the roller drive motor 31 based on the current value.

The storage unit 53 stores the stop position information of the guide rollers 21A, 21B, and 21C for each floor. The calculation unit 52 controls the drive of the roller drive motor 31 so that the guide rollers 21A, 21B, and 21C stop at the stop positions stored in the storage unit 53 when the car 2 stops on an arbitrary floor. Further, the calculation unit 52 updates the stop position information stored in the storage unit 53 in the automatic operation diagnosis mode described later.

The door control device 60 showing an example of the control unit includes a controller 61, an input / output circuit 65, and an A / D converter 66. The controller 61 includes a calculation unit 62 and a motor current detector 64.

The A / D converter 66 converts the detection signal of the rotary encoder (motor RE) 79 provided in the door motor 71 into A / D and outputs it to the controller 61. The calculation unit 62 of the controller 61 received the motor R.M. Based on the detection signal from E79, the door open end and the door closed end of the car side door 11 are detected.

The door open end and the door closed end are detected by the motor R. It is not limited to the one using the detection signal of E79. For example, a mechanical detection switch is provided at the door opening end and the door closing end of the car side door 11, and the detection signal from the detection switch is used to detect the door opening end and the door closing end of the car side door 11. May be good.

The input / output circuit 65 receives the door open / close command signal from the door open / close command signal output unit 198 of the elevator control panel 190. Then, the input / output circuit 65 outputs the received door open / close command signal to the controller 61.

The calculation unit 62 calculates a drive signal for driving the door motor 71 based on the door open / close command signal. Then, the calculation unit 62 drives the door motor 71 based on the calculated drive signal, and opens and closes the car side door 11.

Further, the motor current detector 64 detects the current value of the door motor 71 during driving. The motor current detector 64 outputs the detected current value to the calculation unit 62. Then, the calculation unit 62 calculates the torque applied to the door motor 71 based on the current value. Further, the controller 61 outputs the calculated torque value information of the door motor 71 to the door motor torque value information acquisition unit 197 of the elevator control panel 190.

In this example, an example of detecting the torque value of the door motor 71 from the current value has been described, but the present invention is not limited to this, and the torque detection unit for detecting the torque value of the door motor 71 is provided to the door motor 71. It may be provided.

2. Operation Example Next, an operation example of the elevator 1 having the above-described configuration will be described with reference to FIGS. 7 to 22.
2-1. Operation example of maintenance operation mode First, an operation example of the maintenance operation mode will be described with reference to FIGS. 7 to 11. 7 to 9 are flowcharts showing an operation example of the maintenance operation mode, and FIG. 10 is an explanatory view showing an operation example of the maintenance operation mode.

The maintenance operation mode shown in FIGS. 7 to 11 is an operation example of diagnosing an overload abnormality of the door motor 71 of the car side door 11 when the active roller guide 12 is moved to the maximum, and the car 2 is arbitrary. It is done when you stop on the floor.

As shown in FIG. 7, first, the active control device 50 determines whether or not the operation permission signal (operation permission flag) of the active roller guide 12 is ON (step S11). In the process of step S11, if the operation permission signal is not output from the active operation permission signal output unit 195, the operation permission signal is turned off, and when the operation permission signal is output from the active operation permission signal output unit 195, the operation is performed. The permission signal is turned ON.

In the process of step S11, when the active control device 50 determines that the operation permission signal is OFF (No determination in step S11), the operation of the maintenance operation mode ends. On the other hand, in the process of step S11, when the active control device 50 determines that the operation permission signal is OFF (Yes determination in step S11), it is determined whether or not the current operation mode is the maintenance operation mode (yes determination in step S11). Step S12).

In the process of step S12, when the active control device 50 determines that the current operation mode is not the maintenance operation mode (No determination in step S12), the operation of the maintenance operation mode ends.

Further, when the maintenance mode input signal is output from the maintenance mode input signal output unit 194 to the active control device 50, the current operation mode becomes the maintenance operation mode. Then, in the process of step S12, when the active control device 50 determines that the maintenance operation mode is set (Yes determination in step S12), the roller drive motor 31 for moving the guide rollers 21A, 21B, 21C is driven (step S13). ). The roller drive motor 31 is driven by the controller 51 of the active control device 50.

Next, the motor current detector 54 of the active control device 50 detects the current value of the roller drive motor 31. The calculation unit 52 of the active control device 50 calculates the torque of the roller drive motor 31 from the current value. When the guide rollers 21A, 21B, and 21C of the active roller guide 12 move to the maximum, the torque of the roller drive motor 31 increases.

Then, the calculation unit 52 of the active control device 50 determines whether or not the torque of the roller drive motor 31 exceeds the threshold value (step S14). In the process of step S14, the controller 51 of the active control device 50 continues to drive the roller drive motor 31 until the torque exceeds the threshold value.

When the calculation unit 52 determines that the torque exceeds the threshold value in the process of step S14, the controller 51 stops driving the roller drive motor 31 (step S15). Then, when the active control device 50 moves the active roller guide 12 to the maximum and stops the roller driving motor 31, the stop information is output to the elevator control panel 190.

As a result, as shown in FIG. 10, the car 2 moves in the first direction X and / or the second direction Y, and is displaced from a predetermined position with respect to the building side door 203. As a result, the positional relationship between the car-side engaging portion 13 and the building-side engaging portion 204 changes, so that the distance between the car-side engaging portion 13 and the building-side engaging portion 204 changes.

Note that the car 2 may be moved only in the first direction X or the second direction Y. Further, by moving the active roller guide 12 to the maximum, it is possible to reproduce the state in which the car 2 is displaced to the maximum in the first direction X and the second direction Y with respect to the boarding / alighting area 201.

In this example, an example of detecting the movable limit of the active roller guide 12 from the torque of the roller drive motor 31 has been described, but the present invention is not limited to this. A mechanical detection switch may be provided on the drive mechanisms 22 and 24 of the active roller guide 12, and the movable limit of the active roller guide 12 may be detected by using the detection signal from the detection switch.

Next, as shown in FIG. 8, the door open / close command signal output unit 198 outputs a door open command to the door control device 60 (step S16). Upon receiving the door opening command, the controller 61 of the door control device 60 drives the door motor 71 to open the car side door 11. When the car side door 11 is opened and operated, the car side engaging portion 13 and the building side engaging portion 204 are engaged with each other in a state where the car 2 is displaced with respect to the building side door 203. Then, the car side door 11 and the building side door 203 both open.

Next, the motor current detector 64 of the door control device 60 detects the current value of the door motor 71 during the opening operation. The calculation unit 62 of the door control device 60 calculates the torque value of the door motor 71 from the current value. Then, the door control device 60 measures the torque value of the door motor 71 during the door opening operation (step S17).

Next, the controller 61 of the door control device 60 is the motor R.A. of the door motor 71. Based on the information from the E79 and the information from the detection switch, it is determined whether or not the car side door 11 has moved to the door opening end (step S18). The controller 61 of the door control device 60 continues the opening operation and the torque value measuring operation until the car side door 11 moves to the door opening end.

Further, in the process of step S18, when it is determined that the car side door 11 has moved to the door opening end (Yes determination in step S18), the door control device 60 outputs the door opening completion information to the elevator control panel 190. Then, the door open / close command signal output unit 198 outputs a door close command to the door control device 60 (step S19). Upon receiving the door closing command, the controller 61 of the door control device 60 drives the door motor 71 to close the car side door 11.

Next, the door control device 60 measures the torque value of the door motor 71 during the door closing operation based on the current value of the door motor 71 detected by the motor current detector 64 (step S20). The controller 61 of the door control device 60 determines whether or not the car-side door 11 has moved to the closed end of the door (step S21). The controller 61 of the door control device 60 continues the closing operation and the torque value measuring operation until the car side door 11 moves to the door closing end.

Further, in the process of step S21, when it is determined that the car side door 11 has moved to the door opening end (Yes determination in step S21), the door control device 60 outputs the door closing completion information to the elevator control panel 190. Next, as shown in FIG. 9, the calculation unit 62 of the door control device 60 determines whether or not the torque value of the door motor 71 during the door opening / closing operation is equal to or less than the threshold value (step S22). In this maintenance operation mode, it is determined whether or not an overload abnormality has occurred in the door motor 71 in the process of step S22.

In the process of step S22, when the calculation unit 62 determines that the torque value is equal to or less than the threshold value (Yes determination in step S22), the calculation unit 62 determines that the diagnosis result is OK and outputs the diagnosis result to the elevator control panel 190 (step S23). ). As a result, the operation of the maintenance operation mode ends.

On the other hand, in the process of step S22, when the calculation unit 62 determines that the torque value exceeds the threshold value (No determination in step S22), the calculation unit 62 determines that the diagnosis result is NG, and the elevator control panel 190 Is output to (step S24). As a result, the operation of the maintenance operation mode ends.

The elevator control panel 190 may perform the determination process in step S22. Further, the diagnosis result may be output not only to the elevator control panel 190 but also to an external monitoring center.

As shown in the process of step S24, when the diagnosis result is NG, the mounting positions of the car side engaging portion 13 and the building side engaging portion 204 are adjusted, and the active roller guide 12 is adjusted.

By performing the above-mentioned steps, whether or not an overload abnormality occurs in the door motor 71 when the car 2 is displaced to the maximum in the first direction X and the second direction Y with respect to the boarding / alighting area 201. Can be confirmed. That is, even when the car 2 is displaced to the maximum with respect to the boarding / alighting area 201, it is possible to confirm whether or not the car side door 11 and the building side door 203 normally open and close.

[Modification example]
In the operation example shown in FIG. 7, an example in which the active roller guide 12 automatically operates has been described, but the present invention is not limited to this, and the drive mechanisms 22 and 24 of the active roller guide 12 are operated by the hands of an operator. You may let me. FIG. 11 is a flowchart showing an operation example related to a modified example of the maintenance operation mode.

As shown in FIG. 11, first, the active control device 50 determines whether or not the operation permission signal (operation permission flag) of the active roller guide 12 is ON (step S31). When the active control device 50 determines that the operation permission signal is OFF in the process of step S31 (No determination in step S31), the operation of the maintenance operation mode ends.

On the other hand, in the process of step S31, when the active control device 50 determines that the operation permission signal is OFF (Yes determination in step S31), it is determined whether or not the current operation mode is the maintenance operation mode (yes determination in step S31). Step S32). In the process of step S32, when the active control device 50 determines that the current operation mode is not the maintenance operation mode (No determination in step S32), the operation of the maintenance operation mode ends.

In the process of step S32, when the active control device 50 determines that the maintenance operation mode is set (Yes determination in step S32), the brake (not shown) that brakes the roller drive motor 31 is released (step S33). Next, the worker manually rotates the roller drive motor 31 to move the guide rollers 21A, 21B, and 21C to the movable limit (step S34). In the process of step S34, for example, the ball screw 32 of the drive mechanisms 22 and 24 is manually rotated.

Since the subsequent processing is the same as the processing shown in FIGS. 8 and 9, the description thereof will be omitted. In this way, by moving the active roller guide 12 by the hands of the worker, the maintenance operation can be performed.

2-2. Car position search operation Next, the car position search operation will be described with reference to FIGS. 12 to 22.
12 to 22 are flowcharts showing the car position search operation. 13 to 17 show a maintenance operation mode, and FIGS. 18 to 22 show an automatic operation diagnosis mode. The maintenance operation mode is carried out with the car 2 stopped on an arbitrary floor, and the automatic operation diagnosis mode is carried out while the car 2 is normally operated.

The car position search operation shown in FIGS. 12 to 22 is an operation of searching for a car position that avoids the occurrence of an overload abnormality in the door motor 71 during normal operation of the car 2. This car position search operation is performed for each floor on which the car 2 stops.

As shown in FIG. 12, the elevator control panel 190 determines whether or not the car 2 has landed (step S41). When it is determined in the process of step S41 that the car 2 has not landed (No determination in step S41), the car 2 is moving up and down in the hoistway 200. Then, the active control device 50 drives the active roller guide 12 based on the detection signal from the acceleration sensor 81 provided in the car 2, and performs a vibration damping operation for suppressing the vibration generated in the car 2.

Further, when the car 2 approaches the destination floor, the active control device 50 drives the active roller guide 12 so that the target roller position is stored in the storage unit 53 when the destination floor is landed. The guide rollers 21A, 21B, and 21C are moved (step S42).

Then, in the process of step S41, when it is determined that the car 2 has landed (Yes determination in step S41), the active control device 50 has the operation permission signal (operation permission flag) of the active roller guide 12 OFF. Whether or not it is determined (step S43). When the car 2 lands on the floor and the operation of the active roller guide 12 is stopped, the operation permission signal is turned off.

In the process of step S43, when the active control device 50 determines that the operation permission signal of the active roller guide 12 is ON (No determination in step S43), the active control device 50 turns off the operation permission signal and performs the process of step S43 again. ..

In the process of step S43, when the active control device 50 determines that the operation permission signal is OFF (Yes determination in step S43), the active control device 50 determines whether or not the current operation mode is the maintenance operation mode (step S44). When it is determined in the process of step S44 that the mode is not the maintenance operation mode (No determination in step S44), the process of step S47 described later is performed.

Further, in the process of step S44, when it is determined that the maintenance operation mode is set (Yes determination in step S44), the active control device 50 is the floor of the floor on which the car 2 has landed from the landing position information acquisition unit 192. Acquire data (step S45). Next, the active control device 50 stores the positions of the guide rollers 21A, 21B, and 21C (hereinafter, simply referred to as roller positions) when the car 2 is landed in the storage unit 53 (step S46). Then, the process of step S49 shown in FIG. 13 is performed.

In the process of step S47, the active control device 50 determines whether or not the current operation mode is the automatic operation diagnosis mode. When it is determined in the process of step S47 that the mode is the automatic driving diagnosis mode (Yes determination in step S47), the active control device 50 turns on the measurement signal (measurement flag) (step S48). Then, the automatic driving diagnosis mode shown in FIGS. 18 to 22 is carried out. The automatic driving diagnosis mode will be described later.

Further, when it is determined in the process of step S47 that the mode is not the automatic operation diagnosis mode (No determination in step S47), the current operation mode becomes an operation mode different from the maintenance operation mode and the automatic operation diagnosis mode. Then, as shown in FIG. 17, the operation ends.

As shown in FIG. 13, when the process of step S46 is completed, the door open / close command signal output unit 198 outputs a door open command to the door control device 60 (step S49). Upon receiving the door opening command, the controller 61 of the door control device 60 drives the door motor 71 to open the car side door 11.

Next, the door control device 60 detects the torque value of the door motor 71 during the door opening operation based on the current value of the door motor 71 detected by the motor current detector 64 (step S50). The controller 61 of the door control device 60 determines whether or not the car side door 11 has moved to the door opening end (step S51). The controller 61 of the door control device 60 continues the opening operation and the torque value detecting operation until the car side door 11 moves to the door opening end.

Next, the controller 61 updates the maximum value of the torque value of the door motor 71 with respect to the current roller position, and outputs the torque value information to the door motor torque value information acquisition unit 197 (step S52). The door motor torque value information acquisition unit 197 stores the acquired torque value information in the storage unit 196 together with the corresponding roller position information.

Next, as shown in FIG. 14, the door open / close command signal output unit 198 outputs a door close command to the door control device 60 (step S53). Upon receiving the door closing command, the controller 61 of the door control device 60 drives the door motor 71 to close the car side door 11.

Next, the door control device 60 detects the torque value of the door motor 71 during the door closing operation based on the current value of the door motor 71 detected by the motor current detector 64 (step S54). The controller 61 of the door control device 60 determines whether or not the car side door 11 has moved to the closed end of the door (step S55). The controller 61 of the door control device 60 continues the closing operation and the torque value measuring operation until the car side door 11 moves to the door closing end.

Next, the controller 61 updates the maximum value of the torque value of the door motor 71 with respect to the current roller position, and outputs the torque value information to the door motor torque value information acquisition unit 197 (step S56). The door motor torque value information acquisition unit 197 stores the acquired torque value information in the storage unit 196 together with the corresponding roller position information.

Next, the active control device 50 determines whether or not the positive direction measurement signal (plus direction measurement flag) is ON (step S57). When it is determined in the process of step S57 that the signal during measurement in the positive direction is ON (Yes determination in step S57), the active control device 50 performs the process of step S63 described later.

On the other hand, when it is determined that the positive direction measuring signal is OFF (No determination in step S57), the active control device 50 determines whether or not the negative direction measuring signal (minus direction measuring flag) is ON. (Step S58). When it is determined in the process of step S58 that the signal during measurement in the negative direction is ON (Yes determination in step S58), the active control device 50 performs the process of step S68 described later.

Here, the plus direction is a direction parallel to the first direction X and the second direction Y, and the minus direction is a direction opposite to the plus direction in the first direction X and the second direction Y. Is.

On the contrary. When it is determined that the signal during measurement in the negative direction is OFF (Yes determination in step S58), the process of step S59 shown in FIG. 15 is performed. In the process of step S59, the active operation permission signal output unit 195 of the elevator control panel 190 outputs the operation permission signal to the active control device 50. Then, when the operation permission signal is output from the active operation permission signal output unit 195, the active control device 50 turns on the operation permission signal (flag).

Next, the active control device 50 turns on the positive direction measurement signal (plus direction measurement flag) (step S60). Then, the active control device 50 controls the drive of the roller drive motor 31, and is located in the positive direction along the first direction X and / or the second direction Y from the roller position at the time of landing of the car 2. It is moved by a fixed amount (step S61). In this example, it is moved by 0.5 mm as a predetermined amount. Further, the active control device 50 outputs the roller position information after movement to the stop position information acquisition unit 193.

In the process of step S61, the first guide roller 21A and the second guide roller 21B are moved when moving in the first direction X, and the third guide roller 21C is moved when moving in the second direction Y. Let me.

Next, the elevator control panel 190 determines whether or not the roller position after being moved by the process of step S61 is the roller position for which the torque value at the time of opening / closing operation of the door motor 71 has been measured (step S62). .. In the process of step S62, when it is determined that the roller position has not been measured yet (No determination in step S62), the process returns to the process of step S49.

Then, the process of step S49 is performed to the process of step S56, the car side door 11 is opened and closed again, and the torque value of the door motor 71 during the opening and closing operation is measured. Further, in the processes of steps S52 and S56, the maximum value of the torque value of the door motor 71 with respect to the roller position after movement is updated, and the torque value information is output to the door motor torque value information acquisition unit 197. The door motor torque value information acquisition unit 197 stores the acquired torque value information in the storage unit 196 together with the corresponding roller position information.

Further, when the process of step S62 returns to the process of step S49, the positive direction measurement signal (plus direction measurement flag) is ON, so the process of step S57 is a Yes determination. Therefore, the process proceeds to step S63. In the process of step S63, the active control device 50 determines whether or not the position moved by a predetermined amount (0.5 mm) in the positive direction from the current roller position is within the car movable range. That is, it is determined whether or not it is within the design threshold value of the active roller guide 12.

Then, in the process of step S63, when it is determined that the car is within the movable range of the car (Yes determination in step S63), the process returns to the process of step S60. Further, in the process of step S61, the roller position is moved by a predetermined amount in the positive direction. Then, the torque value of the door motor 71 at the roller position after movement is measured. As a result, the torque value information of the door motor 71 in which the car 2 is moved in the plus direction by a predetermined amount to the movable range is stored in the storage unit 196.

Further, in the process of step S62, when it is determined that the current roller position is the measured roller position (Yes determination in step S62), the active control device 50 turns off the signal during measurement in the positive direction (step S64). ). Further, in the process of step S63, when it is determined that the car is out of the movable range of the car (No determination in step S63), the process of step S64 is performed.

When the process of step S64 is completed, as shown in FIG. 16, the active control device 50 turns on the negative direction measuring signal (plus direction measuring flag) (step S65). Then, the active control device 50 controls the drive of the roller drive motor 31, and is located in the minus direction along the first direction X and / or the second direction Y from the roller position at the time of landing of the car 2. It is moved quantitatively (step S66). In this example, it is moved by 0.5 mm as a predetermined amount. Further, the active control device 50 outputs the roller position information after movement to the stop position information acquisition unit 193.

Next, the elevator control panel 190 determines whether or not the roller position after being moved by the process of step S61 is the roller position for which the torque value at the time of opening / closing operation of the door motor 71 has been measured (step S67). .. In the process of step S62, when it is determined that the roller position has not been measured yet (No determination in step S67), the process returns to the process of step S49.

Then, the process of step S49 is performed to the process of step S56, the car side door 11 is opened and closed again, and the torque value of the door motor 71 during the opening and closing operation is measured. Further, in the processes of steps S52 and S56, the maximum value of the torque value of the door motor 71 with respect to the roller position after movement is updated, and the torque value information is output to the door motor torque value information acquisition unit 197.

Further, when the process of step S62 returns to the process of step S49, the positive direction measurement signal (plus direction measurement flag) is OFF, so the process of step S57 is a No determination. Since the negative direction measurement signal (minus direction measurement flag) is ON, the process of step S58 is a Yes determination.

Therefore, the process proceeds to step S68. In the process of step S68, the active control device 50 determines whether or not the position moved by a predetermined amount (0.5 mm) in the negative direction from the current roller position is within the car movable range. That is, it is determined whether or not it is within the design threshold value of the active roller guide 12.

Then, in the process of step S68, when it is determined that the car is within the movable range of the car (Yes determination in step S68), the process returns to the process of step S65. Further, in the process of step S66, the roller position is moved by a predetermined amount in the minus direction. Then, the torque value of the door motor 71 at the roller position after movement is measured. As a result, the torque value information of the door motor 71 in which the car 2 is moved in the minus direction by a predetermined amount to the movable range is stored in the storage unit 196.

Further, in the process of step S67, when it is determined that the current roller position is the measured roller position (Yes determination in step S67), the active control device 50 turns off the signal during measurement in the positive direction (step S69). ). Further, in the process of step S68, when it is determined that the car is out of the movable range of the car (No determination in step S68), the process of step S69 is performed.

When the process of step S69 is completed, the active control device 50 turns off the active operation permission signal (step S70).

As shown in FIG. 17, the elevator control panel 190 next searches for the minimum torque value in the positive direction measurement among the torque value information stored in the storage unit 196. Then, the elevator control panel 190 searches for the roller position information that has the minimum torque value (step S71). Next, the elevator control panel 190 searches for the minimum torque value in the negative direction measurement among the torque value information stored in the storage unit 196. Then, the elevator control panel 190 searches for the roller position information that has the minimum torque value (step S72).

Next, the elevator control panel 190 calculates the average value of the roller positions searched in the processes of steps S71 and S72 (step S73). That is, in the process of step S73, the center position of the roller position searched in the processes of step S71 and step S71 is calculated.

Next, the elevator control panel 190 determines whether or not the torque value of the roller position this time is smaller than the torque value of the roller position set in the previous maintenance operation mode (step S74). The torque value at the roller position this time is the smallest torque value among the torque values measured in the maintenance operation mode this time. That is, the smaller torque value among the torque values used in step S71 and step S72 is set.

When it is determined in the process of step S74 that the torque value of the roller position this time is smaller (Yes determination in step S74), the active control device 50 stores the roller position measured this time in the storage unit 53 (step S75). .. Here, the roller position measured this time is the roller position calculated in the process of step S73.

Further, in the process of step S74, when it is determined that the torque value of the previous roller position is smaller (No determination in step S74), the active control device 50 stores the previously measured roller position in the storage unit 53 (step). S76).

Then, the active control device 50 sets the roller position when the car 2 lands on the current floor to the roller position stored in the storage unit 53 (step S77). As a result, the roller position, that is, the car position search operation in the maintenance operation mode during normal operation is completed. As a result, the roller position where the torque value of the door motor 71 is minimized can be updated, and it is possible to prevent an overload abnormality from occurring in the door motor 71.

Further, in the automatic driving diagnosis mode, as shown in FIG. 18, the active control device 50 determines whether or not the negative direction measurement signal (minus direction measurement flag) is ON (step S81). In the process of step S81, when it is determined that the signal during measurement in the negative direction is ON (Yes determination in step S81), the process of step S83 described later is performed.

Further, in the process of step S81, when it is determined that the negative direction measuring signal is OFF (No determination in step S81), the active control device 50 turns on the positive direction measuring signal (step S82). Then, the active control device 50 determines whether or not the measurement signal (measurement flag) is ON (step S83).

When it is determined in the process of step S83 that the measurement signal is ON (Yes determination in step S83), the active control device 50 receives the floor data of the floor on which the car 2 has landed from the landing position information acquisition unit 192. (Step S84). Next, the active control device 50 stores the roller position of the car 2 at the time of landing in the storage unit 53 (step S85).

Next, as shown in FIG. 19, the door open / close command signal output unit 198 outputs a door open command to the door control device 60 (step S86). Upon receiving the door opening command, the controller 61 of the door control device 60 drives the door motor 71 to open the car side door 11.

Next, the door control device 60 detects the torque value of the door motor 71 during the door opening operation based on the current value of the door motor 71 detected by the motor current detector 64 (step S87). The controller 61 of the door control device 60 determines whether or not the car side door 11 has moved to the door opening end (step S88). The controller 61 of the door control device 60 continues the opening operation and the torque value detecting operation until the car side door 11 moves to the door opening end.

Next, the controller 61 updates the maximum value of the torque value of the door motor 71 with respect to the current roller position, and outputs the torque value information to the door motor torque value information acquisition unit 197 (step S89). The door motor torque value information acquisition unit 197 stores the acquired torque value information in the storage unit 196 together with the corresponding roller position information.

Further, the door open / close command signal output unit 198 outputs a door close command to the door control device 60 (step S90). Upon receiving the door closing command, the controller 61 of the door control device 60 drives the door motor 71 to close the car side door 11.

Next, the door control device 60 detects the torque value of the door motor 71 during the door closing operation based on the current value of the door motor 71 detected by the motor current detector 64 (step S91). The controller 61 of the door control device 60 determines whether or not the car side door 11 has moved to the closed end of the door (step S92). The controller 61 of the door control device 60 continues the closing operation and the torque value measuring operation until the car side door 11 moves to the door closing end.

Next, the controller 61 updates the maximum value of the torque value of the door motor 71 with respect to the current roller position, and outputs the torque value information to the door motor torque value information acquisition unit 197 (step S93). The door motor torque value information acquisition unit 197 stores the acquired torque value information in the storage unit 196 together with the corresponding roller position information.

Next, as shown in FIG. 20, the active control device 50 determines whether or not the positive direction measurement signal (plus direction measurement flag) is ON (step S94). When it is determined in the process of step S94 that the signal during measurement in the positive direction is OFF (No determination in step S94), the active control device 50 performs the process of step S105 described later.

Further, in the process of step S94, when it is determined that the signal during measurement in the positive direction is ON (Yes determination in step S94), the process of step S95 is performed. In the process of step S95, the active control device 50 determines whether or not the position moved by a predetermined amount (0.5 mm) in the positive direction from the previous target roller position is within the car movable range. That is, it is determined whether or not it is within the design threshold value of the active roller guide 12. The previous target roller position is the roller position moved in the process of step S42.

Then, in the process of step S95, when it is determined that the car is within the movable range of the car (Yes determination in step S95), the elevator control panel 190 performs the process of step S96. In the process of step S96, it is determined whether or not the roller position after being moved by the process of step S95 is the roller position for which the torque value at the time of opening / closing operation of the door motor 71 has been measured.

In the process of step S96, when it is determined that the measurement is still at the roller position (No determination in step S96), the process of step S97 is performed. In the process of step S97, the elevator control panel 190 uses the roller position obtained by moving the current target roller position in the plus direction by a predetermined amount (0.5 mm) as the target roller position, and the floor on which the car 2 is currently landing. Register as floor data of. Further, the active control device 50 stores the registered target roller position in the storage unit 53.

Next, the active control device 50 turns off the measurement signal (step S98) and returns to the process of step S83. Since the measurement signal is OFF, in the process of step S83, a No determination is made, and as shown in FIG. 22, the operation ends. Then, when the car 2 lands on this floor again, in the process of step S42 shown in FIG. 12, the active control device 50 places the guide rollers 21A, 21B, and 21C at the target roller positions set in the process of step S97. move.

In the process of step S47, since the automatic operation diagnosis mode is in progress, a Yes determination is made, and the measurement signal is set to ON in the process of step S48. Then, the processes of steps S81 to S93 are performed again, and the torque value in the state where the target roller position is changed is detected.

Further, in the process of step S95, when it is determined that the car is out of the movable range of the car (No determination in step S95), the process of step S101 is performed. Further, in the process of step S96, when it is determined that the measurement has been completed (Yes determination in step S96), the active control device 50 turns off the signal during measurement in the positive direction (step S101).

Next, the active control device 50 sets the center position information of the movable range to the target roller position (step S102). As a result, when the car 2 lands on this floor next time, the roller position moves to the center position of the movable range of the active roller guide 12. Then, the active control device 50 turns on the signal during measurement in the negative direction (step S103).

Next, the active control device 50 turns off the measurement signal (step S98) and returns to the process of step S83. Since the measurement signal is OFF, in the process of step S83, a No determination is made, and as shown in FIG. 22, the operation ends. Then, when the car 2 lands on this floor again, in the process of step S42 shown in FIG. 12, the active control device 50 places the guide rollers 21A, 21B, and 21C at the target roller positions set in the process of step S102. move.

Further, since the signal during measurement in the negative direction is set to ON, the process of step S81 becomes a Yes determination, and the process of step S82 is not executed. Therefore, the processes of steps S83 to S93 are performed while the positive direction measurement signal is OFF.

Then, since the signal during measurement in the positive direction is OFF, the process of step S94 is determined as No, and the process of step S105 shown in FIG. 21 is executed. As shown in FIG. 21, in the process of step S105, the active control device 50 determines whether or not the position moved by a predetermined amount (0.5 mm) in the negative direction from the previous target roller position is within the car movable range. To do.

Then, in the process of step S105, when it is determined that the car is within the movable range of the car (Yes determination in step S195), the elevator control panel 190 performs the process of step S106. In the process of step S106, it is determined whether or not the roller position after the movement by the process of step S105 is the roller position for which the torque value at the time of opening / closing operation of the door motor 71 has been measured.

In the process of step S106, when it is determined that the measurement is still at the roller position (No determination in step S106), the process of step S107 is performed. In the process of step S107, the elevator control panel 190 uses the roller position obtained by moving the current target roller position in the minus direction by a predetermined amount (0.5 mm) as the target roller position, and the floor on which the car 2 is currently landing. Register as floor data of. Further, the active control device 50 stores the registered target roller position in the storage unit 53.

Next, the active control device 50 turns off the measurement signal (step S108), and performs the process of step S121 shown in FIG. In the process of step S121, it is determined whether or not the automatic driving diagnosis mode is canceled. If the active control device 50 determines that the automatic operation diagnosis mode has not been released in the process of step S121 (No determination in step S102), the process returns to the process of step S83.

Since the measurement signal is OFF, in the process of step S83, a No determination is made, and as shown in FIG. 22, the operation ends. Then, when the car 2 lands on this floor again, in the process of step S42 shown in FIG. 12, the active control device 50 places the guide rollers 21A, 21B, and 21C at the target roller positions set in the process of step S107. move.

In the process of step S47, since the automatic operation diagnosis mode is in progress, a Yes determination is made, and the measurement signal is set to ON in the process of step S48. Then, the processes of steps S81 to S93 are performed again, and the torque value in the state where the target roller position is changed is detected.

Further, in the process of step S105, when it is determined that the car is out of the movable range of the car (No determination in step S105), the process of step S111 is performed. Further, in the process of step S106, when it is determined that the measurement has been completed (Yes determination in step S106), the active control device 50 turns off the signal during measurement in the negative direction (step S111).

Next, the active control device 50 sets the center position information of the movable range to the target roller position (step S112). As a result, when the car 2 lands on the floor next time, the roller position moves to the center position of the movable range of the active roller guide 12. Then, the active control device 50 releases the automatic driving diagnosis mode (step S113).

According to this automatic driving diagnosis mode, torque value information for each roller position can be acquired while the car 2 is normally operated.

Next, the active control device 50 turns off the measurement signal (step S108), and performs the process of step S121 shown in FIG. When it is determined in the process of step S121 that the automatic operation diagnosis mode is canceled (Yes determination in step S121), the elevator control panel 190 is in the positive direction of the torque value information stored in the storage unit 196. Search for the smallest torque value in the measurement. Then, the elevator control panel 190 searches for the roller position information that has the minimum torque value (step S122).

Next, the elevator control panel 190 searches for the minimum torque value in the negative direction measurement among the torque value information stored in the storage unit 196. Then, the elevator control panel 190 searches for the roller position information that has the minimum torque value (step S123).

Next, the elevator control panel 190 calculates the average value of the roller positions searched in the processes of steps S122 and S123 in the plus direction and the minus direction (step S124). That is, in the process of step S124, the center position of the roller position searched in the processes of steps S122 and S123 is calculated in the same manner as in step S73.

Next, the elevator control panel 190 determines whether or not the torque value at the current roller position is smaller than the torque value at the previous roller position (step S125). The torque value of the previous roller position is the torque value of the roller position set in the previous automatic operation diagnosis mode. The torque value at the roller position this time is the smallest torque value among the torque values measured in the automatic operation diagnosis mode this time. That is, the smaller torque value among the torque values considered in steps S122 and S172 is set.

When it is determined in the process of step S125 that the torque value of the roller position this time is smaller (Yes determination in step S125), the active control device 50 stores the roller position measured this time in the storage unit 53 (step S126). .. Here, the roller position measured this time is the roller position calculated in the process of step S124.

Further, in the process of step S125, when it is determined that the torque value of the previous roller position is smaller (No determination in step S125), the active control device 50 stores the previously measured roller position in the storage unit 53 (step). S127).

Then, the active control device 50 sets the roller position when the car 2 lands on the current floor to the roller position stored in the storage unit 53 (step S128). As a result, the roller position, that is, the car position search operation using the automatic driving diagnosis mode is completed. As a result, the roller position where the torque value of the door motor 71 is minimized can be updated, and it is possible to prevent an overload abnormality from occurring in the door motor 71. Further, according to the automatic driving diagnosis mode, the car position can be automatically diagnosed and searched while the elevator 1 is normally operated.

The above-mentioned operation may be performed simultaneously for setting the roller position and measuring the torque value in the first direction X and the second direction Y, or separately for the first direction X and the second direction Y. It may be carried out in. Alternatively, the roller position may be set and the torque value may be measured in only one of the first direction X and the second direction Y.

Further, in the above-described embodiment, an example in which the active control device 50 determines ON / OFF of various signals (flags) has been described, but the present invention is not limited to this, and the elevator control panel 190 implements the determination. You may. Further, the car side control unit 15 that controls the entire car 2 may be implemented.

The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the gist of the invention described in the claims.

Although words such as "parallel" and "orthogonal" have been used in the present specification, these do not mean only strict "parallel" and "orthogonal", but include "parallel" and "orthogonal". Further, it may be in a "substantially parallel" or "substantially orthogonal" state within a range in which the function can be exhibited.

1 ... Elevator, 2 ... Car, 3 ... Guide rail, 10 ... Car room, 11 ... Door, 12 ... Active roller guide, 13 ... Car side engaging part, 15 ... Car side control part, 21A, 21B, 21C ... Guide rollers, 22, 24 ... Drive mechanism, 31 ... Roller drive motor, 50 ... Active control device (control unit), 51, 61 ... Controller, 52, 62 ... Calculation unit, 53 ... Storage unit, 54, 64 ... Motor Current detector, 55, 65 ... Input / output circuit, 56, 66 ... A / D converter, 60 ... Door control device (control unit), 71 ... Door motor, 81 ... Acceleration sensor, 100 ... Hoisting machine, 130 ... Rope, 190 ... Elevator control panel (control unit), 191 ... Power supply, 192 ... Landing position information acquisition unit, 193 ... Stop position information acquisition unit, 194 ... Maintenance mode input signal output unit, 195 ... Active operation permission signal output unit , 196 ... storage unit, 197 ... door motor torque value information acquisition unit, 198 ... door open / close command signal output unit, 200 ... hoistway, 201 ... boarding / alighting area, 202 ... doorway, 203 ... building side door, 204 ... building side staff Joint part

Claims (7)

1. The car-side engaging portion provided on the car-side door of the car and the building-side engaging portion provided on the building-side door on the floor where the car stops are engaged, and the car-side door and the building side are engaged. An elevator whose doors open and close in conjunction with each other
   A guide rail erected along the direction in which the car moves up and down,
   An active roller guide that guides the car along the guide rail and moves the car horizontally.
   A door motor that opens and closes the car side door,
   A control unit that controls the door motor and the active roller guide is provided.
   The control unit is an elevator that opens and closes the car side door in a state where the guide roller of the active roller guide is moved by a certain amount, and measures the torque value applied to the door motor during the opening and closing operation.
2. The first aspect of claim 1, wherein the control unit measures a torque value applied to the door motor during an opening / closing operation with the guide roller moved to the maximum extent, and determines whether or not the torque value exceeds a threshold value. Elevator.
3. Each time the control roller moves the guide roller by a predetermined amount, the control unit acquires a torque value applied to the door motor during the opening / closing operation.
   The elevator according to claim 1, wherein the guide roller is moved to a position where the torque value is minimized.
4. When the car lands on the floor, the control unit moves the guide roller to a position moved by a predetermined amount from the previous position of the guide roller, and obtains a torque value applied to the door motor during the opening / closing operation. The elevator according to item 3.
5. The elevator according to claim 3, wherein the control unit has a storage unit that stores the detected torque value together with roller position information indicating the position of the corresponding guide roller.
6. In the storage unit, the torque value and the roller position information are stored as floor data for each floor on which the car lands.
   The elevator according to claim 5, wherein the control unit searches for a position where the torque value is minimized for each floor on which the car lands.
7. The car-side engaging portion provided on the car-side door of the car and the building-side engaging portion provided on the building-side door on the floor where the car stops are engaged, and the car-side door and the building side are engaged. This is an elevator control method in which the doors open and close in conjunction with each other.
   A process of moving the guide roller of the active roller guide that moves the car in the horizontal direction by a certain amount when the car lands on the floor.
   The process of opening and closing the car side door and
   The process of measuring the torque value applied to the door motor that drives the car side door during the opening and closing operation, and
   Elevator control methods including.

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